)` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n21bf130 fix(binder): make the RequestBinderOptions.Default freeze atomic\n8b7bec2 Merge remote-tracking branch 'origin/main' into 181-host-agnostic-default-options\na74f384 docs(binder): accept ADR-0017 for the app-wide default options\n378f6ec docs(binder): draft ADR-0017 for the app-wide default options\n2a79a31 feat(binder): configure a host-agnostic default for Bind.PropertiesOf\n",{"_401":570,"_383":571,"_362":363,"_385":369},1784380005762,{"_433":572,"_435":573,"_437":574,"_439":440,"_367":32,"_441":32,"_42":566,"_442":575,"_444":445,"_376":113,"_92":446},"# AGENTS.md — FirstClassErrors\n\nInstructions for automated agents (OpenAI Codex and others) in this repository.\nTwo roles are covered: **writing code** and **reviewing pull requests**.\n\n## Project orientation (code changes)\n\n- .NET Standard 2.0 library. Errors are first-class, documented, diagnosable concepts.\n- Build: `dotnet build FirstClassErrors.sln`\n- Test: `dotnet test FirstClassErrors.sln` (analyzer tests: `dotnet test FirstClassErrors.Analyzers.UnitTests`).\n- Repository language is **English** (code, comments, commits, PRs, issues, and\n review comments). French lives only in `doc/handwritten/for-users/README.fr.md` and must stay in sync\n with the English README.\n- `Error` and its hierarchy, `ErrorCode`, `ErrorContextKey`, `Outcome`/`Outcome<T>`\n and any value object are **`class`, never `struct`** — a struct exposes a\n zero-initialized default that bypasses validating constructors. Enums\n (`Transience`, `ErrorOrigin`) are the only value-type exception.\n- Keep changes small and focused. Treat renamed error codes, diagnostic IDs and\n public types as breaking changes.\n\n## Architecture decisions (code changes)\n\nBefore finalizing a pull request, check it against the ADR base under\n`doc/handwritten/for-maintainers/adr/` (format and conventions: `doc/handwritten/for-maintainers/adr/README.md`). An ADR\nrecords a **significant, lasting decision** — one a future maintainer would ask\n\"why did they do it this way?\" about — not every change. Apply the README's test:\n*if the implementation changed but the decision stood, the ADR should not need\nediting.* Most pull requests embark no such decision; the **check** is mandatory,\nthe **ADR** is not.\n\nThe check has three outcomes — state the result in the pull request description:\n\n- **Create** — the pull request embarks a new lasting decision (a public API\n contract, a cross-cutting invariant, a supported-platform floor, a dependency or\n security/compatibility policy, and the like). Draft one ADR per decision from\n `template.md` with **`Status: Proposed`**, add it to the index in `README.md`,\n and link it from the pull request.\n- **Supersede** — the decision replaces one already recorded. Never edit the\n existing ADR in place or change its status yourself: name it in the pull request,\n draft the successor as `Proposed`, and leave the status flip to the maintainer.\n Accepted ADRs are immutable historical records.\n- **Alert** — the pull request contradicts an accepted ADR. Do not proceed\n silently: flag it in the description — `⚠️ Conflicts with ADR-NNNN (<title>)` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n21bf130 fix(binder): make the RequestBinderOptions.Default freeze atomic\n8b7bec2 Merge remote-tracking branch 'origin/main' into 181-host-agnostic-default-options\na74f384 docs(binder): accept ADR-0017 for the app-wide default options\n378f6ec docs(binder): draft ADR-0017 for the app-wide default options\n2a79a31 feat(binder): configure a host-agnostic default for Bind.PropertiesOf\n","/bin/bash -lc 'cat AGENTS.md && git status --short && git log --oneline -5'",[576],"49008",{"_435":577,"_92":494},"cat AGENTS.md && git status --short && git log --oneline -5",{"_383":579,"_362":363,"_385":369},{"_458":580,"_424":566,"_42":581,"_390":582,"_181":462,"_463":-5,"_92":464},"{\"cmd\":\"cat AGENTS.md && git status --short && git log --oneline -5\"}","fc_06a0f46106704c3e016a5b7a651d548190bf198040ee79fa38",{"_395":369},{"_383":584,"_362":363,"_385":369},{"_424":585,"_42":-5,"_390":586,"_427":587,"_92":429},"call_m68VrE9wqy0AC4cGIG9KmKXD",{"_395":369},"Chunk ID: 0bb95d\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 18\nOutput:\n/workspace/first-class-errors\nAGENTS.md\n/workspace/first-class-errors\n",{"_401":589,"_383":590,"_362":363,"_385":369},1784380002215,{"_433":591,"_435":592,"_437":593,"_439":440,"_367":32,"_441":32,"_42":585,"_442":594,"_444":445,"_376":113,"_92":446},"/workspace/first-class-errors\nAGENTS.md\n/workspace/first-class-errors\n","/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g '\"'!bin'\"' -g '\"'!obj'\"' && git status --short && git rev-parse --show-toplevel\"",[595],"27290",{"_435":596,"_92":494},"pwd && rg --files -g 'AGENTS.md' -g '!bin' -g '!obj' && git status --short && git rev-parse --show-toplevel",{"_383":598,"_362":363,"_385":369},{"_458":599,"_424":585,"_42":600,"_390":601,"_181":462,"_463":-5,"_92":464},"{\"cmd\": \"pwd && rg --files -g 'AGENTS.md' -g '!bin' -g '!obj' && git status --short && git rev-parse --show-toplevel\"}","fc_06a0f46106704c3e016a5b7a61bf648190b3fd68eeef97c3bc",{"_395":369},{"_383":603,"_362":363,"_385":369},{"_386":-5,"_407":604,"_42":605,"_390":606,"_411":607,"_92":413},"gAAAAABqW3phG-N84aQZbL6bBTKI-_By4tw13m-zW0nUqyMsFLiarH3pODfaA7tqX5OQrPy3Wm9hIl-dJEEettM5aCk1WZNBoxUR1CfDeJ-FQTNMUDnN54z_bq7-MgkvYU0aZBuMSPez1PaFPfIPKyS9XiDZgtVPCnOT8B2tGUcCjeZ5aL0CFCzaQs4S1_VlpjrYPZUYI8kPloTrow-a-mSXNir4FBkPHBA0koIfM2MenYUDZWA46FIXKqW5R4s_xnaHrIxfe8TgWXr8qW0nzV6ToZCe5utbU_i6jbU-wMsH1RkRiswWlJMsJdwripqEQ-B_mbBqSMjpadjyds1SMEF97SIXAgoLP4ri_jssUziKeFpqy1SRwshEPjaodbhr2eJjuY24Ao8fdoB0WeJYEChypHctlgJDlKcdcm7bFbzF0G8XFI3-Wl2UN7wV6lcLd-lOVkqcbh5hYZTkCVICHVQk2WEN3qH46PpRW3xHODwlxZ7rGZZ2n2Pv8iBqJnM4xm9oq1t5RqH111CDi09ibmnPQzjpqhSQaePMDbUbTL36HpbD0Dm56QeHzdRDBvpCgQ8P6oXv47NS50do9EzHRkJvFEAyykfVnfEKQ8VTs-yD5boIKRdnA9aIO5ILYo7j_tEWgjkvGkoipTr_SfchZPdWWxkNaOJgzEYIfFD2wh9lKwycQLZ3bxnJRYNhgdHURbb4e56eNWm-ZT1CklZMvfIIhPGKgL3e-tKI3nPKMp3sLEnI0_YdH02ojFFEPDEiKYsd0iwVGWFhgGXzGzCEyBNwisfxS7Odv3CzpnDkHCVwHFORVEpgGHDJRPT5fX9jb3MU-IbPviRvGg3BQIBjVAYvZFrx_wgXMxXecuBBBdOKPWMHif4nX-d7-9-zFnL0LnCcsQZ5dtCbJLXGkFgzZTRjPd39N0dMn6qfdKWonprSrlgaT5cRxBmLDRjI8xm9qfRkQv5eYkbgbJ6fyBaOSA-Ms9e5TwtLxyVnoBUruCibYvtkP4dflPfW_NXVOVBY7WEOMXOw3Inz6SDv9VMdkFe3rUnaBCpdP_TdO8AYbihW9rzdR1E8vAy_gAu4bjeS3uJBhiYqfJJUUXsB5n6T9VbwD6WCZCDiyHBwyXu4lhLsjaBnRmRGvd1SJe4LLf5JMaljVoELENjUUodflPmCHO7j1upmTjrYJRjnEwP0Q93ExXVaqwyNmwouCkxa0Hq7OQJodqGPeT7mPp1wbz8mPRQyhnX9MSHc11icNOrpPLipZG5c43nYflw=","rs_06a0f46106704c3e016a5b7a5ff5508190a6b9eb542eb9668c",{"_395":369},[608],{"_46":609,"_92":416},"**Evaluating need for review or PR**",{"_401":611,"_383":612,"_362":363,"_385":369},1784380001779,{"_386":613,"_42":605,"_411":614,"_92":413},[],[609],{"_401":616,"_383":617,"_362":363,"_385":369},1784379998777,{"_618":-5,"_386":619,"_42":620,"_92":621},"clientId",[622],"019f7556-0239-7123-8aab-0d4a042727f8","userMessage",{"_46":623,"_624":625,"_92":46},"\nYou are Codex, assisting with follow-up actions on a GitHub pull request.\n\nInput blocks\n------------\n<TRIGGER>…</TRIGGER> # The comment or event that invoked you\n<PR_INFO>…</PR_INFO> # PR metadata (title, branches, SHAs, status, etc.)\n<PR_COMMENT>…</PR_COMMENT> # Comments / Reviews for the PR\n\nPossible triggers\n• A user mentions you (@codex)\n• A reviewer requests changes\n• An automated or internal system asks you to review / update\n\nGuidelines\n1. Read the <TRIGGER> block first and treat it as the primary intent.\n2. Always consult <PR_INFO> and <PR_COMMENT> to interpret and validate the trigger; use only context that materially affects your decision and ignore the rest.\n3. If the trigger comes from a comment thread, the first <PR_COMMENT> block will be combined earlier comments from the same thread, clearly indicated with `Comments in the same thread`.\n4. Remaining <PR_COMMENT> blocks are in chronological order, oldest first, one block per comment.\n5. When the trigger relates to CI/build status (e.g., “help me fix CI”), incorporate CI/status details found in <PR_COMMENT> as supporting context.\n6. If code change is needed, generate a **new** PR with the requested changes. The PR title and message should summarize the changes **on top** of the original pull request.\n<TRIGGER>@codex no more issues ?</TRIGGER><PR_INFO>{\"title\":\"feat(binder): configure a host-agnostic default for Bind.PropertiesOf\",\"body\":\"## Summary\\n\\n`Bind.PropertiesOf(request)` binds with `RequestBinderOptions.Default`, which was a fixed built-in — so the only way to bind with custom options (a naming policy, the overridable structural codes from #147) was `Bind.WithOptions(...)`, threading the configured entry point through every call or resolving it from DI. This makes `RequestBinderOptions.Default` a **settable application default**, configured once at startup with **no DI container needed** (a CLI or worker can set it), and **frozen on first use** so it cannot drift once requests are flowing. `Bind` gains no configuration surface; a per-call `Bind.WithOptions(...)` still overrides it.\\n\\n## Type of change\\n\\n* [ ] Bug fix\\n* [x] New feature\\n* [ ] Breaking change\\n* [ ] Refactoring\\n* [ ] Analyzer / diagnostic change\\n* [x] Tests\\n* [x] Documentation\\n\\n## Changes\\n\\n* Make `RequestBinderOptions.Default` a settable property (was get-only). Setting it rejects `null` and throws once the first bind has read it (**frozen on first use** — the `JsonSerializerOptions` discipline), so it is configured at composition time and cannot change at runtime. The value is an immutable `RequestBinderOptions`, so there is no shared-mutable-settings hazard.\\n* `Bind.PropertiesOf` already reads `RequestBinderOptions.Default`, so `Bind` is unchanged — no configuration method pollutes the `Bind.` surface. `Bind.WithOptions(o)` still overrides per call.\\n* Add an internal, scoped, test-only override (`OverrideDefaultForTests`, backed by an `AsyncLocal`) so the library's own suite stays parallel-safe without mutating the process default — the same seam pattern as the ambient clock.\\n* Add `DefaultOptionsTests` (7 tests): `Bind.PropertiesOf` binds with the configured default (naming + codes) without `WithOptions`; falls back to the built-in outside the scope; a per-call `WithOptions` wins; the setter rejects `null` and throws after first use.\\n* Document configuring the application-wide default in the RequestBinder guide (EN + FR), and add **ADR-0017** (EN + FR).\\n\\n## Testing\\n\\n* [x] `dotnet build FirstClassErrors.sln` — succeeded, 0 warnings / 0 errors.\\n* [x] `dotnet test FirstClassErrors.sln` — all green (998 total, 0 failed); the freeze and `AsyncLocal` seam do not leak into the other binder tests.\\n* [x] Analyzer tests pass (`FirstClassErrors.Analyzers.UnitTests`) — 85 passed.\\n\\n## Documentation\\n\\n* [x] Public API / error documentation updated — XML docs on `RequestBinderOptions.Default` and the test seam.\\n* [x] README / `doc/` updated — RequestBinder guide (EN), new \\\"Configuring the default for the whole application\\\" section.\\n* [x] French translation updated — the RequestBinder guide (`RequestBinder.fr.md`) and ADR-0017 (`.fr.md`), in lockstep.\\n* [ ] No documentation change required\\n\\n## Architecture decisions\\n\\n* [ ] No architectural decision in this pull request\\n* [x] New decision recorded — ADR drafted as `Proposed`: ADR-0017\\n* [ ] Supersedes an existing ADR — successor proposed, status not flipped: ADR-____\\n* [ ] ⚠️ Conflicts with an existing ADR — flagged for the maintainer: ADR-____\\n\\nADR-0017 records the decision and is **`Accepted`** (per the maintainer). It revisits the process-wide ambient default that ADR-0012 had weighed and rejected as an alternative, adopting it with mitigations (frozen-on-first-use, immutable value, `AsyncLocal` test seam). **ADR-0012 is not superseded** — its own decision (a binder's options are fixed at its entry point) is unchanged and stays `Accepted`.\\n\\n## Related issues\\n\\nCloses #181\\n\\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\\n\\n---\\n_Generated by [Claude Code](https://claude.ai/code/session_01J12ghrzM1xiAKw4LETJDqr)_\",\"base_ref\":\"12bf086c4aa63e8a19a90146c0a644977187f2b2\",\"head_ref\":\"21bf130fe63fb6bb9aa56e2c429513349c05a733\",\"merge_commit_sha\":null,\"type\":\"pull_request_info\"}</PR_INFO><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\\n\\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"FirstClassErrors.RequestBinder/RequestBinderOptions.cs\",\"side\":\"RIGHT\",\"line\":null}</PR_COMMENT><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `a74f384183`\\n \\n\\n<details> <summary>ℹ️ About Codex in GitHub</summary>\\n \\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</details>\",\"path\":null,\"side\":null,\"line\":null}</PR_COMMENT><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"Resolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \\\"first bind on the old default, later binds on the new\\\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\\n\\n---\\n_Generated by [Claude Code](https://claude.ai/code)_\",\"path\":\"FirstClassErrors.RequestBinder/RequestBinderOptions.cs\",\"side\":\"RIGHT\",\"line\":null}</PR_COMMENT>","text_elements",[],{"_383":627,"_362":363,"_385":369},{"_386":628,"_388":-5,"_42":-5,"_390":629,"_392":-5,"_96":307,"_92":394},[630],{"_395":369},{"_46":623,"_92":631},"input_text",{"_383":633,"_362":363,"_385":369},{"_386":634,"_388":-5,"_42":-5,"_390":635,"_392":-5,"_96":307,"_92":394},[636,637],{"_395":369},{"_46":639,"_92":631},{"_46":638,"_92":631},"<environment_context>\n <cwd>/workspace/first-class-errors</cwd>\n <shell>bash</shell>\n <current_date>2026-07-18</current_date>\n <timezone>Etc/UTC</timezone>\n <filesystem><workspace_roots><root>/workspace/first-class-errors</root></workspace_roots><permission_profile type=\"disabled\"><file_system type=\"unrestricted\" /></permission_profile></filesystem>\n</environment_context>","# AGENTS.md instructions for /workspace/first-class-errors\n\n<INSTRUCTIONS>\n# AGENTS.md — FirstClassErrors\n\nInstructions for automated agents (OpenAI Codex and others) in this repository.\nTwo roles are covered: **writing code** and **reviewing pull requests**.\n\n## Project orientation (code changes)\n\n- .NET Standard 2.0 library. Errors are first-class, documented, diagnosable concepts.\n- Build: `dotnet build FirstClassErrors.sln`\n- Test: `dotnet test FirstClassErrors.sln` (analyzer tests: `dotnet test FirstClassErrors.Analyzers.UnitTests`).\n- Repository language is **English** (code, comments, commits, PRs, issues, and\n review comments). French lives only in `doc/handwritten/for-users/README.fr.md` and must stay in sync\n with the English README.\n- `Error` and its hierarchy, `ErrorCode`, `ErrorContextKey`, `Outcome`/`Outcome<T>`\n and any value object are **`class`, never `struct`** — a struct exposes a\n zero-initialized default that bypasses validating constructors. Enums\n (`Transience`, `ErrorOrigin`) are the only value-type exception.\n- Keep changes small and focused. Treat renamed error codes, diagnostic IDs and\n public types as breaking changes.\n\n## Architecture decisions (code changes)\n\nBefore finalizing a pull request, check it against the ADR base under\n`doc/handwritten/for-maintainers/adr/` (format and conventions: `doc/handwritten/for-maintainers/adr/README.md`). An ADR\nrecords a **significant, lasting decision** — one a future maintainer would ask\n\"why did they do it this way?\" about — not every change. Apply the README's test:\n*if the implementation changed but the decision stood, the ADR should not need\nediting.* Most pull requests embark no such decision; the **check** is mandatory,\nthe **ADR** is not.\n\nThe check has three outcomes — state the result in the pull request description:\n\n- **Create** — the pull request embarks a new lasting decision (a public API\n contract, a cross-cutting invariant, a supported-platform floor, a dependency or\n security/compatibility policy, and the like). Draft one ADR per decision from\n `template.md` with **`Status: Proposed`**, add it to the index in `README.md`,\n and link it from the pull request.\n- **Supersede** — the decision replaces one already recorded. Never edit the\n existing ADR in place or change its status yourself: name it in the pull request,\n draft the successor as `Proposed`, and leave the status flip to the maintainer.\n Accepted ADRs are immutable historical records.\n- **Alert** — the pull request contradicts an accepted ADR. Do not proceed\n silently: flag it in the description — `⚠️ Conflicts with ADR-NNNN (<title>)` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n\n</INSTRUCTIONS>",{"_383":641,"_362":363,"_385":369},{"_386":642,"_388":-5,"_42":-5,"_390":643,"_392":-5,"_96":644,"_92":394},[645,646],{"_395":369},"developer",{"_46":648,"_92":631},{"_46":647,"_92":631},"<skills_instructions>\n## Skills\nA skill is a set of instructions provided through a `SKILL.md` source. Below is the list of skills that can be used. Each entry includes a name, description, and source locator. `file` locators are on the host filesystem, `environment resource` locators are owned by an execution environment, `orchestrator resource` locators are opaque non-filesystem resources, and `custom resource` locators use their provider's access mechanism.\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, asks about Codex itself or choosing Codex surfaces, needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; use OpenAI docs MCP tools for non-Codex docs questions, use the Codex manual helper first for broad Codex self-knowledge, and restrict 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, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries for plugin ordering and availability metadata, or update an existing local plugin during development with the CLI-driven cachebuster and reinstall flow. (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 $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /opt/codex/skills/.system/skill-installer/SKILL.md)\n### How to use skills\n- Discovery: The list above is the skills available in this session (name + description + source locator). `file` entries live on the host filesystem, `environment resource` entries are owned by their execution environment, `orchestrator resource` entries must be accessed through `skills.list` and `skills.read`, and `custom resource` entries use their provider's access mechanism.\n- Trigger rules: If the user names a skill (with `$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 its source 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, the main agent must read its `SKILL.md` completely before taking task actions. For a `file` entry, open the listed path. For an `environment resource`, use the filesystem of the owning environment. For an `orchestrator resource`, call `skills.list` with `{\"authority\":{\"kind\":\"orchestrator\"}}`, select the matching package, and pass its `main_resource` to `skills.read`. If a read is truncated or paginated, continue until EOF.\n 2) When `SKILL.md` references another resource, use the same access mechanism. Resolve relative paths against a filesystem-backed skill directory. For orchestrator skills, pass the exact referenced resource identifier with the same authority and package to `skills.read`; do not treat `skill://` identifiers as filesystem paths.\n 3) If `SKILL.md` points to extra folders such as `references/`, use its routing instructions to identify the resources required for the task. The main agent must read each required instruction or reference file itself before acting on it. Do not delegate reading, summarizing, or interpreting skill instructions to a subagent. Subagents may still perform task work when the selected skill allows it.\n 4) For filesystem-backed skills, prefer running or patching provided scripts instead of retyping large code blocks. For orchestrator skills, use `skills.read` and the available tools; do not invent a local path.\n 5) Reuse provided assets or templates through the same source access mechanism instead of recreating them.\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 - Progressive disclosure applies to selecting relevant files, not partially reading a selected instruction file. Do not load unrelated references, scripts, or assets.\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</skills_instructions>","<permissions instructions>\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</permissions instructions>","turn/started",{"_362":363,"_87":651},{"_103":-5,"_42":369,"_370":652,"_372":373,"_374":375,"_376":653},[],"inProgress",{"_376":655,"_362":363},{"_656":657,"_92":658},"activeFlags",[],"active","thread/started",{"_661":662},"thread",{"_663":-5,"_664":-5,"_665":666,"_667":375,"_439":440,"_668":15,"_669":-5,"_670":-5,"_671":-5,"_672":673,"_42":363,"_674":675,"_181":-5,"_676":-5,"_161":677,"_678":199,"_679":375,"_680":363,"_444":681,"_376":682,"_683":-5,"_77":684,"_685":375},"agentNickname","agentRole","cliVersion","0.144.0-alpha.4","createdAt","ephemeral","extra","forkedFromId","gitInfo","historyMode","legacy","modelProvider","openai","parentThreadId","/opt/codex/sessions/2026/07/18/rollout-2026-07-18T13-06-36-019f7555-f91f-7621-8e4d-00e812db5f45.jsonl","preview","recencyAt","sessionId","vscode",{"_92":380},"threadSource",[],"updatedAt",[],"messages",[689],{"_42":690,"_691":692,"_693":694,"_695":694,"_386":696,"_376":697,"_388":-5,"_698":32,"_699":700,"_701":702,"_703":-5},"b7015f55-39d7-442f-93b9-1ead33c0963f","author",{"_96":307,"_181":-5,"_699":712},"create_time",1784379995.831677,"update_time",{"_708":46,"_709":710},"finished_successfully","weight","metadata",{"_704":705},"recipient","all","channel","l1239dk1",{"_706":707},"inline_comments",[],"content_type","parts",[711],"@codex no more issues ?\nfeat(binder): configure a host-agnostic default for Bind.PropertiesOf\n\n## Summary\n\n`Bind.PropertiesOf(request)` binds with `RequestBinderOptions.Default`, which was a fixed built-in — so the only way to bind with custom options (a naming policy, the overridable structural codes from #147) was `Bind.WithOptions(...)`, threading the configured entry point through every call or resolving it from DI. This makes `RequestBinderOptions.Default` a **settable application default**, configured once at startup with **no DI container needed** (a CLI or worker can set it), and **frozen on first use** so it cannot drift once requests are flowing. `Bind` gains no configuration surface; a per-call `Bind.WithOptions(...)` still overrides it.\n\n## Type of change\n\n* [ ] Bug fix\n* [x] New feature\n* [ ] Breaking change\n* [ ] Refactoring\n* [ ] Analyzer / diagnostic change\n* [x] Tests\n* [x] Documentation\n\n## Changes\n\n* Make `RequestBinderOptions.Default` a settable property (was get-only). Setting it rejects `null` and throws once the first bind has read it (**frozen on first use** — the `JsonSerializerOptions` discipline), so it is configured at composition time and cannot change at runtime. The value is an immutable `RequestBinderOptions`, so there is no shared-mutable-settings hazard.\n* `Bind.PropertiesOf` already reads `RequestBinderOptions.Default`, so `Bind` is unchanged — no configuration method pollutes the `Bind.` surface. `Bind.WithOptions(o)` still overrides per call.\n* Add an internal, scoped, test-only override (`OverrideDefaultForTests`, backed by an `AsyncLocal`) so the library's own suite stays parallel-safe without mutating the process default — the same seam pattern as the ambient clock.\n* Add `DefaultOptionsTests` (7 tests): `Bind.PropertiesOf` binds with the configured default (naming + codes) without `WithOptions`; falls back to the built-in outside the scope; a per-call `WithOptions` wins; the setter rejects `null` and throws after first use.\n* Document configuring the application-wide default in the RequestBinder guide (EN + FR), and add **ADR-0017** (EN + FR).\n\n## Testing\n\n* [x] `dotnet build FirstClassErrors.sln` — succeeded, 0 warnings / 0 errors.\n* [x] `dotnet test FirstClassErrors.sln` — all green (998 total, 0 failed); the freeze and `AsyncLocal` seam do not leak into the other binder tests.\n* [x] Analyzer tests pass (`FirstClassErrors.Analyzers.UnitTests`) — 85 passed.\n\n## Documentation\n\n* [x] Public API / error documentation updated — XML docs on `RequestBinderOptions.Default` and the test seam.\n* [x] README / `doc/` updated — RequestBinder guide (EN), new \"Configuring the default for the whole application\" section.\n* [x] French translation updated — the RequestBinder guide (`RequestBinder.fr.md`) and ADR-0017 (`.fr.md`), in lockstep.\n* [ ] No documentation change required\n\n## Architecture decisions\n\n* [ ] No architectural decision in this pull request\n* [x] New decision recorded — ADR drafted as `Proposed`: ADR-0017\n* [ ] Supersedes an existing ADR — successor proposed, status not flipped: ADR-____\n* [ ] ⚠️ Conflicts with an existing ADR — flagged for the maintainer: ADR-____\n\nADR-0017 records the decision and is **`Accepted`** (per the maintainer). It revisits the process-wide ambient default that ADR-0012 had weighed and rejected as an alternative, adopting it with mitigations (frozen-on-first-use, immutable value, `AsyncLocal` test seam). **ADR-0012 is not superseded** — its own decision (a binder's options are fixed at its entry point) is unchanged and stays `Accepted`.\n\n## Related issues\n\nCloses #181\n\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\n\n---\n_Generated by [Claude Code](https://claude.ai/code/session_01J12ghrzM1xiAKw4LETJDqr)_\n**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\n\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `a74f384183`\n \n\n<details> <summary>ℹ️ About Codex in GitHub</summary>\n \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</details>\nResolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \"first bind on the old default, later binds on the new\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_",{},"created",1784380032.0749006,"Completing the task","event_type","info",{"_92":394,"_96":93,"_386":895},{"_92":720,"_721":722},"partial_repo_snapshot","files",[723,724],{"_161":804,"_726":-5,"_727":805,"_729":-5},{"_161":725,"_726":-5,"_727":728,"_729":-5},"FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs","contents","line_range_contents",[730],"missing_reason",{"_731":732,"_733":734,"_386":735,"_736":59},"line_range_start",1,"line_range_end",106,[737,199,738,199,739,199,740,199,741,742,743,744,745,746,747,199,748,749,750,199,751,752,753,199,754,750,199,755,199,756,757,758,759,760,199,761,762,199,763,764,765,750,199,766,767,768,199,769,199,770,771,750,199,772,773,774,775,776,777,778,779,199,780,781,199,782,765,750,199,783,199,784,785,786,787,750,199,788,199,789,790,791,750,199,792,793,794,199,795,796,750,199,797,798,799,750,199,800,199,801,802,765,199,750,199,803],"contains_end_of_file","#region Usings declarations","using NFluent;","#endregion","namespace FirstClassErrors.RequestBinder.UnitTests;","/// <summary>","/// The application-wide <see cref=\"RequestBinderOptions.Default\" />: it is what <see cref=\"Bind.PropertiesOf{TRequest}\" />","/// binds with, configurable once at startup and frozen on first use. These tests inject it through the scoped,","/// parallel-safe test seam (<c>OverrideDefaultForTests</c>) so they never mutate the process default — the binder","/// suite keeps seeing the built-in default.","/// </summary>","public sealed class DefaultOptionsTests {"," private static BookingRequest MissingEmail() {"," return new BookingRequest(null, \"R\", null, null, null, null, null);"," }"," private static Error BindMissingEmail(RequestBinderEnvelopeStage<BookingRequest> start) {"," var bind = start.FailWith(BookingEnvelopeError.CommandInvalid);"," bind.SimpleProperty(r => r.GuestEmail).AsRequired(EmailAddress.Parse);"," return bind.New(_ => \"x\").Error!.InnerErrors.Single();"," // ── Bind.PropertiesOf binds with the configured default ───────────────────────────────────────────────"," [Fact(DisplayName = \"Bind.PropertiesOf binds with the configured default options — naming and structural codes — without WithOptions.\")]"," public void BindPropertiesOfUsesTheConfiguredDefault() {"," var configured = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"ACME_ARGUMENT_REQUIRED\"),"," ErrorCode.Create(\"ACME_ARGUMENT_INVALID\"));"," using (RequestBinderOptions.OverrideDefaultForTests(configured)) {"," Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"ACME_ARGUMENT_REQUIRED\");"," Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"guest_email\");"," }"," [Fact(DisplayName = \"Outside the configured scope, Bind.PropertiesOf falls back to the built-in default.\")]"," public void OutsideScopeFallsBackToBuiltIn() {"," using (RequestBinderOptions.OverrideDefaultForTests(new RequestBinderOptions(new SnakeCaseNameProvider()))) { }"," Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"REQUEST_ARGUMENT_REQUIRED\");"," Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"GuestEmail\");"," [Fact(DisplayName = \"A per-call Bind.WithOptions overrides the configured default.\")]"," public void WithOptionsWinsOverTheConfiguredDefault() {"," var appDefault = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"DEFAULT_REQUIRED\"),"," ErrorCode.Create(\"DEFAULT_INVALID\"));"," var perCall = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"PERCALL_REQUIRED\"),"," ErrorCode.Create(\"PERCALL_INVALID\"));"," using (RequestBinderOptions.OverrideDefaultForTests(appDefault)) {"," Error error = BindMissingEmail(Bind.WithOptions(perCall).PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"PERCALL_REQUIRED\");"," // ── The default resolves to the built-in when unconfigured ────────────────────────────────────────────"," [Fact(DisplayName = \"Unconfigured, RequestBinderOptions.Default is the built-in default (default structural codes).\")]"," public void DefaultIsBuiltInWhenUnconfigured() {"," Check.That(RequestBinderOptions.Default.ArgumentRequiredCode == RequestBindingError.DefaultArgumentRequiredCode).IsTrue();"," Check.That(RequestBinderOptions.Default.ArgumentInvalidCode == RequestBindingError.DefaultArgumentInvalidCode).IsTrue();"," // ── Setter contract: null-rejecting and frozen-after-first-use ────────────────────────────────────────"," [Fact(DisplayName = \"Setting RequestBinderOptions.Default to null throws ArgumentNullException.\")]"," public void SettingNullThrows() {"," Check.ThatCode(() => RequestBinderOptions.Default = null!).Throws<ArgumentNullException>();"," [Fact(DisplayName = \"Configuring RequestBinderOptions.Default after the first bind has read it throws — the default is frozen.\")]"," public void ConfiguringAfterFirstUseThrows() {"," _ = RequestBinderOptions.Default; // reading it (as the first bind does) freezes it; idempotent"," Check.ThatCode(() => RequestBinderOptions.Default = new RequestBinderOptions(new SnakeCaseNameProvider()))"," .Throws<InvalidOperationException>();"," [Fact(DisplayName = \"The test seam rejects a null options.\")]"," public void OverrideForTestsRejectsNull() {"," Check.ThatCode(() => RequestBinderOptions.OverrideDefaultForTests(null!)).Throws<ArgumentNullException>();"," private sealed class SnakeCaseNameProvider : IArgumentNameProvider {"," public string GetArgumentNameFrom(System.Reflection.PropertyInfo property) {"," return string.Concat(property.Name.Select((c, i) => i > 0 && char.IsUpper(c) ? \"_\" + char.ToLowerInvariant(c) : char.ToLowerInvariant(c).ToString()));","}","FirstClassErrors.RequestBinder/RequestBinderOptions.cs",[806],{"_731":732,"_733":807,"_386":808,"_736":59},132,[809,199,741,810,811,812,813,746,814,199,815,199,816,817,818,819,820,199,821,822,823,824,825,826,827,828,829,830,831,832,833,199,834,835,836,837,838,199,839,840,765,841,842,199,837,843,844,845,846,199,847,840,765,750,199,821,848,849,850,851,852,827,853,854,855,856,857,199,858,859,199,860,750,199,861,199,862,199,863,864,865,866,867,868,869,870,871,872,869,873,874,875,199,876,877,878,750,199,861,199,879,880,199,881,882,199,883,884,199,885,199,886,199,887,888,199,889,890,765,199,891,892,199,893,894,765,199,750,199,861,199,803],"namespace FirstClassErrors.RequestBinder;","/// The binding options of a <see cref=\"RequestBinder{TRequest}\" />. A binder's options are fixed once, before","/// binding begins — through <see cref=\"Bind.WithOptions\" /> or the application-wide <see cref=\"Default\" /> — and","/// inherited by nested binders; they never change while a binder is binding. The process-wide","/// <see cref=\"Default\" /> may be configured once at application startup and is frozen on first use.","public sealed class RequestBinderOptions {"," #region Statics members declarations"," private static readonly RequestBinderOptions BuiltIn = new(new DefaultArgumentNameProvider());"," private static readonly AsyncLocal<RequestBinderOptions?> TestOverride = new();"," private static readonly object Gate = new();"," private static RequestBinderOptions _default = BuiltIn;"," private static bool _frozen;"," /// <summary>"," /// The application-wide default options that <see cref=\"Bind.PropertiesOf{TRequest}\" /> binds with. Assign it"," /// once at application startup — before any binding — to configure the binder host-wide without threading"," /// options through every call; a per-call <see cref=\"Bind.WithOptions\" /> still overrides it. The first bind"," /// reads it and thereby freezes it, so the default cannot drift once binding has begun. Defaults to the"," /// built-in options (C# property names and the default structural codes)."," /// </summary>"," /// <exception cref=\"ArgumentNullException\">Thrown when set to <c>null</c>.</exception>"," /// <exception cref=\"InvalidOperationException\">Thrown when set after the first bind has already read it.</exception>"," public static RequestBinderOptions Default {"," get {"," RequestBinderOptions? overridden = TestOverride.Value;"," if (overridden is not null) { return overridden; }"," // Freeze and read under the gate: a concurrent set() either wins entirely (before any read froze the"," // default) or observes the freeze and throws — never a torn \"first bind on the old default, later binds"," // on the new one\". The gate is uncontended once the default is configured at startup."," lock (Gate) {"," _frozen = true;"," return _default;"," }"," set {"," if (value is null) { throw new ArgumentNullException(nameof(value)); }"," if (_frozen) {"," throw new InvalidOperationException("," \"RequestBinderOptions.Default was already read by a binding; configure it once at application startup, before the first bind.\");"," }"," _default = value;"," /// Test-only seam: overrides <see cref=\"Default\" /> for the current execution context until the returned scope"," /// is disposed. Backed by an <see cref=\"AsyncLocal{T}\" />, so it flows with the test's context and never leaks"," /// across tests running in parallel — the same pattern as the ambient clock. It does not touch the production"," /// default and never freezes it. Internal, for the library's own tests; a consumer-facing seam belongs in a"," /// dedicated testing package."," /// <param name=\"options\">The options to bind with while the scope is active.</param>"," /// <returns>A scope that restores the previous override when disposed.</returns>"," /// <exception cref=\"ArgumentNullException\">Thrown when <paramref name=\"options\" /> is <c>null</c>.</exception>"," internal static IDisposable OverrideDefaultForTests(RequestBinderOptions options) {"," if (options is null) { throw new ArgumentNullException(nameof(options)); }"," RequestBinderOptions? previous = TestOverride.Value;"," TestOverride.Value = options;"," return new TestOverrideScope(previous);"," #endregion"," #region Constructors declarations"," /// <summary>Instantiates options with the given argument-name provider and, optionally, custom structural error codes.</summary>"," /// <param name=\"argumentNameProvider\">The provider resolving the argument name of a bound DTO property.</param>"," /// <param name=\"argumentRequiredCode\">"," /// The code raised when a required argument is missing. <c>null</c> keeps the default"," /// <see cref=\"RequestBindingError.DefaultArgumentRequiredCode\" /> (<c>REQUEST_ARGUMENT_REQUIRED</c>); pass a"," /// code of your own catalog's convention to keep the binder's failures consistent with your other error codes."," /// </param>"," /// <param name=\"argumentInvalidCode\">"," /// The code raised when an argument is present but fails to convert. <c>null</c> keeps the default"," /// <see cref=\"RequestBindingError.DefaultArgumentInvalidCode\" /> (<c>REQUEST_ARGUMENT_INVALID</c>)."," /// <exception cref=\"ArgumentNullException\">Thrown when <paramref name=\"argumentNameProvider\" /> is <c>null</c>.</exception>"," public RequestBinderOptions(IArgumentNameProvider argumentNameProvider, ErrorCode? argumentRequiredCode = null, ErrorCode? argumentInvalidCode = null) {"," if (argumentNameProvider is null) { throw new ArgumentNullException(nameof(argumentNameProvider)); }"," ArgumentNameProvider = argumentNameProvider;"," ArgumentRequiredCode = argumentRequiredCode ?? RequestBindingError.DefaultArgumentRequiredCode;"," ArgumentInvalidCode = argumentInvalidCode ?? RequestBindingError.DefaultArgumentInvalidCode;"," /// <summary>The provider resolving the argument name of a bound DTO property (see <see cref=\"IArgumentNameProvider\" />).</summary>"," public IArgumentNameProvider ArgumentNameProvider { get; }"," /// <summary>The code the binder raises when a required argument is missing (defaults to <c>REQUEST_ARGUMENT_REQUIRED</c>).</summary>"," public ErrorCode ArgumentRequiredCode { get; }"," /// <summary>The code the binder raises when an argument is present but fails to convert (defaults to <c>REQUEST_ARGUMENT_INVALID</c>).</summary>"," public ErrorCode ArgumentInvalidCode { get; }"," #region Nested types"," private sealed class TestOverrideScope : IDisposable {"," private readonly RequestBinderOptions? _previous;"," private bool _disposed;"," internal TestOverrideScope(RequestBinderOptions? previous) {"," _previous = previous;"," public void Dispose() {"," if (_disposed) { return; }"," _disposed = true;"," TestOverride.Value = _previous;",[896,897,898,899,900,901],{"_708":46,"_46":911},{"_708":903,"_161":804,"_731":909,"_733":910},{"_708":903,"_161":804,"_731":907,"_733":908},{"_708":46,"_46":906},{"_708":903,"_161":725,"_731":904,"_733":905},{"_708":46,"_46":902},"\n\n**Testing / checks**\n* ✅ `git status --short`\n* ✅ `git diff --stat 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD`\n* ✅ `git diff --name-only 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD`\n* ⚠️ `dotnet test FirstClassErrors.RequestBinder.UnitTests/FirstClassErrors.RequestBinder.UnitTests.csproj --no-restore` — could not run because `dotnet` is not installed in this environment.","repo_file_citation",30,95,"\n\nI also checked the related tests around the scoped test override, default fallback, per-call override, null rejection, and frozen-after-first-use behavior; I did not find another actionable issue in that area. ",28,53,15,17,"No blocking issue found in my follow-up review.\n\nThe previously reported concurrency issue appears resolved: `RequestBinderOptions.Default` now uses the same `Gate` lock for both the freeze/read path and the setter path, so a setter can either complete before the first read freezes the default, or observe `_frozen` and throw after the first read. ",{"_92":307,"_42":84,"_96":307,"_914":915,"_916":917,"_918":919,"_132":-5,"_119":920},[83],"input_items",[939,940,941,942,943],"external_post_config",{"_921":922,"_244":245,"_923":287,"_256":-5,"_924":238,"_925":-5,"_926":-5,"_927":928,"_929":930,"_931":-5,"_932":-5,"_933":934,"_935":15,"_936":59,"_937":54,"_938":15},"user_model_slug","slug",1784379990.252363,"installation_id",72237377,"pr_number","repo_id","gitlab_service_account_project_id","review_trigger","comment_id",5011364621,"comment_type","issue","pr_write_guard_token","pending_pr_reaction_id","pending_comment_reaction_id",384514836,"comment_if_no_findings","comment_on_error","share_url","is_parallel_review",{"_92":394,"_96":307,"_386":954},{"_294":295,"_296":297,"_951":301,"_952":129,"_303":-5,"_92":953},{"_92":944,"_296":950,"_161":804,"_946":947,"_948":-5},{"_92":944,"_296":949,"_161":-5,"_946":-5,"_948":-5},{"_92":944,"_296":945,"_161":804,"_946":947,"_948":-5},"pull_request_comment","Resolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \"first bind on the old default, later binds on the new\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","side","RIGHT","line","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `a74f384183`\n \n\n<details> <summary>ℹ️ About Codex in GitHub</summary>\n \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</details>","**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\n\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\n\nUseful? 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\n 4\t/// The binding options of a . A binder's options are fixed once, before\n 5\t/// binding begins — through or the application-wide — and\n 6\t/// inherited by nested binders; they never change while a binder is binding. The process-wide\n 7\t/// may be configured once at application startup and is frozen on first use.\n 8\t///

\n 9\tpublic sealed class RequestBinderOptions {\n 10\t\n 11\t #region Statics members declarations\n 12\t\n 13\t private static readonly RequestBinderOptions BuiltIn = new(new DefaultArgumentNameProvider());\n 14\t private static readonly AsyncLocal TestOverride = new();\n 15\t private static readonly object Gate = new();\n 16\t private static RequestBinderOptions _default = BuiltIn;\n 17\t private static bool _frozen;\n 18\t\n 19\t ///

\n 20\t /// The application-wide default options that binds with. Assign it\n 21\t /// once at application startup — before any binding — to configure the binder host-wide without threading\n 22\t /// options through every call; a per-call still overrides it. The first bind\n 23\t /// reads it and thereby freezes it, so the default cannot drift once binding has begun. Defaults to the\n 24\t /// built-in options (C# property names and the default structural codes).\n 25\t ///

\n 26\t /// Thrown when set to null.\n 27\t /// Thrown when set after the first bind has already read it.\n 28\t public static RequestBinderOptions Default {\n 29\t get {\n 30\t RequestBinderOptions? overridden = TestOverride.Value;\n 31\t if (overridden is not null) { return overridden; }\n 32\t\n 33\t // Freeze and read under the gate: a concurrent set() either wins entirely (before any read froze the\n 34\t // default) or observes the freeze and throws — never a torn \"first bind on the old default, later binds\n 35\t // on the new one\". The gate is uncontended once the default is configured at startup.\n 36\t lock (Gate) {\n 37\t _frozen = true;\n 38\t\n 39\t return _default;\n 40\t }\n 41\t }\n 42\t set {\n 43\t if (value is null) { throw new ArgumentNullException(nameof(value)); }\n 44\t\n 45\t lock (Gate) {\n 46\t if (_frozen) {\n 47\t throw new InvalidOperationException(\n 48\t \"RequestBinderOptions.Default was already read by a binding; configure it once at application startup, before the first bind.\");\n 49\t }\n 50\t\n 51\t _default = value;\n 52\t }\n 53\t }\n 54\t }\n 55\t\n 56\t ///

\n 57\t /// Test-only seam: overrides for the current execution context until the returned scope\n 58\t /// is disposed. Backed by an , so it flows with the test's context and never leaks\n 59\t /// across tests running in parallel — the same pattern as the ambient clock. It does not touch the production\n 60\t /// default and never freezes it. Internal, for the library's own tests; a consumer-facing seam belongs in a\n 61\t /// dedicated testing package.\n 62\t ///

\n 63\t /// The options to bind with while the scope is active.\n 64\t /// A scope that restores the previous override when disposed.\n 65\t /// Thrown when is null.\n 66\t internal static IDisposable OverrideDefaultForTests(RequestBinderOptions options) {\n 67\t if (options is null) { throw new ArgumentNullException(nameof(options)); }\n 68\t\n 69\t RequestBinderOptions? previous = TestOverride.Value;\n 70\t TestOverride.Value = options;\n 71\t\n 72\t return new TestOverrideScope(previous);\n 73\t }\n 74\t\n 75\t #endregion\n 76\t\n 77\t #region Constructors declarations\n 78\t\n 79\t ///

Instantiates options with the given argument-name provider and, optionally, custom structural error codes.

\n 80\t /// The provider resolving the argument name of a bound DTO property.\n 81\t /// \n 82\t /// The code raised when a required argument is missing. null keeps the default\n 83\t /// (REQUEST_ARGUMENT_REQUIRED); pass a\n 84\t /// code of your own catalog's convention to keep the binder's failures consistent with your other error codes.\n 85\t /// \n 86\t /// \n 87\t /// The code raised when an argument is present but fails to convert. null keeps the default\n 88\t /// (REQUEST_ARGUMENT_INVALID).\n 89\t /// \n 90\t /// Thrown when is null.\n 91\t public RequestBinderOptions(IArgumentNameProvider argumentNameProvider, ErrorCode? argumentRequiredCode = null, ErrorCode? argumentInvalidCode = null) {\n 92\t if (argumentNameProvider is null) { throw new ArgumentNullException(nameof(argumentNameProvider)); }\n 93\t\n 94\t ArgumentNameProvider = argumentNameProvider;\n 95\t ArgumentRequiredCode = argumentRequiredCode ?? RequestBindingError.DefaultArgumentRequiredCode;\n 96\t ArgumentInvalidCode = argumentInvalidCode ?? RequestBindingError.DefaultArgumentInvalidCode;\n 97\t }\n 98\t\n 99\t #endregion\n 100\t\n 101\t ///

The provider resolving the argument name of a bound DTO property (see ).

\n 102\t public IArgumentNameProvider ArgumentNameProvider { get; }\n 103\t\n 104\t ///

The code the binder raises when a required argument is missing (defaults to REQUEST_ARGUMENT_REQUIRED).

\n 105\t public ErrorCode ArgumentRequiredCode { get; }\n 106\t\n 107\t ///

The code the binder raises when an argument is present but fails to convert (defaults to REQUEST_ARGUMENT_INVALID).

\n 108\t public ErrorCode ArgumentInvalidCode { get; }\n 109\t\n 110\t #region Nested types\n 111\t\n 112\t private sealed class TestOverrideScope : IDisposable {\n 113\t\n 114\t private readonly RequestBinderOptions? _previous;\n 115\t private bool _disposed;\n 116\t\n 117\t internal TestOverrideScope(RequestBinderOptions? previous) {\n 118\t _previous = previous;\n 119\t }\n 120\t\n 121\t public void Dispose() {\n 122\t if (_disposed) { return; }\n 123\t\n 124\t _disposed = true;\n 125\t TestOverride.Value = _previous;\n 126\t }\n 127\t\n 128\t }\n 129\t\n 130\t #endregion\n 1\t#region Usings declarations\n 2\t\n 3\tusing NFluent;\n 4\t\n 5\t#endregion\n 6\t\n 7\tnamespace FirstClassErrors.RequestBinder.UnitTests;\n 8\t\n 9\t///

\n 10\t/// The application-wide : it is what \n 11\t/// binds with, configurable once at startup and frozen on first use. These tests inject it through the scoped,\n 12\t/// parallel-safe test seam (OverrideDefaultForTests) so they never mutate the process default — the binder\n 13\t/// suite keeps seeing the built-in default.\n 14\t///

Instantiates options with the given argument-name provider and, optionally, custom structural error codes.

The provider resolving the argument name of a bound DTO property (see ).

\n 102\t public IArgumentNameProvider ArgumentNameProvider { get; }\n 103\t\n 104\t ///

The code the binder raises when a required argument is missing (defaults to REQUEST_ARGUMENT_REQUIRED).

\n 105\t public ErrorCode ArgumentRequiredCode { get; }\n 106\t\n 107\t ///

The code the binder raises when an argument is present but fails to convert (defaults to REQUEST_ARGUMENT_INVALID).

\n 15\tpublic sealed class DefaultOptionsTests {\n 16\t\n 17\t private static BookingRequest MissingEmail() {\n 18\t return new BookingRequest(null, \"R\", null, null, null, null, null);\n 19\t }\n 20\t\n 21\t private static Error BindMissingEmail(RequestBinderEnvelopeStage start) {\n 22\t var bind = start.FailWith(BookingEnvelopeError.CommandInvalid);\n 23\t bind.SimpleProperty(r => r.GuestEmail).AsRequired(EmailAddress.Parse);\n 24\t\n 25\t return bind.New(_ => \"x\").Error!.InnerErrors.Single();\n 26\t }\n 27\t\n 28\t // ── Bind.PropertiesOf binds with the configured default ───────────────────────────────────────────────\n 29\t\n 30\t [Fact(DisplayName = \"Bind.PropertiesOf binds with the configured default options — naming and structural codes — without WithOptions.\")]\n 31\t public void BindPropertiesOfUsesTheConfiguredDefault() {\n 32\t var configured = new RequestBinderOptions(new SnakeCaseNameProvider(),\n 33\t ErrorCode.Create(\"ACME_ARGUMENT_REQUIRED\"),\n 34\t ErrorCode.Create(\"ACME_ARGUMENT_INVALID\"));\n 35\t\n 36\t using (RequestBinderOptions.OverrideDefaultForTests(configured)) {\n 37\t Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));\n 38\t\n 39\t Check.That(error.Code.ToString()).IsEqualTo(\"ACME_ARGUMENT_REQUIRED\");\n 40\t Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"guest_email\");\n 41\t }\n 42\t }\n 43\t\n 44\t [Fact(DisplayName = \"Outside the configured scope, Bind.PropertiesOf falls back to the built-in default.\")]\n 45\t public void OutsideScopeFallsBackToBuiltIn() {\n 46\t using (RequestBinderOptions.OverrideDefaultForTests(new RequestBinderOptions(new SnakeCaseNameProvider()))) { }\n 47\t\n 48\t Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));\n 49\t\n 50\t Check.That(error.Code.ToString()).IsEqualTo(\"REQUEST_ARGUMENT_REQUIRED\");\n 51\t Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"GuestEmail\");\n 52\t }\n 53\t\n 54\t [Fact(DisplayName = \"A per-call Bind.WithOptions overrides the configured default.\")]\n 55\t public void WithOptionsWinsOverTheConfiguredDefault() {\n 56\t var appDefault = new RequestBinderOptions(new SnakeCaseNameProvider(),\n 57\t ErrorCode.Create(\"DEFAULT_REQUIRED\"),\n 58\t ErrorCode.Create(\"DEFAULT_INVALID\"));\n 59\t var perCall = new RequestBinderOptions(new SnakeCaseNameProvider(),\n 60\t ErrorCode.Create(\"PERCALL_REQUIRED\"),\n 61\t ErrorCode.Create(\"PERCALL_INVALID\"));\n 62\t\n 63\t using (RequestBinderOptions.OverrideDefaultForTests(appDefault)) {\n 64\t Error error = BindMissingEmail(Bind.WithOptions(perCall).PropertiesOf(MissingEmail()));\n 65\t\n 66\t Check.That(error.Code.ToString()).IsEqualTo(\"PERCALL_REQUIRED\");\n 67\t }\n 68\t }\n 69\t\n 70\t // ── The default resolves to the built-in when unconfigured ────────────────────────────────────────────\n 71\t\n 72\t [Fact(DisplayName = \"Unconfigured, RequestBinderOptions.Default is the built-in default (default structural codes).\")]\n 73\t public void DefaultIsBuiltInWhenUnconfigured() {\n 74\t Check.That(RequestBinderOptions.Default.ArgumentRequiredCode == RequestBindingError.DefaultArgumentRequiredCode).IsTrue();\n 75\t Check.That(RequestBinderOptions.Default.ArgumentInvalidCode == RequestBindingError.DefaultArgumentInvalidCode).IsTrue();\n 76\t }\n 77\t\n 78\t // ── Setter contract: null-rejecting and frozen-after-first-use ────────────────────────────────────────\n 79\t\n 80\t [Fact(DisplayName = \"Setting RequestBinderOptions.Default to null throws ArgumentNullException.\")]\n 81\t public void SettingNullThrows() {\n 82\t Check.ThatCode(() => RequestBinderOptions.Default = null!).Throws();\n 83\t }\n 84\t\n 85\t [Fact(DisplayName = \"Configuring RequestBinderOptions.Default after the first bind has read it throws — the default is frozen.\")]\n 86\t public void ConfiguringAfterFirstUseThrows() {\n 87\t _ = RequestBinderOptions.Default; // reading it (as the first bind does) freezes it; idempotent\n 88\t\n 89\t Check.ThatCode(() => RequestBinderOptions.Default = new RequestBinderOptions(new SnakeCaseNameProvider()))\n 90\t .Throws();\n 91\t }\n 92\t\n 93\t [Fact(DisplayName = \"The test seam rejects a null options.\")]\n 94\t public void OverrideForTestsRejectsNull() {\n 95\t Check.ThatCode(() => RequestBinderOptions.OverrideDefaultForTests(null!)).Throws();\n 96\t }\n 97\t\n 98\t private sealed class SnakeCaseNameProvider : IArgumentNameProvider {\n 99\t\n 100\t public string GetArgumentNameFrom(System.Reflection.PropertyInfo property) {\n 101\t return string.Concat(property.Name.Select((c, i) => i > 0 && char.IsUpper(c) ? \"_\" + char.ToLowerInvariant(c) : char.ToLowerInvariant(c).ToString()));\n 102\t }\n 103\t\n 104\t }\n 105\t\n 106\t}\n","command","/bin/bash -lc \"nl -ba FirstClassErrors.RequestBinder/RequestBinderOptions.cs | sed -n '1,130p'\nnl -ba FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs | sed -n '1,150p'\"","commandActions",[447,448],"cwd","/workspace/first-class-errors","exitCode","processId","58694","source","unifiedExecStartup","commandExecution",{"_435":453,"_181":454,"_161":455,"_92":452},{"_435":449,"_181":450,"_161":451,"_92":452},"nl -ba FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs","DefaultOptionsTests.cs","/workspace/first-class-errors/FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs","read","nl -ba FirstClassErrors.RequestBinder/RequestBinderOptions.cs","RequestBinderOptions.cs","/workspace/first-class-errors/FirstClassErrors.RequestBinder/RequestBinderOptions.cs",{"_383":457,"_362":363,"_385":369},{"_458":459,"_424":425,"_42":460,"_390":461,"_181":462,"_463":-5,"_92":464},"arguments","{\"cmd\":\"nl -ba FirstClassErrors.RequestBinder/RequestBinderOptions.cs | sed -n '1,130p'\\nnl -ba FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs | sed -n '1,150p'\"}","fc_06a0f46106704c3e016a5b7a71d5ec8190b37f2f1344a60879",{"_395":369},"exec_command","namespace","function_call",{"_383":466,"_362":363,"_385":369},{"_386":-5,"_407":467,"_42":468,"_390":469,"_411":470,"_92":413},"gAAAAABqW3px7vhO2DWw_CAGWh8uFAAXGs4rMo_FbedFtqPLhvRzbwiP7DMQBTghCSC0GRyoEw_G664mF_he9n1QsduXg_w0NlEF69LXnypxd3XCWCw_UrCuz-JeUxcfwlZGmeBI4F3fIxFWL1EVAmNGvo2vB3sQ26UNYMglDtxhZHf6iawXNqNO6UUz2kOiOSXU29EdxSbHMXXCSpR1Kc5bFlGWESgd56lzuXn4VTMBKWJgJRbY7qhftmIajND1VVZgg8xrmCt3VZk0Qy8If8k299dsYOmxYymGcHjUPWtpQNwP4oZnM8DYN-GkXNiE3LCu8ipilqOBlWX9ieiXaYwHV4lp3oEtA0BK356y6uCgyEJQUm8PcJQ0k_hGkcSKQiXhSKjeRHONEYVMa8a25U1mmZPcojPY23F9KQc80kqq_7hrsm13G1fwA85dKxbnYDHVihlqkacPzgWZs23yiGRi82mMSP1qRSngjNRIXHDfTh0YtIUIuHxj5Ben4LQz5KcJsdlEqfqrAtDYlt17qXyah9imwYi1YjcOuSDr1u1IO1M2kWdgSWckBrQuttTDa4uZxc4is5ElK7GKV9XSrDWqyRfaYloj8T_4usOHxk0Zuxp48pLh9C6wW_QeGeNWgFmfJpZNYf_FDtA9Rmr-T0Z5ALao9LK5LJoDpmmSSNtW8e3FPcZG8TWVkrWatVouZtOXBJoCxk0acLIx3EbgbsC6xlCEdAAEHZjSrkKzCaNY84BMcJ0Q_PcpqdEEkCpqsT-gu3c84CsyadOp9F_cB97mEjAmQXoeFADNi_lr1ex8ZSlrCTCRYFVTdBr_sr-ABINxGmqsf_u0fWFdNSdNbJ-ZOfWwUCX2HPZi9WZQs5g1Vi1ZDvoiskXimfBUnLg3l04Bv9HOtf6iMr6ydt8OPwI9d0Cw4p9AFrKfwfrHb2XgI-oGGxXTqD0b1BzeAWFFA6zWvUC9ikVkg8pujvYCICJer-01RNrVwnjnhJN1Fp2KIz4_CINMmBZ3CLjOpPrQrOD5uN3di2elo3t2r_VCyaPuDKthu6A8UcKQC7JZ1TvNrZyeCsrk2zc=","rs_06a0f46106704c3e016a5b7a70e2f481908689c219c208415c",{"_395":369},[471],{"_46":472,"_92":416},"**Preparing final citation commands with line numbers**",{"_401":474,"_383":475,"_362":363,"_385":369},1784380017865,{"_386":476,"_42":468,"_411":477,"_92":413},[],[472],{"_383":479,"_362":363,"_385":369},{"_424":480,"_42":-5,"_390":481,"_427":482,"_92":429},"call_jT4IJwmEt47lVmfiuvAquT72",{"_395":369},"Chunk ID: fd4d55\nWall time: 0.0001 seconds\nProcess exited with code 127\nOriginal token count: 12\nOutput:\n/bin/bash: line 1: dotnet: command not found\n",{"_401":484,"_383":485,"_362":363,"_385":369},1784380015976,{"_433":486,"_435":487,"_437":488,"_439":440,"_367":32,"_441":489,"_42":480,"_442":490,"_444":445,"_376":491,"_92":446},"/bin/bash: line 1: dotnet: command not found\n","/bin/bash -lc 'dotnet test FirstClassErrors.RequestBinder.UnitTests/FirstClassErrors.RequestBinder.UnitTests.csproj --no-restore'",[492],127,"73706","failed",{"_435":493,"_92":494},"dotnet test FirstClassErrors.RequestBinder.UnitTests/FirstClassErrors.RequestBinder.UnitTests.csproj --no-restore","unknown",{"_383":496,"_362":363,"_385":369},{"_458":497,"_424":480,"_42":498,"_390":499,"_181":462,"_463":-5,"_92":464},"{\"cmd\":\"dotnet test FirstClassErrors.RequestBinder.UnitTests/FirstClassErrors.RequestBinder.UnitTests.csproj --no-restore\", \"yield_time_ms\": 30000, \"max_output_tokens\": 6000}","fc_06a0f46106704c3e016a5b7a6f780c819094fc6d48f3bbe682",{"_395":369},{"_383":501,"_362":363,"_385":369},{"_386":-5,"_407":502,"_42":503,"_390":504,"_411":505,"_92":413},"gAAAAABqW3pv1QRWodPSopiCRpOwWOYHqxayvzjuk0uz5jXCzmPliBZV56xl4WefL8V1CDOvFF8TNrzaVfdYao0mZQM4aVW9MGXDfGnE8nIgqo_OyvJ7eFXNJ1Y8rjoeUtrzKg8KTfAaK6sR0EYpKebj571Z2MkMxBSyAa23Yf4m9Tkston8x4cWi_cJTVnRfnV-3pBPZu2UVfWAkG8ksJvhO1joC3h3B0r-VRcaEgdbezfK5i_jnHQnUYgR_1uxS4LyXRmJjItjiJhc-_czTYJuCr1-9okYdNiVxW5X6LbhsrVafZMnvba6YndaRUh0zBWFuT2z_CtonLZya4DbTn4rEDS_8T6i4GyxSsiCGobqdcvyyERSHjwv6JH1Jk1sWggtMtyCp8xFIS_o_Dre8wAfw3ojFT_ojgSxpOcyUnYz1LIJXuDg9MOa2VcUA7SJOWsSaomjcrXrXPMnJAg3E1Knx1Sutr9bogZsIe9BVzSDNACVYGUB2f8kSKqzXoewjGc9iwrRGtcgE7elA0V38r8-PzV8lsTVXQgFoqBzKzyCtrwA61fZFLG4FH9T-ebEi_9KmZJbCjdi1C0k7AfhaLvlF724fvb5nn90HSmY8-ZqAuBLimvHQQBjQNn_a9IDgiCAjeySq73H1mOMSBO65SP1SoawqCNGBmUjTTbr1MVvwxhe_PQM7_7EqRJp4q3n7o8RDG4ceSsgKwMG5yG8iaXxtkIcNSBD3FLKq1D7f4DifODqpPgG76JAIVRpo1cQ5RFIQHuQ1VPiecrGp1Pwnx1UjESyuMzihmzod4zzHCOP19RIE4oQVq_TCyjFektBB7bfBultxUDfaTiWSYxYOawVrErXr8Td-u5OHNnUokx4ciUwYwyl7aeC1ljESXLC7cUIfLsKvLFPGxOP6JCzMRZW1GVLZ_E63PALL1vqr0i1I4dq8_sBBavYFKwdnwbKPmMPyruRUO9L7R-l-ML7olBthsjYNp0AQnqtVzf5pLHKvgkjKrgXKCIqEws8RxbWwTUz0JRCQW8cJ7YLC4hG-T9xgG-3m1Z3s9JIUG_Aw3wS8QSW5XUsLHQV3gnOunTIlIZPHVtXkfnJ02qRw-5PtFiv6q00gzuD3SqVGmTn_IQTpFlmsrPxYEhcZfoI2Tky47AJYujRdFReRBlUS7N5nyh4NWgaBecLWrMWtKy2DYP1K5Wv9MmrDUM4DQoQ_9IAWoDrn44_g6Np_TkcWUbBndg4I3NoGIk70see8tENjIDAI1vmpz9DbhBX98JfFWjkqsSRHLALRmIDYZUuBU4cqSf5xyg9hOhs3Vu4WZbVB1IiZtkMZnnOxrC6H4OcJvogaiNjKwBOrEs-J7cQKvFi_E1ekQtU5kS55DhnE_2YOTt3Sz5WIXAZ5B5jn_1Vexb4gDk4iPpwy3FKri38aS8M9eHSO5N2nxd1lQtixb5zgqMQKd19xlK7j4r30i0TKn8-uR1J0LiBAerLfbHLkgcIzJfYcDasYD2DB917D2suYibGMLs88ziDGN4EgiCURZr7nx1rr5HOvAzLTbKV_uPmp55fO15Y0HZ-Fhp0ulWEuKENuUJBm7aCk_cnpiqQimfte2p-QXGjMrDs","rs_06a0f46106704c3e016a5b7a6c95f081908dc28eb50f1b4083",{"_395":369},[506],{"_46":507,"_92":416},"**Assessing test freezing impact**",{"_401":509,"_383":510,"_362":363,"_385":369},1784380015502,{"_386":511,"_42":503,"_411":512,"_92":413},[],[507],{"_383":514,"_362":363,"_385":369},{"_424":515,"_42":-5,"_390":516,"_427":517,"_92":429},"call_oXuLMfLs6XT5aDkPXc8hDp7h",{"_395":369},"Chunk ID: 2821be\nWall time: 0.0005 seconds\nProcess exited with code 0\nOriginal token count: 3142\nOutput:\nnamespace FirstClassErrors.RequestBinder;\n\n///

\n/// The binding options of a . A binder's options are fixed once, before\n/// binding begins — through or the application-wide — and\n/// inherited by nested binders; they never change while a binder is binding. The process-wide\n/// may be configured once at application startup and is frozen on first use.\n///

\npublic sealed class RequestBinderOptions {\n\n #region Statics members declarations\n\n private static readonly RequestBinderOptions BuiltIn = new(new DefaultArgumentNameProvider());\n private static readonly AsyncLocal TestOverride = new();\n private static readonly object Gate = new();\n private static RequestBinderOptions _default = BuiltIn;\n private static bool _frozen;\n\n ///

\n /// The application-wide default options that binds with. Assign it\n /// once at application startup — before any binding — to configure the binder host-wide without threading\n /// options through every call; a per-call still overrides it. The first bind\n /// reads it and thereby freezes it, so the default cannot drift once binding has begun. Defaults to the\n /// built-in options (C# property names and the default structural codes).\n ///

\n /// Thrown when set to null.\n /// Thrown when set after the first bind has already read it.\n public static RequestBinderOptions Default {\n get {\n RequestBinderOptions? overridden = TestOverride.Value;\n if (overridden is not null) { return overridden; }\n\n // Freeze and read under the gate: a concurrent set() either wins entirely (before any read froze the\n // default) or observes the freeze and throws — never a torn \"first bind on the old default, later binds\n // on the new one\". The gate is uncontended once the default is configured at startup.\n lock (Gate) {\n _frozen = true;\n\n return _default;\n }\n }\n set {\n if (value is null) { throw new ArgumentNullException(nameof(value)); }\n\n lock (Gate) {\n if (_frozen) {\n throw new InvalidOperationException(\n \"RequestBinderOptions.Default was already read by a binding; configure it once at application startup, before the first bind.\");\n }\n\n _default = value;\n }\n }\n }\n\n ///

\n /// Test-only seam: overrides for the current execution context until the returned scope\n /// is disposed. Backed by an , so it flows with the test's context and never leaks\n /// across tests running in parallel — the same pattern as the ambient clock. It does not touch the production\n /// default and never freezes it. Internal, for the library's own tests; a consumer-facing seam belongs in a\n /// dedicated testing package.\n ///

\n /// The options to bind with while the scope is active.\n /// A scope that restores the previous override when disposed.\n /// Thrown when is null.\n internal static IDisposable OverrideDefaultForTests(RequestBinderOptions options) {\n if (options is null) { throw new ArgumentNullException(nameof(options)); }\n\n RequestBinderOptions? previous = TestOverride.Value;\n TestOverride.Value = options;\n\n return new TestOverrideScope(previous);\n }\n\n #endregion\n\n #region Constructors declarations\n\n ///

Instantiates options with the given argument-name provider and, optionally, custom structural error codes.

\n /// The provider resolving the argument name of a bound DTO property.\n /// \n /// The code raised when a required argument is missing. null keeps the default\n /// (REQUEST_ARGUMENT_REQUIRED); pass a\n /// code of your own catalog's convention to keep the binder's failures consistent with your other error codes.\n /// \n /// \n /// The code raised when an argument is present but fails to convert. null keeps the default\n /// (REQUEST_ARGUMENT_INVALID).\n /// \n /// Thrown when is null.\n public RequestBinderOptions(IArgumentNameProvider argumentNameProvider, ErrorCode? argumentRequiredCode = null, ErrorCode? argumentInvalidCode = null) {\n if (argumentNameProvider is null) { throw new ArgumentNullException(nameof(argumentNameProvider)); }\n\n ArgumentNameProvider = argumentNameProvider;\n ArgumentRequiredCode = argumentRequiredCode ?? RequestBindingError.DefaultArgumentRequiredCode;\n ArgumentInvalidCode = argumentInvalidCode ?? RequestBindingError.DefaultArgumentInvalidCode;\n }\n\n #endregion\n\n ///

The provider resolving the argument name of a bound DTO property (see ).

\n public IArgumentNameProvider ArgumentNameProvider { get; }\n\n ///

The code the binder raises when a required argument is missing (defaults to REQUEST_ARGUMENT_REQUIRED).

\n public ErrorCode ArgumentRequiredCode { get; }\n\n ///

The code the binder raises when an argument is present but fails to convert (defaults to REQUEST_ARGUMENT_INVALID).

\n public ErrorCode ArgumentInvalidCode { get; }\n\n #region Nested types\n\n private sealed class TestOverrideScope : IDisposable {\n\n private readonly RequestBinderOptions? _previous;\n private bool _disposed;\n\n internal TestOverrideScope(RequestBinderOptions? previous) {\n _previous = previous;\n }\n\n public void Dispose() {\n if (_disposed) { return; }\n\n _disposed = true;\n TestOverride.Value = _previous;\n }\n\n }\n\n #endregion\n\n}\n#region Usings declarations\n\nusing NFluent;\n\n#endregion\n\nnamespace FirstClassErrors.RequestBinder.UnitTests;\n\n///

\n/// The application-wide : it is what \n/// binds with, configurable once at startup and frozen on first use. These tests inject it through the scoped,\n/// parallel-safe test seam (OverrideDefaultForTests) so they never mutate the process default — the binder\n/// suite keeps seeing the built-in default.\n///

Instantiates options with the given argument-name provider and, optionally, custom structural error codes.

The provider resolving the argument name of a bound DTO property (see ).

\n public IArgumentNameProvider ArgumentNameProvider { get; }\n\n ///

The code the binder raises when a required argument is missing (defaults to REQUEST_ARGUMENT_REQUIRED).

\n public ErrorCode ArgumentRequiredCode { get; }\n\n ///

The code the binder raises when an argument is present but fails to convert (defaults to REQUEST_ARGUMENT_INVALID).

\npublic sealed class DefaultOptionsTests {\n\n private static BookingRequest MissingEmail() {\n return new BookingRequest(null, \"R\", null, null, null, null, null);\n }\n\n private static Error BindMissingEmail(RequestBinderEnvelopeStage start) {\n var bind = start.FailWith(BookingEnvelopeError.CommandInvalid);\n bind.SimpleProperty(r => r.GuestEmail).AsRequired(EmailAddress.Parse);\n\n return bind.New(_ => \"x\").Error!.InnerErrors.Single();\n }\n\n // ── Bind.PropertiesOf binds with the configured default ───────────────────────────────────────────────\n\n [Fact(DisplayName = \"Bind.PropertiesOf binds with the configured default options — naming and structural codes — without WithOptions.\")]\n public void BindPropertiesOfUsesTheConfiguredDefault() {\n var configured = new RequestBinderOptions(new SnakeCaseNameProvider(),\n ErrorCode.Create(\"ACME_ARGUMENT_REQUIRED\"),\n ErrorCode.Create(\"ACME_ARGUMENT_INVALID\"));\n\n using (RequestBinderOptions.OverrideDefaultForTests(configured)) {\n Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));\n\n Check.That(error.Code.ToString()).IsEqualTo(\"ACME_ARGUMENT_REQUIRED\");\n Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"guest_email\");\n }\n }\n\n [Fact(DisplayName = \"Outside the configured scope, Bind.PropertiesOf falls back to the built-in default.\")]\n public void OutsideScopeFallsBackToBuiltIn() {\n using (RequestBinderOptions.OverrideDefaultForTests(new RequestBinderOptions(new SnakeCaseNameProvider()))) { }\n\n Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));\n\n Check.That(error.Code.ToString()).IsEqualTo(\"REQUEST_ARGUMENT_REQUIRED\");\n Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"GuestEmail\");\n }\n\n [Fact(DisplayName = \"A per-call Bind.WithOptions overrides the configured default.\")]\n public void WithOptionsWinsOverTheConfiguredDefault() {\n var appDefault = new RequestBinderOptions(new SnakeCaseNameProvider(),\n ErrorCode.Create(\"DEFAULT_REQUIRED\"),\n ErrorCode.Create(\"DEFAULT_INVALID\"));\n var perCall = new RequestBinderOptions(new SnakeCaseNameProvider(),\n ErrorCode.Create(\"PERCALL_REQUIRED\"),\n ErrorCode.Create(\"PERCALL_INVALID\"));\n\n using (RequestBinderOptions.OverrideDefaultForTests(appDefault)) {\n Error error = BindMissingEmail(Bind.WithOptions(perCall).PropertiesOf(MissingEmail()));\n\n Check.That(error.Code.ToString()).IsEqualTo(\"PERCALL_REQUIRED\");\n }\n }\n\n // ── The default resolves to the built-in when unconfigured ────────────────────────────────────────────\n\n [Fact(DisplayName = \"Unconfigured, RequestBinderOptions.Default is the built-in default (default structural codes).\")]\n public void DefaultIsBuiltInWhenUnconfigured() {\n Check.That(RequestBinderOptions.Default.ArgumentRequiredCode == RequestBindingError.DefaultArgumentRequiredCode).IsTrue();\n Check.That(RequestBinderOptions.Default.ArgumentInvalidCode == RequestBindingError.DefaultArgumentInvalidCode).IsTrue();\n }\n\n // ── Setter contract: null-rejecting and frozen-after-first-use ────────────────────────────────────────\n\n [Fact(DisplayName = \"Setting RequestBinderOptions.Default to null throws ArgumentNullException.\")]\n public void SettingNullThrows() {\n Check.ThatCode(() => RequestBinderOptions.Default = null!).Throws();\n }\n\n [Fact(DisplayName = \"Configuring RequestBinderOptions.Default after the first bind has read it throws — the default is frozen.\")]\n public void ConfiguringAfterFirstUseThrows() {\n _ = RequestBinderOptions.Default; // reading it (as the first bind does) freezes it; idempotent\n\n Check.ThatCode(() => RequestBinderOptions.Default = new RequestBinderOptions(new SnakeCaseNameProvider()))\n .Throws();\n }\n\n [Fact(DisplayName = \"The test seam rejects a null options.\")]\n public void OverrideForTestsRejectsNull() {\n Check.ThatCode(() => RequestBinderOptions.OverrideDefaultForTests(null!)).Throws();\n }\n\n private sealed class SnakeCaseNameProvider : IArgumentNameProvider {\n\n public string GetArgumentNameFrom(System.Reflection.PropertyInfo property) {\n return string.Concat(property.Name.Select((c, i) => i > 0 && char.IsUpper(c) ? \"_\" + char.ToLowerInvariant(c) : char.ToLowerInvariant(c).ToString()));\n }\n\n }\n\n}\n","/bin/bash -lc \"sed -n '1,220p' FirstClassErrors.RequestBinder/RequestBinderOptions.cs && sed -n '1,220p' FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs\"",[525,526],"50149",{"_435":528,"_181":454,"_161":455,"_92":452},{"_435":527,"_181":450,"_161":451,"_92":452},"sed -n '1,220p' FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs","sed -n '1,220p' FirstClassErrors.RequestBinder/RequestBinderOptions.cs",{"_383":530,"_362":363,"_385":369},{"_458":531,"_424":515,"_42":532,"_390":533,"_181":462,"_463":-5,"_92":464},"{\"cmd\":\"sed -n '1,220p' FirstClassErrors.RequestBinder/RequestBinderOptions.cs && sed -n '1,220p' FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs\"}","fc_06a0f46106704c3e016a5b7a6a4714819097d44e2e609b3e3a",{"_395":369},{"_383":535,"_362":363,"_385":369},{"_424":536,"_42":-5,"_390":537,"_427":538,"_92":429},"call_5vCvht1JoGXE1UzoxjntQJNT",{"_395":369},"Chunk ID: 494e53\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 260\nOutput:\n .../DefaultOptionsTests.cs | 106 ++++++++++++++++\n .../RequestBinderOptions.cs | 92 +++++++++++++-\n ...ation-wide-default-for-the-binder-options.fr.md | 135 +++++++++++++++++++++\n ...lication-wide-default-for-the-binder-options.md | 130 ++++++++++++++++++++\n doc/handwritten/for-maintainers/adr/README.md | 1 +\n doc/handwritten/for-users/RequestBinder.en.md | 37 ++++--\n doc/handwritten/for-users/RequestBinder.fr.md | 26 +++-\n 7 files changed, 514 insertions(+), 13 deletions(-)\nFirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs\nFirstClassErrors.RequestBinder/RequestBinderOptions.cs\ndoc/handwritten/for-maintainers/adr/0017-provide-a-configurable-application-wide-default-for-the-binder-options.fr.md\ndoc/handwritten/for-maintainers/adr/0017-provide-a-configurable-application-wide-default-for-the-binder-options.md\ndoc/handwritten/for-maintainers/adr/README.md\ndoc/handwritten/for-users/RequestBinder.en.md\ndoc/handwritten/for-users/RequestBinder.fr.md\n",{"_401":540,"_383":541,"_362":363,"_385":369},1784380008961,{"_433":542,"_435":543,"_437":544,"_439":440,"_367":32,"_441":32,"_42":536,"_442":545,"_444":445,"_376":113,"_92":446}," .../DefaultOptionsTests.cs | 106 ++++++++++++++++\n .../RequestBinderOptions.cs | 92 +++++++++++++-\n ...ation-wide-default-for-the-binder-options.fr.md | 135 +++++++++++++++++++++\n ...lication-wide-default-for-the-binder-options.md | 130 ++++++++++++++++++++\n doc/handwritten/for-maintainers/adr/README.md | 1 +\n doc/handwritten/for-users/RequestBinder.en.md | 37 ++++--\n doc/handwritten/for-users/RequestBinder.fr.md | 26 +++-\n 7 files changed, 514 insertions(+), 13 deletions(-)\nFirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs\nFirstClassErrors.RequestBinder/RequestBinderOptions.cs\ndoc/handwritten/for-maintainers/adr/0017-provide-a-configurable-application-wide-default-for-the-binder-options.fr.md\ndoc/handwritten/for-maintainers/adr/0017-provide-a-configurable-application-wide-default-for-the-binder-options.md\ndoc/handwritten/for-maintainers/adr/README.md\ndoc/handwritten/for-users/RequestBinder.en.md\ndoc/handwritten/for-users/RequestBinder.fr.md\n","/bin/bash -lc 'git diff --stat 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD && git diff --name-only 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD'",[546],"95987",{"_435":547,"_92":494},"git diff --stat 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD && git diff --name-only 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD",{"_383":549,"_362":363,"_385":369},{"_458":550,"_424":536,"_42":551,"_390":552,"_181":462,"_463":-5,"_92":464},"{\"cmd\":\"git diff --stat 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD && git diff --name-only 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD\"}","fc_06a0f46106704c3e016a5b7a67a2788190a1d788e8bc128dd2",{"_395":369},{"_383":554,"_362":363,"_385":369},{"_386":-5,"_407":555,"_42":556,"_390":557,"_411":558,"_92":413},"gAAAAABqW3pn_qty5J2SgYkuLwIbxKlB84K5wU8WavVjWDvHMI4_9xt2ouEAMSjaZmWibHxkSF6QmCveGPTiRgras2Qc57c-bUr5fgvNcFhzr5StpZ3-FChVy1L5gTexYTyj56xymPERarlbJThUcCFfoD2umxPkef9OwFg98h751GyQIJXAYNNnd38eKDjIM30mxTdfKpLzqk0kPpUJErp8cjiSnSUstwDLYHwWW-7V0ve2hUhmw-m1Nwm9pnSkfKANqeEQF7IpQX4urNQLlUNy6dLi_-lf1aKscPw-upmqc8Ptb4asZgOawvK2b4khol4SbhnzvAkB0wJJkgLfN5hS9mVeCXQ9rUaerQxXO41E3u7d6BBiEpQ9EpqWQ5PRwM0zu6_ErTSeQDZqQAQl4jemoFbYXCU77ebUpUfNOBZo-MeXHiNYUuE97eNYfv26LBtjj0ZX8XnIqXXaaX7PjrjxVZFbaYgmGHMzqAkjLdpMJnScYkZ_peunUUHJuapCqUnOYvER3bePSnJbr26eT4JXLqhJMlmKgLhwipT78hMOrsKa9-S10dV6zUB-fEjUOEgd9sowuXSidfAikHCn2-y_K72xxvBMXu8dGnyxhZSzsDMJ5dpCV1mcYJQIsrFMtz8DNl0KQrcC2lGHUKsmZ9CM_MafMrywIX4i2-ZnB3CgF6KVSxSwXNqtarQQ3MioxePQLWHchWsehbpIuXlWtuxj1Pb7LEQAyfDEvi3IU9Imj8WSUfD_CE4a-92qOvjH4dbv_LA2k6YqXZvNSFivTVnD2jmNQHCva7ZplYnzrlVdxMZBJPMlw-MdawihHG34myBAfaeCTGWMlTVdi9EmZgzaO8px1NQsjcsvMgI-eEbZ5A_mIHcVSxkfOnKc-qEAD89tsc10W086muRHgdQCyA_Ff0H6cCC7WtnzDUUWeipPSMFXK0wy1PU1cLZgL2sxpao4pUwhqXnw_f6dJeN6yjLdaqTKm9ZYwrHSopxfmbvYDarnAhErK74=","rs_06a0f46106704c3e016a5b7a670304819086099c9ec6fe5cc0",{"_395":369},[],{"_401":560,"_383":561,"_362":363,"_385":369},1784380007669,{"_386":562,"_42":556,"_411":563,"_92":413},[],[],{"_383":565,"_362":363,"_385":369},{"_424":566,"_42":-5,"_390":567,"_427":568,"_92":429},"call_YunIfkHyK5FOLgTHd5yabsgu",{"_395":369},"Chunk ID: 99e279\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 2188\nOutput:\n# AGENTS.md — FirstClassErrors\n\nInstructions for automated agents (OpenAI Codex and others) in this repository.\nTwo roles are covered: **writing code** and **reviewing pull requests**.\n\n## Project orientation (code changes)\n\n- .NET Standard 2.0 library. Errors are first-class, documented, diagnosable concepts.\n- Build: `dotnet build FirstClassErrors.sln`\n- Test: `dotnet test FirstClassErrors.sln` (analyzer tests: `dotnet test FirstClassErrors.Analyzers.UnitTests`).\n- Repository language is **English** (code, comments, commits, PRs, issues, and\n review comments). French lives only in `doc/handwritten/for-users/README.fr.md` and must stay in sync\n with the English README.\n- `Error` and its hierarchy, `ErrorCode`, `ErrorContextKey`, `Outcome`/`Outcome`\n and any value object are **`class`, never `struct`** — a struct exposes a\n zero-initialized default that bypasses validating constructors. Enums\n (`Transience`, `ErrorOrigin`) are the only value-type exception.\n- Keep changes small and focused. Treat renamed error codes, diagnostic IDs and\n public types as breaking changes.\n\n## Architecture decisions (code changes)\n\nBefore finalizing a pull request, check it against the ADR base under\n`doc/handwritten/for-maintainers/adr/` (format and conventions: `doc/handwritten/for-maintainers/adr/README.md`). An ADR\nrecords a **significant, lasting decision** — one a future maintainer would ask\n\"why did they do it this way?\" about — not every change. Apply the README's test:\n*if the implementation changed but the decision stood, the ADR should not need\nediting.* Most pull requests embark no such decision; the **check** is mandatory,\nthe **ADR** is not.\n\nThe check has three outcomes — state the result in the pull request description:\n\n- **Create** — the pull request embarks a new lasting decision (a public API\n contract, a cross-cutting invariant, a supported-platform floor, a dependency or\n security/compatibility policy, and the like). Draft one ADR per decision from\n `template.md` with **`Status: Proposed`**, add it to the index in `README.md`,\n and link it from the pull request.\n- **Supersede** — the decision replaces one already recorded. Never edit the\n existing ADR in place or change its status yourself: name it in the pull request,\n draft the successor as `Proposed`, and leave the status flip to the maintainer.\n Accepted ADRs are immutable historical records.\n- **Alert** — the pull request contradicts an accepted ADR. Do not proceed\n silently: flag it in the description — `⚠️ Conflicts with ADR-NNNN ()` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n21bf130 fix(binder): make the RequestBinderOptions.Default freeze atomic\n8b7bec2 Merge remote-tracking branch 'origin/main' into 181-host-agnostic-default-options\na74f384 docs(binder): accept ADR-0017 for the app-wide default options\n378f6ec docs(binder): draft ADR-0017 for the app-wide default options\n2a79a31 feat(binder): configure a host-agnostic default for Bind.PropertiesOf\n",{"_401":570,"_383":571,"_362":363,"_385":369},1784380005762,{"_433":572,"_435":573,"_437":574,"_439":440,"_367":32,"_441":32,"_42":566,"_442":575,"_444":445,"_376":113,"_92":446},"# AGENTS.md — FirstClassErrors\n\nInstructions for automated agents (OpenAI Codex and others) in this repository.\nTwo roles are covered: **writing code** and **reviewing pull requests**.\n\n## Project orientation (code changes)\n\n- .NET Standard 2.0 library. Errors are first-class, documented, diagnosable concepts.\n- Build: `dotnet build FirstClassErrors.sln`\n- Test: `dotnet test FirstClassErrors.sln` (analyzer tests: `dotnet test FirstClassErrors.Analyzers.UnitTests`).\n- Repository language is **English** (code, comments, commits, PRs, issues, and\n review comments). French lives only in `doc/handwritten/for-users/README.fr.md` and must stay in sync\n with the English README.\n- `Error` and its hierarchy, `ErrorCode`, `ErrorContextKey`, `Outcome`/`Outcome<T>`\n and any value object are **`class`, never `struct`** — a struct exposes a\n zero-initialized default that bypasses validating constructors. Enums\n (`Transience`, `ErrorOrigin`) are the only value-type exception.\n- Keep changes small and focused. Treat renamed error codes, diagnostic IDs and\n public types as breaking changes.\n\n## Architecture decisions (code changes)\n\nBefore finalizing a pull request, check it against the ADR base under\n`doc/handwritten/for-maintainers/adr/` (format and conventions: `doc/handwritten/for-maintainers/adr/README.md`). An ADR\nrecords a **significant, lasting decision** — one a future maintainer would ask\n\"why did they do it this way?\" about — not every change. Apply the README's test:\n*if the implementation changed but the decision stood, the ADR should not need\nediting.* Most pull requests embark no such decision; the **check** is mandatory,\nthe **ADR** is not.\n\nThe check has three outcomes — state the result in the pull request description:\n\n- **Create** — the pull request embarks a new lasting decision (a public API\n contract, a cross-cutting invariant, a supported-platform floor, a dependency or\n security/compatibility policy, and the like). Draft one ADR per decision from\n `template.md` with **`Status: Proposed`**, add it to the index in `README.md`,\n and link it from the pull request.\n- **Supersede** — the decision replaces one already recorded. Never edit the\n existing ADR in place or change its status yourself: name it in the pull request,\n draft the successor as `Proposed`, and leave the status flip to the maintainer.\n Accepted ADRs are immutable historical records.\n- **Alert** — the pull request contradicts an accepted ADR. Do not proceed\n silently: flag it in the description — `⚠️ Conflicts with ADR-NNNN (<title>)` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n21bf130 fix(binder): make the RequestBinderOptions.Default freeze atomic\n8b7bec2 Merge remote-tracking branch 'origin/main' into 181-host-agnostic-default-options\na74f384 docs(binder): accept ADR-0017 for the app-wide default options\n378f6ec docs(binder): draft ADR-0017 for the app-wide default options\n2a79a31 feat(binder): configure a host-agnostic default for Bind.PropertiesOf\n","/bin/bash -lc 'cat AGENTS.md && git status --short && git log --oneline -5'",[576],"49008",{"_435":577,"_92":494},"cat AGENTS.md && git status --short && git log --oneline -5",{"_383":579,"_362":363,"_385":369},{"_458":580,"_424":566,"_42":581,"_390":582,"_181":462,"_463":-5,"_92":464},"{\"cmd\":\"cat AGENTS.md && git status --short && git log --oneline -5\"}","fc_06a0f46106704c3e016a5b7a651d548190bf198040ee79fa38",{"_395":369},{"_383":584,"_362":363,"_385":369},{"_424":585,"_42":-5,"_390":586,"_427":587,"_92":429},"call_m68VrE9wqy0AC4cGIG9KmKXD",{"_395":369},"Chunk ID: 0bb95d\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 18\nOutput:\n/workspace/first-class-errors\nAGENTS.md\n/workspace/first-class-errors\n",{"_401":589,"_383":590,"_362":363,"_385":369},1784380002215,{"_433":591,"_435":592,"_437":593,"_439":440,"_367":32,"_441":32,"_42":585,"_442":594,"_444":445,"_376":113,"_92":446},"/workspace/first-class-errors\nAGENTS.md\n/workspace/first-class-errors\n","/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g '\"'!bin'\"' -g '\"'!obj'\"' && git status --short && git rev-parse --show-toplevel\"",[595],"27290",{"_435":596,"_92":494},"pwd && rg --files -g 'AGENTS.md' -g '!bin' -g '!obj' && git status --short && git rev-parse --show-toplevel",{"_383":598,"_362":363,"_385":369},{"_458":599,"_424":585,"_42":600,"_390":601,"_181":462,"_463":-5,"_92":464},"{\"cmd\": \"pwd && rg --files -g 'AGENTS.md' -g '!bin' -g '!obj' && git status --short && git rev-parse --show-toplevel\"}","fc_06a0f46106704c3e016a5b7a61bf648190b3fd68eeef97c3bc",{"_395":369},{"_383":603,"_362":363,"_385":369},{"_386":-5,"_407":604,"_42":605,"_390":606,"_411":607,"_92":413},"gAAAAABqW3phG-N84aQZbL6bBTKI-_By4tw13m-zW0nUqyMsFLiarH3pODfaA7tqX5OQrPy3Wm9hIl-dJEEettM5aCk1WZNBoxUR1CfDeJ-FQTNMUDnN54z_bq7-MgkvYU0aZBuMSPez1PaFPfIPKyS9XiDZgtVPCnOT8B2tGUcCjeZ5aL0CFCzaQs4S1_VlpjrYPZUYI8kPloTrow-a-mSXNir4FBkPHBA0koIfM2MenYUDZWA46FIXKqW5R4s_xnaHrIxfe8TgWXr8qW0nzV6ToZCe5utbU_i6jbU-wMsH1RkRiswWlJMsJdwripqEQ-B_mbBqSMjpadjyds1SMEF97SIXAgoLP4ri_jssUziKeFpqy1SRwshEPjaodbhr2eJjuY24Ao8fdoB0WeJYEChypHctlgJDlKcdcm7bFbzF0G8XFI3-Wl2UN7wV6lcLd-lOVkqcbh5hYZTkCVICHVQk2WEN3qH46PpRW3xHODwlxZ7rGZZ2n2Pv8iBqJnM4xm9oq1t5RqH111CDi09ibmnPQzjpqhSQaePMDbUbTL36HpbD0Dm56QeHzdRDBvpCgQ8P6oXv47NS50do9EzHRkJvFEAyykfVnfEKQ8VTs-yD5boIKRdnA9aIO5ILYo7j_tEWgjkvGkoipTr_SfchZPdWWxkNaOJgzEYIfFD2wh9lKwycQLZ3bxnJRYNhgdHURbb4e56eNWm-ZT1CklZMvfIIhPGKgL3e-tKI3nPKMp3sLEnI0_YdH02ojFFEPDEiKYsd0iwVGWFhgGXzGzCEyBNwisfxS7Odv3CzpnDkHCVwHFORVEpgGHDJRPT5fX9jb3MU-IbPviRvGg3BQIBjVAYvZFrx_wgXMxXecuBBBdOKPWMHif4nX-d7-9-zFnL0LnCcsQZ5dtCbJLXGkFgzZTRjPd39N0dMn6qfdKWonprSrlgaT5cRxBmLDRjI8xm9qfRkQv5eYkbgbJ6fyBaOSA-Ms9e5TwtLxyVnoBUruCibYvtkP4dflPfW_NXVOVBY7WEOMXOw3Inz6SDv9VMdkFe3rUnaBCpdP_TdO8AYbihW9rzdR1E8vAy_gAu4bjeS3uJBhiYqfJJUUXsB5n6T9VbwD6WCZCDiyHBwyXu4lhLsjaBnRmRGvd1SJe4LLf5JMaljVoELENjUUodflPmCHO7j1upmTjrYJRjnEwP0Q93ExXVaqwyNmwouCkxa0Hq7OQJodqGPeT7mPp1wbz8mPRQyhnX9MSHc11icNOrpPLipZG5c43nYflw=","rs_06a0f46106704c3e016a5b7a5ff5508190a6b9eb542eb9668c",{"_395":369},[608],{"_46":609,"_92":416},"**Evaluating need for review or PR**",{"_401":611,"_383":612,"_362":363,"_385":369},1784380001779,{"_386":613,"_42":605,"_411":614,"_92":413},[],[609],{"_401":616,"_383":617,"_362":363,"_385":369},1784379998777,{"_618":-5,"_386":619,"_42":620,"_92":621},"clientId",[622],"019f7556-0239-7123-8aab-0d4a042727f8","userMessage",{"_46":623,"_624":625,"_92":46},"\nYou are Codex, assisting with follow-up actions on a GitHub pull request.\n\nInput blocks\n------------\n<TRIGGER>…</TRIGGER> # The comment or event that invoked you\n<PR_INFO>…</PR_INFO> # PR metadata (title, branches, SHAs, status, etc.)\n<PR_COMMENT>…</PR_COMMENT> # Comments / Reviews for the PR\n\nPossible triggers\n• A user mentions you (@codex)\n• A reviewer requests changes\n• An automated or internal system asks you to review / update\n\nGuidelines\n1. Read the <TRIGGER> block first and treat it as the primary intent.\n2. Always consult <PR_INFO> and <PR_COMMENT> to interpret and validate the trigger; use only context that materially affects your decision and ignore the rest.\n3. If the trigger comes from a comment thread, the first <PR_COMMENT> block will be combined earlier comments from the same thread, clearly indicated with `Comments in the same thread`.\n4. Remaining <PR_COMMENT> blocks are in chronological order, oldest first, one block per comment.\n5. When the trigger relates to CI/build status (e.g., “help me fix CI”), incorporate CI/status details found in <PR_COMMENT> as supporting context.\n6. If code change is needed, generate a **new** PR with the requested changes. The PR title and message should summarize the changes **on top** of the original pull request.\n<TRIGGER>@codex no more issues ?</TRIGGER><PR_INFO>{\"title\":\"feat(binder): configure a host-agnostic default for Bind.PropertiesOf\",\"body\":\"## Summary\\n\\n`Bind.PropertiesOf(request)` binds with `RequestBinderOptions.Default`, which was a fixed built-in — so the only way to bind with custom options (a naming policy, the overridable structural codes from #147) was `Bind.WithOptions(...)`, threading the configured entry point through every call or resolving it from DI. This makes `RequestBinderOptions.Default` a **settable application default**, configured once at startup with **no DI container needed** (a CLI or worker can set it), and **frozen on first use** so it cannot drift once requests are flowing. `Bind` gains no configuration surface; a per-call `Bind.WithOptions(...)` still overrides it.\\n\\n## Type of change\\n\\n* [ ] Bug fix\\n* [x] New feature\\n* [ ] Breaking change\\n* [ ] Refactoring\\n* [ ] Analyzer / diagnostic change\\n* [x] Tests\\n* [x] Documentation\\n\\n## Changes\\n\\n* Make `RequestBinderOptions.Default` a settable property (was get-only). Setting it rejects `null` and throws once the first bind has read it (**frozen on first use** — the `JsonSerializerOptions` discipline), so it is configured at composition time and cannot change at runtime. The value is an immutable `RequestBinderOptions`, so there is no shared-mutable-settings hazard.\\n* `Bind.PropertiesOf` already reads `RequestBinderOptions.Default`, so `Bind` is unchanged — no configuration method pollutes the `Bind.` surface. `Bind.WithOptions(o)` still overrides per call.\\n* Add an internal, scoped, test-only override (`OverrideDefaultForTests`, backed by an `AsyncLocal`) so the library's own suite stays parallel-safe without mutating the process default — the same seam pattern as the ambient clock.\\n* Add `DefaultOptionsTests` (7 tests): `Bind.PropertiesOf` binds with the configured default (naming + codes) without `WithOptions`; falls back to the built-in outside the scope; a per-call `WithOptions` wins; the setter rejects `null` and throws after first use.\\n* Document configuring the application-wide default in the RequestBinder guide (EN + FR), and add **ADR-0017** (EN + FR).\\n\\n## Testing\\n\\n* [x] `dotnet build FirstClassErrors.sln` — succeeded, 0 warnings / 0 errors.\\n* [x] `dotnet test FirstClassErrors.sln` — all green (998 total, 0 failed); the freeze and `AsyncLocal` seam do not leak into the other binder tests.\\n* [x] Analyzer tests pass (`FirstClassErrors.Analyzers.UnitTests`) — 85 passed.\\n\\n## Documentation\\n\\n* [x] Public API / error documentation updated — XML docs on `RequestBinderOptions.Default` and the test seam.\\n* [x] README / `doc/` updated — RequestBinder guide (EN), new \\\"Configuring the default for the whole application\\\" section.\\n* [x] French translation updated — the RequestBinder guide (`RequestBinder.fr.md`) and ADR-0017 (`.fr.md`), in lockstep.\\n* [ ] No documentation change required\\n\\n## Architecture decisions\\n\\n* [ ] No architectural decision in this pull request\\n* [x] New decision recorded — ADR drafted as `Proposed`: ADR-0017\\n* [ ] Supersedes an existing ADR — successor proposed, status not flipped: ADR-____\\n* [ ] ⚠️ Conflicts with an existing ADR — flagged for the maintainer: ADR-____\\n\\nADR-0017 records the decision and is **`Accepted`** (per the maintainer). It revisits the process-wide ambient default that ADR-0012 had weighed and rejected as an alternative, adopting it with mitigations (frozen-on-first-use, immutable value, `AsyncLocal` test seam). **ADR-0012 is not superseded** — its own decision (a binder's options are fixed at its entry point) is unchanged and stays `Accepted`.\\n\\n## Related issues\\n\\nCloses #181\\n\\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\\n\\n---\\n_Generated by [Claude Code](https://claude.ai/code/session_01J12ghrzM1xiAKw4LETJDqr)_\",\"base_ref\":\"12bf086c4aa63e8a19a90146c0a644977187f2b2\",\"head_ref\":\"21bf130fe63fb6bb9aa56e2c429513349c05a733\",\"merge_commit_sha\":null,\"type\":\"pull_request_info\"}</PR_INFO><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\\n\\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"FirstClassErrors.RequestBinder/RequestBinderOptions.cs\",\"side\":\"RIGHT\",\"line\":null}</PR_COMMENT><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `a74f384183`\\n \\n\\n<details> <summary>ℹ️ About Codex in GitHub</summary>\\n \\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</details>\",\"path\":null,\"side\":null,\"line\":null}</PR_COMMENT><PR_COMMENT>{\"type\":\"pull_request_comment\",\"body\":\"Resolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \\\"first bind on the old default, later binds on the new\\\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\\n\\n---\\n_Generated by [Claude Code](https://claude.ai/code)_\",\"path\":\"FirstClassErrors.RequestBinder/RequestBinderOptions.cs\",\"side\":\"RIGHT\",\"line\":null}</PR_COMMENT>","text_elements",[],{"_383":627,"_362":363,"_385":369},{"_386":628,"_388":-5,"_42":-5,"_390":629,"_392":-5,"_96":307,"_92":394},[630],{"_395":369},{"_46":623,"_92":631},"input_text",{"_383":633,"_362":363,"_385":369},{"_386":634,"_388":-5,"_42":-5,"_390":635,"_392":-5,"_96":307,"_92":394},[636,637],{"_395":369},{"_46":639,"_92":631},{"_46":638,"_92":631},"<environment_context>\n <cwd>/workspace/first-class-errors</cwd>\n <shell>bash</shell>\n <current_date>2026-07-18</current_date>\n <timezone>Etc/UTC</timezone>\n <filesystem><workspace_roots><root>/workspace/first-class-errors</root></workspace_roots><permission_profile type=\"disabled\"><file_system type=\"unrestricted\" /></permission_profile></filesystem>\n</environment_context>","# AGENTS.md instructions for /workspace/first-class-errors\n\n<INSTRUCTIONS>\n# AGENTS.md — FirstClassErrors\n\nInstructions for automated agents (OpenAI Codex and others) in this repository.\nTwo roles are covered: **writing code** and **reviewing pull requests**.\n\n## Project orientation (code changes)\n\n- .NET Standard 2.0 library. Errors are first-class, documented, diagnosable concepts.\n- Build: `dotnet build FirstClassErrors.sln`\n- Test: `dotnet test FirstClassErrors.sln` (analyzer tests: `dotnet test FirstClassErrors.Analyzers.UnitTests`).\n- Repository language is **English** (code, comments, commits, PRs, issues, and\n review comments). French lives only in `doc/handwritten/for-users/README.fr.md` and must stay in sync\n with the English README.\n- `Error` and its hierarchy, `ErrorCode`, `ErrorContextKey`, `Outcome`/`Outcome<T>`\n and any value object are **`class`, never `struct`** — a struct exposes a\n zero-initialized default that bypasses validating constructors. Enums\n (`Transience`, `ErrorOrigin`) are the only value-type exception.\n- Keep changes small and focused. Treat renamed error codes, diagnostic IDs and\n public types as breaking changes.\n\n## Architecture decisions (code changes)\n\nBefore finalizing a pull request, check it against the ADR base under\n`doc/handwritten/for-maintainers/adr/` (format and conventions: `doc/handwritten/for-maintainers/adr/README.md`). An ADR\nrecords a **significant, lasting decision** — one a future maintainer would ask\n\"why did they do it this way?\" about — not every change. Apply the README's test:\n*if the implementation changed but the decision stood, the ADR should not need\nediting.* Most pull requests embark no such decision; the **check** is mandatory,\nthe **ADR** is not.\n\nThe check has three outcomes — state the result in the pull request description:\n\n- **Create** — the pull request embarks a new lasting decision (a public API\n contract, a cross-cutting invariant, a supported-platform floor, a dependency or\n security/compatibility policy, and the like). Draft one ADR per decision from\n `template.md` with **`Status: Proposed`**, add it to the index in `README.md`,\n and link it from the pull request.\n- **Supersede** — the decision replaces one already recorded. Never edit the\n existing ADR in place or change its status yourself: name it in the pull request,\n draft the successor as `Proposed`, and leave the status flip to the maintainer.\n Accepted ADRs are immutable historical records.\n- **Alert** — the pull request contradicts an accepted ADR. Do not proceed\n silently: flag it in the description — `⚠️ Conflicts with ADR-NNNN (<title>)` —\n with the precise conflict, and let the maintainer decide (accept it as a\n supersession, or change the code).\n\nAn agent **drafts and proposes**; it never accepts, supersedes, or deprecates an\nADR on its own authority — that is the maintainer's call, exactly as no agent\nmerges a pull request. When it is genuinely unclear whether a change is\nsignificant enough, or whether it supersedes an existing ADR, say so in the pull\nrequest and let `@reefact` judge rather than guessing.\n\n## Review guidelines (pull request reviews)\n\nREAD THIS BEFORE REVIEWING. The full specification is in `code_review.md`; the\nrules below are mandatory and inlined so they are never missed.\n\n### Output format — mandatory\n\nEvery inline comment MUST use exactly this shape, with nothing around it:\n\n```text\n<label> [(decorations)]: <subject on one line>\n\n<optional discussion>\n```\n\nIn this shape, `< >` marks a placeholder to replace and `[ ]` marks an optional\npart — write neither the angle brackets nor the square brackets literally.\nDecorations, when present, go in parentheses (for example `(security)`).\n\n- The entire comment is written in **English** — label, decorations, subject and\n discussion. Code identifiers, API names and exception messages are quoted verbatim.\n- Never publish an unlabelled comment.\n- Exactly **one label** and **one independent finding** per comment. At most two decorations.\n- Do **NOT** add a severity/priority prefix — no `P0`, `P1`, `P2`, `P3`,\n `critical`, `major`, `minor`, anywhere in the comment. Blocking status is\n carried only by the label and the `(blocking)` / `(non-blocking)` decoration.\n- No introduction or conclusion around the comment. Place it on the smallest\n relevant code range. Do not repeat the same finding on multiple lines.\n\nCanonical example:\n\n```text\nissue (security): The raw connection string is copied into the error context and reaches the logs.\n\n`ConnectionError.Create` stores the full connection string in the `ErrorContext`, and the\nlog sink serializes every `Values` entry. The password therefore appears verbatim in any\naggregated log output.\n\nStore only the host, or a redacted form, in the context — never the credential itself.\n```\n\n### Labels (one per comment)\n\n- `issue:` confirmed defect that must be addressed — *blocking*.\n- `todo:` small, obvious, local, non-debatable required change — *blocking*.\n- `chore:` mandatory process step before merge; name the command/file — *blocking*.\n- `question:` code looks suspicious but evidence is insufficient to assert a defect — *non-blocking*.\n- `suggestion:` concrete optional improvement (never for incorrect code — use `issue:`) — *non-blocking*.\n- `nitpick:` purely subjective, optional preference; should be rare — *non-blocking*.\n- `note:` relevant information, no change expected — *non-blocking*.\n- `thought:` design/architecture observation out of scope; must state no change is required here — *non-blocking*.\n- `praise:` genuinely good and worth preserving; explain what and why — *non-blocking*.\n\nOverride a default only when the finding genuinely differs, e.g.\n`suggestion (blocking):` or `issue (non-blocking):`. Never restate a default\n(`issue (blocking):`, `nitpick (non-blocking):`).\n\nAllowed decorations: `(blocking)`, `(non-blocking)`, `(if-minor)`, `(security)`,\n`(perf)`, `(test)`, `(archi)`. One normally, never more than two.\n\n### What to report (priority order)\n\nCorrectness → security → data integrity → regressions → public API / compatibility\n→ concurrency / reliability → significant performance → missing tests for a\ndemonstrated risk → violations of an explicit repository rule (e.g. a value object\nconverted to `struct`).\n\nDo NOT report: formatter-enforced style, analyzer-detected issues already flagged\nby an `FCExxx` rule, naming already enforced by tooling, speculative problems with\nno execution path, broad refactors unrelated to the PR, personal style presented as\na requirement, or pre-existing issues the PR does not materially affect.\n\nIf there is no relevant finding, approve without manufacturing comments.\n\n### Final summary\n\nKeep it concise. Report only: the number of blocking findings, the number of\nnon-blocking findings, and the main risk areas. Do not restate every inline\ncomment. If nothing was found, state clearly that no blocking issue was found.\nThe summary is not a Conventional Comment and needs no label.\n\n## Responding to review feedback (acting agent)\n\nThis section governs the agent that *fixes* a pull request in response to a\nreview (for example `@claude`), not the reviewer. The human maintainer `@reefact`\nis the only authority that merges a pull request; no agent merges, and no agent\nenables auto-merge on its own pull request.\n\nFor each review finding, take exactly one route:\n\n- **You agree and the fix is clear and local** — implement it, push, and reply on\n the thread with `Resolved in <sha>`. You MAY ask the reviewer (`@codex`) for a\n single confirming re-review; never open a back-and-forth.\n- **You believe the finding is wrong** — reply on the thread with the concrete\n technical reason and mention `@reefact` to arbitrate. Do not ping `@codex` to\n argue: a peer reviewer has no authority to settle the disagreement.\n- **The finding needs a human judgement** — architecture, a product trade-off, an\n ambiguous requirement, a security or compatibility policy — mention `@reefact`\n and wait. Do not decide unilaterally.\n\nRules:\n\n- Never mention both `@codex` and `@reefact` on the same thread: a bot round-trip\n or a human decision, never both.\n- At most two fix / re-review cycles per finding. If it is still open after that,\n stop and mention `@reefact` instead of continuing.\n- Keep replies short and factual; the diff is the record.\n\n</INSTRUCTIONS>",{"_383":641,"_362":363,"_385":369},{"_386":642,"_388":-5,"_42":-5,"_390":643,"_392":-5,"_96":644,"_92":394},[645,646],{"_395":369},"developer",{"_46":648,"_92":631},{"_46":647,"_92":631},"<skills_instructions>\n## Skills\nA skill is a set of instructions provided through a `SKILL.md` source. Below is the list of skills that can be used. Each entry includes a name, description, and source locator. `file` locators are on the host filesystem, `environment resource` locators are owned by an execution environment, `orchestrator resource` locators are opaque non-filesystem resources, and `custom resource` locators use their provider's access mechanism.\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, asks about Codex itself or choosing Codex surfaces, needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; use OpenAI docs MCP tools for non-Codex docs questions, use the Codex manual helper first for broad Codex self-knowledge, and restrict 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, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries for plugin ordering and availability metadata, or update an existing local plugin during development with the CLI-driven cachebuster and reinstall flow. (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 $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /opt/codex/skills/.system/skill-installer/SKILL.md)\n### How to use skills\n- Discovery: The list above is the skills available in this session (name + description + source locator). `file` entries live on the host filesystem, `environment resource` entries are owned by their execution environment, `orchestrator resource` entries must be accessed through `skills.list` and `skills.read`, and `custom resource` entries use their provider's access mechanism.\n- Trigger rules: If the user names a skill (with `$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 its source 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, the main agent must read its `SKILL.md` completely before taking task actions. For a `file` entry, open the listed path. For an `environment resource`, use the filesystem of the owning environment. For an `orchestrator resource`, call `skills.list` with `{\"authority\":{\"kind\":\"orchestrator\"}}`, select the matching package, and pass its `main_resource` to `skills.read`. If a read is truncated or paginated, continue until EOF.\n 2) When `SKILL.md` references another resource, use the same access mechanism. Resolve relative paths against a filesystem-backed skill directory. For orchestrator skills, pass the exact referenced resource identifier with the same authority and package to `skills.read`; do not treat `skill://` identifiers as filesystem paths.\n 3) If `SKILL.md` points to extra folders such as `references/`, use its routing instructions to identify the resources required for the task. The main agent must read each required instruction or reference file itself before acting on it. Do not delegate reading, summarizing, or interpreting skill instructions to a subagent. Subagents may still perform task work when the selected skill allows it.\n 4) For filesystem-backed skills, prefer running or patching provided scripts instead of retyping large code blocks. For orchestrator skills, use `skills.read` and the available tools; do not invent a local path.\n 5) Reuse provided assets or templates through the same source access mechanism instead of recreating them.\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 - Progressive disclosure applies to selecting relevant files, not partially reading a selected instruction file. Do not load unrelated references, scripts, or assets.\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</skills_instructions>","<permissions instructions>\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</permissions instructions>","turn/started",{"_362":363,"_87":651},{"_103":-5,"_42":369,"_370":652,"_372":373,"_374":375,"_376":653},[],"inProgress",{"_376":655,"_362":363},{"_656":657,"_92":658},"activeFlags",[],"active","thread/started",{"_661":662},"thread",{"_663":-5,"_664":-5,"_665":666,"_667":375,"_439":440,"_668":15,"_669":-5,"_670":-5,"_671":-5,"_672":673,"_42":363,"_674":675,"_181":-5,"_676":-5,"_161":677,"_678":199,"_679":375,"_680":363,"_444":681,"_376":682,"_683":-5,"_77":684,"_685":375},"agentNickname","agentRole","cliVersion","0.144.0-alpha.4","createdAt","ephemeral","extra","forkedFromId","gitInfo","historyMode","legacy","modelProvider","openai","parentThreadId","/opt/codex/sessions/2026/07/18/rollout-2026-07-18T13-06-36-019f7555-f91f-7621-8e4d-00e812db5f45.jsonl","preview","recencyAt","sessionId","vscode",{"_92":380},"threadSource",[],"updatedAt",[],"messages",[689],{"_42":690,"_691":692,"_693":694,"_695":694,"_386":696,"_376":697,"_388":-5,"_698":32,"_699":700,"_701":702,"_703":-5},"b7015f55-39d7-442f-93b9-1ead33c0963f","author",{"_96":307,"_181":-5,"_699":712},"create_time",1784379995.831677,"update_time",{"_708":46,"_709":710},"finished_successfully","weight","metadata",{"_704":705},"recipient","all","channel","l1239dk1",{"_706":707},"inline_comments",[],"content_type","parts",[711],"@codex no more issues ?\nfeat(binder): configure a host-agnostic default for Bind.PropertiesOf\n\n## Summary\n\n`Bind.PropertiesOf(request)` binds with `RequestBinderOptions.Default`, which was a fixed built-in — so the only way to bind with custom options (a naming policy, the overridable structural codes from #147) was `Bind.WithOptions(...)`, threading the configured entry point through every call or resolving it from DI. This makes `RequestBinderOptions.Default` a **settable application default**, configured once at startup with **no DI container needed** (a CLI or worker can set it), and **frozen on first use** so it cannot drift once requests are flowing. `Bind` gains no configuration surface; a per-call `Bind.WithOptions(...)` still overrides it.\n\n## Type of change\n\n* [ ] Bug fix\n* [x] New feature\n* [ ] Breaking change\n* [ ] Refactoring\n* [ ] Analyzer / diagnostic change\n* [x] Tests\n* [x] Documentation\n\n## Changes\n\n* Make `RequestBinderOptions.Default` a settable property (was get-only). Setting it rejects `null` and throws once the first bind has read it (**frozen on first use** — the `JsonSerializerOptions` discipline), so it is configured at composition time and cannot change at runtime. The value is an immutable `RequestBinderOptions`, so there is no shared-mutable-settings hazard.\n* `Bind.PropertiesOf` already reads `RequestBinderOptions.Default`, so `Bind` is unchanged — no configuration method pollutes the `Bind.` surface. `Bind.WithOptions(o)` still overrides per call.\n* Add an internal, scoped, test-only override (`OverrideDefaultForTests`, backed by an `AsyncLocal`) so the library's own suite stays parallel-safe without mutating the process default — the same seam pattern as the ambient clock.\n* Add `DefaultOptionsTests` (7 tests): `Bind.PropertiesOf` binds with the configured default (naming + codes) without `WithOptions`; falls back to the built-in outside the scope; a per-call `WithOptions` wins; the setter rejects `null` and throws after first use.\n* Document configuring the application-wide default in the RequestBinder guide (EN + FR), and add **ADR-0017** (EN + FR).\n\n## Testing\n\n* [x] `dotnet build FirstClassErrors.sln` — succeeded, 0 warnings / 0 errors.\n* [x] `dotnet test FirstClassErrors.sln` — all green (998 total, 0 failed); the freeze and `AsyncLocal` seam do not leak into the other binder tests.\n* [x] Analyzer tests pass (`FirstClassErrors.Analyzers.UnitTests`) — 85 passed.\n\n## Documentation\n\n* [x] Public API / error documentation updated — XML docs on `RequestBinderOptions.Default` and the test seam.\n* [x] README / `doc/` updated — RequestBinder guide (EN), new \"Configuring the default for the whole application\" section.\n* [x] French translation updated — the RequestBinder guide (`RequestBinder.fr.md`) and ADR-0017 (`.fr.md`), in lockstep.\n* [ ] No documentation change required\n\n## Architecture decisions\n\n* [ ] No architectural decision in this pull request\n* [x] New decision recorded — ADR drafted as `Proposed`: ADR-0017\n* [ ] Supersedes an existing ADR — successor proposed, status not flipped: ADR-____\n* [ ] ⚠️ Conflicts with an existing ADR — flagged for the maintainer: ADR-____\n\nADR-0017 records the decision and is **`Accepted`** (per the maintainer). It revisits the process-wide ambient default that ADR-0012 had weighed and rejected as an alternative, adopting it with mitigations (frozen-on-first-use, immutable value, `AsyncLocal` test seam). **ADR-0012 is not superseded** — its own decision (a binder's options are fixed at its entry point) is unchanged and stays `Accepted`.\n\n## Related issues\n\nCloses #181\n\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\n\n---\n_Generated by [Claude Code](https://claude.ai/code/session_01J12ghrzM1xiAKw4LETJDqr)_\n**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\n\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `a74f384183`\n \n\n<details> <summary>ℹ️ About Codex in GitHub</summary>\n \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</details>\nResolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \"first bind on the old default, later binds on the new\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_",{},"created",1784380032.0749006,"Completing the task","event_type","info",{"_92":394,"_96":93,"_386":895},{"_92":720,"_721":722},"partial_repo_snapshot","files",[723,724],{"_161":804,"_726":-5,"_727":805,"_729":-5},{"_161":725,"_726":-5,"_727":728,"_729":-5},"FirstClassErrors.RequestBinder.UnitTests/DefaultOptionsTests.cs","contents","line_range_contents",[730],"missing_reason",{"_731":732,"_733":734,"_386":735,"_736":59},"line_range_start",1,"line_range_end",106,[737,199,738,199,739,199,740,199,741,742,743,744,745,746,747,199,748,749,750,199,751,752,753,199,754,750,199,755,199,756,757,758,759,760,199,761,762,199,763,764,765,750,199,766,767,768,199,769,199,770,771,750,199,772,773,774,775,776,777,778,779,199,780,781,199,782,765,750,199,783,199,784,785,786,787,750,199,788,199,789,790,791,750,199,792,793,794,199,795,796,750,199,797,798,799,750,199,800,199,801,802,765,199,750,199,803],"contains_end_of_file","#region Usings declarations","using NFluent;","#endregion","namespace FirstClassErrors.RequestBinder.UnitTests;","/// <summary>","/// The application-wide <see cref=\"RequestBinderOptions.Default\" />: it is what <see cref=\"Bind.PropertiesOf{TRequest}\" />","/// binds with, configurable once at startup and frozen on first use. These tests inject it through the scoped,","/// parallel-safe test seam (<c>OverrideDefaultForTests</c>) so they never mutate the process default — the binder","/// suite keeps seeing the built-in default.","/// </summary>","public sealed class DefaultOptionsTests {"," private static BookingRequest MissingEmail() {"," return new BookingRequest(null, \"R\", null, null, null, null, null);"," }"," private static Error BindMissingEmail(RequestBinderEnvelopeStage<BookingRequest> start) {"," var bind = start.FailWith(BookingEnvelopeError.CommandInvalid);"," bind.SimpleProperty(r => r.GuestEmail).AsRequired(EmailAddress.Parse);"," return bind.New(_ => \"x\").Error!.InnerErrors.Single();"," // ── Bind.PropertiesOf binds with the configured default ───────────────────────────────────────────────"," [Fact(DisplayName = \"Bind.PropertiesOf binds with the configured default options — naming and structural codes — without WithOptions.\")]"," public void BindPropertiesOfUsesTheConfiguredDefault() {"," var configured = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"ACME_ARGUMENT_REQUIRED\"),"," ErrorCode.Create(\"ACME_ARGUMENT_INVALID\"));"," using (RequestBinderOptions.OverrideDefaultForTests(configured)) {"," Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"ACME_ARGUMENT_REQUIRED\");"," Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"guest_email\");"," }"," [Fact(DisplayName = \"Outside the configured scope, Bind.PropertiesOf falls back to the built-in default.\")]"," public void OutsideScopeFallsBackToBuiltIn() {"," using (RequestBinderOptions.OverrideDefaultForTests(new RequestBinderOptions(new SnakeCaseNameProvider()))) { }"," Error error = BindMissingEmail(Bind.PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"REQUEST_ARGUMENT_REQUIRED\");"," Check.That(BindingAssertions.ArgumentPathOf(error)).IsEqualTo(\"GuestEmail\");"," [Fact(DisplayName = \"A per-call Bind.WithOptions overrides the configured default.\")]"," public void WithOptionsWinsOverTheConfiguredDefault() {"," var appDefault = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"DEFAULT_REQUIRED\"),"," ErrorCode.Create(\"DEFAULT_INVALID\"));"," var perCall = new RequestBinderOptions(new SnakeCaseNameProvider(),"," ErrorCode.Create(\"PERCALL_REQUIRED\"),"," ErrorCode.Create(\"PERCALL_INVALID\"));"," using (RequestBinderOptions.OverrideDefaultForTests(appDefault)) {"," Error error = BindMissingEmail(Bind.WithOptions(perCall).PropertiesOf(MissingEmail()));"," Check.That(error.Code.ToString()).IsEqualTo(\"PERCALL_REQUIRED\");"," // ── The default resolves to the built-in when unconfigured ────────────────────────────────────────────"," [Fact(DisplayName = \"Unconfigured, RequestBinderOptions.Default is the built-in default (default structural codes).\")]"," public void DefaultIsBuiltInWhenUnconfigured() {"," Check.That(RequestBinderOptions.Default.ArgumentRequiredCode == RequestBindingError.DefaultArgumentRequiredCode).IsTrue();"," Check.That(RequestBinderOptions.Default.ArgumentInvalidCode == RequestBindingError.DefaultArgumentInvalidCode).IsTrue();"," // ── Setter contract: null-rejecting and frozen-after-first-use ────────────────────────────────────────"," [Fact(DisplayName = \"Setting RequestBinderOptions.Default to null throws ArgumentNullException.\")]"," public void SettingNullThrows() {"," Check.ThatCode(() => RequestBinderOptions.Default = null!).Throws<ArgumentNullException>();"," [Fact(DisplayName = \"Configuring RequestBinderOptions.Default after the first bind has read it throws — the default is frozen.\")]"," public void ConfiguringAfterFirstUseThrows() {"," _ = RequestBinderOptions.Default; // reading it (as the first bind does) freezes it; idempotent"," Check.ThatCode(() => RequestBinderOptions.Default = new RequestBinderOptions(new SnakeCaseNameProvider()))"," .Throws<InvalidOperationException>();"," [Fact(DisplayName = \"The test seam rejects a null options.\")]"," public void OverrideForTestsRejectsNull() {"," Check.ThatCode(() => RequestBinderOptions.OverrideDefaultForTests(null!)).Throws<ArgumentNullException>();"," private sealed class SnakeCaseNameProvider : IArgumentNameProvider {"," public string GetArgumentNameFrom(System.Reflection.PropertyInfo property) {"," return string.Concat(property.Name.Select((c, i) => i > 0 && char.IsUpper(c) ? \"_\" + char.ToLowerInvariant(c) : char.ToLowerInvariant(c).ToString()));","}","FirstClassErrors.RequestBinder/RequestBinderOptions.cs",[806],{"_731":732,"_733":807,"_386":808,"_736":59},132,[809,199,741,810,811,812,813,746,814,199,815,199,816,817,818,819,820,199,821,822,823,824,825,826,827,828,829,830,831,832,833,199,834,835,836,837,838,199,839,840,765,841,842,199,837,843,844,845,846,199,847,840,765,750,199,821,848,849,850,851,852,827,853,854,855,856,857,199,858,859,199,860,750,199,861,199,862,199,863,864,865,866,867,868,869,870,871,872,869,873,874,875,199,876,877,878,750,199,861,199,879,880,199,881,882,199,883,884,199,885,199,886,199,887,888,199,889,890,765,199,891,892,199,893,894,765,199,750,199,861,199,803],"namespace FirstClassErrors.RequestBinder;","/// The binding options of a <see cref=\"RequestBinder{TRequest}\" />. A binder's options are fixed once, before","/// binding begins — through <see cref=\"Bind.WithOptions\" /> or the application-wide <see cref=\"Default\" /> — and","/// inherited by nested binders; they never change while a binder is binding. The process-wide","/// <see cref=\"Default\" /> may be configured once at application startup and is frozen on first use.","public sealed class RequestBinderOptions {"," #region Statics members declarations"," private static readonly RequestBinderOptions BuiltIn = new(new DefaultArgumentNameProvider());"," private static readonly AsyncLocal<RequestBinderOptions?> TestOverride = new();"," private static readonly object Gate = new();"," private static RequestBinderOptions _default = BuiltIn;"," private static bool _frozen;"," /// <summary>"," /// The application-wide default options that <see cref=\"Bind.PropertiesOf{TRequest}\" /> binds with. Assign it"," /// once at application startup — before any binding — to configure the binder host-wide without threading"," /// options through every call; a per-call <see cref=\"Bind.WithOptions\" /> still overrides it. The first bind"," /// reads it and thereby freezes it, so the default cannot drift once binding has begun. Defaults to the"," /// built-in options (C# property names and the default structural codes)."," /// </summary>"," /// <exception cref=\"ArgumentNullException\">Thrown when set to <c>null</c>.</exception>"," /// <exception cref=\"InvalidOperationException\">Thrown when set after the first bind has already read it.</exception>"," public static RequestBinderOptions Default {"," get {"," RequestBinderOptions? overridden = TestOverride.Value;"," if (overridden is not null) { return overridden; }"," // Freeze and read under the gate: a concurrent set() either wins entirely (before any read froze the"," // default) or observes the freeze and throws — never a torn \"first bind on the old default, later binds"," // on the new one\". The gate is uncontended once the default is configured at startup."," lock (Gate) {"," _frozen = true;"," return _default;"," }"," set {"," if (value is null) { throw new ArgumentNullException(nameof(value)); }"," if (_frozen) {"," throw new InvalidOperationException("," \"RequestBinderOptions.Default was already read by a binding; configure it once at application startup, before the first bind.\");"," }"," _default = value;"," /// Test-only seam: overrides <see cref=\"Default\" /> for the current execution context until the returned scope"," /// is disposed. Backed by an <see cref=\"AsyncLocal{T}\" />, so it flows with the test's context and never leaks"," /// across tests running in parallel — the same pattern as the ambient clock. It does not touch the production"," /// default and never freezes it. Internal, for the library's own tests; a consumer-facing seam belongs in a"," /// dedicated testing package."," /// <param name=\"options\">The options to bind with while the scope is active.</param>"," /// <returns>A scope that restores the previous override when disposed.</returns>"," /// <exception cref=\"ArgumentNullException\">Thrown when <paramref name=\"options\" /> is <c>null</c>.</exception>"," internal static IDisposable OverrideDefaultForTests(RequestBinderOptions options) {"," if (options is null) { throw new ArgumentNullException(nameof(options)); }"," RequestBinderOptions? previous = TestOverride.Value;"," TestOverride.Value = options;"," return new TestOverrideScope(previous);"," #endregion"," #region Constructors declarations"," /// <summary>Instantiates options with the given argument-name provider and, optionally, custom structural error codes.</summary>"," /// <param name=\"argumentNameProvider\">The provider resolving the argument name of a bound DTO property.</param>"," /// <param name=\"argumentRequiredCode\">"," /// The code raised when a required argument is missing. <c>null</c> keeps the default"," /// <see cref=\"RequestBindingError.DefaultArgumentRequiredCode\" /> (<c>REQUEST_ARGUMENT_REQUIRED</c>); pass a"," /// code of your own catalog's convention to keep the binder's failures consistent with your other error codes."," /// </param>"," /// <param name=\"argumentInvalidCode\">"," /// The code raised when an argument is present but fails to convert. <c>null</c> keeps the default"," /// <see cref=\"RequestBindingError.DefaultArgumentInvalidCode\" /> (<c>REQUEST_ARGUMENT_INVALID</c>)."," /// <exception cref=\"ArgumentNullException\">Thrown when <paramref name=\"argumentNameProvider\" /> is <c>null</c>.</exception>"," public RequestBinderOptions(IArgumentNameProvider argumentNameProvider, ErrorCode? argumentRequiredCode = null, ErrorCode? argumentInvalidCode = null) {"," if (argumentNameProvider is null) { throw new ArgumentNullException(nameof(argumentNameProvider)); }"," ArgumentNameProvider = argumentNameProvider;"," ArgumentRequiredCode = argumentRequiredCode ?? RequestBindingError.DefaultArgumentRequiredCode;"," ArgumentInvalidCode = argumentInvalidCode ?? RequestBindingError.DefaultArgumentInvalidCode;"," /// <summary>The provider resolving the argument name of a bound DTO property (see <see cref=\"IArgumentNameProvider\" />).</summary>"," public IArgumentNameProvider ArgumentNameProvider { get; }"," /// <summary>The code the binder raises when a required argument is missing (defaults to <c>REQUEST_ARGUMENT_REQUIRED</c>).</summary>"," public ErrorCode ArgumentRequiredCode { get; }"," /// <summary>The code the binder raises when an argument is present but fails to convert (defaults to <c>REQUEST_ARGUMENT_INVALID</c>).</summary>"," public ErrorCode ArgumentInvalidCode { get; }"," #region Nested types"," private sealed class TestOverrideScope : IDisposable {"," private readonly RequestBinderOptions? _previous;"," private bool _disposed;"," internal TestOverrideScope(RequestBinderOptions? previous) {"," _previous = previous;"," public void Dispose() {"," if (_disposed) { return; }"," _disposed = true;"," TestOverride.Value = _previous;",[896,897,898,899,900,901],{"_708":46,"_46":911},{"_708":903,"_161":804,"_731":909,"_733":910},{"_708":903,"_161":804,"_731":907,"_733":908},{"_708":46,"_46":906},{"_708":903,"_161":725,"_731":904,"_733":905},{"_708":46,"_46":902},"\n\n**Testing / checks**\n* ✅ `git status --short`\n* ✅ `git diff --stat 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD`\n* ✅ `git diff --name-only 12bf086c4aa63e8a19a90146c0a644977187f2b2..HEAD`\n* ⚠️ `dotnet test FirstClassErrors.RequestBinder.UnitTests/FirstClassErrors.RequestBinder.UnitTests.csproj --no-restore` — could not run because `dotnet` is not installed in this environment.","repo_file_citation",30,95,"\n\nI also checked the related tests around the scoped test override, default fallback, per-call override, null rejection, and frozen-after-first-use behavior; I did not find another actionable issue in that area. ",28,53,15,17,"No blocking issue found in my follow-up review.\n\nThe previously reported concurrency issue appears resolved: `RequestBinderOptions.Default` now uses the same `Gate` lock for both the freeze/read path and the setter path, so a setter can either complete before the first read freezes the default, or observe `_frozen` and throw after the first read. ",{"_92":307,"_42":84,"_96":307,"_914":915,"_916":917,"_918":919,"_132":-5,"_119":920},[83],"input_items",[939,940,941,942,943],"external_post_config",{"_921":922,"_244":245,"_923":287,"_256":-5,"_924":238,"_925":-5,"_926":-5,"_927":928,"_929":930,"_931":-5,"_932":-5,"_933":934,"_935":15,"_936":59,"_937":54,"_938":15},"user_model_slug","slug",1784379990.252363,"installation_id",72237377,"pr_number","repo_id","gitlab_service_account_project_id","review_trigger","comment_id",5011364621,"comment_type","issue","pr_write_guard_token","pending_pr_reaction_id","pending_comment_reaction_id",384514836,"comment_if_no_findings","comment_on_error","share_url","is_parallel_review",{"_92":394,"_96":307,"_386":954},{"_294":295,"_296":297,"_951":301,"_952":129,"_303":-5,"_92":953},{"_92":944,"_296":950,"_161":804,"_946":947,"_948":-5},{"_92":944,"_296":949,"_161":-5,"_946":-5,"_948":-5},{"_92":944,"_296":945,"_161":804,"_946":947,"_948":-5},"pull_request_comment","Resolved in 21bf130. The freeze/check/assign is now guarded by a lock: a concurrent `Default` set either wins before any read has frozen the default, or observes the freeze and throws — so the \"first bind on the old default, later binds on the new\" tear can no longer happen. The gate is uncontended once the default is configured at startup.\n\n---\n_Generated by [Claude Code](https://claude.ai/code)_","side","RIGHT","line","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `a74f384183`\n \n\n<details> <summary>ℹ️ About Codex in GitHub</summary>\n \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</details>","**![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat) Make Default's freeze atomic**\n\nWhen a late `RequestBinderOptions.Default` assignment races the first `Bind.PropertiesOf` call, this check can observe `_frozen == false`, then the getter can set `_frozen = true` and return the old options, and the setter can still assign `_default` afterwards. That leaves the first binding on the built-in options and later bindings on the new options, violating the frozen-on-first-use guarantee; protect the freeze/check/assignment with the same lock or an equivalent atomic state transition.\n\nUseful? React with 👍 / 👎.","base_ref","head_ref","pull_request_info",[955],{"_708":46,"_46":956},"@codex no more issues 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