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\n\n[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you\n- Open a pull request for review\n- Mark a draft as ready\n- Comment \"@codex review\".\n\nIf Codex has suggestions, it will comment; otherwise it will react with 👍.\n\n\n\n\nCodex can also answer questions or update the PR. Try commenting \"@codex address that feedback\".\n \n

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🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused change =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline b339d54\ngit diff --unified=120 b339d54^ b339d54 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Public surface and module maps =='\nast-grep outline crates/o7-a1-contracts/src/lib.rs --items all --view expanded\nfor f in \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/kind.rs \\\n crates/o7-a1-contracts/src/bounds.rs; do\n printf '\\n--- %s ---\\n' \"$f\"\n ast-grep outline \"$f\" --items all --view compact\ndone\n\nprintf '%s\\n' '== Admission, construction, validation, and serialization routes =='\nrg -n -C 10 --type rust \\\n '\\b(parse_artifact|validate_document|WireArtifact|FromDocument|from_document|validate_wire|EnvelopeV1::new|ArtifactRef::new|fn new|fn validate|MAX_BYTES|CEILING_IS_PARSEABLE|AboveByteCeiling|PayloadTooLarge|serde_json::to_(vec|string)|Serialize|Deserialize)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Aggregate visibility, conversion, and mutation surfaces =='\nrg -n -C 8 --type rust \\\n '\\b(pub\\s+(?:fn|struct|trait|type|use)|pub\$crate\$|EnvelopeV1|EnvelopeFieldsV1|ArtifactRef|ArtifactRefFields|ArtifactRefWire|EnvelopeWireV1|impl\\s+(?:<[^>]*>\\s*)?(?:From|TryFrom|Deref|DerefMut|AsMut)|to_fields|&mut self|->\\s*&mut)\\b' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Exact source for current boundary and aggregate APIs =='\nsed -n '1,340p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,680p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,380p' crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== Tests for construction-route equivalence =='\nrg -n -C 14 --type rust \\\n '\\b(AboveByteCeiling|PayloadTooLarge|same set|producer route|parse_artifact|EnvelopeV1::new|MAX_BYTES|oversized|15,394,155)\\b' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 32368\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Corrected module outlines =='\nfor f in \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs; do\n printf '\\n--- %s ---\\n' \"$f\"\n ast-grep outline \"$f\" --items all --view signatures\ndone\n\nprintf '%s\\n' '== Admission boundary =='\nnl -ba crates/o7-a1-contracts/src/json.rs | sed -n '1,320p'\n\nprintf '%s\\n' '== Complete EnvelopeV1 constructor, validation, wire conversion, and WireArtifact implementation =='\nrg -n -A90 -B15 --type rust \\\n 'pub fn new\$f: EnvelopeFieldsV1\$|fn validate\\(|impl FromDocument for EnvelopeV1|impl WireArtifact for EnvelopeV1|impl Serialize for EnvelopeV1|impl TryFrom' \\\n crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== ArtifactRef construction, conversion, validation, and serialization =='\nrg -n -A90 -B15 --type rust \\\n 'pub fn new\$|fn validate\\(|impl FromDocument for ArtifactRef|impl TryFrom|impl Serialize for ArtifactRef|struct ArtifactRef' \\\n crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== All public conversions and serialize implementations =='\nrg -n -C 6 --type rust \\\n 'impl\\s*(?:<[^>]*>\\s*)?(?:From|TryFrom|Serialize|Deserialize|Deref|DerefMut|AsRef|AsMut)\\b|derive\\([^)]*Serialize|pub\\s+fn\\s+(?:new|to_fields|parse)' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Route-equivalence test context and fixture constructors =='\nrg -n -A90 -B25 --type rust \\\n 'fn controller_fields|fn controller_envelope|fn rebuilt|an_oversized_but_otherwise_valid_envelope_is_refused_by_the_byte_bound|EnvelopeV1::new\\(.*\$.*parse_artifact' \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs\n```\n\nLength of output: 6195\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== JSON admission boundary =='\nsed -n '55,318p' crates/o7-a1-contracts/src/json.rs\n\nprintf '%s\\n' '== Envelope construction and admission implementation =='\nsed -n '235,610p' crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== ArtifactRef construction and conversion implementation =='\nsed -n '1,248p' crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== Scalar serialization and collection invariants =='\nsed -n '115,210p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '425,810p' crates/o7-a1-contracts/src/scalars.rs\n\nprintf '%s\\n' '== Producer fixtures and equivalence regressions =='\nrg -n -A110 -B20 --type rust \\\n 'fn controller_fields|fn controller_envelope|fn rebuilt|an_oversized_but_otherwise_valid_envelope_is_refused_by_the_byte_bound|AboveByteCeiling|PayloadTooLarge' \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs || true\n\nprintf '%s\\n' '== Public APIs and all aggregate construction sites =='\nrg -n -C 4 --type rust \\\n '^\\s*pub\\s+(?:fn|struct|enum|trait|type|use)|\\b(?:EnvelopeV1|ArtifactRef)::new\\s*\\(|\\b(?:EnvelopeV1|ArtifactRef)\\s*\\{|parse_artifact\\s*::?\\s*<' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**' || true\n```\n\nLength of output: 185051\n\n---\n\n

\n\n`@PhysShell` No actionable P0/P1 defect found in `b339d54`.\n\n`EnvelopeV1::new` now validates cross-field and reference rules, then checks its serialized byte length against `EnvelopeV1::MAX_BYTES`.\n\n`parse_artifact::` checks the received byte length, validates the document, and converts through `EnvelopeV1::new`. Therefore, it repeats the same value-level checks.\n\nThe two routes have one necessary byte-level distinction. `parse_artifact` measures the exact received bytes. It must reject an oversized document with valid JSON whitespace or other non-canonical formatting. `EnvelopeV1::new` measures the canonical bytes it emits. A value returned by `new` serializes to a document that satisfies the byte ceiling and the document structural rules.\n\n_{You are interacting with an AI system.}","@chatgpt-codex-connector P1 confirmed and fixed in `b339d54`. Note that @coderabbitai returned **clean** on this same head — so this is the second time the two reviewers have disagreed on `c973a58`-class questions, and the second time Codex was the one who was right.\n\nMaking the aggregates immutable closed mutation and left an asymmetry I did not look for:\n\n```text\nparse_artifact → cross-field rules + FD-1.4 byte ceiling\nEnvelopeV1::new → cross-field rules\n```\n\nTwo constructors, two meanings of the same type — and the weaker one was the *producer-facing* one. A producer could assemble 256 individually valid refs with large media types, get `Ok`, and hold a **15,394,155-byte** envelope that every conforming peer must reject. The failure surfaces at someone else's admission boundary, with the producer believing the artifact valid.\n\n**And the demonstration was my own regression, again.** You cited `tests/fd1_wire_seed.rs:951-972`; that test *built* the oversized envelope through `new` so it could serialize it and feed the bytes to `parse_artifact`. It was written to prove the byte bound fires on ingest. What it actually showed is that the producer path had no bound at all.\n\nThat is the sixth time on this PR that a test aimed at a rule demonstrated the hole beside it, and the mechanism has been identical every time: **to exercise one layer I need a way to reach it, and the way I reach it is itself an API.** Here it was not even a lever I added — it was `new` doing less than the door it was supposed to mirror.\n\n`new` now serializes the candidate and enforces `MAX_BYTES`, so both routes admit exactly the same set of envelopes. One serialization per construction against a 1 MiB ceiling is the price; the alternative is a type whose invariant is weaker than its own admission path.\n\nThe test asserts both directions now — `AboveByteCeiling` on the producer route, `PayloadTooLarge` on the wire — and builds the oversized document as JSON, because the value it used to serialize can no longer exist.\n\nHead `b339d54`. 84 tests. fmt clean; clippy clean in all four shapes.\n\n@codex review\n\n@coderabbitai review\n\nSame question, and one addition that this round makes concrete: **do the two construction routes now admit the same set?** Any rule `parse_artifact` enforces that `EnvelopeV1::new` does not — or the reverse — is the same defect wearing different clothes.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `c973a58b67`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce the byte ceiling during checked construction**\n\nWhen a downstream producer supplies 256 individually valid references with large media types, this constructor returns `Ok` after checking only value-level cross-field rules, and the public `Serialize` implementation can then emit a non-conforming envelope without another admission pass. The regression at `tests/fd1_wire_seed.rs:951-972` demonstrates this exact public route: `EnvelopeV1::new` produces an envelope whose serialized document exceeds 14 MiB, although the authoritative B1 blob `3b26849cc39a3391aaed46cca56be3b6715afabb` states in FD-1.4 that typed A1 JSON objects are limited to 1 MiB; a peer using `parse_artifact` therefore rejects an object the producer holds as admitted. Ensure checked construction/serialization enforces the hard ceiling instead of requiring callers to round-trip locally generated artifacts through admission.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/c973a58b67b82db6406d73aed038cd454dae2b6d/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.",275,"\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline c973a58\ngit diff --unified=120 c973a58^ c973a58 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Crate surface =='\nast-grep outline crates/o7-a1-contracts/src/lib.rs --items all --view expanded\nsed -n '1,240p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== Aggregate and admission module maps =='\nfor file in \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/kind.rs; do\n printf '\\n--- %s ---\\n' \"$file\"\n ast-grep outline \"$file\" --items all --view compact\ndone\n\nprintf '%s\\n' '== Public surface, construction, conversions, mutation, and serde =='\nrg -n -C 8 --type rust \\\n '\\b(pub\\s+(?:fn|struct|enum|trait|type|use)|pub\$crate\$|EnvelopeV1|EnvelopeFieldsV1|ArtifactRef|ArtifactRefFields|ArtifactRefWire|EnvelopeWireV1|parse_artifact|validate_document|WireArtifact|FromDocument|from_document|validate_wire|impl\\s+(?:<[^>]*>\\s*)?(?:From|TryFrom)|impl\\s*(?:<[^>]*>\\s*)?Deserialize|derive\$[^)]*Deserialize|DerefMut|AsMut|&mut\\s+self|to_fields|new\\s*\\()' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== All aggregate literals, conversions, and mutation call sites =='\nrg -n -C 6 --type rust \\\n '\\b(?:EnvelopeV1|EnvelopeFieldsV1|ArtifactRef|ArtifactRefWire|EnvelopeWireV1)\\s*\\{|(?:EnvelopeV1|ArtifactRef)::(?:new|validate)|\\.to_fields\\(\$|\\.(?:producer_role|provider_|artifact_refs|media_type|size|kind|digest)\\s*=' \\\n crates \\\n -g '!target/**'\n\nprintf '%s\\n' '== Public signatures exposing internal or dependency types =='\nrg -n -C 5 --type rust \\\n 'pub\\s+(?:fn|type|trait|struct|enum|use).*?(?:Digest256|serde_json::Value|Value|ArtifactRefWire|EnvelopeWireV1|FromDocument)|->\\s*(?:&|&mut)?\\s*(?:Digest256|serde_json::Value|Value|ArtifactRefWire|EnvelopeWireV1)' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Admission and producer API tests =='\nrg -n -C 10 --type rust \\\n 'no_edit_can_turn|to_fields|EnvelopeV1::new|ArtifactRef::new|parse_artifact|from_document|unchecked|mutation|provider.*controller|controller.*provider' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 114517\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Admission boundary and sealing =='\nast-grep outline crates/o7-a1-contracts/src/json.rs --items all --view signatures\nsed -n '1,320p' crates/o7-a1-contracts/src/json.rs\n\nprintf '%s\\n' '== Exact aggregate APIs =='\nsed -n '1,620p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,340p' crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== All conversion and mutability implementations =='\nrg -n -C 8 --type rust \\\n 'impl\\s*(?:<[^>]*>\\s*)?(?:From|TryFrom|Deref|DerefMut|AsRef|AsMut)\\b|fn\\s+\\w+\\s*\$\\s*&mut\\s+self|->\\s*&mut|pub\\s+fn\\s+(?:new|to_fields|validate|from_document)|trait\\s+(?:WireArtifact|FromDocument)' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Aggregate construction and mutation outside unit-test modules =='\nrg -n -C 5 --type rust \\\n '\\b(?:EnvelopeV1|ArtifactRef)\\s*\\{|(?:EnvelopeV1|ArtifactRef)::(?:new|try_from|from)|\\.(?:producer_role|provider_execution_receipt_ref|model_identity|prompt_digest|tool_policy_digest|artifact_refs|kind|media_type|digest|size)\\s*=' \\\n crates \\\n -g '!target/**' \\\n -g '!**/tests/**'\n\nprintf '%s\\n' '== Public API declarations and internal-type exposure =='\nrg -n -C 5 --type rust \\\n '^\\s*pub(?:\\([^)]*\$)?\\s+(?:fn|struct|enum|trait|type|use|const)|->\\s*(?:&|&mut)?\\s*(?:serde_json::Value|ArtifactRefWire|EnvelopeWireV1|FromDocument|Digest256)' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Serde implementations for aggregate and producer-field types =='\nrg -n -C 5 --type rust \\\n 'impl\\s*(?:<[^>]*>\\s*)?Deserialize\\b|derive\\([^)]*Deserialize|impl\\s*(?:<[^>]*>\\s*)?Serialize\\b|derive\\([^)]*Serialize' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== `WireArtifact` implementations and all uses =='\nrg -n -C 6 --type rust \\\n '\\b(?:WireArtifact|FromDocument|parse_artifact|from_document|validate_document|validate_wire)\\b' \\\n crates \\\n -g '!target/**'\n```\n\nLength of output: 193202\n\n---\n\n

\n\n`@PhysShell` No actionable P0/P1 defect found in `c973a58`.\n\n`EnvelopeV1` and `ArtifactRef` have private fields. Their public constructors validate before they return a value. Their public APIs expose no mutable accessors, `DerefMut`, `AsMut`, or unchecked conversion.\n\n`EnvelopeV1::to_fields()` returns `EnvelopeFieldsV1`, not a mutable view of an admitted envelope. A caller must use `EnvelopeV1::new()` to create an envelope again.\n\n`WireArtifact` remains sealed through the private `sealed::FromDocument` supertrait. `validate_document` and `from_document` are crate-private. A downstream crate cannot parameterize the byte ceiling or partially execute admission.\n\n`parse_artifact::` remains the public bytes-to-envelope route.\n\n_{You are interacting with an AI system.}","Fixed in `c973a58`. @coderabbitai's construction case and @chatgpt-codex-connector's mutation case are one defect, and the mutation form is what determined the fix.\n\n```text\nEnvelopeFieldsV1 public, freely mutable, carries no authority\nEnvelopeV1::new checks, and is the only public way in\nEnvelopeV1 private fields, read accessors, no setters\nto_fields() copies values out for editing; new() to come back\n```\n\nThe contract owner set four constraints. Each, and how it is met — including the one that was **not** met by my first attempt:\n\n**1 — No public unchecked conversion.** There is now no `From` into either aggregate at all, public *or* private. My first pass left two: `From for ArtifactRef` and `From for EnvelopeV1`. Both were unreachable downstream, so they technically satisfied \"no *public* unchecked conversion\" — and both still built an unvalidated aggregate inside the crate, which is the same claim with an asterisk. `ArtifactRefWire` now converts via `TryFrom` routed through `ArtifactRef::new`; `EnvelopeWireV1` converts into **fields**, never into an envelope, and `from_document` calls `new`. An unvalidated aggregate no longer exists anywhere, for any statement.\n\n**2 — No way back in.** No `&mut` accessor, no `DerefMut`, no `AsMut`, no public field on either aggregate. `validate()` is now private on both: with construction checked, a public validator only invites the belief that it is sometimes needed — which is the belief this whole PR has been deleting.\n\n**3 — `rebuild` is not in-place, and is not a method.** Editing is `to_fields()` → edit → `new()`. A `rebuild(&mut self)` would leave an admitted-typed value violating its own invariant *between two statements*, where a panic handler, a log, or a concurrent borrow can observe a state the type claims cannot occur. Not having the method is cheaper than documenting why it must be careful.\n\n**4 — The regression is a class.** `no_edit_can_turn_an_admitted_envelope_into_an_invalid_one` covers the reported role flip, its mirror (provider → controller keeping evidence), each of the four provider-only fields added to a controller envelope, each removed from a provider one, and a benign edit that must still succeed — so the rule is the cross-field check and not a constructor that refuses everything.\n\nOne consequence worth naming: several tests used to build an invalid envelope *as a value* and serialize it. That is now impossible, so they build the **document** instead — which is what a non-conforming peer actually sends, and a more honest fixture than the one it replaces.\n\nHead `c973a58`. 84 tests. fmt clean; clippy clean in all four shapes — lib, lib+targets, workspace, workspace+targets. Lib-only is the one CI runs and the one `--all-targets` masked two commits ago.\n\n@coderabbitai review\n\n@codex review\n\nSame single question as the last pass, on the new head: **find any publicly reachable way to weaken, skip, parameterise, or partially execute the admission policy** — now including *revoke it after the fact*, which is the axis this round added.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","### Summary\n\n* Made every `EnvelopeV1` field private and added read-only accessors, preventing downstream field assignment from invalidating an admitted envelope. [crates/o7-a1-contracts/src/envelope.rsL159-L191](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/envelope.rs#L159-L191) [crates/o7-a1-contracts/src/envelope.rsL299-L360](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/envelope.rs#L299-L360)\n* Added the producer-facing `EnvelopeFieldsV1` input type and checked `EnvelopeV1::new`/`rebuild` APIs. Both initial construction and subsequent edits now enforce all aggregate cross-field rules. [crates/o7-a1-contracts/src/envelope.rsL193-L257](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/envelope.rs#L193-L257) [crates/o7-a1-contracts/src/envelope.rsL260-L297](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/envelope.rs#L260-L297)\n* Made `ArtifactRef` fields private and added a checked constructor plus read-only accessors, preventing invalid media-type and size combinations from being constructed publicly. [crates/o7-a1-contracts/src/refs.rsL45-L59](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/refs.rs#L45-L59) [crates/o7-a1-contracts/src/refs.rsL87-L128](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/src/refs.rs#L87-L128)\n* Updated fixtures and regression coverage to use checked producer construction. Added an explicit regression proving that changing an admitted controller envelope to a provider role is rejected rather than producing an invalid aggregate. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL302-L354](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L302-L354)\n* Committed the changes as `a913bdb` (`A1-V0: make aggregate admission durable`).\n* The pre-existing `fuzz/Cargo.lock` working-tree modification was preserved and excluded from the commit.\n* ⚠️ A pull request could not be created because this environment exposes no `make_pr` tool, has no `make_pr` executable, and the repository has no configured Git remote.\n\n**Testing**\n\n* ✅ `cargo test -p o7-a1-contracts`\n* ✅ `cargo fmt --all --check && cargo check --workspace --all-targets && cargo clippy --workspace --all-targets -- -D warnings && cargo test --workspace`\n* ✅ `git diff --check`\n* ✅ `git commit -m \"A1-V0: make aggregate admission durable\"`\n* ⚠️ `command -v make_pr || true; find / -maxdepth 3 -type f -name '*make_pr*' 2>/dev/null | head; git remote -v` — no PR creation tool, executable, or Git remote was available.\n\n [View task →](https://chatgpt.com/s/cd_6a79b3dbf27c8191927db5cbdfd8c589)","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n`@PhysShell` The P1 remains unresolved.\n\nPublic aggregate fields permit invalid construction and post-admission mutation. `parse_artifact()` cannot preserve its admission postcondition while downstream code can assign to `EnvelopeV1` or `ArtifactRef` fields.\n\nThe required fix is private aggregate fields, read accessors, and checked producer-side construction. `#[non_exhaustive]` and public parts types do not prevent mutation after admission.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T11:20:15.335Z\nLearning: In the Rust crate `crates/o7-a1-contracts`, `EnvelopeV1` and `ArtifactRef` must not expose mutable public fields. Public fields allow downstream crates to construct invalid aggregates and to mutate aggregates after `parse_artifact()` admission, which revokes cross-field and reference invariants. Preserve the admission postcondition with private fields, read accessors, and a checked producer-side constructor.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n`@PhysShell` The P1 remains unresolved.\n\nA downstream crate can still construct invalid `ArtifactRef` and `EnvelopeV1` values with public struct literals. It can then call `framed_digest()` on an envelope that cannot pass admission.\n\nA checked producer construction API must prevent invalid aggregate construction before this PR can pass the merge gate.\n\n_{You are interacting with an AI system.}","@chatgpt-codex-connector Confirmed, and your variant is strictly stronger than @coderabbitai's — it settles the design question I had just said I could not settle alone.\n\nCodeRabbit's case was *construction*: a downstream struct literal mints an aggregate `validate()` would reject. Answerable, in principle, by gating construction.\n\nYours is *mutation after admission*:\n\n```rust\nlet mut env = parse_artifact::(&bytes)?; // fully admitted\nenv.producer_role = ProducerRole::Coder; // provider fields now missing\n```\n\nThat value went through every layer this PR spent seventeen rounds building, and is invalid anyway. It defeats the answer \"use `parse_artifact`\", because the object was obtained *from* `parse_artifact`. **Admission is a postcondition, and a `pub` field is a public setter that revokes it.**\n\nThis eliminates two of the three approaches I listed an hour ago:\n\n| approach | closes construction | closes mutation |\n|---|---|---|\n| `#[non_exhaustive]` + checked constructor | yes | **no** — field assignment is still allowed |\n| public `EnvelopeParts` + `build(parts)` | yes | **no** — same |\n| private fields + accessors | yes | yes |\n\nSo there is no fork left: the fields have to be private, with read accessors and a checked producer-side constructor. The cost I was weighing — 22 accessors, fixtures rewritten — is now the price of the only option that works, not a choice among three.\n\nTwo consequences worth stating plainly:\n\n1. **This pass is not clean**, and the merge gate should read it that way. Both reviewers found the same defect within minutes of each other on the same head; that has now happened three times on this PR, and each time it marked something real.\n2. It is the crate's own doctrine failing at the one place I never pointed it: *make illegal states unrepresentable* was applied to every ingest path and to no aggregate. `validate()` being `pub` was the tell — a validator a caller must remember is precisely what rounds 2 through 7 deleted everywhere else, and it survived on the producer side because I only ever attacked the parser.\n\n@PhysShell holds the call on whether this lands in #124 or as a separate slice — it is a producer-API change to a frozen-contract crate, and it is large. What is no longer open is *what* the fix is.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","@coderabbitai Confirmed, not dismissed — and it is the best finding of the falsification pass, because it is the one place where this crate violates its own stated doctrine rather than merely leaving a door ajar.\n\n`EnvelopeV1` and `ArtifactRef` have public fields, so a downstream crate writes a struct literal and gets an aggregate `validate()` would reject. Sixteen rounds went into \"enforcement lives in the type, never in a `validate()` a caller must remember\" — on the *ingest* side. On the construction side, `validate()` is exactly the thing a caller must remember. Your `ProviderExecutionReceipt` with `media_type: \"text/plain\"` and `size: u64::MAX` is unanswerable.\n\nIt also has teeth beyond tidiness: `framed_digest()` will happily compute an FD-1.2 identity for an envelope that could never be admitted, and FD-6 replay-vs-conflict rests on that identity.\n\n**Why I am not pushing a fix in the next commit.** The obvious remedies each cost something structural, and this crate already carries two parallel field lists:\n\n| approach | cost |\n|---|---|\n| `#[non_exhaustive]` + checked constructor | blocks literal *and* `..base` update syntax downstream; every fixture must move to the constructor |\n| private fields + accessors | 22 accessors on `EnvelopeV1`, and the producer still needs a way in |\n| public `EnvelopeParts` + `build(parts) -> Result` | a **third** copy of the 22 fields; and `Parts` must not implement `Deserialize`, or it becomes precisely the `bytes -> partially_validated_aggregate` route this pass was asked to falsify |\n\nThere is also a scoping question I cannot answer alone: A1 needs producers — the controller authors work orders — so \"make construction impossible\" is not the goal; \"make *invalid* construction impossible\" is, and that is a producer-API design decision on a frozen-contract crate.\n\n@PhysShell owns that call. Flagging rather than choosing, because picking the wrong one here means a third field list nobody wants, or a fixture rewrite that makes the tests harder to read than the contract they discharge.\n\nWhat I can say without a decision: this is a real P1, it is not closed, and the merge gate should treat this pass as **not clean**.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `3008906a54`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prevent mutation from bypassing envelope admission**\n\nEven after `FromDocument` was sealed, a downstream crate can parse a valid controller envelope and then assign `envelope.producer_role = ProducerRole::Coder`; the resulting `EnvelopeV1` lacks the provider fields that `EnvelopeV1::validate` requires at `envelope.rs:242-269`, yet it remains a serializable admitted type without any validation call. Private aggregate fields plus checked construction/mutation are needed so callers cannot invalidate the admission postcondition.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/3008906a549cb1b35235f8a93ce97e45b04a7890/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.",229,"\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

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\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused visibility delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 3008906\ngit diff --unified=120 3008906^ 3008906 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Crate root and public module declarations =='\nast-grep outline crates/o7-a1-contracts/src/lib.rs --items all --view expanded\nsed -n '1,240p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== Public API and admission topology =='\nrg -n -C 8 --type rust \\\n '\\b(pub\\s+(?:mod|use|fn|trait|struct|enum|type|const)|pub\$crate\$|parse_artifact|validate_document|WireArtifact|FromDocument|from_document|validate_wire|MAX_BYTES|CEILING_IS_PARSEABLE|MATERIALISING_PARSER_SAFE_MAX)\\b' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Deserialize implementations and aggregate constructors =='\nrg -n -C 8 --type rust \\\n 'impl\\s*(?:<[^>]*>\\s*)?Deserialize\\b|derive\\([^)]*Deserialize|impl\\s+(?:<[^>]*>\\s*)?(?:From|TryFrom)<|pub\\s+fn\\s+(?:new|parse)|\\b(?:EnvelopeV1|ArtifactRef)\\s*\\{' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Exact parser, sealed conversion, and aggregate definitions =='\nfor file in \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/kind.rs; do\n echo \"--- $file\"\n ast-grep outline \"$file\" --items all --view compact\ndone\nsed -n '1,310p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,360p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,300p' crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== Public signatures exposing non-public types or dependency types =='\nrg -n -C 4 --type rust \\\n 'pub\\s+(?:fn|type|trait|struct|enum|use).*?(?:Digest256|ArtifactRefWire|EnvelopeWireV1|serde_json::Value|Value|FromDocument)|->\\s*(?:&|&mut)?\\s*(?:Digest256|ArtifactRefWire|EnvelopeWireV1|serde_json::Value|Value)' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== External-facing use tests and all public names =='\nrg -n -C 6 --type rust \\\n 'parse_artifact|EnvelopeV1|ArtifactRef|WireArtifact|FromDocument|validate_document|serde_json::from_(?:str|slice|value)' \\\n crates/o7-a1-contracts/tests crates \\\n -g '!target/**'\n```\n\nLength of output: 190345\n\n---\n\n

\n\n`@PhysShell`\n\n**P1 — Public struct fields provide unchecked constructors for `ArtifactRef` and `EnvelopeV1`.**\n\n`ArtifactRef` exposes all fields publicly in `crates/o7-a1-contracts/src/refs.rs` Lines 54-58. `EnvelopeV1` exposes all fields publicly in `crates/o7-a1-contracts/src/envelope.rs` Lines 161-190.\n\nA downstream crate can construct an invalid reference without `parse_artifact()` or `ArtifactRef::validate()`:\n\n```rust\nlet invalid_ref = ArtifactRef {\n kind: ArtifactKindV1::ProviderExecutionReceipt,\n media_type: \"text/plain\".to_owned(),\n digest: WireDigest::of_bytes(b\"receipt\"),\n size: u64::MAX,\n};\n```\n\nThis value violates the typed media-type and FD-1.4 size rules. It can then be placed in a public `EnvelopeV1` struct literal. A downstream crate can also construct a `ProducerRole::Coder` envelope with the provider-only fields absent.\n\nNeither struct construction calls `validate_wire()` or `validate()`. Therefore, public callers can create and pass an invalid aggregate as an `ArtifactRef` or `EnvelopeV1`.\n\nMake aggregate fields private and provide checked constructors, or make construction types internal and expose only values admitted by `parse_artifact()`. Add a downstream-facing regression that an invalid aggregate cannot be constructed without a checked API.\n\n_{You are interacting with an AI system.}","@coderabbitai review\n\n@codex review\n\n**Final falsification pass on `3008906`.** One question, and deliberately nothing else — no local \"is this fix right\", no per-finding follow-up:\n\n> **Find any publicly reachable way to weaken, skip, parameterise, or partially execute the admission policy.**\n\nReachable means reachable in a downstream crate: by calling it, by naming it, or by having the compiler infer it. That last one is not hypothetical — it was the defect at `232b505`, where making an import `pub(crate)` closed the path a caller could *write* and left the one the compiler could *infer* through a `&Digest256` return.\n\n## What the topology is claimed to be\n\n```text\nuntrusted bytes\n │\n ▼\nparse_artifact::(bytes)\n │\n ├── protocol ceiling selected by T (WireArtifact::MAX_BYTES)\n ├── ceiling is parseable (const CEILING_IS_PARSEABLE)\n ├── document structural limits (validate_document, pub(crate))\n ├── typed construction (sealed::FromDocument)\n ├── cross-field validation (validate_wire)\n └── redacted failures (ParseError, category only)\n ▼\nadmitted T\n```\n\nAnd these are claimed **not** to exist publicly:\n\n| | |\n|---|---|\n| `Value -> T` | `from_document` sealed in a private module |\n| `bytes + caller_chosen_ceiling -> T` | ceiling is `T::MAX_BYTES`, not an argument |\n| `bytes -> partially_validated_document` | `validate_document` is `pub(crate)` |\n| unchecked constructor `-> T` | no public constructor bypasses `validate_wire` |\n| `Deserialize` for aggregate wire artifacts | `EnvelopeV1` / `ArtifactRef` do not implement it |\n| any error naming its input | every reject path redacted; 10 types asserted on the direct route |\n\nFalsify any row.\n\n## One change since your last pass that is worth attacking directly\n\nEvery module was `pub mod`, so the crate's true public API was every `pub` item by module path and the curated root list described an API the crate did not have — `unreachable_pub = deny` could never fire, because everything was reachable. Modules are now private and the root re-export list **is** the surface.\n\nThat is a large visibility change made late. Two things worth checking rather than trusting:\n\n1. Did anything that a legitimate consumer needs become unreachable — i.e. did I over-narrow, so that the first real consumer in step 2 has to widen it again?\n2. Did anything survive the narrowing that should not have? The audit found `Preimage` (a public framing primitive whose `as_bytes` existed only for a unit test) and `MATERIALISING_PARSER_SAFE_MAX`. I found those by reading. That is exactly the method that missed the previous three.\n\nHead is `3008906`. 83 tests; `cargo fmt --check` clean; clippy clean as lib, lib+targets, workspace, and workspace+targets — the last CI failure was a lib-only dead-code error that `--all-targets` had masked locally, so the gate is now run in all four shapes.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `232b505bd7`\n \n\n

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","**_{_{![P0 Badge](https://img.shields.io/badge/P0-red?style=flat)}} Stop returning the leaking raw digest**\n\nFresh evidence after the re-export fix is that `Digest256` remains reachable through this public method (and the other public `digest`/`framed_digest` return types): in a downstream crate with no direct `o7-run` dependency, a generic `deserialize_same(_: &T, input: &str)` called with `WireDigest::of_bytes(...).inner()` lets `serde_json::from_str::(r#\"\"ghp_secret\"\"#)` infer `T = Digest256`, whose displayed error contains `\"ghp_secret\"`. Thus making the import `pub(crate)` does not make `WireDigest` the only digest in this crate's public API; avoid every raw-`Digest256` public signature or return `WireDigest` instead.\n\nAGENTS.md reference: [AGENTS.md:L44-L48](https://github.com/PhysShell/007/blob/232b505bd7c78d839a9d8cb828ebac3d4be1e03d/AGENTS.md#L44-L48)\n\nUseful? React with 👍 / 👎.","crates/o7-a1-contracts/src/scalars.rs","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

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\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 232b505\ngit diff --unified=120 232b505^ 232b505 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Module outlines =='\nfor file in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/kind.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs; do\n printf '\\n--- %s ---\\n' \"$file\"\n ast-grep outline \"$file\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== Public exports, Deserialize implementations, and error construction =='\nrg -n -C 8 --type rust \\\n 'pub\\s+(?:use|struct|enum|trait|type|fn)|pub\$crate\$\\s+use|impl\\s*(?:<[^>]*>\\s*)?Deserialize|derive\\([^)]*Deserialize|Deserializer|Visitor|deserialize_[a-z_]+|Error::custom|invalid_value|unknown_(?:variant|field)|unexpected|map_err|format!|to_string\\(|Digest256|DigestFormatError|WireDigest' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Direct serde tests and redaction coverage =='\nrg -n -C 10 --type rust \\\n 'serde_json::from_(?:str|slice|value)|ghp_|secret|redact|leak|Digest256|DigestFormatError|WireDigest' \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Cross-crate public dependency paths =='\nrg -n -C 6 --type rust \\\n 'pub\\s+use.*(?:Digest256|DigestFormatError)|pub\\s+(?:struct|enum)\\s+(?:Digest256|DigestFormatError)|impl\\s*(?:<[^>]*>\\s*)?Deserialize\\s+for\\s+Digest256|DigestFormatError' \\\n crates/o7-run \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n```\n\nLength of output: 199983\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Exact 232b505 diff =='\ngit show --format=fuller --unified=100 232b505 -- \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/framing.rs \\\n crates/o7-a1-contracts/src/bounds.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Public signatures that expose Digest256 =='\nrg -n -C 5 --type rust \\\n 'pub\\s+(?:fn|type|struct|enum|trait|use).*Digest256|pub\\s+fn\\s+\\w+[^{]*->\\s*(?:&?\\s*)?Digest256|impl\\s+From<\\s*Digest256\\s*>\\s+for\\s+WireDigest|fn\\s+inner\\s*\\(' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Crate root and scalar public API =='\nsed -n '50,80p' crates/o7-a1-contracts/src/lib.rs\nsed -n '70,90p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '430,475p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '75,95p' crates/o7-a1-contracts/src/framing.rs\nsed -n '100,118p' crates/o7-a1-contracts/src/bounds.rs\nsed -n '190,208p' crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== All public Deserialize implementations and public dependency re-exports =='\nrg -n -C 4 --type rust \\\n 'pub\\s+use|pub\\s+(?:struct|enum|type)|impl\\s*(?:<[^>]*>\\s*)?Deserialize' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 54350\n\n---\n\n

\n\n`@PhysShell` No actionable P0/P1 defect found in `232b505`.\n\n`o7_a1_contracts` no longer exports `Digest256` or `DigestFormatError`. `WireDigest` maps rejected digest text to `ScalarError::MalformedDigest`, which does not include the rejected value.\n\nThe remaining public signatures that use `Digest256` return or convert already valid digest values. They do not restore `serde_json::from_str::`.\n\n\n\n_{You are interacting with an AI system.}","@coderabbitai @chatgpt-codex-connector P0 confirmed and fixed in `232b505`. You both found it independently, on the same head, within minutes — same type, same route, same reasoning. On this PR that has now happened twice, and both times it marked a defect that was actually there rather than one reviewer's heuristic firing.\n\n`Digest256` was publicly re-exported from this crate's root, so:\n\n```rust\nserde_json::from_str::(r#\"\"ghp_secret\"\"#)\n```\n\nreached `o7-run`'s `DigestFormatError`, whose `Display` quotes the rejected string.\n\n**This is the round-4 P0, unfixed for ten rounds.** Round 4 added `WireDigest` — a redacting wrapper — and left the re-export sitting beside it. The fix covered every wire *field* and none of the direct route, and the doc comment on the wrapper described the leak accurately while the leak stayed public two lines above it. It has been sitting under a paragraph explaining why it matters this entire time.\n\n**Why the seven-case regression in the previous commit missed it**, which is the part I'd want a future reader to have:\n\n> I enumerated the types this crate **defines**, not the types it **exports**.\n\nA re-export is a public reject path authored somewhere else. \"Which of my types leak?\" does not cover it, and that question is exactly what I asked myself one commit ago while writing that a P0 found by example is a sample, not a bound. I widened the sample and kept the same frame.\n\n`Digest256` is now `pub(crate)`. `WireDigest` is the only digest in the public API, and it is the one that redacts.\n\n## One instance I am not fixing here, on purpose\n\n`o7-run`'s `DigestFormatError` still carries the rejected value for its own callers, and `o7-run` re-exports both types from its root. That is the same class in another crate's public error type. It is real, and it is not this PR's slice — separate crate, separate public API, and this repository's practice has been one concern per PR (the R1 fixture, S1, and this seed each got their own). It is recorded at `WireDigest` rather than left to be rediscovered, and @PhysShell can decide whether it rides along or gets its own.\n\nHead is `232b505`. 83 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@coderabbitai review\n\n@codex review\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `a11d69eda5`\n \n\n

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","**_{_{![P0 Badge](https://img.shields.io/badge/P0-red?style=flat)}} Stop re-exporting the leaking raw digest type**\n\nThe public `Digest256` re-export remains the public reject path missed by the seven-case regression: `serde_json::from_str::(r#\"\\\"ghp_secret\\\"\"#)` reaches `o7-run`'s `DigestFormatError`, whose `Display` includes its `value`, and `Digest256::parse` exposes the same content-bearing error directly. Consequently, downstream callers can still log a credential through this crate despite `WireDigest` redacting the corresponding A1 field path; expose only the wrapper or otherwise prevent the raw error from carrying rejected input.\n\nAGENTS.md reference: [AGENTS.md:L44-L48](https://github.com/PhysShell/007/blob/a11d69eda5510c0f04738e1c251d917b62c356fd/AGENTS.md#L44-L48)\n\nUseful? React with 👍 / 👎.","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision and focused diff =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline a11d69e\ngit diff --unified=120 a11d69e^ a11d69e -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== module outlines =='\nfor file in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/kind.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/bounds.rs; do\n printf '\\n--- %s ---\\n' \"$file\"\n ast-grep outline \"$file\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== public API, deserialization, and error construction =='\nrg -n -C 10 --type rust \\\n 'pub\\s+(struct|enum|trait|type|use|fn)|impl\\s*(<[^>]*>\\s*)?Deserialize|derive\\([^)]*Deserialize|Deserializer|Visitor|deserialize_[a-z_]+|String::deserialize|u32::deserialize|u64::deserialize|Vec::<|next_(element|value)|Error::custom|invalid_value|unknown_(variant|field)|unexpected|map_err|format!|to_string\\(' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== exact scalar and enum implementations =='\nsed -n '1,620p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,580p' crates/o7-a1-contracts/src/kind.rs\nsed -n '1,340p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,340p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,380p' crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== direct serde tests and secret-redaction coverage =='\nrg -n -C 12 --type rust \\\n 'serde_json::from_(str|slice|value)|ghp_|secret|redact|leak|FrozenVersion|BoundedVec|WireDigest|Id|Timestamp|CommitId|Optional|ProducerRole|MessageKindV1|ArtifactKindV1' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 202198\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Digest256 public export and local wrapper =='\nnl -ba crates/o7-a1-contracts/src/lib.rs | sed -n '55,75p'\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '400,470p'\nrg -n -C 8 --type rust \\\n 'pub use.*Digest256|Digest256|DigestFormatError|impl.*Deserialize.*Digest|fn deserialize' \\\n crates/o7-run crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== Direct external-facing uses =='\nrg -n -C 5 --type rust \\\n 'serde_json::from_(str|slice|value)\\s*::?\\s*<\\s*(?:[A-Za-z0-9_:]+::)?Digest256|Digest256::parse|DigestFormatError' \\\n . \\\n -g '!target/**'\n```\n\nLength of output: 1009\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nshow_range() {\n awk -v start=\"$2\" -v end=\"$3\" \\\n 'NR >= start && NR <= end { printf \"%6d\\t%s\\n\", NR, $0 }' \"$1\"\n}\n\nprintf '%s\\n' '== Digest256 public export and local wrapper =='\nshow_range crates/o7-a1-contracts/src/lib.rs 55 75\nshow_range crates/o7-a1-contracts/src/scalars.rs 400 470\n\nprintf '%s\\n' '== Digest256 implementation and error formatting =='\nrg -n -C 8 --type rust \\\n 'pub use.*Digest256|Digest256|DigestFormatError|impl.*Deserialize.*Digest|fn deserialize' \\\n crates/o7-run crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== Direct external-facing uses =='\nrg -n -C 5 --type rust \\\n 'serde_json::from_(str|slice|value)\\s*::?\\s*<\\s*(?:[A-Za-z0-9_:]+::)?Digest256|Digest256::parse|DigestFormatError' \\\n . \\\n -g '!target/**'\n```\n\nLength of output: 120514\n\n---\n\n

\n\n`@PhysShell` **P0 — The public `Digest256` re-export still exposes the known credential-leak path.**\n\n`crates/o7-a1-contracts/src/lib.rs` Line 68 publicly re-exports `Digest256`.\n\n`Digest256::deserialize()` in `crates/o7-run/src/event.rs` Line 97 parses a `String` and propagates `DigestFormatError`. `DigestFormatError` formats its public `value` field at Line 36.\n\nA downstream caller can therefore log a rejected secret:\n\n```rust\nuse o7_a1_contracts::Digest256;\n\nlet error = serde_json::from_str::(r#\"\"ghp_secret\"\"#)\n .expect_err(\"must reject\")\n .to_string();\n\nassert!(error.contains(\"ghp_secret\"));\n```\n\n`WireDigest` redacts this route for wire fields. The root-level `Digest256` re-export leaves the same direct route public.\n\nRemove `Digest256` from the public A1 contracts API, or replace the re-export with an API that does not expose its `Deserialize` and `DigestFormatError` paths. Add a direct-route regression for the exported API.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T10:51:56.254Z\nLearning: In Rust crate `crates/o7-a1-contracts`, a redacting wrapper such as `WireDigest` does not close credential disclosure if the wrapped dependency type remains publicly re-exported with its own `Deserialize` implementation and error display that includes rejected input. Review all re-exported public types as direct reject paths.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","@coderabbitai P0 confirmed and fixed in `a11d69e`. You answered the general question I asked one commit earlier, and the answer was **two** more.\n\n`FrozenVersion::::deserialize` opened with `u32::deserialize`. A JSON string fails inside that prelude, before any of my code runs:\n\n```text\ninvalid type: string \"ghp_...\", expected u32\n```\n\nThe redacting error below it was careful and unreachable. `BoundedVec` had the identical shape — a string where a sequence belongs.\n\n## The narrowing pattern, three rounds running\n\n| round | reported | fixed |\n|---|---|---|\n| 4 | `Digest256`'s error quotes the digest | wrapped **that type** |\n| 13 | three enums quote the variant | replaced **those three** |\n| 14 | two preludes quote the string | … |\n\nEach fix addressed the demonstrated instance and stopped. The general question — *which other public type has a reject path?* — first got asked out loud in round 13's comment, and answering it took one pass and produced two more. That is the actual lesson here, and it is not about serde: **a P0 found by example is a sample, not a bound.**\n\nBoth types now enter through a visitor with a `refuse_text!` macro giving a constant error on every text branch. Macro rather than two hand-written impls, so the next hand-written deserializer inherits it instead of re-deriving the reasoning.\n\n## One thing I got wrong on the first attempt, which the new test caught\n\nThe visitor must be entered through `deserialize_any`. My first version kept `deserialize_u64` / `deserialize_seq`, and `serde_json` rejects a string token *itself* before any `visit_*` method runs — so the leak survived the visitor entirely and the test failed with the original message intact:\n\n```text\nerror leaked content: invalid type: string \"ghp_...\", expected the frozen version number 1\n```\n\nWorth stating plainly because it inverts the usual shape on this PR: for once the fix's own defect was caught by the fix's own test rather than by the next reviewer. `deserialize_any` needs a self-describing format, which A1 is (FD-1.3).\n\nThe regression covers seven public types on the direct route — `FrozenVersion`, `BoundedVec`, `WireDigest`, `Id`, `Timestamp`, `CommitId`, `Optional` — and asserts the happy paths still parse, so the refusals are the rejected values and not deserializers that refuse everything.\n\nHead is `a11d69e`. 83 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@coderabbitai review\n\n@codex review\n\nSame standing question, since it has now paid twice: **is there a public type left whose reject path names its input?** The enum visitors from round 13 use `deserialize_str`, so a non-string token is refused by `serde_json` rather than by me — I believe that is safe because only a string can carry a credential, and I would rather have that checked than assumed.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision and focused delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline b1e682c\ngit diff --unified=120 b1e682c^ b1e682c -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== module structure =='\nfor file in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/kind.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs; do\n printf '\\n--- %s ---\\n' \"$file\"\n ast-grep outline \"$file\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== public types, error displays, and deserialization implementations =='\nrg -n -C 10 --type rust \\\n 'pub\\s+(struct|enum|trait|type|use|fn)|impl\\s*(<[^>]*>\\s*)?Deserialize|derive\\([^)]*Deserialize|Deserializer|Visitor|deserialize_[a-z_]+|#\\[error\\(|Error::custom|invalid_value|unknown_variant|unknown_field|unexpected|map_err|format!|to_string\\(' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== direct serde regression coverage and rejected-value markers =='\nrg -n -C 10 --type rust \\\n 'serde_json::from_(str|slice|value)|ghp_|secret|redact|leak|unknown variant|unknown field|FrozenVersion|BoundedText|BoundedVec|String::deserialize|ProducerRole|MessageKindV1|ArtifactKindV1' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== exact scalar and enum implementations =='\nsed -n '1,560p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,520p' crates/o7-a1-contracts/src/kind.rs\nsed -n '1,300p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,300p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,340p' crates/o7-a1-contracts/src/envelope.rs\n```\n\nLength of output: 124988\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== FrozenVersion and BoundedVec implementation =='\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '335,535p'\n\nprintf '%s\\n' '== enum deserialization macro and implementations =='\nrg -n -C 18 --type rust \\\n 'macro_rules!|impl.*Deserialize.*(ProducerRole|MessageKindV1|ArtifactKindV1)|visit_(str|string|u64|i64|unit|some|seq|map)|deserialize_' \\\n crates/o7-a1-contracts/src/kind.rs\n\nprintf '%s\\n' '== generic deserializer error propagation =='\nrg -n -C 8 --type rust \\\n 'String::deserialize|u32::deserialize|next_element|next_value|map_err\$serde::de::Error::custom\$|map_err\\(.*custom|serde::de::Error::custom' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== direct scalar and generic collection tests =='\nrg -n -C 12 --type rust \\\n 'from_str::<(FrozenVersion|BoundedText|BoundedVec|Id|CommitId|Timestamp|WireDigest)|ScalarError|unsupported version|invalid type|ghp_' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 1421\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nshow_range() {\n local file=\"$1\" start=\"$2\" end=\"$3\"\n printf '%s\\n' \"--- $file:$start-$end ---\"\n awk -v start=\"$start\" -v end=\"$end\" \\\n 'NR >= start && NR <= end { printf \"%6d\\t%s\\n\", NR, $0 }' \"$file\"\n}\n\nprintf '%s\\n' '== FrozenVersion and BoundedVec implementation =='\nshow_range crates/o7-a1-contracts/src/scalars.rs 335 535\n\nprintf '%s\\n' '== enum deserialization macro and implementations =='\nrg -n -C 18 --type rust \\\n 'macro_rules!|impl.*Deserialize.*(ProducerRole|MessageKindV1|ArtifactKindV1)|visit_(str|string|u64|i64|unit|some|seq|map)|deserialize_' \\\n crates/o7-a1-contracts/src/kind.rs\n\nprintf '%s\\n' '== generic deserializer error propagation =='\nrg -n -C 8 --type rust \\\n 'String::deserialize|u32::deserialize|next_element|next_value|map_err\$serde::de::Error::custom\$|map_err\\(.*custom|serde::de::Error::custom' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== direct scalar and generic collection tests =='\nrg -n -C 12 --type rust \\\n 'from_str::<(FrozenVersion|BoundedText|BoundedVec|Id|CommitId|Timestamp|WireDigest)|ScalarError|unsupported version|invalid type|ghp_' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 78148\n\n---\n\n

\n\n`@PhysShell` **P0 — `FrozenVersion` still leaks a rejected string through its `u32` deserialization prelude.**\n\n`FrozenVersion::deserialize()` calls `u32::deserialize(deserializer)` at `crates/o7-a1-contracts/src/scalars.rs` Line 457. A JSON string fails before the custom error at Line 463 can redact it.\n\n```rust\nserde_json::from_str::>(r#\"\"ghp_secret\"\"#)\n```\n\nSerde returns a type-mismatch error that includes `\"ghp_secret\"`. `FrozenVersion` is public and re-exported, so a downstream caller can log the rejected value directly.\n\nReplace the `u32::deserialize` prelude with a visitor that rejects every non-`u32` representation through a constant error. The visitor should not use serde’s default unexpected-value formatting. Add a direct-route regression for a secret string, in addition to the existing unsupported numeric-version tests.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T10:44:42.497Z\nLearning: In Rust crate `crates/o7-a1-contracts`, public scalar `Deserialize` implementations must redact errors from their deserializer prelude as well as from post-parse validation. For example, `FrozenVersion` must not delegate a JSON string to `u32::deserialize`, because serde can include the rejected string in its type-mismatch error before custom redaction runs.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","@chatgpt-codex-connector P0 confirmed and fixed in `b1e682c`. Reproduced first:\n\n```rust\nserde_json::from_str::(r#\"\"ghp_secret\"\"#)\n// Err: unknown variant `ghp_secret`, expected one of ...\n```\n\nA rejected artifact is untrusted input; AGENTS.md makes credential leakage a P0. `parse_artifact` never propagates serde text — but these enums are public, so the derived impl was reachable directly, and a derived enum deserializer names what it refused.\n\n**This is the same defect as round 4**, and that's the part worth recording. Round 4 found that `Digest256`'s re-export forwarded `DigestFormatError`, whose `Display` quotes the rejected digest; the fix was `WireDigest`, a redacting wrapper. It closed the one leak that had been demonstrated. What it did not do was ask the general question — *which other public types have a reject path?* Three did, and they had it for the same reason, from the same source, for eight more rounds.\n\nThe narrow fix and the general question are different work, and I did the first while writing a comment that sounded like the second.\n\nEach enum now parses by name through a visitor that reports the *field* it failed to recognise and never the value. Written as a macro rather than three hand-rolled impls, so a fourth closed enum inherits the behaviour by using it instead of by its author knowing the derive leaks — the derive is the trap, and \"remember not to use it\" is the class of fix this PR has already thrown away twice.\n\n**The regression asserts on the direct route**, deliberately:\n\n```rust\nserde_json::from_str::("ed) // and MessageKindV1, ArtifactKindV1\n```\n\nGoing through `parse_artifact` would prove only that *its* redaction works — never in doubt, and not where the leak was. That distinction is the same one that made five earlier tests document holes instead of closing them, so it is now stated in the test rather than left to the reader. It also asserts all 54 frozen names still parse, so the refusal is the unrecognised value and not a deserializer that refuses everything.\n\nHead is `b1e682c`. 82 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@codex review\n\n@coderabbitai review\n\nWorth aiming at: `Digest256`'s leak was found in round 4 and its siblings in round 13, so the useful question for this pass is not \"is this fix right\" but **which public type still has a reject path that names its input** — including `FrozenVersion`, `BoundedText`, `BoundedVec` and the `String::deserialize` prelude in every scalar, where a type mismatch is serde's error and not mine.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `48731892ed`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P0 Badge](https://img.shields.io/badge/P0-red?style=flat)}} Replace derived enum deserializers with redacting ones**\n\nFresh evidence after sealing `EnvelopeV1` is that these public enum types still expose direct deserialization: at `f445afb`, `serde_json::from_str::(r#\"\\\"ghp_secret\\\"\"#)` returns Serde's `unknown variant` error with the rejected value embedded in its `Display`, so logging an error from untrusted provider data copies a credential into logs despite `parse_artifact`'s redaction. `ProducerRole` and `ArtifactKindV1` use the same derive; give these enums custom deserializers that report only non-content-bearing shape/category information.\n\nAGENTS.md reference: [AGENTS.md:L44-L48](https://github.com/PhysShell/007/blob/48731892ed39d14fa91c073a0d7bf1117b08e290/AGENTS.md#L44-L48)\n\nUseful? React with 👍 / 👎.","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 4873189\ngit diff --unified=120 4873189^ 4873189 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Module outlines =='\nfor file in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/bounds.rs; do\n printf '\\n--- %s ---\\n' \"$file\"\n ast-grep outline \"$file\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== Public API, parsing, and construction routes =='\nrg -n -C 8 --type rust \\\n '\\b(pub\\s+(?:fn|trait|struct|use)|parse_artifact|validate_document|validate_wire|FromDocument|from_document|WireArtifact|Deserialize|deserialize|from_(?:str|slice|value)|TryFrom|From<|EnvelopeV1|ArtifactRef)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Exact admission implementation =='\nsed -n '1,330p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,330p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,300p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,540p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,160p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== Bound and regression coverage =='\nrg -n -C 12 --type rust \\\n '\\b(MAX_BYTES|MATERIALISING_PARSER_SAFE_MAX|CEILING_IS_PARSEABLE|PayloadTooLarge|ArrayTooLong|MAX_ARRAY_LEN|MAX_CONTROL_ARTIFACT_BYTES|MAX_EVIDENCE_BLOB_BYTES|parse_artifact|validate_document|BOM)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 166168\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Exact 4873189 change =='\ngit diff --unified=80 4873189^ 4873189 -- \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs\n\nprintf '%s\\n' '== All deserialization and admission declarations =='\nrg -n -C 5 --type rust \\\n 'impl\\s*(<[^>]*>\\s*)?Deserialize\\b|derive\$[^)]*Deserialize|trait\\s+WireArtifact|trait\\s+FromDocument|fn\\s+from_document|fn\\s+validate_document|fn\\s+parse_artifact|impl\\s+.*WireArtifact\\s+for' \\\n . -g '!target/**'\n\nprintf '%s\\n' '== All calls and exports for internal admission functions =='\nrg -n -C 5 --type rust \\\n '\\b(validate_document|from_document|parse_artifact|FromDocument|WireArtifact)\\b' \\\n . -g '!target/**'\n\nprintf '%s\\n' '== Envelope and reference public construction surface =='\nsed -n '45,140p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,115p' crates/o7-a1-contracts/src/refs.rs\nrg -n -C 5 --type rust \\\n '\\b(EnvelopeV1|ArtifactRef)\\s*\\{' \\\n crates -g '!target/**'\n\nprintf '%s\\n' '== Error construction from untrusted input =='\nrg -n -C 6 --type rust \\\n 'ParseError::Invalid|ParseError::SchemaMismatch|map_err\\(|Error::custom|format!\\(|to_string\\(\$' \\\n crates/o7-a1-contracts/src -g '!target/**'\n```\n\nLength of output: 186140\n\n---\n\n

\n\n`@PhysShell` No actionable P0/P1 defect found in `4873189`.\n\n`validate_document` is crate-private and is not re-exported. `parse_artifact` is the only public bytes-to-wire-artifact route.\n\n`WireArtifact::from_document` is inaccessible to downstream crates. The method belongs to the private `sealed::FromDocument` trait. The `pub(crate)` re-export does not change downstream visibility.\n\n`parse_artifact` applies `T::CEILING_IS_PARSEABLE`, `T::MAX_BYTES`, document validation, private wire conversion, and cross-field validation in sequence. `EnvelopeV1` is the only `WireArtifact` implementation and has the 1 MiB ceiling.\n\n\n\n_{You are interacting with an AI system.}","@coderabbitai P1 confirmed and fixed in `4873189`. This is the falsification I explicitly asked for one commit earlier, and it arrived faster than I'd have liked.\n\nThe previous commit moved the ceiling onto `WireArtifact::MAX_BYTES` and made an unparseable ceiling a compile error — but `CEILING_IS_PARSEABLE` is evaluated *inside* `parse_artifact`, and `validate_document(bytes, max_bytes)` was still public and still took the ceiling as an argument. So the public surface kept exactly what that commit claimed to have removed: an entry point a caller can aim at 64 MiB, sitting outside the guard.\n\n**And the demonstration was, once again, in my own test suite.** The same commit that added the guard also added:\n\n```rust\nvalidate_document(&bytes, MAX_EVIDENCE_BLOB_BYTES)\n```\n\ntwice — to isolate which layer rejected a document. That's the fifth time on this PR that a test written to prove a rule works has instead exhibited the route around it.\n\nThe pattern is specific enough to name now, and it isn't carelessness:\n\n> When I want to show *which* check fired, I reach for a way to disable the others. If that way is reachable from outside the crate, I have not measured the boundary — I have found a hole in it.\n\nEvery instance has this shape. `parse_payload` existed so a test could stop before cross-field rules. The public `Deserialize` was how tests asserted per-field strictness \"on every route\". The raised `max_bytes` isolated the byte bound. Each one was built as an instrument and each one was an API.\n\n`validate_document` is now `pub(crate)` and no longer re-exported. `parse_artifact` is the entire public admission surface.\n\n**The four tests are rerouted, not deleted, and every one is stronger for having no dial:**\n\n| test | before | now |\n|---|---|---|\n| malformed payloads, BOM | `validate_document` | through `parse_artifact` |\n| payload over bound | ceiling of `16` invented by the test | must actually exceed `EnvelopeV1::MAX_BYTES` |\n| global array bound | 50k refs under a raised ceiling | 4097 tiny values (~20 KB), where the walk is genuinely the layer that fires — *plus* 50k real refs, where the byte bound fires first |\n| 15 MB envelope | raise the ceiling, show it parses | shrink the same construction until it fits |\n\nThat last row is the general answer to \"which layer rejected this?\": vary the input, never the bound.\n\nHead is `4873189`. 81 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@coderabbitai review\n\n@codex review\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n`@PhysShell` P1 — Public `validate_document` bypasses the materialization guard.\n\n`validate_document(bytes, max_bytes)` remains public in `crates/o7-a1-contracts/src/json.rs` Line 208 and is re-exported in `crates/o7-a1-contracts/src/lib.rs` Line 64. A caller can invoke:\n\n```rust\nvalidate_document(&untrusted_bytes, MAX_EVIDENCE_BLOB_BYTES)\n```\n\nThe function parses the full document into `serde_json::Value` at `crates/o7-a1-contracts/src/json.rs` Line 221. It applies `MAX_ARRAY_LEN`, depth, and string limits only afterward through `walk()`.\n\n`T::CEILING_IS_PARSEABLE` does not run on this route. It runs only in `parse_artifact()` at Line 245. Therefore, the 64 MiB case is not a compile error for the public document API.\n\nA 64 MiB JSON object with an oversized array of small values can allocate the complete `Value` graph before `ArrayTooLong` is returned. The existing test at `crates/o7-a1-contracts/tests/fd1_wire_seed.rs` Lines 808–812 demonstrates this route with the evidence ceiling, but at a smaller input size.\n\nMake the caller-configurable `validate_document` crate-private, or replace it with a bounded streaming parser before exposing a public API that permits the 64 MiB ceiling.\n\n_{You are interacting with an AI system.}","@chatgpt-codex-connector Both P1s addressed in `74dd70f` — one fixed, one converted into a compile error. The first is the sharpest finding of the round, because the evidence for it was a test I wrote to prove the opposite.\n\n## The ceiling was caller-controlled\n\n`parse_artifact(bytes, max_bytes)` let the caller pick the bound. FD-1.4 calls these \"protocol hard maxima\"; this crate's own `bounds` module calls them \"a compile-time constant, never configurable\". A resolver passing the evidence maximum to a control artifact admitted an object 64× over its bound.\n\nYou cited `tests/fd1_wire_seed.rs:890-893` as the demonstration, and that is exactly right — those lines were mine, added three commits ago:\n\n```rust\n// And it is refused *before* the document is walked or any ref is built:\n// raising the bound past the document admits the very same bytes, so the\n// rejection above is the byte bound and nothing else.\nassert!(parse_artifact::(&bytes, MAX_EVIDENCE_BLOB_BYTES).is_ok());\n```\n\nI wrote that to isolate *which layer* rejected the 15 MB envelope. What it actually asserts is that a caller can choose to admit it. **Fourth time on this PR** that one of my own regression tests recorded a hole instead of closing it, and this one recorded it in the commit that fixed the previous instance of the same axis.\n\n`WireArtifact::MAX_BYTES` is now an associated const; `parse_artifact` takes bytes alone; `EnvelopeV1::MAX_BYTES` is the 1 MiB typed-object ceiling. There is no parameter left to widen.\n\n## The structural bounds — a compile error rather than a note\n\nYour second P1 is also correct: `validate_document` materializes the entire `serde_json::Value` before `walk` applies the depth, array-length and string-length bounds, so a document full of small elements is allocated before `ArrayTooLong` fires. That is the defect this crate already ruled on in `BoundedVec` — *a bound that allocates what it is about to reject is not a bound* — one layer up.\n\nThe scenario needs the 64 MiB ceiling, and after the fix above no such artifact type exists: `EnvelopeV1` is the only `WireArtifact` and FD-1.4 caps it at 1 MiB, where the overshoot is bounded and unremarkable. The bounded visitor belongs with the type that actually carries a 64 MiB ceiling — it does not exist yet, and building it now means building it against no consumer.\n\nDeferring that as a comment is the mistake this PR has made three times running, so it is enforced instead:\n\n```rust\nconst CEILING_IS_PARSEABLE: () = assert!(Self::MAX_BYTES <= MATERIALISING_PARSER_SAFE_MAX, ...);\n```\n\nevaluated inside `parse_artifact`. An artifact type whose ceiling exceeds what the current parser can safely materialize **fails to compile**. The document layer has to be replaced before `InteractionManifestV1` can be admitted, and nobody has to remember that.\n\nIf you think the 1 MiB case is itself exploitable — the amplification factor from 1 MiB of JSON to a `Value` graph — say so and I will treat it as unresolved rather than deferred.\n\nHead is `74dd70f`. 81 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@codex review\n\n@coderabbitai review\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Current revision and timestamp-policy diff =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 2abcc15\ngit diff --unified=100 2abcc15^ 2abcc15 -- \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/tests \\\n docs\n\nprintf '%s\\n' '== Timestamp parser and tests =='\nast-grep outline crates/o7-a1-contracts/src/scalars.rs --items all --view compact\nrg -n -C 16 --type rust \\\n '\\b(Timestamp|is_rfc3339_utc|days_in_month|is_leap_year|leap second|23:59:60|2026-08-09)\\b' \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Contract wording for timestamp semantics =='\nrg -n -i -C 10 \\\n 'FD-5\\.4|created_at|RFC 3339|timestamp|metadata|framing|authoriz|order' \\\n docs \\\n -g '*.md' || true\n```\n\nLength of output: 18981\n\n---\n\n

\n\n`@PhysShell` The P1 remains unresolved.\n\n`2026-08-09T23:59:60Z` does not satisfy RFC 3339. RFC 3339 permits `:60` only when a leap second occurs on that UTC date. The metadata role of `created_at` reduces impact, but it does not change the §3 requirement that the value is RFC 3339 UTC.\n\nYour policy avoids a mutable schedule and preserves real leap-second timestamps. It also deliberately accepts a value that a strict RFC 3339 peer can reject. The test at `2abcc15` records that interoperability choice.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T10:24:08.870Z\nLearning: In Rust crate `crates/o7-a1-contracts`, commit `2abcc15` deliberately accepts `Timestamp` values at `23:59:60` without validating the UTC leap-second date schedule. The implementation and tests explicitly accept `2026-08-09T23:59:60Z` to avoid embedding mutable IERS schedule data and to avoid rejecting valid future or historical leap-second timestamps. This is a maintainer-recorded policy decision; it can cause strict RFC 3339 peers to reject such timestamps.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `5e8d088e7c`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce structural bounds while parsing JSON**\n\nWhen an untrusted payload is allowed the 64 MiB manifest/evidence ceiling, this first materializes the complete `serde_json::Value` before `walk` checks the global 4,096-element and 65,536-byte string limits. For example, a near-64 MiB object containing an array of millions of small numbers allocates hundreds of megabytes of `Value` entries before returning `ArrayTooLong`, allowing a provider artifact to exhaust the harness despite violating a bound intended to reject it. Parse with a bounded visitor that stops at the structural limits rather than constructing the entire invalid document first; the authoritative B1 blob `3b26849cc39a3391aaed46cca56be3b6715afabb`, `docs/q-deck/a1-authority-contracts.md` FD-1.4, defines these global limits and parse-time rejection behavior.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/5e8d088e7c4440d354bb7ecb7ccdc7f24b4bbf81/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.","crates/o7-a1-contracts/src/json.rs",228,"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Bind the payload ceiling to the artifact type**\n\nAfter removing the unchecked `Deserialize` route, this remaining public admission route still makes a protocol hard maximum caller-controlled: `tests/fd1_wire_seed.rs:890-893` explicitly demonstrates that passing `MAX_EVIDENCE_BLOB_BYTES` makes the same 15 MiB `EnvelopeV1` parse successfully. The authoritative B1 blob `3b26849cc39a3391aaed46cca56be3b6715afabb`, `docs/q-deck/a1-authority-contracts.md` FD-1.4, fixes typed A1 JSON objects other than `InteractionManifestV1` at 1 MiB and describes these maxima as compile-time and non-configurable, so a generic resolver choosing the evidence ceiling can admit an oversized control artifact. Associate the hard ceiling with `T` or clamp the supplied operational limit to that type's protocol maximum.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/5e8d088e7c4440d354bb7ecb7ccdc7f24b4bbf81/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.",216,"@coderabbitai The observation is correct and I am **declining both remedies**, with the reasoning recorded in code at `2abcc15`. Per `.coderabbit.yaml` you are a permanent advisory reviewer, so this is a disagreement on the fix rather than on the finding.\n\n`2026-08-09T23:59:60Z` names no instant. Agreed. Now the two options you gave:\n\n**Validate against the leap-second schedule.** Leap seconds are announced by the IERS roughly six months ahead, so the table is *mutable external data*. A frozen contract implementation carrying it does not stay correct — it starts **rejecting valid future artifacts** the moment the table goes stale. That failure arrives silently, years later, in the admission path, and the artifact it refuses is genuinely conforming. Embedding a decaying table in the layer whose job is to be right about what is admissible is a worse defect than the one it fixes.\n\n**Refuse `:60` outright.** Then `2016-12-31T23:59:60Z` — a real instant, a valid RFC 3339 UTC timestamp, emitted by a conforming peer — becomes inadmissible. That is `RefError::ZeroSize` again, three commits after removing it: a bound the contract does not state, refusing what peers may legitimately send.\n\n**What I did instead.** Kept the behaviour and wrote down why, at the function and in the test suite. The residue is a small set of strings that are well-formed, in range, and at the only clock position a leap second can occupy, whose date happened not to have one. FD-5.4 makes `created_at` metadata: excluded from every framing, authorizing nothing, ordering nothing. Admitting one costs nothing this contract can express. Refusing a real one costs an artifact.\n\nThe asymmetry is the whole argument:\n\n| | effect |\n|---|---|\n| accept a non-instant in `created_at` | nothing, by FD-5.4 |\n| reject a real leap-second timestamp | a conforming artifact is inadmissible |\n\n`2026-08-09T23:59:60Z` is now **asserted as accepted** in the test suite rather than left implicit, so narrowing this later edits a recorded decision instead of silently tightening an admission rule.\n\nOne thing I want to be explicit about, because this PR has spent two rounds on exactly this axis: this is a judgement between two contract-consistent readings, not a derivation from the contract. §3 says \"RFC 3339 UTC\" and says nothing about schedules. I have made the call as implementer and written it down where it can be overruled — @PhysShell owns the contract, and if the stricter reading is wanted, it is a one-line change plus a test flip.\n\nHead is `2abcc15`. 81 tests, fmt, clippy clean.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision and focused diff =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 5e8d088\ngit diff --unified=120 5e8d088^ 5e8d088 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== relevant module maps =='\nfor f in \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== timestamp implementation and tests =='\nrg -n -C 18 --type rust \\\n '\\b(Timestamp|is_rfc3339_utc|days_in_month|is_leap_year|leap second|:60|created_at|Deserialize)\\b' \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== public construction and admission routes =='\nrg -n -C 8 --type rust \\\n '\\b(WireArtifact|FromDocument|from_document|parse_artifact|validate_document|Timestamp::(parse|new)|pub\\s+fn|pub\\s+use|Deserialize)\\b' \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== contract wording =='\nrg -n -i -C 8 'RFC 3339|timestamp|created_at|UTC|leap second|offset unknown' \\\n docs \\\n -g '*.md' || true\n```\n\nLength of output: 200237\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== 5e8d088 focused diff =='\ngit show --format=fuller --unified=80 5e8d088 -- \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs\n\nprintf '%s\\n' '== Timestamp implementation =='\nrg -n -A140 -B25 --type rust \\\n 'fn is_rfc3339_utc|fn days_in_month|fn is_leap_year|impl Timestamp|impl.*Deserialize.*Timestamp' \\\n crates/o7-a1-contracts/src/scalars.rs\n\nprintf '%s\\n' '== Timestamp call sites and tests =='\nrg -n -C 10 --type rust \\\n 'Timestamp::(parse|new)|is_rfc3339_utc|23:59:60|20:00:60|23:58:60|22:59:60|:60' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== sealed trait visibility and constructor implementations =='\nrg -n -C 10 --type rust \\\n 'mod sealed|trait FromDocument|pub\$crate\$ use sealed::FromDocument|pub trait WireArtifact|impl.*FromDocument.*for|fn from_document' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== public Timestamp API =='\nrg -n -C 6 --type rust \\\n 'pub (struct|fn|type|use).*Timestamp|pub fn (parse|new).*Timestamp|impl From.*Timestamp|impl TryFrom.*Timestamp' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 53645\n\n---\n\n

\n\n`@PhysShell` P1 — `Timestamp` still accepts a leap second on a date with no leap second.\n\n`is_rfc3339_utc()` in `crates/o7-a1-contracts/src/scalars.rs` accepts every `23:59:60` value. The new regression also marks this value valid:\n\n```rust\nTimestamp::parse(\"2026-08-09T23:59:60Z\")\n```\n\nA leap second requires both the `23:59:60` clock position and a date in the UTC leap-second schedule. `2026-08-09` has no leap second. The value does not name a UTC instant.\n\nReject `second == 60` unless its date is an announced leap-second date, or reject leap seconds entirely if the frozen contract does not provide the schedule needed to validate them. Add a regression for `2026-08-09T23:59:60Z`.\n\n\n\n_{You are interacting with an AI system.}","@coderabbitai P1 confirmed and fixed in `5e8d088`. Also noting your verdict on the seal — that downstream crates can neither implement `WireArtifact` nor call `from_document` — which was the question I asked and could not answer from inside the crate.\n\n**The leap second.** `2026-08-09T20:00:60Z` parsed. I read\n\n```abnf\ntime-second = 2DIGIT ; 00-58, 00-59, 00-60 based on leap second rules\n```\n\nand stopped at `00-60`, before the clause that qualifies it. A leap second occurs at `23:59:60` UTC; since the only offsets this accepts are zero, that is the sole position where `60` names an instant.\n\nWhat makes this one worth more than its size: the commit that introduced it argued *explicitly* that refusing `:60` would be inventing a bound — the `ZeroSize` mistake, freshly learned. That argument was right about the value and wrong about its scope, and permitting it at every minute is the same defect mirrored. I over-corrected from \"too strict\" straight past \"correct\" into \"too permissive\", one commit later, while quoting the lesson.\n\nBoth directions have now cost a round on this PR:\n\n| direction | instance | what it does |\n|---|---|---|\n| too strict | `RefError::ZeroSize` | rejects an artifact the contract permits |\n| too permissive | `second <= 60` anywhere | accepts one the contract forbids |\n\nNeither is safe, and \"be less strict\" is not the lesson from the first.\n\nFixed: `second == 60` now requires `hour == 23 && minute == 59`. Regressions cover the valid position plus three invalid ones differing from it by exactly one field (`20:00:60`, `23:58:60`, `22:59:60`), so relaxing any single component fails a test.\n\nHead is `5e8d088`. 81 tests, fmt, clippy clean. Not merging.\n\n@coderabbitai review\n\n@codex review\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 076bab4\ngit diff --unified=100 076bab4^ 076bab4 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== module outlines =='\nfor f in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs; do\n printf '\\n--- %s ---\\n' \"$f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== public API and sealed-construction routes =='\nrg -n -C 8 --type rust \\\n '\\b(sealed|FromDocument|WireArtifact|from_document|parse_artifact|validate_document|EnvelopeV1|ArtifactRef|Deserialize|From<|TryFrom<|pub\$crate\$|pub\\s+use|pub\\s+trait|pub\\s+fn)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== timestamp parsing and coverage =='\nrg -n -C 14 --type rust \\\n '\\b(Timestamp|is_rfc3339_utc|days_in_month|leap|RFC ?3339|created_at|-00:00|\\+00:00|:60)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== frozen timestamp wording =='\nrg -n -i -C 8 'RFC 3339|created_at|timestamp|UTC|leap second|offset unknown' \\\n docs -g '*.md' || true\n```\n\nLength of output: 200258\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== exact sealed admission API =='\nrg -n --type rust \\\n 'mod sealed|trait FromDocument|use sealed::FromDocument|trait WireArtifact|fn parse_artifact|fn from_document' \\\n crates/o7-a1-contracts/src\n\nprintf '%s\\n' '== exact source around admission definitions =='\nfor f in crates/o7-a1-contracts/src/json.rs crates/o7-a1-contracts/src/lib.rs; do\n echo \"--- $f\"\n nl -ba \"$f\" | sed -n '1,210p'\ndone\n\nprintf '%s\\n' '== FromDocument implementations and all uses =='\nrg -n -C 5 --type rust \\\n 'impl\\s+(?:sealed::)?FromDocument\\s+for|FromDocument|from_document\\s*\\(' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== exact timestamp parser =='\nrg -n --type rust \\\n 'fn is_rfc3339_utc|fn days_in_month|fn is_leap_year|impl Timestamp' \\\n crates/o7-a1-contracts/src/scalars.rs\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '185,330p'\n\nprintf '%s\\n' '== Timestamp public constructors and deserialization =='\nrg -n -C 5 --type rust \\\n 'Timestamp::(parse|new)|impl.*Deserialize.*Timestamp|impl.*From.*Timestamp|pub\\s+fn.*Timestamp' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 2417\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nshow_range() {\n local file=\"$1\" start=\"$2\" end=\"$3\"\n printf '%s\\n' \"--- $file:$start-$end ---\"\n awk -v start=\"$start\" -v end=\"$end\" \\\n 'NR >= start && NR <= end { printf \"%6d\\t%s\\n\", NR, $0 }' \"$file\"\n}\n\nprintf '%s\\n' '== sealed admission definitions and public exports =='\nshow_range crates/o7-a1-contracts/src/json.rs 95 205\nshow_range crates/o7-a1-contracts/src/lib.rs 1 130\n\nprintf '%s\\n' '== FromDocument implementations and uses =='\nrg -n -C 6 --type rust \\\n 'impl\\s+(?:sealed::)?FromDocument\\s+for|FromDocument|from_document\\s*\\(' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== timestamp parser =='\nshow_range crates/o7-a1-contracts/src/scalars.rs 185 325\n\nprintf '%s\\n' '== public timestamp construction and deserialization paths =='\nrg -n -C 6 --type rust \\\n 'Timestamp::(parse|new)|impl.*Deserialize.*Timestamp|impl.*From.*Timestamp|pub\\s+fn.*Timestamp' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n```\n\nLength of output: 31560\n\n---\n\n

\n\n`@PhysShell` P1 — `Timestamp` accepts a leap second in an invalid position.\n\n`is_rfc3339_utc()` accepts any `second <= 60` at `crates/o7-a1-contracts/src/scalars.rs` Line 289. Therefore:\n\n```rust\nTimestamp::parse(\"2026-08-09T20:00:60Z\")\n```\n\nreturns `Ok`.\n\nRFC 3339 permits `:60` only for a leap second at the end of a UTC day. It is not valid at `20:00`. The contract requires an RFC 3339 UTC timestamp, so a conforming peer can reject an artifact that this crate accepts.\n\nRequire `second == 60` only when `hour == 23 && minute == 59`. Add a regression case for `2026-08-09T20:00:60Z`.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T10:20:02.723Z\nLearning: In the Rust crate `crates/o7-a1-contracts`, wire artifact construction must remain reachable to downstream users only through `parse_artifact`. The internal `sealed::FromDocument` trait is in a private module and re-exported only as `pub(crate)`, so downstream crates cannot implement `WireArtifact` or invoke `from_document`.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision and focused diff =='\ngit rev-parse HEAD\ngit show --stat --oneline 1150360\ngit diff --unified=100 1150360^ 1150360 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== module outlines =='\nfor f in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== public parsing and construction surfaces =='\nrg -n -C 8 --type rust \\\n '\\b(WireArtifact|from_document|parse_artifact|validate_document|EnvelopeV1|ArtifactRef|ArtifactRefWire|EnvelopeWireV1|Deserialize|From<|TryFrom<|pub\$crate\$|pub\\s+use|pub\\s+fn)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== exact changed implementations =='\nsed -n '1,260p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,360p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,320p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,360p' crates/o7-a1-contracts/src/scalars.rs\n\nprintf '%s\\n' '== timestamp and zero-size coverage =='\nrg -n -C 10 --type rust \\\n '\\b(Timestamp|is_rfc3339_utc|RFC ?3339|created_at|-00:00|\\+00:00|ZeroSize|size\\s*==\\s*0|size:\\s*0)\\b' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== authority timestamp clause =='\nrg -n -i -C 8 'RFC 3339|created_at|timestamp|UTC' docs -g '*.md' || true\n```\n\nLength of output: 200456\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== json admission API =='\nnl -ba crates/o7-a1-contracts/src/json.rs | sed -n '1,210p'\n\nprintf '%s\\n' '== envelope wire conversion =='\nnl -ba crates/o7-a1-contracts/src/envelope.rs | sed -n '1,360p'\n\nprintf '%s\\n' '== artifact reference wire conversion =='\nnl -ba crates/o7-a1-contracts/src/refs.rs | sed -n '1,280p'\n\nprintf '%s\\n' '== timestamp implementation =='\nrg -n -C 18 --type rust \\\n 'fn is_rfc3339_utc|impl Timestamp|Timestamp::parse|Deserialize.*Timestamp' \\\n crates/o7-a1-contracts/src/scalars.rs\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '180,330p'\n\nprintf '%s\\n' '== crate exports and external trait calls =='\nnl -ba crates/o7-a1-contracts/src/lib.rs | sed -n '1,180p'\nrg -n -C 5 --type rust \\\n '<\\s*(EnvelopeV1|ArtifactRef)\\s+as\\s+WireArtifact\\s*>\\s*::from_document|\\.from_document\\s*\\(|WireArtifact::from_document|parse_artifact\\s*::?\\s*<' \\\n . -g '!target/**'\n\nprintf '%s\\n' '== regression coverage =='\nrg -n -C 8 --type rust \\\n 'from_document|parse_artifact|invalid.*(month|day|hour|minute|second)|99:|02-31|-00:00|\\+00:00' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src -g '!target/**'\n```\n\nLength of output: 1549\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nnumbered() {\n awk -v start=\"$2\" -v end=\"$3\" \\\n 'NR >= start && NR <= end { printf \"%6d\\t%s\\n\", NR, $0 }' \"$1\"\n}\n\nprintf '%s\\n' '== json admission API =='\nnumbered crates/o7-a1-contracts/src/json.rs 1 210\n\nprintf '%s\\n' '== envelope wire conversion =='\nnumbered crates/o7-a1-contracts/src/envelope.rs 1 360\n\nprintf '%s\\n' '== artifact reference wire conversion =='\nnumbered crates/o7-a1-contracts/src/refs.rs 1 280\n\nprintf '%s\\n' '== timestamp implementation =='\nrg -n -C 18 --type rust \\\n 'fn is_rfc3339_utc|impl Timestamp|Timestamp::parse|Deserialize.*Timestamp' \\\n crates/o7-a1-contracts/src/scalars.rs\nnumbered crates/o7-a1-contracts/src/scalars.rs 180 330\n\nprintf '%s\\n' '== crate exports and external trait calls =='\nnumbered crates/o7-a1-contracts/src/lib.rs 1 180\nrg -n -C 5 --type rust \\\n '<\\s*(EnvelopeV1|ArtifactRef)\\s+as\\s+WireArtifact\\s*>\\s*::from_document|\\.from_document\\s*\\(|WireArtifact::from_document|parse_artifact\\s*::?\\s*<' \\\n . -g '!target/**'\n\nprintf '%s\\n' '== regression coverage =='\nrg -n -C 8 --type rust \\\n 'from_document|parse_artifact|invalid.*(month|day|hour|minute|second)|99:|02-31|-00:00|\\+00:00' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src -g '!target/**'\n```\n\nLength of output: 156487\n\n---\n\n

\n\n`@PhysShell`\n\n1. **P1 — `WireArtifact::from_document` is a public unchecked admission route.**\n\n `WireArtifact::from_document` is public. `#[doc(hidden)]` does not restrict calls. An external caller can supply a `serde_json::Value` directly:\n\n ```rust\n ::from_document(value)\n ```\n\n This bypasses `validate_document()` and `validate_wire()`. It can construct a provider envelope without `provider_execution_receipt_ref`. It can also bypass the byte, depth, array, string, and null rules.\n\n Make `from_document` inaccessible outside the crate. Keep `parse_artifact` as the only public bytes-to-artifact route.\n\n2. **P1 — `Timestamp::is_rfc3339_utc` accepts calendar-invalid values.**\n\n The timestamp check validates digit positions and the zero-offset suffix. It accepts inputs such as:\n\n ```text\n 2026-99-99T99:99:99Z\n 2026-02-31T23:00:00Z\n ```\n\n These are not RFC 3339 UTC instants. The contract requires `Timestamp` to be RFC 3339 UTC.\n\n Validate month, day, leap-year, hour, minute, and second ranges. Add regression cases for each invalid component.\n\n_{You are interacting with an AI system.}","@coderabbitai Both confirmed, and both were already closed in `076bab4` — your pass and @chatgpt-codex-connector's landed on **the same two defects, independently**, which is worth more than either finding alone. Two reviewers with different methods converging on the same pair says these were the real remaining holes in `1150360`, not artifacts of one reviewer's heuristics.\n\n**1. `from_document` was a public unchecked route.** Correct, and this is the same defect for the third time on this PR:\n\n| round | the escape hatch | the note on it |\n|---|---|---|\n| 2 | public `parse_payload` | \"prefer `parse_artifact`\" |\n| 7 | public `Deserialize` | \"the per-field rules still hold\" |\n| 8 | `#[doc(hidden)] fn from_document` | \"hidden from the API\" |\n\nEach time I closed the route by removing it, and then built the next one out of something weaker. `#[doc(hidden)]` suppresses rustdoc output and affects nothing else — it is a convention with better formatting. `from_document` now lives on `sealed::FromDocument` in a private module, so downstream crates can neither implement `WireArtifact` nor call the constructor.\n\n**2. `is_rfc3339_utc` was a shape check, not a range check.** Also correct. Both of you produced the same witness — `2026-99-99T99:99:99Z` — and yours adds `2026-02-31`. One commit earlier I replaced a length-only check with a digit-position check and called the rule satisfied; I had fixed \"is it shaped like a timestamp\" and left \"is it a timestamp\". Components are now range-checked with a proleptic-Gregorian `days_in_month`, so `2026-02-29` is refused and `2024-02-29` is not.\n\nSecond `60` stays admissible on purpose: RFC 3339 permits the leap second, and refusing it would be this crate inventing a bound — the exact mistake removed one commit earlier with `RefError::ZeroSize`. `-00:00` is refused because RFC 3339 assigns it the meaning \"offset unknown\", which is a different claim from UTC.\n\nHead is `076bab4`. 81 tests, fmt, clippy clean workspace-wide. Not merging.\n\n@coderabbitai review\n\n@codex review\n\nRe-review on `076bab4`, since neither of you has seen the seal. The specific thing worth attacking: `pub(crate) use sealed::FromDocument` re-exports the trait *within* the crate — does that, or anything else, make the unchecked constructor reachable from outside? And is `days_in_month` right at the boundaries, or is refusing something a conforming peer emits the next `ZeroSize`?\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 1150360\ngit diff --unified=100 1150360^ 1150360 -- \\\n crates/o7-a1-contracts \\\n docs \\\n TODO.md\n\nprintf '%s\\n' '== Focused module outlines =='\nfor f in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/bounds.rs \\\n crates/o7-a1-contracts/src/kind.rs; do\n if [ -f \"$f\" ]; then\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\n fi\ndone\n\nprintf '%s\\n' '== Admission routes, implementations, and exports =='\nrg -n -C 8 --type rust \\\n '\\b(WireArtifact|from_document|parse_artifact|validate_document|EnvelopeV1|ArtifactRef|ArtifactRefWire|EnvelopeWireV1|Deserialize|From<|TryFrom<|pub\$crate\$|pub\\s+use|pub\\s+fn)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Reference size validation and zero-size uses =='\nrg -n -C 8 --type rust \\\n '\\b(ZeroSize|size\\s*==\\s*0|size:\\s*0|\\.size\\b|ref_size|MAX_.*BYTES|ArtifactRef)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Timestamp implementation and tests =='\nrg -n -C 10 --type rust \\\n '\\b(Timestamp|is_rfc3339_utc|RFC ?3339|rfc3339|created_at|-00:00|\\+00:00)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests docs \\\n -g '*.rs' -g '*.md'\n\nprintf '%s\\n' '== Frozen-authority candidates and scalar clauses =='\nfd -a -t f '.*a1.*\\.(md|txt)$|.*contract.*\\.(md|txt)$' docs | sort\nrg -n -i -C 10 \\\n 'RFC 3339|timestamp|created_at|UTC|offset unknown|FD-1\\.8|stored size|size' \\\n docs \\\n -g '*.md' || true\n```\n\nLength of output: 201452\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Public crate surface =='\nsed -n '1,220p' crates/o7-a1-contracts/src/lib.rs\nprintf '%s\\n' '== JSON admission API =='\nsed -n '1,260p' crates/o7-a1-contracts/src/json.rs\nprintf '%s\\n' '== Envelope construction and wire conversion =='\nsed -n '1,300p' crates/o7-a1-contracts/src/envelope.rs\nprintf '%s\\n' '== Artifact reference construction and wire conversion =='\nsed -n '1,300p' crates/o7-a1-contracts/src/refs.rs\nprintf '%s\\n' '== Timestamp parser and scalar constructors =='\nsed -n '1,340p' crates/o7-a1-contracts/src/scalars.rs\n\nprintf '%s\\n' '== External-facing construction and conversion search =='\nrg -n -C 4 --type rust \\\n '(pub\\s+trait\\s+WireArtifact|fn\\s+from_document|impl\\s+WireArtifact|impl\\s+From<.*ArtifactRefWire|impl\\s+From<.*EnvelopeWireV1|pub\$crate\$\\s+struct\\s+ArtifactRefWire|pub\\s+struct\\s+ArtifactRef|pub\\s+struct\\s+EnvelopeV1|ArtifactRefWire\\s*\\{|EnvelopeWireV1\\s*\\{|ArtifactRef\\s*\\{|EnvelopeV1\\s*\\{)' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== Timestamp exact tests and authority text =='\nrg -n -C 12 --type rust \\\n '(is_rfc3339_utc|Timestamp::parse|Timestamp::new|timestamp.*(accept|reject)|-00:00|\\+00:00|\\\"z\\\"|\\\"Z\\\")' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\nsed -n '1180,1200p' docs/q-deck/a1-authority-contracts.md\n```\n\nLength of output: 89695\n\n---\n\n

\n\n`@PhysShell`\n\n1. **P1 — `WireArtifact::from_document` is a public unchecked admission route.**\n\n `WireArtifact::from_document` is public in `crates/o7-a1-contracts/src/json.rs` Line 118. `EnvelopeV1` implements it in `crates/o7-a1-contracts/src/envelope.rs` Line 302. The implementation deserializes `EnvelopeWireV1` and converts it, but it does not call `validate_wire()`.\n\n An external caller can bypass both admission layers:\n\n ```rust\n use o7_a1_contracts::{EnvelopeV1, WireArtifact};\n\n let value = serde_json::json!({\n // valid field representations, but:\n \"producer_role\": \"coder\"\n // provider fields and provider_execution_receipt_ref omitted\n });\n\n let envelope = ::from_document(value)?;\n ```\n\n This constructs a coder `EnvelopeV1` without the provider-required fields. It also skips `validate_document`, so a caller can supply a `serde_json::Value` that did not pass the null, depth, array, or string limits.\n\n `#[doc(hidden)]` does not restrict the call. Make `from_document` crate-private, or replace the public trait method with a sealed internal conversion mechanism. The public API must expose only `parse_artifact`.\n\n2. **P1 — `Timestamp::is_rfc3339_utc` accepts invalid RFC 3339 date-times.**\n\n `is_rfc3339_utc` in `crates/o7-a1-contracts/src/scalars.rs` Line 250 checks only digit positions and a zero-offset suffix. It accepts invalid clock and calendar fields:\n\n ```rust\n Timestamp::parse(\"2026-99-99T99:99:99Z\") // returns Ok(...)\n Timestamp::parse(\"2026-02-31T23:00:00Z\") // returns Ok(...)\n ```\n\n These strings are not RFC 3339 timestamps. The frozen contract requires `Timestamp` to be `RFC 3339 UTC` in `docs/q-deck/a1-authority-contracts.md` Line 1194. A peer that validates RFC 3339 semantics will reject artifacts that this crate accepts.\n\n Validate RFC 3339 date and time ranges without converting the value into an ordering primitive. Add regression cases for invalid month, day, hour, minute, and second values.\n\n_{You are interacting with an AI system.}","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Validate timestamp component ranges**\n\nThis matcher constrains timestamp components only to ASCII digits, so `Timestamp::parse(\"2026-99-99T99:99:99Z\")` returns `Ok` even though the month, day, hour, minute, and second do not describe an RFC 3339 instant. The authoritative B1 blob `3b26849cc39a3391aaed46cca56be3b6715afabb` defines `Timestamp` as RFC 3339 UTC at `docs/q-deck/a1-authority-contracts.md:1190-1194`; admitting impossible dates therefore produces artifacts that conforming peers can reject. Validate the calendar and time ranges in addition to the byte shape.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/11503606a4f7b835355f1ece9df45d9baf9be8a3/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.",345,"\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `11503606a4`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Make the unchecked wire constructor inaccessible**\n\nFresh evidence after removing `Deserialize` is that downstream crates can still call `::from_document(value)` because `#[doc(hidden)]` affects documentation, not visibility. For example, this returns an envelope for a `coder` with all provider-only fields absent because the implementation only deserializes and never calls `validate_wire`; it also necessarily skips `validate_document`. This contradicts the provider-field requirements in the authoritative B1 blob `3b26849cc39a3391aaed46cca56be3b6715afabb` (`docs/q-deck/a1-authority-contracts.md:1217-1226`) and leaves `parse_artifact` as only the conventional, rather than actual, admission route.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/11503606a4f7b835355f1ece9df45d9baf9be8a3/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.","@coderabbitai review\n\n@codex review\n\nRe-review on `1150360`. This is not a touch-up: a public API surface was **removed** (`EnvelopeV1` and `ArtifactRef` no longer implement `Deserialize`), and two admission rules changed (zero-size refs now admissible, `Timestamp` now shape-checked). Neither reviewer has seen this shape, and on this PR the defect has been inside the fix in six rounds out of seven.\n\nThe three things most worth attacking:\n\n1. **Is `parse_artifact` genuinely the only route now?** `WireArtifact::from_document` is `#[doc(hidden)]` but public by necessity. Is there a way to reach an `EnvelopeV1` — or an `ArtifactRef` inside one — that skips `validate_document`, `validate_wire`, or both? `ArtifactRefWire` is `pub(crate)`; `From for ArtifactRef` is not gated on validation, so if that wire type ever escapes the crate the conversion is an unchecked constructor.\n2. **Did removing `ZeroSize` weaken anything that depended on it?** A ref with `size == 0` now validates. Closure accounting (FD-1.5) is step 2 and charges `size` per object — a zero-cost object is not a problem there, but I would like that checked rather than assumed.\n3. **Is `is_rfc3339_utc` right, and right for the *contract*?** It accepts `Z`, `z`, `+00:00` and a fractional part; it refuses `-00:00` on the grounds that RFC 3339 assigns it the meaning \"offset unknown\". Rejecting a form real peers emit would be the same defect as `ZeroSize`, one round later.\n\nRounds 1–5 (framing, parse ordering, closed enums, the `BoundedVec` cap) are unchanged since `3a1508b` except where the tests had to move onto the single remaining route.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Ready-pass round fixed in `1150360`. Four findings, all four confirmed, and two of them turned out to be **the same door seen from opposite sides** — which is the most useful thing this round produced.\n\n## @coderabbitai P1 and @chatgpt-codex-connector P0 are one defect\n\nFive rounds established the rule \"every per-field rule lives in the field's own type\", and it worked: no route could build an `EnvelopeV1` violating a per-field rule. What I did not notice is that this closes exactly **one** axis, and the public `Deserialize` was open on two others.\n\n**The byte bound (CodeRabbit).** `max_bytes` is a property of the byte string. No field of the value can know it, so no amount of field-level rigour reaches it. Reproduced before touching anything, with an envelope that is individually flawless — exactly 256 refs, the FD-1.4 limit; every ref valid; every `media_type` under the 64 KB string bound; cross-field rules satisfied:\n\n```text\ndocument is 15394410 bytes; control bound is 1048576\ndirect deserialization returned ok = true\n```\n\n15,394,410 bytes admitted against a 1 MiB ceiling. Every individual rule passed, because every individual rule was the wrong question.\n\n**The reject path (Codex).** That same route returns `serde_json`'s own error, and its `Display` quotes the unknown field name and the unrecognised enum value verbatim. A credential arriving as either lands in an error string — AGENTS.md P0. `parse_artifact` never had this problem; it reports the serde *category* via `classify` and drops the text. The bypass door had no such manners.\n\n**Fix:** `EnvelopeV1` and `ArtifactRef` no longer implement `Deserialize`. `WireArtifact` gains `from_document`, implemented against each type's private wire mirror, and `parse_artifact` is the only route from bytes to a wire artifact.\n\n```rust\nserde_json::from_slice::(&bytes) // no longer compiles\n```\n\nWorth saying plainly: several tests that existed to prove the second door was safe were **deleted rather than strengthened**, because a rule enforced by the absence of an API needs no test to keep it true. `no_deserialization_route_admits_...` checked three serde entry points; there is now one route, so it checks one rule.\n\nThe generalisation I should have had five rounds ago: *\"the rule lives in the type\" only covers rules a value can inspect.* The byte bound and the reject-path error format are properties of the **encounter with the bytes**, not of the value — those need a boundary, and a boundary only works if it is the only way in.\n\n## @chatgpt-codex-connector P1 ×2 — two rules I invented\n\nDifferent species, and in some ways more embarrassing, because this crate exists specifically to not do this.\n\n**`RefError::ZeroSize`.** I rejected any ref with `size == 0`. FD-1.8 says `size` is \"that object's own stored size\" and states no minimum. An empty diff, an empty gate log, a provider that wrote nothing — each is a real CAS object with a perfectly good digest (`e3b0c442…`). So the check made a *conforming peer's artifact inadmissible* on a bound the contract does not contain. That is the failure mode this crate is built to prevent, pointed backwards: I have spent six rounds ensuring nothing gets in that the contract forbids, and shipped a rule keeping out something it permits. Removed.\n\n**`Timestamp::parse` checked only length.** §3's scalar table says \"RFC 3339 UTC\"; `created_at: \"not-a-time\"` was admitted. Peers must reject what we accepted, so it is an interoperability defect rather than laxity. Now shape-checked — and still *not* parsed into a calendar type, because FD-5.4 makes it metadata and a rich type invites exactly the ordering reasoning that rule forbids. `-00:00` is refused: RFC 3339 gives it the meaning \"offset unknown\", which is not the claim \"UTC\".\n\n## State\n\n`1150360` · 81 tests (47 unit + 34 integration) · `cargo fmt --check`, `cargo clippy --all-targets` clean workspace-wide.\n\nNot merging. The head has changed materially — a public API surface removed and two admission rules altered — so the previous green does not carry over, and neither does any earlier verdict. Waiting on CI and on both reviewers against `1150360`.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `219367d7c2`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Permit references to zero-byte CAS objects**\n\nA legitimate empty diff, gate log, or raw-provider artifact has a content digest and stored size `0`, but this branch rejects its reference unconditionally. The authoritative B1 contract (`3b26849cc39a3391aaed46cca56be3b6715afabb`, `docs/q-deck/a1-authority-contracts.md:395-412`) defines `size` as the object's own stored size and specifies no positive lower bound, so this prevents valid empty CAS artifacts from participating in A1.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/219367d7c21c1f4f7968f3594757c1af18920c37/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.","crates/o7-a1-contracts/src/refs.rs","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Validate the RFC 3339 UTC timestamp form**\n\nFor example, `created_at: \"not-a-time\"` passes both `Timestamp::deserialize` and envelope admission because this parser checks only length. The authoritative B1 contract (`3b26849cc39a3391aaed46cca56be3b6715afabb`, `docs/q-deck/a1-authority-contracts.md:1185-1194`) defines `Timestamp` as RFC 3339 UTC, so this accepts wire artifacts that conforming peers must reject.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/219367d7c21c1f4f7968f3594757c1af18920c37/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.","**_{_{![P0 Badge](https://img.shields.io/badge/P0-red?style=flat)}} Redact schema values from direct deserialization errors**\n\nWhen an untrusted envelope uses a credential as an unknown field name or enum value, the public `serde_json::from_slice::` path returns the error produced by this derived deserializer, whose `Display` includes that input value; logging the error therefore leaks the credential. `WireDigest` redacts malformed digests, but the remaining derived schema errors need equivalent redaction on this advertised direct-deserialization path.\n\nAGENTS.md reference: [AGENTS.md:L44-L48](https://github.com/PhysShell/007/blob/219367d7c21c1f4f7968f3594757c1af18920c37/AGENTS.md#L44-L48)\n\nUseful? React with 👍 / 👎.",95,"\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and delta =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 219367d\ngit diff --unified=100 219367d^ 219367d -- \\\n crates/o7-a1-contracts \\\n docs/tasks/a1-v0.md \\\n TODO.md\n\nprintf '%s\\n' '== Focused module maps =='\nfor f in \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/kind.rs \\\n crates/o7-a1-contracts/src/bounds.rs; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== Public parsing, serde implementations, and validation routes =='\nrg -n -C 8 --type rust \\\n '\\b(parse_artifact|parse_typed|validate_document|WireArtifact|EnvelopeV1|ArtifactRef|Deserialize|deserialize|from_(str|slice|value)|validate_wire|validate\\s*\\()' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Kind classification and size/media-type enforcement =='\nrg -n -C 10 --type rust \\\n '\\b(ArtifactKindV1|is_typed_artifact|has_control_size_bound|is_envelope_bearing|is_typed_payload|max_size|typed_media_type|InteractionManifest|MAX_CONTROL_ARTIFACT_BYTES|MAX_EVIDENCE_BLOB_BYTES)\\b' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Untrusted-input error construction =='\nrg -n -C 8 --type rust \\\n '#\\[error\\(|ParseError|ScalarError|RefError|EnvelopeError|Error::custom|map_err|format!|to_string\\(|Display|DigestFormatError' \\\n crates/o7-a1-contracts/src crates/o7-run/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Authority and B1 references =='\nrg -n -i -C 6 \\\n '3b26849|1a073975|7db92f1|9d26ee3f|FD-1\\.4|InteractionManifest|typed A1 JSON object|evidence blob|control artifact' \\\n docs TODO.md crates/o7-a1-contracts \\\n -g '*.md' -g '*.rs' || true\n\nprintf '%s\\n' '== Contract candidates =='\nfd -a -t f 'a1.*(authority|contract).*\\.md|.*a1.*\\.md' docs | sort\n```\n\nLength of output: 196521\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Exact direct-deserialization path =='\nnl -ba crates/o7-a1-contracts/src/envelope.rs | sed -n '70,175p'\nnl -ba crates/o7-a1-contracts/src/json.rs | sed -n '99,170p'\nnl -ba crates/o7-a1-contracts/src/refs.rs | sed -n '60,145p'\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '421,490p'\nnl -ba crates/o7-a1-contracts/src/bounds.rs | sed -n '15,50p'\n\nprintf '%s\\n' '== Envelope JSON fields and direct-serde coverage =='\nrg -n -C 8 --type rust \\\n 'from_(str|slice|value)\\s*::?\\s*<\\s*(EnvelopeV1|ArtifactRef)|MAX_CONTROL_ARTIFACT_BYTES|PayloadTooLarge|direct.*deserial|deserialize.*bound' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Complete predicate implementations =='\nnl -ba crates/o7-a1-contracts/src/kind.rs | sed -n '260,330p'\nnl -ba crates/o7-a1-contracts/src/refs.rs | sed -n '140,190p'\nnl -ba crates/o7-a1-contracts/src/bounds.rs | sed -n '40,62p'\n```\n\nLength of output: 1348\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nnumbered() {\n awk -v start=\"$2\" -v end=\"$3\" 'NR >= start && NR <= end { printf \"%6d\\t%s\\n\", NR, $0 }' \"$1\"\n}\n\nprintf '%s\\n' '== Exact direct-deserialization path =='\nnumbered crates/o7-a1-contracts/src/envelope.rs 70 175\nnumbered crates/o7-a1-contracts/src/json.rs 99 170\nnumbered crates/o7-a1-contracts/src/refs.rs 60 145\nnumbered crates/o7-a1-contracts/src/scalars.rs 421 490\nnumbered crates/o7-a1-contracts/src/bounds.rs 15 50\n\nprintf '%s\\n' '== Envelope JSON fields and direct-serde coverage =='\nrg -n -C 8 --type rust \\\n 'from_(str|slice|value)\\s*::?\\s*<\\s*(EnvelopeV1|ArtifactRef)|MAX_CONTROL_ARTIFACT_BYTES|PayloadTooLarge|direct.*deserial|deserialize.*bound' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Complete predicate implementations =='\nnumbered crates/o7-a1-contracts/src/kind.rs 260 330\nnumbered crates/o7-a1-contracts/src/refs.rs 140 190\nnumbered crates/o7-a1-contracts/src/bounds.rs 40 62\n```\n\nLength of output: 90971\n\n---\n\n

\n\n`@PhysShell` P1 — Public direct deserialization bypasses the document byte bound.\n\n`EnvelopeV1::deserialize()` in `crates/o7-a1-contracts/src/envelope.rs` Line 150 validates field and cross-field rules. It does not call `validate_document()`. `validate_document()` is the only path that applies the caller-supplied `max_bytes` limit in `crates/o7-a1-contracts/src/json.rs` Line 108.\n\nA caller can construct a valid envelope with 256 `diff` references. Each reference can use a valid, distinct `media_type` string of up to 65,536 bytes. The resulting JSON is larger than `MAX_CONTROL_ARTIFACT_BYTES` (1 MiB), but each field-level rule, the reference-count limit, and `EnvelopeV1::validate()` pass:\n\n```rust\nserde_json::from_slice::(&oversized_valid_envelope)\n```\n\nThis returns `Ok(EnvelopeV1)` without enforcing the typed-object byte limit. The route also allocates the oversized document before rejection is possible.\n\nEither prevent direct deserialization of public wire artifacts, or define an admission API that owns the byte limit and make callers use it. Add a regression test that direct deserialization rejects an otherwise valid envelope larger than 1 MiB.\n\n

✅ Action performed

\n\nSummary regeneration triggered.\n\n

","@coderabbitai review\n\nFinal full pass, on `219367d`, now that the PR is out of draft and carries `review-ready`.\n\nExplicit trigger rather than waiting: the label cleared the label gate, but the next status reported *\"Auto incremental reviews are disabled on this repository\"* — `.coderabbit.yaml` turns incremental re-review off by design and asks for follow-up rounds to be requested by hand. Waiting would have looked like waiting for a result that was never going to arrive.\n\nNote the walkthrough currently rendered above is stale — it was generated at `b2ba165` and still says 57 tests and blob `7db92f1`. Both moved: **79 tests**, and the authority is now blob **`3b26849`** (post-S1). This pass should regenerate it.\n\n## What changed since your last full review\n\nRounds 1–5 are settled at `3a1508b`; the two most useful things you found there — the public unchecked parse route and `BoundedVec` materialising the element past the cap — are closed and carry regression tests. Since then:\n\n- **S1** (PR #126, merged `288cf84`) resolved FD-1.4's double classification of `InteractionManifestV1` through the contract's own §7 supersede path: 64 MiB, still a typed A1 object for FD-1.7 and FD-2. The code already behaved that way; what changed is that it no longer *documents a reading*.\n- `55b0c54`, `bbd8bcf`, `219367d` rebind authority `B0 → B1` and remove three sites that still stated the pre-S1 rule — including one you'd want to know about: `max_size`'s doc opened by quoting `\"control artifact payload (any typed A1 payload)\"` as FD-1.4's text. That phrase occurs **zero times** in the governing blob.\n\n## Where an adversarial pass is most likely to pay\n\n1. **Ordering.** Is there any route by which a document reaches a typed schema without `validate_document`'s single pass (nulls, depth, array length, string length, byte bound)? Five rounds went into making every per-field rule live in the field's own type precisely because `serde_json::from_str` is a door that exists whether or not we like it.\n2. **The two-predicate split.** `is_typed_artifact` (media type, rank) vs `has_control_size_bound` (size). They differ on exactly one variant. Does any *other* kind land wrongly under either?\n3. **Reject paths.** `ScalarError`, `ParseError` and `RefError` are all meant never to quote rejected content — one earlier round found `Digest256`'s re-export forwarding an error that quoted the rejected value, which is an AGENTS.md P0. Worth another look at every error constructed from untrusted input.\n4. **Bounds that only hold at 1 MiB.** `const _: () = assert!(...)` in `bounds.rs` is where a stale pre-S1 assumption could still survive compilation.\n\nOut of scope by construction, and answered identically: resolver and closure traversal (step 2), reducer and `CampaignStateV1` (step 3), receipt congruence (step 4), providers (step 5), human lane (step 6).\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Codex Review: Didn't find any major issues. Chef's kiss.\n\n**Reviewed commit:** `219367d7c2`\n\n

ℹ️ About Codex in GitHub

","\n\n [View task →](https://chatgpt.com/s/cd_6a798598d16081919bf155e0f037b70d)","@codex review\n\nRe-review on `219367d`, same narrow scope. Asking rather than declaring it done because on this PR the defect has been in the fix five rounds out of five, and this round's fix is a *rewrite of a rule statement* — precisely the kind of edit that can restate a contract slightly wrong while reading fluently.\n\nThe claim to check is narrow: does the rewritten `max_size` doc state FD-1.4 as `3b26849` states it, without importing or omitting a class? And is the `+1` edge now asserted at both the unit and integration level for the manifest, and only for the manifest?\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","@chatgpt-codex-connector P1 confirmed and fixed in `219367d`. It is a better finding than its severity suggests, because of *where* it was.\n\n## What I actually did wrong\n\nI rebound the paragraph that **discussed** the manifest exception and left the sentence that **introduced the rule** stating the superseded version of it. `max_size` opened with:\n\n> FD-1.4 bounds \"control artifact payload (any typed A1 payload)\" at 1 MiB and \"single evidence blob\" at 64 MiB\n\n— and then, three paragraphs down, explained that the manifest is an exception to what it had just asserted. Neither quoted phrase occurs in `3b26849` at all. `grep -c \"control artifact payload\"` on the governing blob returns **0**.\n\nSo the doc quoted B0 as current contract text and presented the B1 rule as a qualification of it. That is the same inversion S1 removed from the contract — the exception subordinated to a general rule that no longer generalises — reproduced one layer down in the code that implements it. Rewritten to B1's three classes with the manifest as a *listed class*, not a footnote. The history is still there, but marked as history.\n\nThe mechanism is worth naming, because it is not carelessness: **I re-read what I had edited and did not re-read what I had not.** The changed paragraph was correct and I checked it. The unchanged sentence above it was wrong precisely *because* it was unchanged. On a rebind, the untouched lines are the population at risk, and I inspected the complement of that set.\n\n## Two more of the same species, one of which you named\n\nYou flagged \"the related 'recorded as a reading' comment in the manifest test\" — that is `refs.rs::an_interaction_manifest_keeps_the_evidence_bound`:\n\n```rust\n// FD-1.4 names \"manifest\" in its evidence-blob line; recorded as a test\n// so the reading is visible rather than implied by an absent branch.\n```\n\nThat inference *was* the ambiguity. FD-1.4's evidence-blob line reads \"opaque evidence blob (diff, raw provider bytes, gate log, patch)\" and the word \"manifest\" appearing near it was the whole basis of the collision S1 resolved. The test now cites the by-name rule, and asserts the `+ 1` rejection so it pins the edge and not merely the direction.\n\nThird: `has_control_size_bound` attributed \"control artifact\" to FD-1.4. §5 does use the term and `MAX_CONTROL_ARTIFACT_BYTES` carries it, so the vocabulary is legitimate — but FD-1.4 itself says \"typed A1 JSON object, except the one below\". The comment now names both, so the constant's name is not mistaken for a contract quotation.\n\n## Scope of the sweep\n\nRather than fix the three sites, I enumerated **every** FD-1.4 citation in the crate — 34 of them — and checked each quoted phrase against `3b26849`. The rest verify: `\"Exceeding any bound is a parse-time\"`, `\"these bounds exist to forbid\"`, `\"One uniform null policy, everywhere in A1\"` all still occur verbatim. Those three were the only stale ones.\n\nHead is `219367d`. 79 tests, fmt, clippy green.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","## Status update after independent step-1 review\n\nThis PR is now treated as an **empirical implementation probe against frozen A1-F v1**, not as an accepted A1-V0 step 1.\n\nThe review found four confirmed convergence inputs, recorded at `e202ac1`:\n\n- **`E-V0-1`** — the public deserialization surface can bypass the intended checked parse boundary;\n- **`E-V0-2`** — schema-specific text bounds are lost behind the generic `Text` type;\n- **`E-V0-3`** — `CommitId` validity requires repository object-format context that step 1 does not currently possess;\n- **`E-V0-4`** — FD-1.4 + FD-1.8 do not determine a unique maximum size for an envelope-bearing `ArtifactRef`; the nearby `InteractionManifestV1` 1 MiB / 64 MiB overlap is likewise a frozen-contract seam rather than an implementation choice.\n\n`E-V0-4` must be resolved through the A1-F supersede/convergence path, not by inventing a rule inside this contract-preserving PR.\n\nCI is green, but that does not change the contract-review result.\n\n**Step 2 is not authorized. Merge is not authorized.** No further implementation work should build on this wire seed until Phase G / A1-F v2 convergence resolves the relevant contract surface and the implementation is rebound to the resulting exact authority revision.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `55b0c541a2`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove the remaining pre-S1 size rationale**\n\nWhen this documentation is used to justify `max_size`, it still quotes B0's generic “any typed A1 payload” and “single evidence blob” classifications as the current FD-1.4 rule. The authoritative B1 blob `3b26849`, `docs/q-deck/a1-authority-contracts.md` FD-1.4, instead explicitly assigns `InteractionManifestV1` the 64 MiB exception; leaving the old wording here—and the related “recorded as a reading” comment in the manifest test—continues to present the resolved contradiction as an implementation judgment. Rebind these remaining comments to the explicit S1 exception.\n\nAGENTS.md reference: [AGENTS.md:L125-L131](https://github.com/PhysShell/007/blob/55b0c541a2a9758464421a8e31228feddab5b9da/AGENTS.md#L125-L131)\n\nUseful? React with 👍 / 👎.","Answering my own second question before the reviewer got to it — `bbd8bcf`. Two sites still asserted the pre-S1 contract, and asking a reviewer a question I had not first run against my own tree would have been outsourcing the cheap half.\n\n**`bounds.rs` — the constant documented a rule it does not implement.** `MAX_CONTROL_ARTIFACT_BYTES` was described as \"FD-1.4 — any typed A1 payload\". That is the exact sentence S1 removed: `InteractionManifestV1` *is* a typed A1 payload and is bounded at 64 MiB. The exception lives in `has_control_size_bound`, so the constant now points there rather than restating a bound with a silent carve-out. A comment that overstates a constant's reach is how the next reader reintroduces the collapse the two predicates exist to prevent.\n\n**`fd1_wire_seed.rs` — the manifest test never pinned the edge.** It asserted `MAX_CONTROL_ARTIFACT_BYTES * 4` is admissible: *larger than a control artifact*, never *where it stops*. That was the right restraint at the time — under the ambiguous FD-1.4 there was no edge to assert, only my reading of one, and a test asserting a reading reads afterwards as a test asserting the contract. S1 made it normative, so both sides are now asserted: `MAX_EVIDENCE_BLOB_BYTES` admissible, `+ 1` rejected.\n\nWorth stating plainly, because it is the reason the supersede was worth its own PR: neither of these could have been *fixed* before S1. The first would have been documentation drifting from an ambiguous source, and the second would have frozen an implementer's choice into a regression test. Resolving the contract is what made both of them checkable facts.\n\n**My first question stands unanswered and is still the one worth a reviewer's time.** I verified the direction I could — the superseded FD-1.4 has three size classes and names exactly one exception, and `is_typed_artifact` ∖ `has_control_size_bound` = `{InteractionManifest}`, matching. But that is me confirming my own mapping against my own reading of the section a second time, which is worth considerably less than it feels like.\n\nHead is now `bbd8bcf`. 79 tests, fmt, clippy green.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","@codex review\n\nNarrow delta pass on `55b0c54`, scoped deliberately: **no implementation logic changed in this commit.** The five previous rounds are settled at `3a1508b` and are not what I'm asking about.\n\n## What happened between rounds\n\nRound 5 surfaced a defect I classified as a *classification split* — one predicate answering two different questions. `is_typed_payload` was deciding both \"which media type must this declare\" (FD-1.7) and \"which size ceiling applies\" (FD-1.4), and those disagree on exactly one object: `InteractionManifestV1`. I split it into `is_typed_artifact` / `has_control_size_bound` and shipped that in `1825196`.\n\nBut the split was only half a fix. The reason the two answers disagreed is that **FD-1.4 itself classified the manifest twice** — it is a typed A1 JSON object (1 MiB) *and* the section's evidence-blob line names \"manifest\" (64 MiB). The code recorded my chosen reading in a comment and flagged it as a §7 candidate. That is a note saying the contract is unsound, sitting in an implementation, which is not where that belongs.\n\nSo the contract was fixed instead, through its own ceremony: **PR #126 / S1**, the first §7 supersede. Decision: 64 MiB, staying a typed A1 object for FD-1.7 media types and its FD-2 rank. Merged as `288cf84`.\n\n## The delta this commit is\n\n1. **Authority rebind `B0` → `B1`.** `docs/tasks/a1-v0.md`, `TODO.md` and the `lib.rs` header now name blob `3b26849` (`sha256:1a073975…`) instead of `7db92f1` (`sha256:9d26ee3f…`). `B0` is kept as an explicitly historical line rather than deleted, because it is what the first eight commits were written against.\n2. **Comment corrections at the two sites that described a judgement call.** `refs.rs::max_size` and `kind.rs::has_control_size_bound` now cite S1 as normative and state the grain the bound is sized for — one manifest per `provider_execution_id`, indexing ≤256 dispatches and ≤4096 `interaction_sequence` entries **in total** (§3.12).\n3. A merge of `main`, to pick up S1.\n\n## The two questions worth spending a pass on\n\n**Is the mapping from the S1 text to the two predicates exactly right?** `has_control_size_bound` returns `false` for `interaction_manifest` (→ 64 MiB) while `is_typed_artifact` returns `true` (→ frozen media type, FD-2 rank). S1 asserts both halves. Does any *other* variant of `ArtifactKindV1` land differently under the superseded FD-1.4 than it did under the original — i.e. did S1 move more than the one object I think it moved?\n\n**Does anything still assert the pre-S1 contract?** Not just prose: a constant, a test expectation, or a bound relationship that only holds at 1 MiB. `const _: () = assert!(...)` in `bounds.rs` encodes the FD-1.5 closure relationship and would be the place a stale 1 MiB assumption could survive compilation.\n\nEverything outside those two — the wire model, the parse ordering, the framing, the admission boundaries — was reviewed to convergence in rounds 1–5 and has not been touched. If something there is genuinely wrong it is still worth saying, but it is not what changed.\n\nCodeRabbit is intentionally not being invoked on this delta; it hit its OSS rate limit during round 5 and is better spent on a single full pass at ready.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","## Review Result\n\nNo new P0 or P1 findings at `3a1508b`.\n\nThe overflow path now consumes the first entry beyond the effective cap as `serde::de::IgnoredAny`, rather than deserializing it into `T`. Thus, an oversized `ArtifactRef` is traversed without constructing its owned `media_type` string or validating the rest of the reference as an `ArtifactRef`. Exactly-at-cap sequences remain accepted. [crates/o7-a1-contracts/src/scalars.rsL458-L485](https://github.com/PhysShell/007/blob/3a1508bda4999df7c6564ff26276ac6aee36a3a5/crates/o7-a1-contracts/src/scalars.rs#L458-L485)\n\nThe effective capacity remains the lesser of the schema-specific bound and the global array bound, while the deserializer’s capacity hint is clamped to that effective cap. [crates/o7-a1-contracts/src/scalars.rsL421-L430](https://github.com/PhysShell/007/blob/3a1508bda4999df7c6564ff26276ac6aee36a3a5/crates/o7-a1-contracts/src/scalars.rs#L421-L430) [crates/o7-a1-contracts/src/scalars.rsL462-L464](https://github.com/PhysShell/007/blob/3a1508bda4999df7c6564ff26276ac6aee36a3a5/crates/o7-a1-contracts/src/scalars.rs#L462-L464)\n\nRegression coverage includes an oversized and independently invalid overflow entry, plus a successful exactly-at-cap case. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL745-L773](https://github.com/PhysShell/007/blob/3a1508bda4999df7c6564ff26276ac6aee36a3a5/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L745-L773)\n\nNo files were changed during this review, so no commit or follow-up pull request was created. The existing `fuzz/Cargo.lock` modification was left untouched.\n\n**Checks**\n\n- ✅ `cargo test -p o7-a1-contracts`\n- ✅ `cargo fmt --all --check`\n- ✅ `cargo clippy -p o7-a1-contracts --all-targets -- -D warnings`\n- ✅ `git show --format=fuller --find-renames --unified=100 HEAD -- crates/o7-a1-contracts/src/scalars.rs crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- ⚠️ `git status --short` — reports the pre-existing `fuzz/Cargo.lock` modification; it was not altered during this review.\n\n [View task →](https://chatgpt.com/s/cd_6a79404ed6888191b4891c8983c2be09)","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused diff =='\ngit rev-parse HEAD\ngit show --stat --oneline 3a1508b\ngit diff --unified=120 3a1508b^ 3a1508b -- \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Module structure =='\nfor f in \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== BoundedVec and all serde visitor routes =='\nrg -n -C 18 --type rust \\\n '\\b(BoundedVec|visit_seq|SeqAccess|IgnoredAny|next_element|size_hint|deserialize_seq|Deserialize|ArtifactRefs)\\b' \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== ArtifactRef validation/deserialization routes =='\nrg -n -C 10 --type rust \\\n '\\b(ArtifactRef|ArtifactRefWire|validate|from_(str|slice|value)|parse_artifact|WireArtifact)\\b' \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== Exact source and focused tests =='\nsed -n '390,520p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,260p' crates/o7-a1-contracts/src/refs.rs\nrg -n -C 12 --type rust \\\n 'overflow|IgnoredAny|BoundedVec|ArtifactRefs|257|MAX_ARTIFACT_REFS|oversized|invalid' \\\n crates/o7-a1-contracts/tests \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 192551\n\n---\n\n

\n\n`@PhysShell` No actionable P0/P1 defect found in `3a1508b`.\n\n`BoundedVec` now clamps retained capacity and consumes the first overflow element as `serde::de::IgnoredAny`. This prevents the previous `T` deserialization path for that element. The regression covers an oversized and invalid overflow `ArtifactRef`.\n\n\n\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T03:07:15.441Z\nLearning: In Rust crate `crates/o7-a1-contracts`, `BoundedVec` must enforce its effective cap during `Deserialize`. Its sequence visitor must clamp capacity hints and consume the first element after the cap as `serde::de::IgnoredAny`, then reject, so it does not deserialize or allocate the overflowing element as `T`. Regression coverage uses `ArtifactRefs` with `MAX_ARTIFACT_REFS` valid entries followed by an oversized, invalid reference.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n---\n\n\n\nIf you found this review helpful, would you consider giving us a shout-out on [X](https://twitter.com/intent/tweet?related=CodeRabbitAI&text=Five%20review%20rounds%2C%2010%20real%20defects%3A%20%40coderabbitai%20exposed%20deserialization%20bypasses%2C%20credential-leaking%20errors%2C%20invalid%20media%20types%2C%20and%20allocation-before-reject%20DoS%20risks%E2%80%94before%20foundation%20code%20shipped.%20Try%20it!%20%F0%9F%94%8D&url=https%3A%2F%2Fgithub.com%2FPhysShell%2F007%2Fpull%2F124)?\n\nThank you for using CodeRabbit!\n\n\n\n_{You are interacting with an AI system.}","Fifth round: @chatgpt-codex-connector clean, @coderabbitai found one more real thing. Fixed in `3a1508b`.\n\n`BoundedVec` stopped materialising elements *after* the cap but still deserialized the first one past it as a full `T` — so a 257th artifact ref carrying a megabyte of `media_type` was allocated before being rejected. That is the previous commit's own sentence arriving one level finer: the earlier fix moved the cost from N elements to one, and one was still one too many.\n\nThe suggested framing was that `SeqAccess` cannot distinguish \"another element\" from \"end of sequence\" without consuming input, and therefore the limit should be documented. It can be closed rather than documented: the overflow is now read as `serde::de::IgnoredAny`, so the deserializer walks past the value without building it. The refusal costs nothing and the element's contents — however large, however invalid — are never touched. The regression makes that entry both oversized *and* individually invalid, so an implementation that reaches it at all fails for one reason or the other.\n\n79 tests, `cargo fmt --check` and `cargo clippy --all-targets` clean.\n\n---\n\n## Stopping here\n\nFive rounds, ten findings. The pattern held to the end: **every round found the defect in the previous fix, not in the original code** — and the last two were the same defect at successively finer grain, which is a good sign that this seam is now actually closed rather than merely quiet.\n\nWhat review caught that I would not have:\n\n| | |\n|---|---|\n| P0 | `Digest256` re-export leaking a rejected value into a serde error |\n| P1 | the media-type / size-bound classification collapse |\n| P1 | allocate-then-reject, twice, at two different grains |\n\nAnd what it caught about my process, which is the more useful half: three times a regression test of mine *documented* a hole instead of closing it. I kept writing tests that described the boundary I had built rather than attacking it.\n\nStep 1 rests here unless something real turns up. Step 2 — CAS and the resolver — waits on the maintainer, per the instruction to get independent review of step 1 first.\n\nOne thing an implementer should not decide, carried forward: FD-1.4 is internally ambiguous about `interaction_manifest`, calling any typed A1 payload a control artifact while listing \"manifest\" as an evidence blob. Both reviewers agree it needs the contract owner. It is worth a §7 clarification **before** step 2, because closure resolution is the code that starts charging bytes against that boundary.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Codex Review: Didn't find any major issues. More of your lovely PRs please.\n\n**Reviewed commit:** `7d176de9fb`\n\n

ℹ️ About Codex in GitHub

","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Revision and focused change =='\ngit rev-parse HEAD\ngit show --stat --oneline 7d176de\ngit diff --unified=100 7d176de^ 7d176de -- \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/tests\n\nprintf '%s\\n' '== Module maps =='\nast-grep outline crates/o7-a1-contracts/src/scalars.rs --items all --view compact\nast-grep outline crates/o7-a1-contracts/src/refs.rs --items all --view compact\nast-grep outline crates/o7-a1-contracts/src/envelope.rs --items all --view compact\nast-grep outline crates/o7-a1-contracts/src/json.rs --items all --view compact\nast-grep outline crates/o7-a1-contracts/src/lib.rs --items all --view compact\n\nprintf '%s\\n' '== BoundedVec and ArtifactRef implementations =='\nrg -n -C 14 --type rust \\\n '\\b(BoundedVec|ArtifactRefWire|ArtifactRef|visit_seq|SeqAccess|size_hint|Deserialize|deserialize|validate)\\b' \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== Public ArtifactRef routes and field uses =='\nrg -n -C 7 --type rust \\\n '\\bArtifactRef\\b|serde_json::from_(str|slice|value)\\s*::?\\s*<\\s*ArtifactRef|ArtifactRef\\s*\\{' \\\n crates \\\n -g '!target/**'\n\nprintf '%s\\n' '== Focused tests =='\nrg -n -C 10 --type rust \\\n '\\b(BoundedVec|ArtifactRef|from_str|from_slice|from_value|size_hint|array|media_type|size)\\b' \\\n crates/o7-a1-contracts/tests \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 38757\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Exact relevant source =='\nsed -n '1,140p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '330,445p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,235p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,185p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,140p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== Public deserialization surface and type construction =='\nrg -n -C 5 --type rust \\\n 'pub(\$[^)]*\$)?\\s+(struct|type|trait|fn|use)|impl.*Deserialize|derive\\(.*Deserialize|from_(str|slice|value)\\s*::?\\s*<|deserialize_seq|next_element|size_hint|ArtifactRef\\s*\\{' \\\n crates/o7-a1-contracts/src crates/o7-a1-contracts/tests \\\n -g '!target/**'\n\nprintf '%s\\n' '== String and media-type validation paths =='\nrg -n -C 8 --type rust \\\n 'String::deserialize|String\\b|MAX_STRING_BYTES|media_type|validate_document|walk|visit_str|deserialize_str|Deserialize.*Text|impl.*Deserialize' \\\n crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== Tests for direct input and collection limits =='\nrg -n -C 8 --type rust \\\n 'ArtifactRefs|BoundedVec|ArtifactRef|MAX_ARRAY_LEN|MAX_ARTIFACT_REFS|from_str|from_slice|from_value|oversized|TooManyEntries' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 193296\n\n---\n\n

\n\n`@PhysShell` **P1 — `BoundedVec` still deserializes and allocates the first overflowing element.**\n\nIn `crates/o7-a1-contracts/src/scalars.rs`, Line 465 calls:\n\n```rust\nseq.next_element::()?\n```\n\nbefore Line 466 checks whether `items.len() >= cap`.\n\nFor `ArtifactRefs`, a direct public route can send 256 valid references followed by a 257th reference whose `media_type` is arbitrarily large:\n\n```rust\nserde_json::from_str::(&json)\n```\n\nSerde allocates the overflowing `ArtifactRefWire.media_type` as a `String` before `BoundedVec` rejects the 257th element. `ArtifactRef::validate()` also runs only after the string allocation.\n\nThe visitor therefore prevents materialization of later elements, but it does not meet the claimed parse-time allocation bound. The existing test uses small references and does not cover this case.\n\nCheck `items.len() >= cap` before `next_element`. A generic `SeqAccess` visitor cannot distinguish EOF from another element without consuming input. If the generic API must remain, document that limit. Otherwise, use an input layer that enforces string and byte limits before generic serde deserialization.\n\n_{You are interacting with an AI system.}","@coderabbitai review\n\n@codex review\n\nFifth pass, on `7d176de`. Four rounds have each found something real, and each time it was in the previous fix — so the two things this round changed are the ones to press on:\n\n1. **`BoundedVec`'s sequence visitor.** It stops one element past the cap and clamps `size_hint` to the cap. Does it hold for every deserializer shape — `from_str`, `from_slice`, `from_value` — and does stopping *one past* still bound allocation acceptably, or is there a formulation that refuses without deserializing the overflowing element at all?\n2. **`ArtifactRef`'s validating `Deserialize`.** Same mirror pattern as the envelope, so the same drift question applies: `ArtifactRefWire` and `ArtifactRef` are hand-kept in sync with `deny_unknown_fields` on both and a `From` written field by field. Is that enough, and is there a route to an `ArtifactRef` that skips `validate()` — including as a field inside another type?\n\nEverything else is unchanged from the round you already passed.\n\nIf this one comes back clean, I am stopping here rather than continuing to churn a foundation that is correct — please say so plainly if it is.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Fourth round fixed in `7d176de`. Both findings valid; both are the same lesson arriving somewhere I had not looked.\n\n**`ArtifactRef` had the envelope's hole.** Its rules relate `kind` to `media_type` and to `size`, so no single field can enforce them — exactly the shape that made `EnvelopeV1` need a validating `Deserialize`. A derived one admitted a `work_order` ref declaring `text/x-diff` with `size: 0`. It now goes through a private `ArtifactRefWire` and validates before it exists. Fixing this for the envelope and not for the type the envelope is made of was an incomplete fix rather than a smaller one.\n\n**Bounding a collection after reading it is a report, not a rejection.** `BoundedVec` deserialized the whole `Vec` — every element and its owned strings — then compared against the cap. FD-1.4 asks for a parse-time rejection, and one that arrives after the memory is spent is not that. The visitor now stops one element past the cap and clamps the capacity hint, so a declared length cannot preallocate either. This is the finding I am most glad to have: it is a denial-of-service shape, and no amount of staring at correctness would have surfaced it.\n\nAlso fixed a doc comment I misplaced in the previous commit — `EnvelopeV1`'s §3.0 description had ended up attached to the private wire mirror.\n\n78 tests, `cargo fmt --check` and `cargo clippy --all-targets` clean.\n\n---\n\n## Where this stands\n\nFour rounds, nine findings, and the pattern is consistent enough to be worth stating: **every round found the defect in my previous fix, not in the original code.** Each fix was correct about the case in front of it and incomplete about the shape it belonged to — `validate()` before parse, then a public unchecked helper, then a derived `Deserialize`, then the same derived `Deserialize` one type down, then a bound checked one step too late.\n\nThree of those nine I would not have found by re-reading: the `Digest256` re-export leaking a rejected value, the media-type/size classification collapse, and the allocate-then-reject sequence.\n\nI am not treating a clean pass as the expected next outcome, but I would rather stop at a foundation that is correct than keep churning one — so unless the next round finds something real, this is where step 1 rests, and step 2 waits on the maintainer.\n\nThe FD-1.4 ambiguity is unchanged and is the one thing here that an implementer should not resolve: the section calls any typed A1 payload a control artifact while listing \"manifest\" as an evidence blob. A §7 clarification would be worth having before closure resolution starts charging bytes against that boundary.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `1825196f04`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Check the collection cap before allocating the whole vector**\n\nWhen the explicitly supported `serde_json::from_slice::` route receives attacker-controlled JSON with far more than 256 `artifact_refs`, this first deserializes every element—including its owned strings—into an unrestricted `Vec` and only then checks `MAX`/`MAX_ARRAY_LEN`, so the process can exhaust memory before returning `TooManyEntries`. Fresh evidence beyond the earlier direct-deserialization finding is this new post-collection `BoundedVec` check; use a sequence visitor that stops after the effective `min(MAX, MAX_ARRAY_LEN)` limit. The frozen contract blob `7db92f1b3dc9d7040da074956a0b3f2f200174c8`, `docs/q-deck/a1-authority-contracts.md:200-217`, establishes the global array cap and parse-time rejection requirement.\n\nAGENTS.md reference: [AGENTS.md:L125-L133](https://github.com/PhysShell/007/blob/1825196f043716540349a4c86339016e9a1d25e9/AGENTS.md#L125-L133)\n\nUseful? React with 👍 / 👎.","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== revision =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 1825196\n\nprintf '%s\\n' '== focused structure =='\nfor f in \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '%s\\n' '== envelope and bounded-vector source =='\nsed -n '1,320p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '1,380p' crates/o7-a1-contracts/src/scalars.rs\nsed -n '1,260p' crates/o7-a1-contracts/src/json.rs\nsed -n '1,180p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '== all EnvelopeV1 routes and serde attributes =='\nrg -n -C 6 --type rust \\\n '\\b(EnvelopeV1|EnvelopeWireV1|BoundedVec|WireArtifact|parse_artifact|parse_typed|from_(str|slice|value)|Deserialize|serde\\(|validate\\s*\\()' \\\n crates \\\n -g '!target/**'\n\nprintf '%s\\n' '== focused regression tests =='\nrg -n -C 8 --type rust \\\n 'EnvelopeWireV1|EnvelopeV1|BoundedVec|artifact_refs|from_(str|slice|value)|parse_artifact|default|null|MAX_ARRAY_LEN|MAX_ARTIFACT_REFS' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n\nprintf '%s\\n' '== current enforcement diff =='\ngit diff --unified=100 1825196^ 1825196 -- \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/tests\n```\n\nLength of output: 136834\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== exact envelope declarations =='\nnl -ba crates/o7-a1-contracts/src/envelope.rs | sed -n '55,240p'\n\nprintf '%s\\n' '== exact reference declarations =='\nnl -ba crates/o7-a1-contracts/src/refs.rs | sed -n '1,180p'\n\nprintf '%s\\n' '== all direct EnvelopeV1 construction and conversion implementations =='\nrg -n -C 4 --type rust \\\n '(impl\\s*(<[^>]*>\\s*)?(From|TryFrom|Deserialize)\\b.*EnvelopeV1|EnvelopeV1\\s*\\{|serde_json::from_(slice|str|value)\\s*::?\\s*<\\s*EnvelopeV1|parse_artifact\\s*::?\\s*<\\s*EnvelopeV1)' \\\n . \\\n -g '!target/**'\n\nprintf '%s\\n' '== public parsing and deserialization exports =='\nrg -n -C 3 --type rust \\\n 'pub(\$[^)]*\$)?\\s+(fn|use|struct|type|trait)|pub\\s+mod' \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== bounded-vector API and tests =='\nnl -ba crates/o7-a1-contracts/src/scalars.rs | sed -n '340,435p'\nrg -n -C 5 --type rust \\\n '(BoundedVec|ArtifactRefs|MAX_ARRAY_LEN|MAX_ARTIFACT_REFS)' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n```\n\nLength of output: 1477\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== exact envelope declarations =='\nsed -n '55,240p' crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== exact reference declarations =='\nsed -n '1,180p' crates/o7-a1-contracts/src/refs.rs\n\nprintf '%s\\n' '== all direct EnvelopeV1 construction and conversion implementations =='\nrg -n -C 4 --type rust \\\n '(impl\\s*(<[^>]*>\\s*)?(From|TryFrom|Deserialize)\\b.*EnvelopeV1|EnvelopeV1\\s*\\{|serde_json::from_(slice|str|value)\\s*::?\\s*<\\s*EnvelopeV1|parse_artifact\\s*::?\\s*<\\s*EnvelopeV1)' \\\n . \\\n -g '!target/**'\n\nprintf '%s\\n' '== public parsing and deserialization exports =='\nrg -n -C 3 --type rust \\\n 'pub(\$[^)]*\$)?\\s+(fn|use|struct|type|trait)|pub\\s+mod' \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/envelope.rs\n\nprintf '%s\\n' '== bounded-vector API and tests =='\nsed -n '340,435p' crates/o7-a1-contracts/src/scalars.rs\nrg -n -C 5 --type rust \\\n '(BoundedVec|ArtifactRefs|MAX_ARRAY_LEN|MAX_ARTIFACT_REFS)' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n```\n\nLength of output: 79245\n\n---\n\n

\n\n`@PhysShell` **P1 — Direct deserialization can construct an invalid `ArtifactRef`.**\n\n`ArtifactRef` derives public `Deserialize` in `crates/o7-a1-contracts/src/refs.rs`. Its media-type and size rules run only in `ArtifactRef::validate()`.\n\nThis input returns `Ok(ArtifactRef)` through direct serde:\n\n```rust\nserde_json::from_str::(\n r#\"{\n \"kind\":\"work_order\",\n \"media_type\":\"text/x-diff\",\n \"digest\":\"0000000000000000000000000000000000000000000000000000000000000000\",\n \"size\":0\n }\"#,\n)\n```\n\nThe result violates two `ArtifactRef` rules: `work_order` must use its frozen typed media type, and `size` must be nonzero.\n\n`EnvelopeV1` rejects this value because `EnvelopeV1::deserialize` calls `validate()`. The public `ArtifactRef` route remains unchecked. Implement validating `Deserialize` for `ArtifactRef`, or deserialize through a private raw reference type and validate before returning `ArtifactRef`.\n\nI found no P0/P1 defect in the `EnvelopeWireV1` mirror, byte-to-`EnvelopeV1` routes, or `BoundedVec` cap.\n\n_{You are interacting with an AI system.}","@coderabbitai review\n\n@codex review\n\nFourth and, unless something real turns up, final pass — on `1825196`. Asking because this change has a specific structural risk rather than because more rounds are automatically better: `EnvelopeV1` now deserializes through a private `EnvelopeWireV1` mirror, and a hand-maintained duplicate field list is exactly the kind of thing that is correct on the day it is written.\n\nNarrow questions:\n\n1. **Does the mirror actually hold?** `From` is field-by-field and both forms carry `deny_unknown_fields`, with a round-trip test in both directions. Is there a field, attribute, or `serde` default that can differ between the two without any of those three catching it — particularly `#[serde(default)]` placement, since `Optional` depends on it to tell absent from null?\n2. **Is there still any route from bytes to an `EnvelopeV1` that skips `validate()`?** Three have now been closed in sequence; I would rather hear about a fourth than assume there is not one.\n3. **`BoundedVec`** — does it enforce on every path, and does its cap interact correctly with the global `MAX_ARRAY_LEN`?\n\nIf nothing real turns up, please say so plainly. Three rounds have each found genuine defects, so I am not treating a clean pass as the expected outcome — but I would rather stop at a correct foundation than keep churning one.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Third round fixed in `1825196`. Both reviewers converged on the same two findings, and both were right.\n\n## Cross-field rules now run on every route\n\nMaking `parse_typed` crate-internal did not close the direct door: `EnvelopeV1` still derived `Deserialize`, so `serde_json::from_slice` and `from_value` returned `Ok` for a coder envelope with its provider evidence absent.\n\nThe part worth recording: **my own new regression test used that very route** to check digest redaction, while leaving the cross-field gap unexercised. That is the second time a test of mine has documented a hole rather than closed it — first `parse_payload` returning `Ok`, now this. The pattern is that I keep writing tests that describe the boundary I built instead of attacking it.\n\n`EnvelopeV1` now deserializes through a private `EnvelopeWireV1` and runs `validate()` before it exists. The duplicated field list is the price, so the drift it invites is tested rather than trusted: `From` is written field by field (a missing field fails to compile), both forms carry `deny_unknown_fields` (an extra field fails to deserialize), and a round-trip test covers both directions.\n\n**One consequence worth naming rather than discovering later:** a cross-field violation reached through `parse_artifact` now surfaces as a schema mismatch instead of a distinct `Invalid` verdict, because it is caught during deserialization. Earlier and on every route, at the cost of a coarser error category — the serde message that would carry the reason is not safe to propagate wholesale, which is exactly why only the category crosses.\n\n## Two questions, two classifications\n\n`is_typed_payload` was doing double duty: FD-1.7 media types *and* FD-1.4 size bounds. Because `interaction_manifest` is excluded for size, it was also escaping the media-type check — yet FD-1.9 classifies it as a typed non-envelope object, so FD-1.7 fixes its media type regardless of how large it is permitted to be.\n\nThis is the sharper half of the finding, and it is a correction to my previous reply: I defended the 64 MiB reading and then let that reading leak into a question it does not answer. Now `is_typed_artifact` (media type, includes the manifest) and `has_control_size_bound` (size, excludes it), with a test pinning both halves.\n\n## Also\n\n`artifact_refs` is now `BoundedVec<_, MAX_ARTIFACT_REFS>`, so the count is refused at deserialization rather than by a validator the direct route skips. A container bound is a property of the field, not a cross-field rule — the same correction as the previous round, applied to the one rule left behind.\n\n76 tests, `cargo fmt --check` and `cargo clippy --all-targets` clean.\n\nThe ambiguity in FD-1.4 is unchanged and still worth a §7 clarification before step 2's closure resolution charges bytes against it: the section calls any typed A1 payload a control artifact while listing \"manifest\" as an evidence blob. Codex's framing is the right one — that needs the contract owner, not an implementer picking a side.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `11eea41384`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce the typed media type for interaction manifests**\n\nAn `ArtifactRef` with `kind: interaction_manifest` and `media_type: application/octet-stream` bypasses this condition and passes `validate()`, because `is_typed_payload()` deliberately excludes manifests for size-accounting purposes. The frozen contract blob `7db92f1b3dc9d7040da074956a0b3f2f200174c8` applies the vendor media-type format to typed artifacts (`docs/q-deck/a1-authority-contracts.md:364-368`) and explicitly classifies `interaction_manifest` as an A1 typed non-envelope object (`docs/q-deck/a1-authority-contracts.md:404-409`); its 64 MiB size classification does not make it an evidence blob. Use a media-type predicate that includes manifests while retaining their separate size bound.\n\nAGENTS.md reference: [AGENTS.md:L125-L133](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/AGENTS.md#L125-L133)\n\nUseful? React with 👍 / 👎.","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Validate raw deserialization before constructing EnvelopeV1**\n\nMaking `parse_typed` crate-private does not close the public unchecked route while `EnvelopeV1` still implements `Deserialize`: both `serde_json::from_slice::` and `serde_json::from_value::` return `Ok` for a `coder` envelope with all provider-only fields absent because neither invokes `validate_wire`. The frozen contract blob `7db92f1b3dc9d7040da074956a0b3f2f200174c8` requires those fields iff the role is coder/reviewer (`docs/q-deck/a1-authority-contracts.md:1194-1201`). Fresh evidence after the earlier finding is that the new regression test at `tests/fd1_wire_seed.rs:571-579` itself exercises this still-public deserialization route but checks only digest-error redaction; remove that route or make deserialization enforce the cross-field validation.\n\nAGENTS.md reference: [AGENTS.md:L125-L133](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/AGENTS.md#L125-L133)\n\nUseful? React with 👍 / 👎.","## Review Result\n\nNo new P0 or P1 findings at `11eea41`.\n\nThe second-round changes address the reported defects:\n\n- `parse_typed` is now crate-internal, while the public `parse_artifact` path performs document validation, typed deserialization, and `WireArtifact::validate_wire`, closing the previously advertised unchecked parsing path. [crates/o7-a1-contracts/src/json.rsL133-L166](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/src/json.rs#L133-L166)\n- `WireDigest` retains the underlying `Digest256` but supplies a redacting deserializer whose errors report only malformed shape metadata, not the rejected digest value. [crates/o7-a1-contracts/src/scalars.rsL234-L295](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/src/scalars.rs#L234-L295)\n- Typed envelope and non-envelope references now require the media type fixed by their artifact kind and frozen version, while imported A0 artifacts and evidence blobs retain concrete media types. [crates/o7-a1-contracts/src/refs.rsL63-L102](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/src/refs.rs#L63-L102)\n- Regression coverage verifies both cross-field admission enforcement and successful admission of the corresponding valid envelope. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL427-L453](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L427-L453)\n- Regression coverage also exercises digest-error redaction through both public admission and direct Serde deserialization. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL552-L589](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L552-L589)\n- Typed-media enforcement is tested for rejection, acceptance with the frozen media type, and preservation of evidence-blob concrete media types. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL591-L629](https://github.com/PhysShell/007/blob/11eea413844ce249a52e608a5171330bbf8cd9e9/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L591-L629)\n\n## Checks\n\n- ✅ `cargo test -p o7-a1-contracts`\n- ✅ `cargo fmt --all --check`\n- ✅ `cargo clippy -p o7-a1-contracts --all-targets -- -D warnings`\n- ✅ `rg -n \"impl WireArtifact|parse_typed|parse_payload|WireDigest|Digest256|is_typed_payload|is_envelope_bearing|typed_media_type|ArtifactRef\" crates/o7-a1-contracts/src crates/o7-a1-contracts/tests`\n- ✅ `git diff 2617370..HEAD -- crates/o7-a1-contracts`\n- ⚠️ `git status --short` reports a pre-existing modification to `fuzz/Cargo.lock`; I did not alter or include it.\n\nNo files were changed during this review, so no commit or follow-up pull request was created.\n\n [View task →](https://chatgpt.com/s/cd_6a7939a3d5c08191b0f6233979584971)","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Commit and changed files =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 11eea41\ngit diff --name-only 11eea41^ 11eea41\n\nprintf '%s\\n' '== Relevant module outlines =='\nfor f in \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/lib.rs \\\n crates/o7-a1-contracts/src/kind.rs; do\n if [ -f \"$f\" ]; then\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all --view compact || true\n fi\ndone\n\nprintf '%s\\n' '== Third-pass diff =='\ngit diff --find-renames --unified=100 11eea41^ 11eea41 -- \\\n crates/o7-a1-contracts \\\n docs/tasks/a1-v0.md\n\nprintf '%s\\n' '== Public parsing, deserialization, and digest paths =='\nrg -n -C 6 --type rust \\\n '\\b(WireDigest|Digest256|DigestFormatError|parse_typed|parse_artifact|parse_payload|WireArtifact|Deserialize|serde_json::from_(str|slice|value)|from_value|from_str|From<|TryFrom<|framed_digest|#\\[serde)' \\\n crates \\\n -g '!target/**'\n\nprintf '%s\\n' '== Error-display and rejected-input paths =='\nrg -n -C 5 --type rust \\\n '#\\[error\\(|impl\\s+(?:fmt::Display|std::fmt::Display)|Error::custom|map_err|to_string\\(|format!\\(' \\\n crates/o7-a1-contracts crates/o7-run \\\n -g '!target/**'\n\nprintf '%s\\n' '== Artifact kind classification and media-type checks =='\nsed -n '1,300p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,420p' crates/o7-a1-contracts/src/kind.rs\n\nprintf '%s\\n' '== Contract clauses =='\nrg -n -i -C 8 \\\n 'FD-1\\.7|media.type|media type|typed artifact|typed payload|evidence blob|imported A0|v=1|interaction_manifest|envelope-bearing' \\\n docs \\\n -g '*.md' || true\n\nprintf '%s\\n' '== Relevant tests =='\nrg -n -C 6 --type rust \\\n 'WireDigest|from_value|from_slice|from_str|parse_artifact|parse_typed|media_type|v=|Digest' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 182467\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Envelope type, cross-field validation, and WireArtifact implementation =='\nsed -n '70,230p' crates/o7-a1-contracts/src/envelope.rs\nsed -n '80,175p' crates/o7-a1-contracts/src/json.rs\n\nprintf '%s\\n' '== All WireArtifact implementations and EnvelopeV1 deserialization declarations =='\nrg -n -C 8 --type rust \\\n 'impl\\s+WireArtifact\\s+for|impl.*Deserialize.*EnvelopeV1|struct\\s+EnvelopeV1|derive\\(.*Deserialize' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '%s\\n' '== External public surface and direct parse routes =='\nsed -n '45,75p' crates/o7-a1-contracts/src/lib.rs\nrg -n -C 5 --type rust \\\n 'serde_json::from_(str|slice|value)\\s*::?\\s*<\\s*(EnvelopeV1|ArtifactRef)|\\bEnvelopeV1\\b.*Deserialize|parse_artifact\\s*::?\\s*<' \\\n . \\\n -g '!target/**'\n\nprintf '%s\\n' '== Interaction-manifest classification and schema references =='\nrg -n -C 10 \\\n 'InteractionManifest|interaction_manifest|is_typed_payload|typed artifacts|FD-1\\.7' \\\n crates/o7-a1-contracts/src docs/q-deck/a1-authority-contracts.md \\\n -g '*.rs' -g '*.md'\n```\n\nLength of output: 79407\n\n---\n\n

\n\n`@PhysShell` I found two P1 defects.\n\n1. **P1 — Public `Deserialize` still bypasses `validate_wire`.** \n `EnvelopeV1` derives public `Deserialize` in `crates/o7-a1-contracts/src/envelope.rs` Line 79. Its cross-field rules run only through `WireArtifact::validate_wire()` at Line 224, which `serde_json::from_slice::` does not call.\n\n A caller can serialize a valid coder envelope, remove `provider_execution_receipt_ref`, then call:\n\n ```rust\n serde_json::from_slice::(&bytes)\n ```\n\n This returns `Ok(EnvelopeV1)`. The provider-only fields are individually valid, but the required receipt reference is absent. `parse_artifact` rejects this input, but direct deserialization remains a public byte-to-wire route that skips the admission rule.\n\n Remove public deserialization of `EnvelopeV1`, or implement deserialization through a private wire representation that invokes the cross-field validation before it returns `EnvelopeV1`. Add a regression test for direct deserialization of the missing-receipt provider envelope.\n\n2. **P1 — `interaction_manifest` bypasses the FD-1.7 media-type check.** \n `ArtifactRef::validate()` in `crates/o7-a1-contracts/src/refs.rs` Line 85 checks media type only when `is_envelope_bearing()` or `is_typed_payload()` is true. `ArtifactKindV1::is_typed_payload()` in `crates/o7-a1-contracts/src/kind.rs` Line 287 excludes `InteractionManifest`.\n\n Therefore, this reference passes `ArtifactRef::validate()`:\n\n ```rust\n ArtifactRef {\n kind: ArtifactKindV1::InteractionManifest,\n media_type: \"application/octet-stream\".to_owned(),\n digest: WireDigest::of_bytes(b\"manifest\"),\n size: 1,\n }\n ```\n\n FD-1.9 lists `interaction_manifest` as an A1 typed non-envelope object. FD-1.7 requires its media type to be exactly:\n\n ```text\n application/vnd.o7.a1.interaction_manifest+json; v=1\n ```\n\n The 64 MiB interpretation affects the size bound only. It does not make `interaction_manifest` an evidence blob for FD-1.7. Use a classification for all typed artifacts, including `InteractionManifest`, when applying the media-type check. Keep the separate size-bound classification if the documented 64 MiB interpretation remains intended.\n\n_{You are interacting with an AI system.}","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\ngit show --stat --oneline 11eea41\ngit diff --unified=100 11eea41^ 11eea41 -- \\\n crates/o7-a1-contracts/src \\\n crates/o7-a1-contracts/tests\n\nprintf '\\n== Public contract API ==\\n'\nast-grep outline crates/o7-a1-contracts/src/lib.rs --items all --view expanded\nsed -n '1,240p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '\\n== Parsing and error implementation ==\\n'\nast-grep outline crates/o7-a1-contracts/src/json.rs --items all --view expanded\nsed -n '1,320p' crates/o7-a1-contracts/src/json.rs\nrg -n -C 5 --type rust \\\n '\\b(parse_payload|parse_typed|parse_artifact|WireArtifact|serde_json::from_(str|slice|value)|Deserialize|WireDigest|DigestFormatError|ParseError|ScalarError|RefError|EnvelopeError)\\b' \\\n crates/o7-a1-contracts \\\n -g '!target/**'\n\nprintf '\\n== Reference validation and relevant tests ==\\n'\nsed -n '1,260p' crates/o7-a1-contracts/src/refs.rs\nsed -n '1,300p' crates/o7-a1-contracts/src/scalars.rs\nrg -n -C 6 --type rust \\\n 'media_type|WireDigest|parse_artifact|parse_typed|secret|ghp_|invalid.*digest|typed.*media' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src \\\n -g '!target/**'\n```\n\nLength of output: 171153\n\n---\n\n

\n\n`@PhysShell` P1: Direct serde deserialization still bypasses the admission limits.\n\n`EnvelopeV1` derives public `Deserialize` at `crates/o7-a1-contracts/src/envelope.rs` Line 79. Therefore a caller can use:\n\n```rust\nserde_json::from_slice::(&bytes)\n```\n\nThis path does not call `validate_document` or `EnvelopeV1::validate`.\n\nFor example, a valid envelope with 4097 valid `artifact_refs` constructs `EnvelopeV1` successfully. It bypasses the global array limit and the `MAX_ARTIFACT_REFS` check at `crates/o7-a1-contracts/src/envelope.rs` Line 191. A payload above the supplied byte limit also bypasses `validate_document`.\n\nThis contradicts the stated invariant that no document reaches a typed wire schema without the pre-deserialization pass. Implement manual `Deserialize` for each public wire artifact that enforces the complete admission boundary, or prevent direct deserialization of public wire artifacts. Add a regression test for direct `serde_json::from_slice::` with more than `MAX_ARTIFACT_REFS` entries.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T02:38:52.617Z\nLearning: In Rust crate `crates/o7-a1-contracts`, the frozen FD-1.4 contract text is internally ambiguous for `interaction_manifest`: it calls every typed A1 payload a control artifact but explicitly lists “manifest” as an evidence blob. The current implementation assigns `ArtifactKindV1::InteractionManifest` the 64 MiB evidence-blob limit and records that interpretation in documentation and tests. Contract-owner clarification or a §7 supersede is needed before later closure-resolution code relies on this limit.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","@coderabbitai review\n\n@codex review\n\nThird pass on `11eea41`. Two rounds have each found real defects, and both times the second-order mistake was in the *fix* rather than the original code — so this asks specifically about what the fix introduced, not about the crate in general.\n\n1. **`WireDigest`** (`src/scalars.rs`) is new public surface added to stop `DigestFormatError` quoting a rejected value. Does it actually close that path — including `serde_json::from_value`, and the `Digest256` that `framed_digest` still returns? And does wrapping introduce a way for a digest to be constructed that did not come from real bytes, which the crate claims cannot happen?\n2. **`parse_typed` is now `pub(crate)`.** Is there any remaining public route from bytes to a `WireArtifact` type that skips `validate_wire` — a `Deserialize` impl, a `From`, a re-export I missed?\n3. **The FD-1.7 media-type check** rejects a typed ref whose `media_type` does not match its kind. Is the *set* right — envelope-bearing plus `is_typed_payload`, with evidence blobs and imported A0 kinds exempt — and does it wrongly reject anything the contract permits, e.g. a differing `v=` parameter?\n\nIf a round finds nothing, say so plainly; I would rather stop here than keep churning a foundation that is already correct. Scope unchanged: resolver, reducer, congruence, adapters and the human lane are later steps of `docs/tasks/a1-v0.md`.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","Second round fixed in `11eea41`. Three findings, all valid, and one of them lands squarely on me.\n\n## The door I left open — both reviewers, independently\n\n@chatgpt-codex-connector and @coderabbitai reached the same conclusion: making `parse_artifact` call `validate_wire` did nothing while `parse_payload` stayed public with a doc comment recommending the safer sibling. Worse, my own regression test *demonstrated* the surviving path returning `Ok`, which is a poor thing for a test to certify.\n\nThat is the same correction as the previous round, applied to my own fix — and I had just finished arguing that documentation is not enforcement, then shipped a documented exception to my own admission boundary.\n\n`parse_payload` is now crate-internal (`parse_typed`); `parse_artifact` is the single public way to turn bytes into a wire type. Every A1 wire type implements `WireArtifact`, including future ones with no cross-field rules: those return `Ok(())` explicitly, which states \"this type has no cross-field obligations\" instead of leaving it inferred from a missing impl.\n\n## P0 — digest errors quoted the payload\n\nThis one I introduced by re-export and would not have found. Re-exporting `Digest256` from `o7-run` also re-exported its `Deserialize`, which forwards `DigestFormatError`, whose `Display` quotes the rejected string. A payload whose `contract_digest` is a stolen token produced a serde error containing it — reachable through direct deserialization, without touching the redacted admission path.\n\nDigest fields now use `WireDigest`: the same `Digest256` inside, computing nothing of its own, behind a deserializer that reports shape rather than value. A redacting deserializer, not a parallel model — the distinction FD-2.4 draws when it imports a kind rather than redefining it.\n\n**Deliberately not fixed here:** `o7-run`'s `DigestFormatError` still carries the rejected value for its own callers. That is a pre-existing shape in another crate's public error type, and narrowing it belongs to its own slice rather than to a step-1 wire seed. Flagging rather than silently widening scope — this repo already paid once for mixing an unrelated fix into a docs PR (#122).\n\n## P1 — FD-1.7 was unenforced\n\n`ArtifactRef::validate` checked that `media_type` was non-empty and bounded, but not that a typed artifact declared the media type its kind and version fix. A ref could name `kind: work_order` with `media_type: text/x-diff` and be accepted — and since media type is part of the envelope framing, such a ref denotes a *different reference* than the artifact it claims to point at (FD-2.5). Typed artifacts must now match exactly; evidence blobs and imported A0 objects keep their own concrete types, as FD-1.7 says they do.\n\n## The one thing I pushed back on, and where it landed\n\nBoth reviewers accepted the `interaction_manifest` reading — 64 MiB, because FD-1.4 names \"manifest\" in its evidence-blob line. Codex added the more useful observation: the frozen text is **internally ambiguous** there, since the same section calls \"any typed A1 payload\" a control artifact, and resolving it needs the contract owner rather than either reading asserted as fact.\n\nThat is a real defect in the frozen contract, not in this code. The implementation records its reading in a doc comment and a test; it is worth a §7 supersede if the answer matters before step 2's closure resolution starts charging bytes against it.\n\n73 tests, `cargo fmt --check` and `cargo clippy --all-targets` clean.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","## Review Finding\n\n### P1 — The original envelope-validation bypass remains publicly reachable\n\nThe new `parse_artifact` function correctly invokes `WireArtifact::validate_wire`, but the existing generic `parse_payload` API remains public and is still re-exported from the crate root. Nothing in its type signature prevents callers from supplying `EnvelopeV1`; it only requires `DeserializeOwned`. [crates/o7-a1-contracts/src/json.rsL125-L154](https://github.com/PhysShell/007/blob/2617370bf6c9b16a294477bd9210bafb8478deb5/crates/o7-a1-contracts/src/json.rs#L125-L154) [crates/o7-a1-contracts/src/lib.rsL56-L63](https://github.com/PhysShell/007/blob/2617370bf6c9b16a294477bd9210bafb8478deb5/crates/o7-a1-contracts/src/lib.rs#L56-L63)\n\nThe regression test explicitly demonstrates the surviving failure scenario:\n\n1. Construct a provider envelope without its required `provider_execution_receipt_ref`.\n2. Serialize it.\n3. `parse_payload::(...)` returns `Ok`.\n4. Only the newly introduced `parse_artifact::(...)` rejects it. [crates/o7-a1-contracts/tests/fd1_wire_seed.rsL427-L443](https://github.com/PhysShell/007/blob/2617370bf6c9b16a294477bd9210bafb8478deb5/crates/o7-a1-contracts/tests/fd1_wire_seed.rs#L427-L443)\n\nThat means a caller using the previously advertised parse function continues to obtain a contract-invalid envelope. Documentation saying to “prefer” the new entry point does not make the invalid call unrepresentable, so the confirmed finding that the parse entry point must enforce envelope validation has been supplemented rather than fixed.\n\nA minimal structural fix would make the schema-only helper private or otherwise prevent `EnvelopeV1`/`WireArtifact` types from being passed to it, leaving `parse_artifact` as the only public typed admission path for envelopes.\n\n## Interaction-manifest interpretation\n\nI would **not** raise the 64 MiB `interaction_manifest` choice as a separate P1 in this review. The frozen text is internally ambiguous: it says “any typed A1 payload” receives the control bound, but it also explicitly includes “manifest” in the evidence-blob bound. The implementation records its chosen reading rather than concealing it. [crates/o7-a1-contracts/src/refs.rsL85-L108](https://github.com/PhysShell/007/blob/2617370bf6c9b16a294477bd9210bafb8478deb5/crates/o7-a1-contracts/src/refs.rs#L85-L108) Resolving that contradiction requires contract-owner clarification rather than presenting either interpretation as an unambiguous implementation defect.\n\n## Checks\n\n* ✅ `git cat-file -p 7db92f1b3dc9d7040da074956a0b3f2f200174c8 | rg -n -C 12 'evidence blob|manifest|interaction_manifest|control artifact payload|FD-1.4'`\n* ✅ `rg -n \"parse_payload::|parse_payload\\\\(\" crates/o7-a1-contracts -g '*.rs'`\n* ✅ `rg -n \"ParseError::Invalid|validate_wire|impl WireArtifact\" crates/o7-a1-contracts/src`\n\nNo files were changed, so no commit or follow-up pull request was created.\n\n [View task →](https://chatgpt.com/s/cd_6a79387dca7c81918e0d2e44bb7d8101)","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== current commit and changed files =='\ngit rev-parse HEAD\ngit show --format=fuller --stat --oneline 2617370\ngit diff --name-only 2617370^ 2617370\n\nprintf '%s\\n' '== Rust module outlines =='\nfd -a -t f '\\.rs$' crates/o7-a1-contracts | sort | while IFS= read -r f; do\n echo \"--- $f\"\n ast-grep outline \"$f\" --items all 2>/dev/null || true\ndone\n\nprintf '%s\\n' '== targeted symbols and serde attributes =='\nrg -n -C 8 -P '\\b(Optional|FrozenVersion|Timestamp|ParseError|ArtifactRef|max_size|validate_document|parse_payload|from_(str|slice|value)|serde\\(|Deserialize|Default)\\b' \\\n crates/o7-a1-contracts\n\nprintf '%s\\n' '== relevant changed source =='\nfor f in \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs; do\n if [ -f \"$f\" ]; then\n echo \"--- $f\"\n cat -n \"$f\"\n fi\ndone\n\nprintf '%s\\n' '== contract/task references =='\nif [ -f docs/tasks/a1-v0.md ]; then\n cat -n docs/tasks/a1-v0.md\nfi\nrg -n -i -C 4 'interaction_manifest|evidence.blob|evidence blob|control artifact|FD-1\\.4|64 MiB|1 MiB' \\\n README.md TODO.md docs crates 2>/dev/null || true\n```\n\nLength of output: 135268\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== ArtifactRef construction, deserialization, and validation call sites =='\nrg -n -C 5 -P '\\b(ArtifactRef|parse_artifact|parse_payload|validate_wire|\\.validate\\s*\\()\\b|serde_json::from_(str|slice|value)\\s*::<[^>]*ArtifactRef' \\\n crates docs\n\nprintf '%s\\n' '== exact ArtifactKindV1 classification =='\nsed -n '100,330p' crates/o7-a1-contracts/src/kind.rs\n\nprintf '%s\\n' '== FD-1.7 through FD-1.9 and reference resolution text =='\nsed -n '360,430p' docs/q-deck/a1-authority-contracts.md\nsed -n '290,330p' docs/q-deck/a1-authority-contracts.md\nsed -n '380,400p' docs/q-deck/a1-authority-contracts.md\n\nprintf '%s\\n' '== enforcement-change diff =='\ngit diff --find-renames --find-copies --unified=80 2617370^ 2617370 -- \\\n crates/o7-a1-contracts/src/scalars.rs \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/src/refs.rs \\\n crates/o7-a1-contracts/src/envelope.rs \\\n crates/o7-a1-contracts/src/kind.rs\n\nprintf '%s\\n' '== error formatting implementations =='\nrg -n -C 6 -P '#\\[error\\(|impl\\s+(?:std::fmt::Display|WireArtifact)|map_err|Error::custom|to_string\\(' \\\n crates/o7-a1-contracts/src\n```\n\nLength of output: 117391\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '== Digest256 definition and deserialization errors =='\nrg -n -C 12 -P '\\b(Digest256|DigestFormatError)\\b|impl<.*Deserialize|impl.*Display|#\\[error\\(' \\\n crates/o7-run\n\nprintf '%s\\n' '== direct serde errors for public scalar fields and test coverage =='\nrg -n -C 8 -P 'from_(str|slice|value).*EnvelopeV1|Digest256|contract_digest|payload_digest|prompt_digest|tool_policy_digest' \\\n crates/o7-a1-contracts/tests crates/o7-a1-contracts/src\n\nprintf '%s\\n' '== exact lines for the confirmed reference finding =='\nnl -ba crates/o7-a1-contracts/src/refs.rs | sed -n '42,130p'\nnl -ba crates/o7-a1-contracts/src/envelope.rs | sed -n '185,230p'\nnl -ba docs/q-deck/a1-authority-contracts.md | sed -n '360,400p'\n```\n\nLength of output: 164917\n\n---\n\n

\n\n`@PhysShell` I found two actionable defects.\n\n1. **P0 — Direct serde errors still disclose rejected digest values.** \n `Digest256` is re-exported from `o7-run`, but `DigestFormatError` stores and formats the rejected value in `crates/o7-run/src/event.rs` Lines 34-39. Its `Deserialize` implementation forwards that error at Lines 92-99. Therefore:\n\n ```rust\n serde_json::from_slice::(\n br#\"{\"contract_digest\":\"ghp_secret_...\",\"...\": \"...\"}\"#\n )\n ```\n\n returns a serde error that includes `ghp_secret_...`. `parse_artifact` redacts this path, but the stated guarantee includes direct deserialization. Wrap `Digest256` in an A1-local deserializing type that returns only a redacted shape error, or change the shared `DigestFormatError` formatting so it never includes the rejected value. Add a regression test that formats the direct `EnvelopeV1` serde error for an invalid secret-like digest.\n\n2. **P1 — `ArtifactRef` accepts a typed artifact with an invalid media type.** \n `ArtifactRef::validate()` in `crates/o7-a1-contracts/src/refs.rs` Lines 62-82 checks only that `media_type` is nonempty and bounded. It does not enforce FD-1.7 for typed artifacts. As a result, `parse_artifact::()` accepts an `artifact_refs` entry such as:\n\n ```json\n {\n \"kind\": \"work_order\",\n \"media_type\": \"text/x-diff\",\n \"digest\": \"\",\n \"size\": 1\n }\n ```\n\n FD-1.7 requires `application/vnd.o7.a1.work_order+json; v=1` for this typed artifact. Reject a typed `media_type` that does not match its `kind` and frozen version. Add a regression test through `parse_artifact::()`.\n\nI found no P0/P1 defect in `Optional` or `FrozenVersion` for `EnvelopeV1`. Each optional envelope field has `#[serde(default)]`, and a present `null` invokes `Optional::deserialize()` and fails. I also found no P0/P1 defect in the 64 MiB `interaction_manifest` interpretation. FD-1.4 explicitly includes “manifest” in the evidence-blob examples.\n\n_{You are interacting with an AI system.}","\n> [!TIP]\n> For best results, initiate chat on the files or code changes.\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\ngit show --stat --oneline 2617370\ngit diff 2617370^ 2617370 -- \\\n crates/o7-a1-contracts \\\n AGENTS.md \\\n docs/tasks/a1-v0.md\n\nprintf '\\n--- Changed Rust structure ---\\n'\nfd -e rs . crates/o7-a1-contracts | sort | while IFS= read -r f; do\n ast-grep outline \"$f\" --items all --view compact || true\ndone\n\nprintf '\\n--- Relevant definitions and test assertions ---\\n'\nrg -n -C 4 \\\n 'FrozenVersion|Optional<|BoundedText|impl.*Deserialize.*Timestamp|WireArtifact|parse_artifact|parse_payload|validate_document|ParseError|ScalarError|max_size|interaction_manifest|MAX_CONTROL_ARTIFACT_BYTES|MAX_EVIDENCE_BLOB_BYTES|ArtifactKindV1::ALL|secret|ghp_' \\\n crates/o7-a1-contracts AGENTS.md docs/tasks/a1-v0.md || true\n```\n\nLength of output: 137514\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '%s\\n' '--- Public parsing API ---'\nsed -n '75,165p' crates/o7-a1-contracts/src/json.rs\nsed -n '45,75p' crates/o7-a1-contracts/src/lib.rs\n\nprintf '%s\\n' '--- Parsing and direct deserialization call sites ---'\nrg -n -C 5 --type rust \\\n '\\bparse_payload\\s*(::|<|\$)|\\bparse_artifact\\s*(::|<|\\()|serde_json::from_(str|slice|value)\\s*::?\\s*<' \\\n . \\\n -g '!target/**'\n\nprintf '%s\\n' '--- Envelope construction and validation call sites ---'\nrg -n -C 4 --type rust \\\n '\\bEnvelopeV1\\b|\\bvalidate_wire\\s*\\(|\\.validate\\(\$' \\\n . \\\n -g '!target/**'\n\nprintf '%s\\n' '--- Crate lint configuration ---'\ncat crates/o7-a1-contracts/Cargo.toml\n```\n\nLength of output: 90834\n\n---\n\n

\n\n`@PhysShell` P1: `parse_payload` still permits invalid envelopes to enter the typed model.\n\n`parse_payload` remains public in `crates/o7-a1-contracts/src/json.rs` (Line 150). Its type bound allows `parse_payload::`. It does not call `WireArtifact::validate_wire()`.\n\nThe regression test at `crates/o7-a1-contracts/tests/fd1_wire_seed.rs` (Line 438) explicitly confirms this path. A provider envelope without `provider_execution_receipt_ref` returns `Ok(EnvelopeV1)` through `parse_payload`.\n\nA later caller can use that public API instead of `parse_artifact` and persist, replay, or process an envelope that violates the provider-evidence rule. Documentation cannot enforce the admission boundary.\n\nMake the unchecked typed-deserialization helper private, or otherwise make the public API unable to parse a `WireArtifact` without `validate_wire()`.\n\n---\n\n

✏️ Learnings added — pending approval

\n\n```\nLearnt from: PhysShell\nURL: https://github.com/PhysShell/007/pull/124\n\nTimestamp: 2026-08-10T02:34:03.760Z\nLearning: In the Rust crate `crates/o7-a1-contracts`, per-field A1 wire constraints use `FrozenVersion`, `Optional`, `BoundedText`, and manual `Timestamp` deserialization. Cross-field artifact constraints use the `WireArtifact` trait and `parse_artifact`. Rejected-artifact error strings must not include untrusted JSON keys or values because credential leakage is P0 under `AGENTS.md`.\n```\n\n> These changes will be applied once approved by an admin.\n\n> Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure [review instructions](https://docs.coderabbit.ai/guides/review-instructions). You can manage existing learnings in the [app](https://app.coderabbit.ai/learnings).\n\n

\n\n_{You are interacting with an AI system.}","@coderabbitai review\n\n@codex review\n\nRe-review requested on `2617370`, which is not a touch-up: it moves the wire guarantees out of `validate()` and into the field types, and rewrites how `ParseError` is constructed. A fix that changes the enforcement mechanism deserves the same scrutiny as the code it replaces — the first pass found four defects each, and the last thing this crate needs is a fix that is merely *differently* wrong.\n\nWorth pointing at specifically:\n\n1. **`Optional` and `FrozenVersion`** (`src/scalars.rs`) — the claim is that these have no representation for the values the contract forbids, so no deserialization path can produce one. Is that actually true, including through `serde_json::from_value`, `#[serde(flatten)]`, or a `Default` that skips the deserializer? `Optional` depends on the field carrying `#[serde(default)]` for absent-vs-null to be distinguishable; is there a way to reach it without that?\n2. **Error redaction** (`src/json.rs`) — errors now carry serde's *category* and line/column instead of its message, object members as `*`, array indices verbatim. Does any path still put payload content into a `ParseError`, a `ScalarError`, an `EnvelopeError` or a `RefError`? Line and column are positions in the rejected document — is that itself too much for a P0 credential rule?\n3. **`ArtifactRef::max_size`** — the deliberate divergence from Codex's suggestion is that `interaction_manifest` keeps the 64 MiB evidence bound, because FD-1.4 names \"manifest\" in its evidence-blob line and 4096 `interaction_sequence` entries sit poorly under 1 MiB. That is a reading of an ambiguous line in a frozen contract; a second opinion on it is more useful than agreement.\n\nScope is unchanged: resolver and closure traversal, the campaign reducer, receipt congruence, provider adapters and the human lane are later steps of `docs/tasks/a1-v0.md`, absent by construction.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","All eight findings confirmed and fixed in `2617370`. Opening at step 1 rather than step 8 paid for itself: these are foundation defects, and every one of them would have been buried under CAS traversal and the reducer by the time a step-8 review saw them.\n\nThey divide into one design mistake and one class of leak.\n\n## The design mistake — four findings, one shape\n\n@chatgpt-codex-connector found it from two sides: `parse_payload` never called `EnvelopeV1::validate`, so an envelope with `envelope_version: 2` parsed `Ok`; and `serde_json::from_str::` skipped `validate_document` entirely, so `\"causation_id\": null` was accepted as absent. The `producer_adapter_version` / `model_identity` bounds had the same shape, and @coderabbitai found the fourth instance: `Timestamp` derived `Deserialize`, so its 64-byte bound was dead for every value that arrives over the wire — which is the only way values arrive.\n\nMy test suite passed throughout, because every test called `validate()` by hand. That is exactly the caller behaviour the defect assumed, so the suite was confirming the assumption rather than testing it.\n\nThe fix is not to add `validate()` calls in more places. Every rule a single field can establish now lives in that field's type:\n\n| | |\n|---|---|\n| `FrozenVersion<1>` | an unsupported version has no representation |\n| `Optional` | no representation for `null` — `Option` silently accepts the one encoding FD-1.3 forbids |\n| `BoundedText` | §3.0's 128-byte adapter version and 256-byte model identity |\n| `Timestamp` | manual `Deserialize`, per the suggested fix |\n\nWhat remains for validation is only what relates two fields to each other, and `parse_artifact` runs it through a `WireArtifact` trait instead of trusting each caller. So my claim in the PR body that one pre-deserialization pass made new schemas inherit the policy was half right — the inheritance is real, but it had to come from the types, not from the pass.\n\n## The leak\n\n`ParseError` copied serde's `Display` text and JSON object member names into error strings, so a payload `{\"ghp_…\":\"…\"}` put that key in a message and a rejected enum value went in verbatim. AGENTS.md makes credential leakage a P0 and a rejected artifact is untrusted input that may contain anything, so this is the more serious of the two.\n\nErrors now report shape and position only: serde's error **category** and line/column rather than its message; object members as `*` in paths; array indices kept, because a position is not content. `ScalarError` no longer echoes the rejected `CommitId` either. Two regression tests assert that no secret-like key or value reaches a formatted error.\n\n## Bounds\n\n`ArtifactRef::max_size` derived the envelope allowance from `MAX_EVIDENCE_BLOB_BYTES`, so it equalled 1 MiB only by coincidence of two unrelated constants — now `MAX_CONTROL_ARTIFACT_BYTES * 2`, with the tests that branch previously lacked. Typed non-envelope payloads were inheriting the 64 MiB evidence bound instead of the 1 MiB control bound, so a ref could declare a 64 MiB execution receipt and be charged and read at sixty-four times what FD-1.4 permits.\n\n**One deliberate divergence, flagged rather than silently taken:** `interaction_manifest` keeps the 64 MiB evidence bound. Codex grouped it with the typed payloads, but FD-1.4 names \"manifest\" explicitly in its evidence-blob line, and 4096 permitted `interaction_sequence` entries sit uncomfortably against a 1 MiB ceiling. That is a reading of an ambiguous line in the frozen contract, not a preference — it is recorded in a doc comment and a test so it is visible rather than implied by an absent branch. Worth a second opinion.\n\n`ArtifactKindV1` gained an exhaustive `ALL` and the spelling test now covers all 39 variants instead of 21.\n\n71 tests, `cargo fmt --check` and `cargo clippy --all-targets` clean.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","**Actionable comments posted: 4**\n\n

🤖 Prompt for all review comments with AI agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nInline comments:\nIn `@crates/o7-a1-contracts/src/json.rs`:\n- Around line 86-88: Replace the serde_json error text in the deserialization\npath with fixed schema-mismatch wording instead of propagating e.to_string(). In\nwalk, ensure ExplicitNull, DepthExceeded, ArrayTooLong, and StringTooLong errors\nuse fixed path segments rather than untrusted object keys or payload values, and\nadd regression tests asserting secret-like keys and values are absent from\nformatted ParseError messages.\n\nIn `@crates/o7-a1-contracts/src/kind.rs`:\n- Around line 264-279: Extend the serde spelling test to cover every\nArtifactKindV1 variant. Add an exhaustive ArtifactKindV1::ALL constant,\nmirroring MessageKindV1::ALL with an array length that requires updates when\nvariants change, then iterate it in the_serde_spelling_is_the_framed_name and\ncompare serde output with kind.name().\n\nIn `@crates/o7-a1-contracts/src/refs.rs`:\n- Around line 91-98: Update ArtifactRef::max_size so the envelope-bearing branch\nderives its allowance from MAX_CONTROL_ARTIFACT_BYTES, yielding the documented 2\n* MAX_CONTROL_ARTIFACT_BYTES bound. Add coverage for this branch with an\nenvelope-bearing WorkOrder ref that validates at the bound and returns\nSizeAboveBound at bound plus one.\n\nIn `@crates/o7-a1-contracts/src/scalars.rs`:\n- Around line 167-183: Replace the derived Deserialize implementation for\nTimestamp with a manual impl that deserializes the raw String and passes it\nthrough Timestamp::parse, mapping ScalarError via serde::de::Error::custom.\nPreserve the existing Serialize, derives, and 64-byte validation behavior.\n```\n\n

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: Path: .coderabbit.yaml\n\n**Review profile**: QUIET\n\n**Plan**: Pro Plus\n\n**Run ID**: `4a934f00-6715-47cf-8dfa-44b42084ece7`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 69ccef5db148b21f5e671d68761fce383a34b407 and b2ba165f16b6ea092b6c305fde2c85893fc787a5.\n\n

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⛔ Files ignored due to path filters (1)

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📒 Files selected for processing (13)

\n\n* `Cargo.toml`\n* `TODO.md`\n* `crates/o7-a1-contracts/Cargo.toml`\n* `crates/o7-a1-contracts/src/bounds.rs`\n* `crates/o7-a1-contracts/src/envelope.rs`\n* `crates/o7-a1-contracts/src/framing.rs`\n* `crates/o7-a1-contracts/src/json.rs`\n* `crates/o7-a1-contracts/src/kind.rs`\n* `crates/o7-a1-contracts/src/lib.rs`\n* `crates/o7-a1-contracts/src/refs.rs`\n* `crates/o7-a1-contracts/src/scalars.rs`\n* `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n* `docs/tasks/a1-v0.md`\n\n

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📜 Review details

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⏰ Context from checks skipped due to timeout. (1)

\n\n* GitHub Check: worker gate\n\n

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🧰 Additional context used

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📓 Path-based instructions (8)

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**/*.{rs,toml,json,yaml,yml,md}

\n\n\n**📄 CodeRabbit inference engine (AGENTS.md)**\n\n> Prevent credential leakage: never place credentials, OAuth/session artifacts, tokens, environment dumps, or agent output that may contain secrets into repository files, logs, serialized structs, run records, subprocess environments, or error strings. For `o7 invoke --engine arliai`, handle `ARLIAI_API_KEY` only as a function-local value, pass only a borrowed trimmed view to HTTP, strip it from provider subprocesses, and fail closed when TRACE logging is enabled.\n\nFiles:\n- `TODO.md`\n- `Cargo.toml`\n- `docs/tasks/a1-v0.md`\n- `crates/o7-a1-contracts/Cargo.toml`\n- `crates/o7-a1-contracts/src/lib.rs`\n- `crates/o7-a1-contracts/src/refs.rs`\n- `crates/o7-a1-contracts/src/framing.rs`\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- `crates/o7-a1-contracts/src/json.rs`\n- `crates/o7-a1-contracts/src/envelope.rs`\n- `crates/o7-a1-contracts/src/bounds.rs`\n- `crates/o7-a1-contracts/src/kind.rs`\n- `crates/o7-a1-contracts/src/scalars.rs`\n\n

**/*.{rs,json,yaml,yml,md}

\n\n\n**📄 CodeRabbit inference engine (AGENTS.md)**\n\n> Preserve backward compatibility and completeness of the canonical `runs///` run record, including ensuring partially failed runs cannot produce records that appear complete.\n\nFiles:\n- `TODO.md`\n- `docs/tasks/a1-v0.md`\n- `crates/o7-a1-contracts/src/lib.rs`\n- `crates/o7-a1-contracts/src/refs.rs`\n- `crates/o7-a1-contracts/src/framing.rs`\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- `crates/o7-a1-contracts/src/json.rs`\n- `crates/o7-a1-contracts/src/envelope.rs`\n- `crates/o7-a1-contracts/src/bounds.rs`\n- `crates/o7-a1-contracts/src/kind.rs`\n- `crates/o7-a1-contracts/src/scalars.rs`\n\n

**/*

\n\n\n**📄 CodeRabbit inference engine (AGENTS.md)**\n\n> `**/*`: Review only P0 and P1 failures; do not raise style, naming, taste, formatter, Clippy, or micro-optimization concerns, and prefer a concrete failure scenario with inputs and incorrect behavior.\n> Do not diagnose and repair the same failure in one run when the run is only requested to explain a failure; distinguish diagnostics from mutation, likely boundaries from root causes, missing evidence from negative results, and partial results from complete success.\n> Do not enable `pedantic`, `nursery`, or similar deferred lint groups wholesale; adopt them incrementally per slice against a baseline.\n> Ground factual claims about existing code or mechanisms in the authoritative artifact, exact revision, and specific property establishing the claim; distinguish what the artifact states from inferred conclusions and re-check claims when the governing artifact changes.\n> Do not spend review effort on checks already enforced mechanically by CI, including formatting, Clippy warnings, workspace compilation, cargo-deny policies, and workspace-member test suites, unless a change adds a new exclusion or lint allowance. Any new workspace test exclusion must name the dedicated workflow owning that package; exclusions for unrelated reasons are P0 findings.\n\nFiles:\n- `TODO.md`\n- `Cargo.toml`\n- `docs/tasks/a1-v0.md`\n- `crates/o7-a1-contracts/Cargo.toml`\n- `crates/o7-a1-contracts/src/lib.rs`\n- `crates/o7-a1-contracts/src/refs.rs`\n- `crates/o7-a1-contracts/src/framing.rs`\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- `crates/o7-a1-contracts/src/json.rs`\n- `crates/o7-a1-contracts/src/envelope.rs`\n- `crates/o7-a1-contracts/src/bounds.rs`\n- `crates/o7-a1-contracts/src/kind.rs`\n- `crates/o7-a1-contracts/src/scalars.rs`\n\n

\n\n\n**⚙️ CodeRabbit configuration file**\n\n> `**`: Treat AGENTS.md and the configured guideline documents as binding.\n> \n> Review the complete pull request, its linked issue, and related or\n> stacked pull requests before making localized comments.\n> \n> Report P0 and P1 defects only.\n> \n> Do not repeat findings already enforced mechanically by cargo fmt,\n> clippy, cargo check, cargo-deny, or the repository test workflows,\n> unless the change weakens, bypasses, excludes, or misconfigures that\n> enforcement.\n> \n> Every finding must contain a concrete failure scenario: relevant\n> input, state, interleaving, or repository condition followed by the\n> resulting incorrect behavior.\n> \n> Do not treat successful compilation, passing local tests, or a\n> resolved CodeRabbit thread as proof that the repository's independent\n> acceptance gate has passed.\n> \n\nFiles:\n- `TODO.md`\n- `Cargo.toml`\n- `docs/tasks/a1-v0.md`\n- `crates/o7-a1-contracts/Cargo.toml`\n- `crates/o7-a1-contracts/src/lib.rs`\n- `crates/o7-a1-contracts/src/refs.rs`\n- `crates/o7-a1-contracts/src/framing.rs`\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- `crates/o7-a1-contracts/src/json.rs`\n- `crates/o7-a1-contracts/src/envelope.rs`\n- `crates/o7-a1-contracts/src/bounds.rs`\n- `crates/o7-a1-contracts/src/kind.rs`\n- `crates/o7-a1-contracts/src/scalars.rs`\n\n

**/{Cargo.toml,Cargo.lock,deny.toml}

\n\n\n**⚙️ CodeRabbit configuration file**\n\n> `**/{Cargo.toml,Cargo.lock,deny.toml}`: Review dependency and workspace changes as capability changes, not\n> routine manifest edits. This covers the workspace root, member and\n> fuzz crate manifests, the lockfile, and the cargo-deny policy.\n> \n> Check for:\n> - new default features that add network, process, filesystem, dynamic\n> loading, serialization, or unsafe-code capability;\n> - workspace members silently disappearing from normal CI coverage;\n> - new exclusions without a dedicated workflow that owns the package;\n> - weakened lint levels or newly permitted unsafe code;\n> - path/version inconsistencies between internal workspace crates;\n> - dependency changes not reflected in Cargo.lock and deny policy.\n> \n> Do not comment merely on version style or formatting.\n> \n\nFiles:\n- `Cargo.toml`\n- `crates/o7-a1-contracts/Cargo.toml`\n\n

docs/**

\n\n\n**⚙️ CodeRabbit configuration file**\n\n> `docs/**`: Review documentation for parity with implemented behavior and current\n> repository invariants.\n> \n> Flag:\n> - security or isolation claims stronger than the implementation;\n> - plans or deferred work written as already implemented;\n> - obsolete status, commit, phase, or acceptance claims;\n> - changed protocols or record formats without migration implications;\n> - contradictions with AGENTS.md, README.md, public governance,\n> security-layers, or verification documentation.\n> \n> Do not spend review comments on prose preferences unless wording\n> changes the technical claim.\n> \n\nFiles:\n- `docs/tasks/a1-v0.md`\n\n

**/*.rs

\n\n\n**📄 CodeRabbit inference engine (AGENTS.md)**\n\n> `**/*.rs`: Preserve verdict semantics: `PASS`, `FAIL`, and `ERROR` must remain distinct; `FAIL` means the gate ran and the target failed, while `ERROR` means no trustworthy answer was obtained. Exit successfully only for `PASS`; all other verdicts must return a non-zero process exit code.\n> Any new `#[allow(...)]` for a restriction lint must state the invariant that makes the exception sound; do not add an allowance merely because Clippy is noisy.\n> Treat changes to slicing or indexing logic in `o7::judge::extract_json_array`, `o7::judge::parse_findings_json`, or `o7::gate::GateManifest::parse` as P0 changes and extend the corresponding fuzzing or Kani panic-freedom harness in the same pull request.\n> Do not collapse missing evidence, skipped required gates, or partial pagination results into success: a skipped required gate is `BLOCKED` unless it has a pre-declared `waive_reason`, and incomplete results must not be treated as complete.\n\nFiles:\n- `crates/o7-a1-contracts/src/lib.rs`\n- `crates/o7-a1-contracts/src/refs.rs`\n- `crates/o7-a1-contracts/src/framing.rs`\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n- `crates/o7-a1-contracts/src/json.rs`\n- `crates/o7-a1-contracts/src/envelope.rs`\n- `crates/o7-a1-contracts/src/bounds.rs`\n- `crates/o7-a1-contracts/src/kind.rs`\n- `crates/o7-a1-contracts/src/scalars.rs`\n\n

**/tests/**

\n\n\n**⚙️ CodeRabbit configuration file**\n\n> `**/tests/**`: Require tests to demonstrate the externally observable contract, not\n> private implementation details. This applies to root integration\n> tests and to every workspace crate's own test directory.\n> \n> For behavior changes, expect coverage of:\n> - the successful path;\n> - the concrete regression or failure scenario;\n> - cancellation, malformed input, and partial-state behavior where\n> relevant;\n> - deterministic replay or repeated execution;\n> - negative assertions proving that forbidden side effects did not\n> occur.\n> \n> Do not request tests merely to increase line coverage.\n> \n\nFiles:\n- `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`\n\n

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🧠 Learnings (1)

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📚 Learning: 2026-08-05T00:43:14.549Z

\n\n```\nLearnt from: PhysShell\nRepo: PhysShell/007 PR: 104\nFile: docs/tasks/sandboy-a1-vertical-b.md:0-0\nTimestamp: 2026-08-05T00:43:14.549Z\nLearning: For documentation describing the Sandboy `probe` and its capability gate, clarify that probe exit code 0 only indicates that a diagnostic report was produced; it does not prove that the host supports all required capabilities. The fail-closed gate, such as `run_gate.py`, must parse the fixed JSON report and reject unavailable or partial capabilities, missing required fields, malformed JSON, or empty output.\n```\n\n**Applied to files:**\n- `docs/tasks/a1-v0.md`\n\n

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🔇 Additional comments (14)

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crates/o7-a1-contracts/src/lib.rs (1)
\n\n`48-65`: LGTM!\n\n\n\n
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crates/o7-a1-contracts/src/scalars.rs (1)
\n\n`39-56`: LGTM!\n\n\n\nAlso applies to: 73-100, 122-160\n\n\n\n
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crates/o7-a1-contracts/src/kind.rs (1)
\n\n`17-46`: LGTM!\n\n\n\nAlso applies to: 48-117, 119-248, 324-339\n\n\n\n
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crates/o7-a1-contracts/src/bounds.rs (1)
\n\n`17-45`: LGTM!\n\n\n\nAlso applies to: 52-136, 146-203\n\n\n\n
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crates/o7-a1-contracts/src/framing.rs (2)
\n\n`29-39`: LGTM!\n\n\n\nAlso applies to: 49-90, 96-148\n\n\n\n---\n\n`41-47`: _🗄️ Data Integrity & Integration_\n\n**No change needed.**\n\nThe `o7-run` framing helper uses the same `(bytes.len() as u64).to_le_bytes()` prefix, followed by the bytes.\n\n\n\n
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crates/o7-a1-contracts/src/refs.rs (1)
\n\n`32-40`: LGTM!\n\n\n\nAlso applies to: 49-83, 100-109, 129-187\n\n\n\n
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crates/o7-a1-contracts/src/envelope.rs (2)
\n\n`63-95`: LGTM!\n\n\n\nAlso applies to: 105-125, 146-201, 207-217\n\n\n\n---\n\n`126-137`: _🗄️ Data Integrity & Integration_\n\n**No change needed.**\n\n`docs/q-deck/a1-authority-contracts.md` explicitly defines envelope framing as `provider_execution_receipt_ref digest` and `artifact_refs` with `artifact_kind name`, `media_type`, `digest`, and `size`; the implementation matches that frozen framing.\n\n\n\t\t\t\t> Likely an incorrect or invalid review comment.\n\n\n\n
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Cargo.toml (1)
\n\n`7-7`: LGTM!\n\n\n\n
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crates/o7-a1-contracts/tests/fd1_wire_seed.rs (1)
\n\n`15-18`: LGTM!\n\n\n\nAlso applies to: 29-90, 97-306, 314-408\n\n\n\n
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TODO.md (1)
\n\n`40-41`: LGTM!\n\n\n\n
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docs/tasks/a1-v0.md (1)
\n\n`7-32`: LGTM!\n\n\n\nAlso applies to: 34-93\n\n\n\n
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crates/o7-a1-contracts/Cargo.toml (1)
\n\n`15-19`: _🗄️ Data Integrity & Integration_\n\n**No change needed.**\n\n`Cargo.lock` includes the `o7-a1-contracts` package entry, so `--locked` workflows have the package represented.\n\n\n\n
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\n\n","_🗄️ Data Integrity & Integration_ | _🟠 Major_ | _⚡ Quick win_\n\n**`Timestamp` bound is bypassed on deserialization.**\n\n`Id`, `Text`, and `CommitId` each implement `Deserialize` manually so the wire value goes through `parse`. `Timestamp` derives `Deserialize` with `#[serde(transparent)]`, so the derived impl deserializes a plain `String` and never calls `Timestamp::parse`.\n\nFailure scenario: a `WorkOrder` envelope whose `created_at` is a 60000-byte ASCII string. The value is under the global `MAX_STRING_BYTES` document limit, so `parse_payload::` accepts it and constructs a `Timestamp` that violates the 64-byte bound documented on line 173. `Timestamp::parse` is then dead for every value that arrives over the wire, which is the only way values arrive.\n\n

Proposed fix

\n\n```diff\n-#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]\n+#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize)]\n #[serde(transparent)]\n pub struct Timestamp(String);\n```\n\n```rust\nimpl<'de> Deserialize<'de> for Timestamp {\n fn deserialize(deserializer: D) -> Result\n where\n D: serde::Deserializer<'de>,\n {\n let raw = String::deserialize(deserializer)?;\n Self::parse(&raw).map_err(serde::de::Error::custom)\n }\n}\n```\n

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📝 Committable suggestion

\n\n> ‼️ **IMPORTANT**\n> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.\n\n```suggestion\n#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize)]\n#[serde(transparent)]\npub struct Timestamp(String);\n\nimpl Timestamp {\n /// # Errors\n /// [`ScalarError::TextTooLong`] above a generous fixed bound; the value is\n /// otherwise opaque.\n pub fn parse(s: &str) -> Result {\n if s.len() > 64 {\n return Err(ScalarError::TextTooLong {\n actual: s.len(),\n max: 64,\n });\n }\n Ok(Self(s.to_owned()))\n }\n}\n\nimpl<'de> Deserialize<'de> for Timestamp {\n fn deserialize(deserializer: D) -> Result\n where\n D: serde::Deserializer<'de>,\n {\n let raw = String::deserialize(deserializer)?;\n Self::parse(&raw).map_err(serde::de::Error::custom)\n }\n}\n```\n\n

\n\n\n\n

🤖 Prompt for AI Agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/o7-a1-contracts/src/scalars.rs` around lines 167 - 183, Replace the\nderived Deserialize implementation for Timestamp with a manual impl that\ndeserializes the raw String and passes it through Timestamp::parse, mapping\nScalarError via serde::de::Error::custom. Preserve the existing Serialize,\nderives, and 64-byte validation behavior.\n```\n\n

\n\n\n\n\n\n\n\n\n\n✅ Addressed in commits d5823a9 to 219367d","_🎯 Functional Correctness_ | _🟠 Major_ | _⚡ Quick win_\n\n**The envelope-bearing bound is derived from the wrong constant.**\n\nThe doc comment states the control-artifact bound applies to the payload half and the envelope is allowed on top. The code writes that envelope allowance as `MAX_EVIDENCE_BLOB_BYTES.min(1 << 20)`. Today that evaluates to 1 MiB only because `MAX_EVIDENCE_BLOB_BYTES` is 64 MiB and the literal happens to equal `MAX_CONTROL_ARTIFACT_BYTES`. The envelope allowance has no relationship to the evidence-blob bound.\n\nFailure scenario: FD-1.4 is retuned and `MAX_EVIDENCE_BLOB_BYTES` drops to 512 KiB in `crates/o7-a1-contracts/src/bounds.rs`. The envelope allowance silently becomes 512 KiB, so a `work_order` ref declaring 1 MiB payload plus 600 KiB stored envelope bytes is rejected with `SizeAboveBound` even though no control-artifact bound was exceeded. In the other direction, raising `MAX_CONTROL_ARTIFACT_BYTES` leaves the magic `1 << 20` allowance behind.\n\nThe envelope branch of `max_size` is also untested: `an_evidence_blob_above_its_bound_is_refused` exercises only the `else` branch, so this arithmetic has no coverage.\n\n

Proposed fix

\n\n```diff\n fn max_size(&self) -> u64 {\n if self.kind.is_envelope_bearing() {\n- MAX_CONTROL_ARTIFACT_BYTES.saturating_add(MAX_EVIDENCE_BLOB_BYTES.min(1 << 20))\n+ // FD-1.8: size covers payload + envelope, each bounded by the\n+ // control-artifact maximum.\n+ MAX_CONTROL_ARTIFACT_BYTES.saturating_mul(2)\n } else {\n MAX_EVIDENCE_BLOB_BYTES\n }\n }\n```\n\nAdd the missing boundary test:\n\n```rust\n#[test]\nfn an_envelope_bearing_ref_above_its_bound_is_refused() {\n let max = 2 * MAX_CONTROL_ARTIFACT_BYTES;\n let at_bound = ArtifactRef {\n kind: ArtifactKindV1::WorkOrder,\n media_type: typed_media_type(ArtifactKindV1::WorkOrder, 1),\n digest: digest(),\n size: max,\n };\n assert!(at_bound.validate().is_ok());\n let over = ArtifactRef { size: max + 1, ..at_bound };\n assert!(matches!(\n over.validate(),\n Err(RefError::SizeAboveBound { .. })\n ));\n}\n```\n

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📝 Committable suggestion

\n\n\n\n

🤖 Prompt for AI Agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/o7-a1-contracts/src/refs.rs` around lines 91 - 98, Update\nArtifactRef::max_size so the envelope-bearing branch derives its allowance from\nMAX_CONTROL_ARTIFACT_BYTES, yielding the documented 2 *\nMAX_CONTROL_ARTIFACT_BYTES bound. Add coverage for this branch with an\nenvelope-bearing WorkOrder ref that validates at the bound and returns\nSizeAboveBound at bound plus one.\n```\n\n

\n\n\n\n\n\n\n\n\n\n✅ Addressed in commits d5823a9 to 219367d",234,"_🗄️ Data Integrity & Integration_ | _🟠 Major_ | _⚡ Quick win_\n\n**The serde-spelling test does not cover `ArtifactKindV1`.**\n\n`the_serde_spelling_is_the_framed_name` iterates `MessageKindV1::ALL` and the four `ProducerRole` variants. `ArtifactKindV1` has 39 variants and is excluded. `imported_a0_kinds_keep_a0_spellings` covers only the 10 imported A0 kinds, and `a_message_kind_and_its_artifact_kind_share_a_name` covers only the 11 message kinds. The 4 typed non-envelope kinds and the 14 evidence-blob kinds are covered by neither.\n\nFailure scenario: a later edit renames `Self::CiObservation => \"ci_observation\"` to `\"ci_observations\"` in `name()` while `rename_all = \"snake_case\"` keeps emitting `\"ci_observation\"`. A peer then writes `\"ci_observation\"` in an `ArtifactRef.kind`, while `framed_digest` frames `\"ci_observations\"` (`crates/o7-a1-contracts/src/envelope.rs` line 133) and `typed_media_type` emits `application/vnd.o7.a1.ci_observations+json` (`crates/o7-a1-contracts/src/refs.rs` line 39). Two conforming implementations then compute different envelope digests, and no test fails.\n\n

Proposed fix

\n\nAdd an exhaustive `ALL` to `ArtifactKindV1` (mirroring `MessageKindV1::ALL`, so a new variant forces a compile-time update of the array length) and assert over it:\n\n```diff\n for role in [\n ProducerRole::Controller,\n ProducerRole::Coder,\n ProducerRole::Reviewer,\n ProducerRole::Human,\n ] {\n let json = serde_json::to_string(&role).unwrap_or_default();\n assert_eq!(json, format!(\"\\\"{}\\\"\", role.name()));\n }\n+ for kind in ArtifactKindV1::ALL {\n+ let json = serde_json::to_string(&kind).unwrap_or_default();\n+ assert_eq!(json, format!(\"\\\"{}\\\"\", kind.name()));\n+ }\n }\n```\n

\n\n

🤖 Prompt for AI Agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/o7-a1-contracts/src/kind.rs` around lines 264 - 279, Extend the serde\nspelling test to cover every ArtifactKindV1 variant. Add an exhaustive\nArtifactKindV1::ALL constant, mirroring MessageKindV1::ALL with an array length\nthat requires updates when variants change, then iterate it in\nthe_serde_spelling_is_the_framed_name and compare serde output with kind.name().\n```\n\n

\n\n\n\n\n\n\n\n_Source: Path instructions_\n\n\n\n✅ Addressed in commits d5823a9 to 219367d",408,"_🔒 Security & Privacy_ | _🟠 Major_ | _⚡ Quick win_\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\n# Inspect every ParseError construction path. Expect no serde diagnostic text\n# or untrusted JSON object key to be copied into an error string.\nrg -n -C 4 'e\\.to_string\$\$|SchemaMismatch|format!\$\"\\{path\\}\\.\\{k\\}\"\$|ExplicitNull|DepthExceeded|ArrayTooLong|StringTooLong' \\\n crates/o7-a1-contracts/src/json.rs \\\n crates/o7-a1-contracts/tests/fd1_wire_seed.rs\n```\n\nRepository: PhysShell/007\n\nLength of output: 11189\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho \"== candidate files ==\"\nfd -a 'json.rs|fd1_wire_seed.rs'\necho\n\necho \"== json.rs outline ==\"\nast-grep outline crates/o7-a1-contracts/src/json.rs --view expanded || true\necho\n\necho \"== json.rs relevant source ==\"\ncat -n crates/o7-a1-contracts/src/json.rs | sed -n '1,180p'\necho\n\necho \"== contracts structs/enums around message_kind / controller envelope ==\"\nrg -n -C 4 'enum .*Kind|message_kind|enum .*Controller|EnvelopeV1|Controller' crates/o7-a1-contracts/src crates/o7-a1-contracts/tests/fd1_wire_seed.rs\necho\n\necho \"== serde_json version ==\"\nrg -n 'serde_json' Cargo.toml Cargo.lock crates/o7-a1-contracts/Cargo.toml --glob 'Cargo.toml' --glob 'Cargo.lock'\n```\n\nRepository: PhysShell/007\n\nLength of output: 29352\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/zsh\nset -euo pipefail\n\necho \"== exact serde_json versions ==\"\npython3 - <<'PY'\nimport json, re\ndata=json.load(open('Cargo.lock'))\nfor pkg in data['package']:\n if pkg.get('name') in ('serde_json','serde'):\n print(pkg['name'], pkg.get('version'), pkg.get('source'))\nPY\n\necho\necho \"== runtime behavioral probe using installed crates if available ==\"\ntmp=\"$(mktemp -d)\"\ncat > \"$tmp/src/main.rs\" <<'RS'\nuse serde::{Deserialize, Serialize};\n\nfn main() {\n let mut value: serde_json::Value = serde_json::from_str(r#\"{\"message_kind\":\"future_kind\",\"causation_id\":null}\"#).unwrap();\n if let Some(map) = value.as_object_mut() {\n map.insert(\"ghp_example_secret\".to_owned(), serde_json::Value::String(\"fake_secret\".into()));\n }\n #[derive(Debug, Serialize, Deserialize, PartialEq)]\n #[serde(deny_unknown_fields)]\n struct EnvelopeV1 {\n message_kind: MessageKindV1,\n causation_id: Option,\n }\n #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq)]\n enum MessageKindV1 { WorkOrder, CoderReport }\n\n match serde_json::from_value::(value.clone()) {\n Err(e) => {\n eprintln!(\"SchemaMismatch message is {:?}\", e.to_string());\n if e.to_string().contains(\"ghp_example_secret\") {\n std::process::exit(0);\n } else {\n std::process::exit(2);\n }\n }\n Ok(_) => {\n eprintln!(\"unexpected success\");\n std::process::exit(2);\n }\n }\n}\nRS\ncat > \"$tmp/Cargo.toml\" <<'TOML'\n[package]\nname = \"probe\"\nversion = \"0.0.0\"\nedition = \"2021\"\n\n[dependencies]\nserde = { version = \"1\", features = [\"derive\"] }\nserde_json = \"1\"\nTOML\n\nif command -v cargo >/dev/null 2>&1; then\n cd \"$tmp\"\n cargo build --quiet --config build.rustflags='-Dall_warnings' 2>/tmp/probe-build.log || true\n if [ -f target/debug/probe ]; then\n target/debug/probe\n else\n echo \"binary not available\"\n cat /tmp/probe-build.log\n fi\nelse\n echo \"cargo not available\"\nfi\n```\n\nRepository: PhysShell/007\n\nLength of output: 788\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho \"== Cargo.lock serde sections ==\"\nsed -n '132,142p;1520,1542p' Cargo.lock\n\necho\necho \"== inspect git lock format ==\"\nfile Cargo.lock\nhexdump -C Cargo.lock | head -n 5\nif [ -s Cargo.lock ]; then jq '.package[] | select(.name==\"serde_json\" or .name==\"serde\")' Cargo.lock 2>/dev/null || true; fi\n```\n\nRepository: PhysShell/007\n\nLength of output: 965\n\n---\n\n🌐 Web query:\n\n`serde_json 1.0.150 Display error variant unknown field enum variant message contains actual value`\n\n💡 Result:\n\nIn serde_json, error messages for \"unknown field\" and \"unknown variant\" are explicitly designed to include the actual value that caused the error [1]. When deserializing, if the input contains a field or enum variant that is not recognized, serde_json generates an error message that explicitly mentions the incorrect name provided by the user [2][1]. The standard format for these errors is typically: - For unknown fields: \"unknown field `{field}`, expected one of `{expected}`\" [3][1]. - For unknown variants: \"unknown variant `{variant}`, expected one of `{expected}`\" [4]. These error messages are produced by the Serde framework's deserialization logic [2][1]. The actual unrecognized value is captured and formatted into the error string, followed by a list of expected valid alternatives if available [1]. If there are no expected fields or variants, the error message indicates that no such options exist [1]. Because these messages are generated internally by the Serde deserializer, they cannot be easily customized or suppressed directly through standard configuration without implementing custom deserialization logic or intercepting and processing the resulting Error object [4][3]. If you require specific error handling (e.g., to redact the actual value for security reasons or to provide a different format), you must catch the `serde_json::Error` and transform it into your desired format [4].\n\nCitations:\n\n- 1: https://codebrowser.dev/tokio/crates/serde-1.0.193/src/de/mod.rs.html\n- 2: https://github.com/serde-rs/serde/blob/d1205393109c474201985907ae0077afa87bc81d/serde/src/de/mod.rs\n- 3: https://github.com/serde-rs/json/issues/1190\n- 4: https://github.com/serde-rs/json/issues/759\n\n---\n\n\n\n

\n\n**Remove untrusted payload text from `ParseError`.**\n\n`ParseError::SchemaMismatch` copies `serde_json::Error` text directly, and `walk` copies JSON object member names into `ExplicitNull`, `DepthExceeded`, `ArrayTooLong`, and `StringTooLong` fields. A rejected payload such as `{\"ghp_example_secret\":\"fake_secret\"}` can store that secret-like key in `schema mismatch: unknown field ...`; a rejected payload such as `{\"message_kind\":\"future_kind\"}` can store that enum value in the schema error. Use fixed schema-error text and fixed object/array path segments, and add regression tests that assert secret-like values and keys do not appear in formatted `ParseError` messages.\n\n

🤖 Prompt for AI Agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/o7-a1-contracts/src/json.rs` around lines 86 - 88, Replace the\nserde_json error text in the deserialization path with fixed schema-mismatch\nwording instead of propagating e.to_string(). In walk, ensure ExplicitNull,\nDepthExceeded, ArrayTooLong, and StringTooLong errors use fixed path segments\nrather than untrusted object keys or payload values, and add regression tests\nasserting secret-like keys and values are absent from formatted ParseError\nmessages.\n```\n\n

\n\n\n\n\n\n\n\n_Source: Coding guidelines_\n\n\n\n✅ Addressed in commits d5823a9 to 219367d","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `b2ba165f16`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce envelope-specific text limits**\n\nThese fields use the generic `Text` deserializer, which permits 65,536 bytes, while the frozen envelope schema limits `producer_adapter_version` to 128 bytes and `model_identity` to 256 bytes. Since `EnvelopeV1::validate` only checks provider-field presence, an otherwise valid provider envelope with a 129-byte adapter version or 257-byte model identity passes both parsing and validation, producing a wire artifact that stricter implementations must reject.\n\nUseful? React with 👍 / 👎.","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Apply the control limit to typed non-envelope references**\n\nFor `provider_execution_receipt`, `interaction_manifest`, `scope_contract`, and `campaign_event_payload`, this branch returns the 64 MiB evidence-blob limit even though these are typed A1 payloads subject to the 1 MiB control-artifact maximum. Consequently, a ref declaring a 64 MiB receipt passes `ArtifactRef::validate`, allowing closure resolution to read far beyond the typed-object bound instead of rejecting it from the declared size before I/O.\n\nUseful? React with 👍 / 👎.",232,"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prevent raw deserialization from bypassing document checks**\n\nBecause the exported wire type implements `Deserialize`, a caller can use `serde_json::from_str::` directly and bypass `validate_document`; for example, `\"causation_id\": null` is then accepted as `None`, and the global depth, array, string, BOM, and payload-byte checks never run. This leaves exactly the alternate path to a typed schema that the pre-deserialization pass is meant to rule out.\n\nUseful? React with 👍 / 👎.","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Run envelope validation before returning parsed wire data**\n\nParsing an envelope with `envelope_version: 2` or `message_kind_version: 7` returns `Ok(EnvelopeV1)` because this path only performs Serde deserialization; the version checks in `EnvelopeV1::validate` are not invoked. The same gap admits provider envelopes with missing receipt fields and invalid refs, so callers using the advertised parse entry point can treat a best-effort parse as schema-valid unless every caller remembers a separate validation step.\n\nUseful? React with 👍 / 👎.","\n\n`@PhysShell` I will review pull request `#124`. I will report only actionable P0/P1 defects within the stated scope.\n\n

✅ Action performed

\n\nReview finished.\n\n> Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.\n\n

","@coderabbitai review\n\nOne-shot trigger rather than adding the `review-ready` label: the label is a repo convention and the maintainer's to apply, and this is a draft opened deliberately early — step 1 of eight in `docs/tasks/a1-v0.md` — to get the wire model reviewed before CAS traversal, the reducer and provider adapters are stacked on top of it.\n\nReview focus is the four questions in the PR body: framed identity matching the frozen contract byte for byte, no permissive parse surviving anywhere, the global null/depth/array/string rules being unbypassable by parse ordering, and whether `ArtifactRef` and the envelope semantics are a correct base for FD-6 and FD-1.5.\n\nThe resolver, campaign reducer, receipt congruence, provider adapters and human lane are absent by construction, not by oversight — each is a later step of the same task.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","@codex review\n\nTriggering explicitly because this is a draft: Codex reviews fire on \"opened for review\" or \"marked ready\", neither of which a draft does — and the whole point of opening at step 1 rather than step 8 is to get the wire model reviewed *before* CAS traversal, the reducer and provider adapters are stacked on it.\n\nPlease concentrate on the four questions in the PR body, and treat everything below the wire seed as deliberately absent rather than missing:\n\n1. does the framed identity match the frozen contract verbatim — field order, `u64`-le length prefix, enums framed by `snake_case` name, absent optionals framed as the empty string and never skipped, `created_at` excluded;\n2. does any permissive parse survive — an open enum, a missing `deny_unknown_fields`, a version accepted best-effort;\n3. can the global null / depth / array / string / byte rules be bypassed by parse ordering, i.e. is there a path by which a document reaches a typed schema without the pre-deserialization pass;\n4. do `ArtifactRef` and the envelope semantics form a correct base for FD-6 replay-vs-conflict and FD-1.5 closure resolution — particularly the two-byte-string artifact charged as one ref, and `(kind, digest)` as the deduplication identity.\n\nOut of scope by construction, not by oversight: the resolver and closure traversal, the campaign reducer and `CampaignStateV1`, receipt congruence, provider adapters, the human lane. Each is a later step of `docs/tasks/a1-v0.md`.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","\n\n\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/PhysShell/007/pull/124?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\n\n\n\n\n> [!IMPORTANT]\n> ## Review skipped\n> \n> Auto incremental reviews are disabled on this repository.\n> \n> Please check the settings in the CodeRabbit UI or the `.coderabbit.yaml` file in this repository. To trigger a single review, invoke the `@coderabbitai review` command.\n> \n>

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⚙️ Run configuration

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\n> \n> You can disable this status message by setting the `reviews.review_status` to `false` in the CodeRabbit configuration file.\n> \n> Use the checkbox below for a quick retry:\n> - [ ] 🔍 Trigger review\n\n\n\n\n\n

📝 Walkthrough

\n\n\n\n## Intended behavior change\n\n- Adds the `o7-a1-contracts` crate for the frozen A1-V0 wire and domain contract.\n- Implements validated scalars, closed enums, `ArtifactRef`, `EnvelopeV1`, framed identity, JSON admission, and budget bounds.\n- Rejects unsupported versions, unknown fields, unknown enum values, explicit `null`, malformed JSON, invalid media types, and invalid bounds.\n- Enforces document-wide limits through `parse_artifact` and `validate_document`.\n\n## Repository invariants\n\n- Contract authority is pinned to blob `3b26849` with SHA-256 prefix `1a073975`.\n- Framed identity uses ordered fields and `u64` length prefixes. It excludes `created_at`.\n- `ArtifactRef` identity uses `(kind, digest)`.\n- Envelope payload binding uses the exact stored payload bytes.\n- Artifact references enforce per-kind size limits and collection bounds.\n- `InteractionManifestV1` is classified as a 64 MiB evidence-bound object.\n- Compile-time assertions protect bound relationships.\n\n## Evidence and gates\n\n- Adds 79 tests for malformed payloads, versions, unknown fields, null handling, bounds, artifact evidence, media types, error redaction, payload binding, reference sizing, and framed identity.\n- Adds tests for deserialization-route consistency and bounded collection overflow.\n- Reports formatting, Clippy, and CI checks as passing.\n- Adds `docs/tasks/a1-v0.md`, which defines the eight-step implementation plan and completion criteria. Resolver traversal, reducer/state, receipt congruence, provider adapters, and the human lane remain deferred.\n\n## Unresolved risk and trust-boundary change\n\n- Direct `serde_json::from_slice::` can bypass the caller-supplied document byte limit because `EnvelopeV1::deserialize()` does not call `validate_document()`.\n- A caller that uses this direct deserialization path can admit an oversized envelope.\n- The remaining P1 requires preventing this bypass or moving byte-limited admission into an owning API, with regression coverage.\n\n\n## Walkthrough\n\nThe PR adds the `o7-a1-contracts` workspace crate. It defines A1-V0 scalar, kind, budget, framing, reference, envelope, and JSON contracts. It adds validation and wire-seed tests, then documents the A1-V0 implementation task and contract provenance.\n\n### Changes\n\n**A1-V0 contract implementation**\n\n|Layer / File(s)|Summary|\n|---|---|\n|**Contract primitives and public API**
`crates/o7-a1-contracts/Cargo.toml`, `crates/o7-a1-contracts/src/lib.rs`, `crates/o7-a1-contracts/src/scalars.rs`, `crates/o7-a1-contracts/src/kind.rs`, `crates/o7-a1-contracts/src/bounds.rs`|Adds validated scalar types, closed producer and artifact kinds, protocol limits, budget policies, and crate-level re-exports.|\n|**Framing, references, and envelopes**
`crates/o7-a1-contracts/src/framing.rs`, `crates/o7-a1-contracts/src/refs.rs`, `crates/o7-a1-contracts/src/envelope.rs`|Adds deterministic field framing, artifact-reference validation and identity, versioned envelope validation, framed identity digests, exact payload binding, and reference-size calculation.|\n|**JSON admissibility and typed parsing**
`crates/o7-a1-contracts/src/json.rs`|Adds document validation for encoding, syntax, shape, nulls, nesting, collection sizes, string sizes, and payload size before typed parsing.|\n|**Wire-seed qualification and workspace wiring**
`Cargo.toml`, `crates/o7-a1-contracts/tests/fd1_wire_seed.rs`, `TODO.md`, `docs/tasks/a1-v0.md`|Adds the crate to the workspace, covers envelope, reference, budget, framing, and payload rules with integration tests, and records the A1-V0 task and contract provenance.|\n\n**Possibly related PRs**\n\n- [PhysShell/007#123](https://github.com/PhysShell/007/pull/123): Defines the A1-V0 schemas and wire constraints implemented by this PR.\n- [PhysShell/007#126](https://github.com/PhysShell/007/pull/126): Establishes the `InteractionManifestV1` 64 MiB classification recorded by this PR.\n\n

\n\n\n\n\n

🚥 Pre-merge checks | ✅ 5

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✅ Passed checks (5 passed)

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\n\n\n_{Comment `@coderabbitai help` to get the list of available commands.}\n\n","Ready for review at `219367d`. Opened as a draft at step 1 of eight on purpose: the wire/domain contract surface now exists, and CAS traversal, the reducer and provider orchestration are not yet on top of it to hide a foundational mistake. R5.2 bought that lesson expensively enough on the contract itself — the freeze ceremony ran, and *then* external review found four genuine P1s.\n\nThat choice was repaid. Six review rounds followed, and in five of them the defect was inside the *previous fix* rather than the original code.\n\n| | |\n|---|---|\n| `d5823a9` | `docs/tasks/a1-v0.md` — thin, contract-preserving implementation task |\n| `b2ba165` | `crates/o7-a1-contracts` — step 1, the wire/domain seed |\n| `2617370` … `3a1508b` | corrective commits, review rounds 1–5 |\n| `55b0c54` | rebind from `B0` to `B1` after S1 merged (below) |\n| `bbd8bcf` | two further sites still asserting the pre-S1 bound |\n| `219367d` | round 6 — stop quoting the pre-S1 FD-1.4 text as the governing rule |\n\nplus a merge of `main` to pick up S1.\n\n## Authority\n\n```text\ncontract docs/q-deck/a1-authority-contracts.md\nblob B1 3b26849cc39a3391aaed46cca56be3b6715afabb (post-S1)\n sha256:1a0739752a5a2f7b34bcbc8f2d600615f823c76ad8c3a91d603c4921c848175d\n\nprovenance (not authority):\n H 9b42aa5366e1e4972f902e34444ef9b42cab2f7a\n M 288cf84adad8192a596bda68837a37615d9606e9 (PR #126, S1)\n\nprevious authority (historical — implementing against it is implementing\nthe pre-S1 contract):\n B0 7db92f1b3dc9d7040da074956a0b3f2f200174c8 (PR #123)\n```\n\nBound to the **blob**, not a branch head — a distinction this task has now had demonstrated twice, in opposite directions. `8ee8666` moved the A1-F head without changing a byte of the contract, so \"the latest head\" names an object that moves independently of what is implemented. And **S1 changed the bytes without moving any protocol version**: §7.2 gates on payload shape, envelope/rank, and reducer semantics, and S1 touched none of the three, so an implementation bound to a version gate would not have observed the supersede at all. The blob is the only identity that distinguishes `B0` from `B1`.\n\nProvenance for how these bytes became authority: `docs/architecture/prior-art-the-grid.md` §1.3.\n\n### What S1 changed here\n\nThis PR originally recorded FD-1.4's double classification of `InteractionManifestV1` — a typed A1 object, but named under \"manifest\" in the evidence-blob line — as *a reading it had chosen*, with a note that it was a candidate for a §7 clarification. That note was an implementation carrying a statement that its own contract was unsound, which is not where such a statement belongs. It was resolved through the contract's own ceremony instead: **S1**, the first §7 supersede (PR #126, merged `288cf84`). **64 MiB**, staying a typed A1 object for FD-1.7 media types and its FD-2 rank.\n\nThe code's behaviour did not change — 64 MiB and the two-predicate split were already what it did. What changed is that the comments no longer claim a judgement call where there is now contract text, and the tests now pin the *edge* (`MAX_EVIDENCE_BLOB_BYTES` admissible, `+ 1` rejected) rather than only the direction. Neither was possible before S1: the first would have been documentation drifting from an ambiguous source, the second would have frozen an implementer's choice into a regression test.\n\n## What review would be most useful on\n\nFour questions, and deliberately nothing else:\n\n1. **Framed identity is verbatim `B1`.** Field order, the `u64`-le length prefix, enums framed by `snake_case` name rather than tag byte, absent optionals framed as the empty string and never skipped, `created_at` excluded (FD-1.2, FD-5.4).\n2. **No permissive parse survives anywhere.** Every enum closed, no `#[serde(other)]`, `deny_unknown_fields` throughout, unsupported versions refused rather than best-effort parsed (FD-1.6).\n3. **The global rules cannot be bypassed by parse ordering.** Null policy, depth, array length, string length and the byte bound run as one pass *before* typed deserialization — is there an ordering by which a document reaches a typed schema without them (FD-1.3, FD-1.4)?\n4. **`ArtifactRef` and envelope semantics are a correct base for what comes next.** Two-byte-string artifacts charged as one ref, `(kind, digest)` identity for deduplication, media type as part of identity — do these hold up for FD-6 replay-vs-conflict and FD-1.5 closure resolution (FD-1.8)?\n\n**Out of this review slice, by construction:** the resolver and closure traversal (step 2), the campaign event/reducer core and `CampaignStateV1` (step 3), acceptance and receipt congruence (step 4), provider adapters (step 5), the human lane (step 6). \"Where is the resolver?\" and \"why no campaign state?\" have the same answer: a later step of the same task. Asserting them now would assert against a stub.\n\nLive-execution reconciliation and lifecycle management are outside A1-V0 entirely — prior art in `docs/architecture/prior-art-the-grid.md`, first eligible consumer `controller-lifecycle`.\n\n## Three decisions that had a plausible alternative\n\n**Framed preimage buffer rather than an incremental hasher.** Hashing is over the concatenation of the contract's `h.update()` calls, so the two are byte-identical — but the buffer lets every digest here come from `o7_run::event::Digest256::of_bytes`, which FD-1.1 names as *the* form for A1 digests. There is then no path by which this crate mints a `Digest256` that did not come from real bytes, and `o7-run`'s deliberately crate-private `from_sha256` stays private.\n\n**One pre-deserialization pass for the global rules.** FD-1.3 states its null policy once, globally, and the FD-1.4 document bounds apply to *any* array and *any* string. Enforced as a single walk, a new payload schema inherits them by existing rather than by an author remembering an attribute on each optional field — which would have made the policy a convention.\n\n**`const _: () = assert!(...)` for the FD-1.5 bound relationship.** The contract asks for a unit test; a const assertion is strictly stronger, because a violating pair of constants then fails to compile and the check cannot be satisfied by a test nobody runs.\n\n## Exit criterion for step 1\n\nNot \"the types compile\" — the §5.4 rows whose subject is the wire seed are executable now:\n\nmalformed payloads · unsupported `envelope_version` / `message_kind_version` · unknown field · explicit `null` in a genuinely optional field (with a paired test that the same field *absent* parses, so the assertion is about the null and not about a missing required value) · per-object bounds · campaign budget above the hard maximum · provider evidence present on a controller artifact and absent on a provider one · and the framed-identity properties FD-6 will rest on: `created_at` excluded, a different `expected_input_head` is a different identity, a different declared media type is a different reference.\n\n79 tests (46 unit + 33 integration), `cargo fmt --check` and `cargo clippy --all-targets` clean. 4/4 CI green on `219367d`.","base_ref","288cf84adad8192a596bda68837a37615d9606e9","head_ref","pull_request_info",[2260],{"_1976":57,"_57":2261},"@chatgpt-codex-connector Both P1s confirmed on `b339d54`. Neither is fixed yet, and I am reporting rather than pushing — see the end.\n\n**1 — `message_kind` ↔ `producer_role` is unenforced.** Verified against `3b26849` before agreeing: every §3.x heading fixes the direction — `### 3.1 WorkOrderV1 (Controller → Coder, rank 5)` and so on for all eleven kinds. So the mapping is contract text, not an inference, and `validate` never reads it. Today `message_kind: work_order` with `producer_role: coder` is admitted by **both** routes. That is a provider-authored artifact wearing a controller-command kind, and FD-5's authority direction is exactly what it defeats.\n\nThis one I checked specifically because the opposite mistake has already cost a round on this PR: `RefError::ZeroSize` was a rule I invented and had to remove. A kind→role table that the contract did not state would be the same error. It states it.\n\n**2 — the ceiling is checked on a representation that is not necessarily the stored one.** `new` measures `serde_json::to_vec`'s compact form, and the value still implements `Serialize` publicly, so `to_vec_pretty` can push a just-under-1 MiB envelope over the line. You are right that checking one encoding while permitting another does not preserve the invariant.\n\nThis is the more interesting of the two, because the honest fix is not another check. FD-1.1 says the bytes *are* the artifact; a type with a public `Serialize` has no canonical form, so \"the stored object is bounded\" is not a property it can carry. The fix shape is a single checked encoding — `to_wire_bytes()` returning the bytes `new` already validated — and **removing the public `Serialize`**, so there is one encoding rather than a preferred one among many. That is the same doctrine as `parse_artifact` on the way in, applied on the way out, and it is the third time this PR has arrived at \"delete the second door\" from a different direction.\n\n## Why I am not pushing either fix in this session\n\nFix 2 changes the crate's shape again — every test that does `serde_json::to_value(envelope)` moves — and this session has been running long enough that I would be doing a broad mechanical refactor on thin working memory. The single most reliable finding across nineteen rounds is that a hurried fix produces the next defect, usually inside the fix itself. I would rather hand @PhysShell two verified P1s than a twentieth round of my own making.\n\nFor the record on the merge gate: **this pass is not clean**, and the contract-owner's criterion 3 is now broken as well — fix 2 requires a new public API (`to_wire_bytes`) rather than only narrowing.\n\n---\n_Generated by [Claude 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