Fail closed when a discovered route module cannot be read

[ScriptedAlchemy]

compileRouteGraph treated every readFile failure as a racing deletion. That made EACCES / EIO / EMFILE look like a vanished module: extract and validate skipped, and inspect / validate reported no error.

Change

readRouteModuleText now uses the existing isErrno helper — the same disappearance check as discoverState and readProjectIgnoreRules.

Error	Behavior
ENOENT	Silent skip (undefined text). Extract/validate stay off, same as a later snapshot that no longer lists the file.
Everything else (EACCES, EIO, EMFILE, EISDIR, ENOTDIR, EPERM, uncoded errors, …)	Rethrow. Not a new ABxxxx — route graph has no unreadable-source diagnostic, and this PR does not invent one.

Tests

• ENOENT after glob still compiles the discovered route with empty config and no diagnostics.
• After discovery, replacing the route file with a directory (EISDIR) rejects compileRouteGraph instead of omitting the module. This is deterministic across platforms; it does not depend on chmod 000.

Local proof (after pnpm build):

pnpm exec rstest --config rstest.unit.config.ts packages/agent-bundle/tests/route-graph.test.ts \
  -t 'skips extract and validate when a discovered route module disappears before read|fails closed when a discovered route module cannot be read'
# 2 passed (ENOENT race + EISDIR fail-closed)

pnpm exec rstest --config rstest.unit.config.ts packages/agent-bundle/tests/route-graph.test.ts
# 66 passed

pnpm exec rslint packages/agent-bundle/src/routes/graph.ts packages/agent-bundle/tests/route-graph.test.ts
# passed

Draft only; do not merge.

  

[changeset-bot]

🦋 Changeset detected

Latest commit: 3881ffc

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
agent-bundle	Patch
create-agent-bundle	Patch

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[pkg-pr-new]

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle@791

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npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/@agent-bundle/runtime@791

commit: 3881ffc

[chatgpt-codex-connector]

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Reviewed commit: 3881ffc785

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[chatgpt-codex-connector]

Document unreadable route failures in both locales

When a discovered route module produces EACCES, EIO, or another non-ENOENT read error, this new throw changes the observable behavior of the public compileRouteGraph API and the build, inspect, and validate flows, but the commit does not update a matching page under either website/docs/en/** or website/docs/zh/**. Document the new fail-closed behavior in both locales so users know these commands no longer treat unreadable route modules as absent.

AGENTS.md reference: AGENTS.md:L89-L95

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[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-12T15:21:55.183444Z	3881ffc	Draft marked ready

ℹ️ About Codex in GitHub

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• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

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