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ℹ️ Recent review info

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⚙️ Run configuration

\\n\\n**Configuration used**: Path: .coderabbit.yaml\\n\\n**Review profile**: ASSERTIVE\\n\\n**Plan**: Pro\\n\\n**Run ID**: `33071667-3a3d-4ab4-b069-611af33abf45`\\n\\n

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📥 Commits

\\n\\nReviewing files that changed from the base of the PR and between 6d5a6f4304cef21aee081918666dbb4fd64c2693 and ddafe71a7ec5be247e622edd5b5625d0a63b4a7f.\\n\\n

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📒 Files selected for processing (9)

\\n\\n* `CHANGELOG.md`\\n* `backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md`\\n* `crates/warp-core/src/causal_facts.rs`\\n* `crates/warp-core/src/lib.rs`\\n* `crates/warp-core/src/optic_artifact.rs`\\n* `crates/warp-core/tests/capability_grant_validation_tests.rs`\\n* `crates/warp-core/tests/optic_invocation_admission_tests.rs`\\n* `docs/design/capability-grant-validation-obstruction-facts.md`\\n* `docs/design/invocation-obstruction-graph-facts.md`\\n\\n

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📝 Walkthrough

\\n\\n## Walkthrough\\n\\nAdds capability grant validation as a pre-admission obstruction fact. Introduces `CapabilityGrantValidationObstructionKind` enum, `GraphFact::CapabilityGrantValidationObstructed` variant, validation API in `CapabilityGrantIntentGate`, deterministic fact digest, regression tests, and design documentation clarifying refusal-first semantics without success admission, work, or execution.\\n\\n## Changes\\n\\n**Capability Grant Validation Obstruction Implementation**\\n\\n|Layer / File(s)|Summary|\\n|---|---|\\n|**Validation obstruction fact model and types**
`crates/warp-core/src/causal_facts.rs`, `crates/warp-core/src/lib.rs`|Defines `CapabilityGrantValidationObstructionKind` enum with variants for malformed/unbound presentations, unknown grants, and hash/id/digest mismatches. Adds `GraphFact::CapabilityGrantValidationObstructed` variant carrying presentation/grant identifiers, expected vs actual artifact/operation/requirements digests. Implements `digest_label()` and extends `GraphFact::digest()` for deterministic serialization. Re-exports new kind from lib.rs.|\\n|**Validation API types and surface**
`crates/warp-core/src/optic_artifact.rs`, `crates/warp-core/src/lib.rs`|Introduces `CapabilityGrantExpiryPosture`, `CapabilityGrantValidationObstruction`, `CapabilityGrantIdentityCoverage`, `CapabilityGrantValidationPosture`, and `CapabilityGrantValidationOutcome` types. Adds `CAPABILITY_GRANT_VALIDATION_POSTURE_KIND` constant. Updates module and type documentation to clarify placeholder posture behavior and admission boundary semantics.|\\n|**Validation implementation and state management**
`crates/warp-core/src/optic_artifact.rs`, `crates/warp-core/tests/optic_invocation_admission_tests.rs`|Extends `CapabilityGrantIntentGate` with `published_graph_facts` field and implements `validate_capability_presentation_for_artifact()` method performing refusal-first checks on presentation binding, grant lookup, and artifact/operation/requirements digest matching with optional expiry obstruction. Adds `obstructed_capability_grant_validation()`, `publish_capability_grant_validation_obstruction()`, and `validation_grant_id()` helpers. Updates admission test function names to reflect validation context.|\\n|**Regression tests**
`crates/warp-core/tests/capability_grant_validation_tests.rs`|Provides fixture helpers and comprehensive tests verifying that validation obstructs on artifact hash/operation id/requirements digest mismatch and expiry. Validates correct obstruction fact publication with expected/granted identifiers and digests. Confirms deterministic digest for identical facts.|\\n|**Design documentation and changelog**
`CHANGELOG.md`, `backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md`, `docs/design/capability-grant-validation-obstruction-facts.md`, `docs/design/invocation-obstruction-graph-facts.md`|Documents the obstruction-facts doctrine, fact model, validation flow, and non-goals (no success admission, tickets, law witness, execution, delegation/quorum, Continuum, invocation success). Adds RE-031 backlog document describing follow-up work. Clarifies that `admit_optic_invocation` does not perform grant validation.|\\n\\n## Possibly Related PRs\\n\\n- [flyingrobots/echo#331](https://github.com/flyingrobots/echo/pull/331): Adds `admit_optic_invocation` skeleton that currently blocks with `CapabilityValidationUnavailable` obstruction—this PR supplies the missing validation layer.\\n- [flyingrobots/echo#344](https://github.com/flyingrobots/echo/pull/344): Extends `OpticAdmissionRequirements` with stable digest/codec fields that this PR's validation logic depends on for requirements digest comparison.\\n\\n## Estimated Code Review Effort\\n\\n🎯 3 (Moderate) | ⏱️ ~25 minutes\\n\\n## Poem\\n\\n> Obstruction facts, before tickets flow, \\n> Grant validation says \\\"no, just no.\\\" \\n> Digests compared with steady hand, \\n> Refusal-first: the law of the land. \\n> Evidence burned in the graph's refrain, \\n> Permission denied—deterministic pain. 🔐\\n\\n

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

\\n\\n### ❌ Failed checks (1 warning)\\n\\n| Check name | Status | Explanation | Resolution |\\n| :----------------: | :--------- | :------------------------------------------------------------------------------------ | :--------------------------------------------------------------------------------- |\\n| Docstring Coverage | ⚠️ Warning | Docstring coverage is 67.65% which is insufficient. The required threshold is 80.00%. | Write docstrings for the functions missing them to satisfy the coverage threshold. |\\n\\n

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✅ Passed checks (4 passed)

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✨ Finishing Touches

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📝 Generate docstrings

\\n\\n- [ ] Create stacked PR\\n- [ ] Commit on current branch\\n\\n

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🧪 Generate unit tests (beta)

\\n\\n- [ ] Create PR with unit tests\\n- [ ] Commit unit tests in branch `stack/capability-grant-validation-obstruction-facts`\\n\\n

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\\n\\n\\n\\n\\n---\\n\\nThanks for using [CodeRabbit](https://coderabbit.ai?utm_source=oss&utm_medium=github&utm_campaign=flyingrobots/echo&utm_content=345)! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.\\n\\n

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\\n\\n- [X](https://twitter.com/intent/tweet?text=I%20just%20used%20%40coderabbitai%20for%20my%20code%20review%2C%20and%20it%27s%20fantastic%21%20It%27s%20free%20for%20OSS%20and%20offers%20a%20free%20trial%20for%20the%20proprietary%20code.%20Check%20it%20out%3A&url=https%3A//coderabbit.ai)\\n- [Mastodon](https://mastodon.social/share?text=I%20just%20used%20%40coderabbitai%20for%20my%20code%20review%2C%20and%20it%27s%20fantastic%21%20It%27s%20free%20for%20OSS%20and%20offers%20a%20free%20trial%20for%20the%20proprietary%20code.%20Check%20it%20out%3A%20https%3A%2F%2Fcoderabbit.ai)\\n- [Reddit](https://www.reddit.com/submit?title=Great%20tool%20for%20code%20review%20-%20CodeRabbit&text=I%20just%20used%20CodeRabbit%20for%20my%20code%20review%2C%20and%20it%27s%20fantastic%21%20It%27s%20free%20for%20OSS%20and%20offers%20a%20free%20trial%20for%20proprietary%20code.%20Check%20it%20out%3A%20https%3A//coderabbit.ai)\\n- [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fcoderabbit.ai&mini=true&title=Great%20tool%20for%20code%20review%20-%20CodeRabbit&summary=I%20just%20used%20CodeRabbit%20for%20my%20code%20review%2C%20and%20it%27s%20fantastic%21%20It%27s%20free%20for%20OSS%20and%20offers%20a%20free%20trial%20for%20proprietary%20code)\\n\\n

\\n\\n\\n_{Comment `@coderabbitai help` to get the list of available commands and usage tips.}\\n\\n\\n\\n\\n\\n\\n\\n\",\"path\":null,\"side\":null,\"line\":null}","text_elements",[],{"_378":494,"_359":360,"_380":366},{"_381":495,"_383":-5,"_41":-5,"_384":-5,"_94":320,"_90":386},[496],{"_45":490,"_90":497},"input_text",{"_378":499,"_359":360,"_380":366},{"_381":500,"_383":-5,"_41":-5,"_384":-5,"_94":320,"_90":386},[501,502],{"_45":504,"_90":497},{"_45":503,"_90":497},"\n /workspace/echo\n bash\n 2026-05-15\n Etc/UTC\n","# AGENTS.md instructions for /workspace/echo\n\n\n\n\n\n# AGENTS\n\nThis guide is for AI agents and human operators recovering context in the Echo repository.\n\n## Architecture North Star\n\nEcho is not a graph database, app framework, sync daemon, or mutable state\nserver. Echo is a deterministic WARP runtime over witnessed causal history.\n\nThe durable territory is admitted causal history: transitions, frontiers, lane\nidentities, payload hashes, receipts, witnesses, checkpoints, suffixes, and\nretained boundary artifacts. Graphs, files, editor buffers, UI state, and debug\nviews are materialized readings emitted by observers or optics over that\nhistory. They may be cached, retained, transported, compared, or revealed, but\nthey are not the substrate ontology.\n\nPublic Echo surfaces should follow the WARP optic shape:\n\n```text\nexplicit causal basis/site\n+ bounded aperture\n+ law\n+ support, capability, budget, and evidence posture\n-> witnessed hologram\n```\n\nExternal callers propose explicit-base intents or observe through bounded\noptics. Echo admits, stages, pluralizes, conflicts, or obstructs those claims\nunder named law and emits receipts, reading envelopes, witnesses, or retained\nshells. Transport is witnessed suffix admission, not state sync. Application\nnouns belong in authored contracts and generated adapters, not in Echo core.\n\nKeep these sentences in view when changing architecture, docs, or APIs:\n\n```text\nThere is witnessed causal history.\nWARP optics chart it.\nHolograms witness those charts.\nMaterialized graphs are optional readings.\nContinuum is the protocol for lawful causal-history exchange.\n```\n\n## Git Rules\n\n- **NEVER** amend commits.\n- **NEVER** rebase or force-push.\n- **NEVER** push to `main` without explicit permission.\n- Always use standard commits and regular pushes.\n\n## Documentation & Planning Map\n\nDo not audit the repository by recursively walking the filesystem. Follow the authoritative manifests:\n\n### 1. The Entrance\n\n- **`README.md`**: Public front door, core value prop, and quick tour.\n- **`GUIDE.md`**: Orientation and productive-fast path.\n- **`docs/index.md`**: VitePress documentation map.\n\n### 2. The Bedrock\n\n- **`ARCHITECTURE.md`**: Authoritative structural reference (Hexagonal, Core, Memory).\n- **`VISION.md`**: Core tenets and the causal mission.\n- **`METHOD.md`**: Repo work doctrine (Backlog lanes, Cycle loop).\n\n### 3. The Direction\n\n- **`docs/BEARING.md`**: Current execution gravity and active tensions.\n- **`docs/design/ROADMAP.md`**: Broad strategic horizon and targets.\n- **`backlog/`**: The active source of truth for pending work.\n\n### 4. The Proof\n\n- **`CHANGELOG.md`**: Historical truth of merged behavior.\n- **`cargo xtask dind`**: Determinism convergence verification.\n\n## Context Recovery Protocol\n\nWhen starting a new session or recovering from context loss:\n\n1. **Read `docs/BEARING.md`** to find the current execution gravity.\n2. **Read `METHOD.md`** to understand the work doctrine.\n3. **Check `backlog/asap/`** for imminent work.\n4. **Check `git log -n 5` and `git status`** to verify the current branch state.\n\n## Executable Claim Protocol\n\nEngineering work must converge around executable evidence, not broad repository\ninterpretation. Before editing code, reduce the task to one executable claim:\n\n1. **Bound the Claim**: State the behavior, invariant, or artifact that must\n change.\n2. **Name the Witness**: Identify the smallest test, check, script, compile\n contract, golden vector, schema validation, or artifact inspection that can\n prove the claim.\n3. **Run the Witness When Feasible**: Prefer a failing witness before the fix.\n If the witness cannot execute because the repository is already broken,\n repair only the minimal compile/runtime blocker required to run it.\n4. **Do Not Expand from an Unblocker**: Do not turn a compile blocker into\n nearby architecture cleanup, docs cleanup, lint cleanup, migration sweep, or\n opportunistic refactor.\n5. **Green the Claim**: Implement the smallest fix, rerun the witness, and run\n only directly relevant surrounding checks unless broader validation is\n explicitly requested.\n6. **Stop on Green**: When the witness passes and the requested scope is\n satisfied, stop. Do not inspect more PR comments, audit more files, or clean\n unrelated residue without a new executable claim.\n\nIf unrelated failures remain, isolate them in the final report instead of\nabsorbing them into the task. Report files changed, symbols or behavior changed,\nwitness commands, pass/fail results, and intentional non-actions such as no\ncommit, no push, or no PR comment.\n\n## End of Turn Checklist\n\nAfter altering files:\n\n1. **Verify Truth**: Ensure documentation is updated if behavior or structure changed.\n2. **Log Debt**: Add follow-on backlog items to `bad-code/` or `cool-ideas/`.\n3. **Commit**: Use focused, conventional commit messages. Propose a draft before executing.\n4. **Validate**: Run `cargo check` and relevant tests.\n\n---\n\n**The goal is inevitability. Every feature is defined by its tests.**\n\n",{"_378":506,"_359":360,"_380":366},{"_381":507,"_383":-5,"_41":-5,"_384":-5,"_94":508,"_90":386},[509,510],"developer",{"_45":512,"_90":497},{"_45":511,"_90":497},"\n## Skills\nA skill is a set of local instructions to follow that is stored in a `SKILL.md` file. Below is the list of skills that can be used. Each entry includes a name, description, and file path so you can open the source for full instructions when using a specific skill.\n### Available skills\n- imagegen: Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output should be a bitmap asset rather than repo-native code or vector. Do not use when the task is better handled by editing existing SVG/vector/code-native assets, extending an established icon or logo system, or building the visual directly in HTML/CSS/canvas. (file: /opt/codex/skills/.system/imagegen/SKILL.md)\n- openai-docs: Use when the user asks how to build with OpenAI products or APIs and needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; prioritize OpenAI docs MCP tools, use bundled references only as helper context, and restrict any fallback browsing to official OpenAI domains. (file: /opt/codex/skills/.system/openai-docs/SKILL.md)\n- plugin-creator: Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, and baseline placeholders you can edit before publishing or testing. Use when Codex needs to create a new local plugin, add optional plugin structure, or generate or update repo-root `.agents/plugins/marketplace.json` entries for plugin ordering and availability metadata. (file: /opt/codex/skills/.system/plugin-creator/SKILL.md)\n- skill-creator: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. (file: /opt/codex/skills/.system/skill-creator/SKILL.md)\n- skill-installer: Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /opt/codex/skills/.system/skill-installer/SKILL.md)\n### How to use skills\n- Discovery: The list above is the skills available in this session (name + description + file path). Skill bodies live on disk at the listed paths.\n- Trigger rules: If the user names a skill (with `$SkillName` or plain text) OR the task clearly matches a skill's description shown above, you must use that skill for that turn. Multiple mentions mean use them all. Do not carry skills across turns unless re-mentioned.\n- Missing/blocked: If a named skill isn't in the list or the path can't be read, say so briefly and continue with the best fallback.\n- How to use a skill (progressive disclosure):\n 1) After deciding to use a skill, open its `SKILL.md`. Read only enough to follow the workflow.\n 2) When `SKILL.md` references relative paths (e.g., `scripts/foo.py`), resolve them relative to the skill directory listed above first, and only consider other paths if needed.\n 3) If `SKILL.md` points to extra folders such as `references/`, load only the specific files needed for the request; don't bulk-load everything.\n 4) If `scripts/` exist, prefer running or patching them instead of retyping large code blocks.\n 5) If `assets/` or templates exist, reuse them instead of recreating from scratch.\n- Coordination and sequencing:\n - If multiple skills apply, choose the minimal set that covers the request and state the order you'll use them.\n - Announce which skill(s) you're using and why (one short line). If you skip an obvious skill, say why.\n- Context hygiene:\n - Keep context small: summarize long sections instead of pasting them; only load extra files when needed.\n - Avoid deep reference-chasing: prefer opening only files directly linked from `SKILL.md` unless you're blocked.\n - When variants exist (frameworks, providers, domains), pick only the relevant reference file(s) and note that choice.\n- Safety and fallback: If a skill can't be applied cleanly (missing files, unclear instructions), state the issue, pick the next-best approach, and continue.\n","\nFilesystem sandboxing defines which files can be read or written. `sandbox_mode` is `danger-full-access`: No filesystem sandboxing - all commands are permitted. Network access is enabled.\nApproval policy is currently never. Do not provide the `sandbox_permissions` for any reason, commands will be rejected.\n","turn/started",{"_359":360,"_85":515},{"_101":-5,"_41":366,"_367":516,"_369":370,"_371":517},[],"inProgress",{"_371":519,"_359":360},{"_520":521,"_90":522},"activeFlags",[],"active","thread/started",{"_525":526},"thread",{"_527":-5,"_528":-5,"_529":530,"_531":370,"_425":426,"_532":15,"_533":-5,"_534":-5,"_41":360,"_535":536,"_179":-5,"_159":537,"_538":207,"_430":539,"_371":540,"_75":541,"_542":370},"agentNickname","agentRole","cliVersion","0.124.0","createdAt","ephemeral","forkedFromId","gitInfo","modelProvider","openai","/opt/codex/sessions/2026/05/15/rollout-2026-05-15T13-47-11-019e2be4-1fd8-7561-9c87-32e69e6df5bd.jsonl","preview","vscode",{"_90":375},[],"updatedAt",[],"messages",[546],{"_41":547,"_548":549,"_550":551,"_552":551,"_381":553,"_371":554,"_383":-5,"_555":31,"_556":557,"_558":559,"_560":-5},"ea688c77-f697-4812-8f52-c3350eb8b075","author",{"_94":320,"_179":-5,"_556":569},"create_time",1778852830.586184,"update_time",{"_565":45,"_566":567},"finished_successfully","weight","metadata",{"_561":562},"recipient","all","channel","l1239dk1",{"_563":564},"inline_comments",[],"content_type","parts",[568],"🔍 Code Lawyer Audit Summary\n\n| Issue | Severity | Source | Addressed by | Regression coverage | Outcome |\n| :--- | :--- | :--- | :--- | :--- | :--- |\n| No unresolved review threads found | N/A | GitHub reviewThreads | No new commit | GraphQL review-thread query | Clean |\n| No blocking self-audit defects found | N/A | Self-audit of `origin/main...HEAD` | No new commit | `git diff --check`; targeted local validation | Clean |\n\nLocal validation run:\n\n```text\ncargo test -p warp-core --test capability_grant_validation_tests\ncargo test -p warp-core --test optic_invocation_admission_tests\ncargo test -p warp-core --lib\ncargo check -p warp-core\nscripts/ban-nondeterminism.sh\nnpx markdownlint-cli2 CHANGELOG.md docs/design/capability-grant-validation-obstruction-facts.md backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md docs/design/invocation-obstruction-graph-facts.md\n```\n\nAll listed local checks passed. CI checks are green. Merge gate remains blocked only by review policy (`REVIEW_REQUIRED`, zero approving reviews). Cc: @codex\nfeat(core): publish capability grant validation obstruction facts\n\n## Summary\n\n- add `GraphFact::CapabilityGrantValidationObstructed` with deterministic digest coverage for grant validation refusals\n- add narrow identity-only capability grant validation against registered optic artifact material\n- document the refusal-first boundary and backlog the future accepted grant/admission integration\n\n## Non-goals preserved\n\n- no successful `AdmissionTicket`\n- no `LawWitness`\n- no execution or scheduler integration\n- no delegation, quorum, governance, or Continuum protocol\n\n## Validation\n\n- `cargo test -p warp-core --test capability_grant_validation_tests`\n- `cargo test -p warp-core --test capability_grant_validation_tests --test capability_grant_intent_tests --test optic_invocation_admission_tests --test causal_fact_publication_tests`\n- `cargo check -p warp-core --all-targets`\n- `cargo clippy -p warp-core --all-targets -- -D warnings`\n- `npx prettier --check CHANGELOG.md docs/design/capability-grant-validation-obstruction-facts.md docs/design/invocation-obstruction-graph-facts.md backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md`\n- `git diff --check`\n- pre-commit hook\n- pre-push full local gate\n\n\n\n## Summary by CodeRabbit\n\n* **New Features**\n * Capability grant validation now publishes obstruction facts when grant material fails validation against expected artifact hash, operation ID, requirements digest, and expiry status.\n * Added validation outcome mechanism for capability presentations against registered grants.\n\n* **Documentation**\n * Added design documentation for capability grant validation obstruction facts and validation flows.\n\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/flyingrobots/echo/pull/345)\n\n\n\n\n\nNo actionable comments were generated in the recent review. 🎉\n\n

ℹ️ Recent review info

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⚙️ Run configuration

\n\n**Configuration used**: Path: .coderabbit.yaml\n\n**Review profile**: ASSERTIVE\n\n**Plan**: Pro\n\n**Run ID**: `33071667-3a3d-4ab4-b069-611af33abf45`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 6d5a6f4304cef21aee081918666dbb4fd64c2693 and ddafe71a7ec5be247e622edd5b5625d0a63b4a7f.\n\n

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📒 Files selected for processing (9)

\n\n* `CHANGELOG.md`\n* `backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md`\n* `crates/warp-core/src/causal_facts.rs`\n* `crates/warp-core/src/lib.rs`\n* `crates/warp-core/src/optic_artifact.rs`\n* `crates/warp-core/tests/capability_grant_validation_tests.rs`\n* `crates/warp-core/tests/optic_invocation_admission_tests.rs`\n* `docs/design/capability-grant-validation-obstruction-facts.md`\n* `docs/design/invocation-obstruction-graph-facts.md`\n\n

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\n\n---\n\n\n

📝 Walkthrough

\n\n## Walkthrough\n\nAdds capability grant validation as a pre-admission obstruction fact. Introduces `CapabilityGrantValidationObstructionKind` enum, `GraphFact::CapabilityGrantValidationObstructed` variant, validation API in `CapabilityGrantIntentGate`, deterministic fact digest, regression tests, and design documentation clarifying refusal-first semantics without success admission, work, or execution.\n\n## Changes\n\n**Capability Grant Validation Obstruction Implementation**\n\n|Layer / File(s)|Summary|\n|---|---|\n|**Validation obstruction fact model and types**
`crates/warp-core/src/causal_facts.rs`, `crates/warp-core/src/lib.rs`|Defines `CapabilityGrantValidationObstructionKind` enum with variants for malformed/unbound presentations, unknown grants, and hash/id/digest mismatches. Adds `GraphFact::CapabilityGrantValidationObstructed` variant carrying presentation/grant identifiers, expected vs actual artifact/operation/requirements digests. Implements `digest_label()` and extends `GraphFact::digest()` for deterministic serialization. Re-exports new kind from lib.rs.|\n|**Validation API types and surface**
`crates/warp-core/src/optic_artifact.rs`, `crates/warp-core/src/lib.rs`|Introduces `CapabilityGrantExpiryPosture`, `CapabilityGrantValidationObstruction`, `CapabilityGrantIdentityCoverage`, `CapabilityGrantValidationPosture`, and `CapabilityGrantValidationOutcome` types. Adds `CAPABILITY_GRANT_VALIDATION_POSTURE_KIND` constant. Updates module and type documentation to clarify placeholder posture behavior and admission boundary semantics.|\n|**Validation implementation and state management**
`crates/warp-core/src/optic_artifact.rs`, `crates/warp-core/tests/optic_invocation_admission_tests.rs`|Extends `CapabilityGrantIntentGate` with `published_graph_facts` field and implements `validate_capability_presentation_for_artifact()` method performing refusal-first checks on presentation binding, grant lookup, and artifact/operation/requirements digest matching with optional expiry obstruction. Adds `obstructed_capability_grant_validation()`, `publish_capability_grant_validation_obstruction()`, and `validation_grant_id()` helpers. Updates admission test function names to reflect validation context.|\n|**Regression tests**
`crates/warp-core/tests/capability_grant_validation_tests.rs`|Provides fixture helpers and comprehensive tests verifying that validation obstructs on artifact hash/operation id/requirements digest mismatch and expiry. Validates correct obstruction fact publication with expected/granted identifiers and digests. Confirms deterministic digest for identical facts.|\n|**Design documentation and changelog**
`CHANGELOG.md`, `backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md`, `docs/design/capability-grant-validation-obstruction-facts.md`, `docs/design/invocation-obstruction-graph-facts.md`|Documents the obstruction-facts doctrine, fact model, validation flow, and non-goals (no success admission, tickets, law witness, execution, delegation/quorum, Continuum, invocation success). Adds RE-031 backlog document describing follow-up work. Clarifies that `admit_optic_invocation` does not perform grant validation.|\n\n## Possibly Related PRs\n\n- [flyingrobots/echo#331](https://github.com/flyingrobots/echo/pull/331): Adds `admit_optic_invocation` skeleton that currently blocks with `CapabilityValidationUnavailable` obstruction—this PR supplies the missing validation layer.\n- [flyingrobots/echo#344](https://github.com/flyingrobots/echo/pull/344): Extends `OpticAdmissionRequirements` with stable digest/codec fields that this PR's validation logic depends on for requirements digest comparison.\n\n## Estimated Code Review Effort\n\n🎯 3 (Moderate) | ⏱️ ~25 minutes\n\n## Poem\n\n> Obstruction facts, before tickets flow, \n> Grant validation says \"no, just no.\" \n> Digests compared with steady hand, \n> Refusal-first: the law of the land. \n> Evidence burned in the graph's refrain, \n> Permission denied—deterministic pain. 🔐\n\n

\n\n\n\n\n

🚥 Pre-merge checks | ✅ 4 | ❌ 1

\n\n### ❌ Failed checks (1 warning)\n\n| Check name | Status | Explanation | Resolution |\n| :----------------: | :--------- | :------------------------------------------------------------------------------------ | :--------------------------------------------------------------------------------- |\n| Docstring Coverage | ⚠️ Warning | Docstring coverage is 67.65% which is insufficient. The required threshold is 80.00%. | Write docstrings for the functions missing them to satisfy the coverage threshold. |\n\n

✅ Passed checks (4 passed)

\n\n_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}\n\n

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✨ Finishing Touches

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📝 Generate docstrings

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\n\n\n_{Comment `@coderabbitai help` to get the list of available commands and usage tips.}\n\n\n\n\n\n\n\n","side","line","base_ref","head_ref","pull_request_info",[619],{"_565":45,"_45":620},"🔍 Code Lawyer Audit Summary\n\n| Issue | Severity | Source | Addressed by | Regression coverage | Outcome |\n| :--- | :--- | :--- | :--- | :--- | :--- |\n| No unresolved review threads found | N/A | GitHub reviewThreads | No new commit | GraphQL review-thread query | Clean |\n| No blocking self-audit defects found | N/A | Self-audit of `origin/main...HEAD` | No new commit | `git diff --check`; targeted local validation | Clean |\n\nLocal validation run:\n\n```text\ncargo test -p warp-core --test capability_grant_validation_tests\ncargo test -p warp-core --test optic_invocation_admission_tests\ncargo test -p warp-core --lib\ncargo check -p warp-core\nscripts/ban-nondeterminism.sh\nnpx markdownlint-cli2 CHANGELOG.md docs/design/capability-grant-validation-obstruction-facts.md backlog/bad-code/RE-031-capability-grant-validation-admission-integration.md docs/design/invocation-obstruction-graph-facts.md\n```\n\nAll listed local checks passed. 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