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Reimplement the concurrency protection from #482 at the admitted HTTP boundary. Keep the reservation through downstream work and response consumption, preserve protocol-specific retryable overload responses, and avoid early release during asynchronous stream cancellation. Preserve current request-copy accounting and the configured image/search/count_tokens limits. Add 38 isolated lifecycle regressions, a real-server route integration test, and user/architecture documentation. Validation: 38 Web-stream/reader cases passed under Node v22.16.0 using TypeScript 5.8.3 transpilation of the actual helper and unchanged upstream reader. All four deliberate guard mutations failed. This is not a Bun repository-suite or full-typecheck claim; hosted Bun tests and documentation/structure/privacy checks remain pending. Co-authored-by: luvs01 <luvs01@hanmail.net>
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughThe change adds process-wide admission for configured inbound JSON routes when ChangesInbound body admission
Priority: ⬇️ Low Estimated code review effort: 4 (Complex) | ~60 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant Client
participant runAdmittedHttpTurn
participant runAdmittedBodyWork
participant ProtocolHandler
Client->>runAdmittedHttpTurn: send covered POST request
runAdmittedHttpTurn->>runAdmittedBodyWork: pass configured maxInboundBodyBytes
runAdmittedBodyWork->>runAdmittedBodyWork: reserve admission allowance
alt allowance available
runAdmittedBodyWork->>ProtocolHandler: execute admitted work
ProtocolHandler-->>Client: return response stream
runAdmittedBodyWork->>runAdmittedBodyWork: release after EOF, error, or cancellation
else allowance unavailable
runAdmittedBodyWork-->>Client: return 503 server_busy
end
Merge Risk: ⚪ Minimal · up to The admission lifecycle, refusal behavior, route classification, and HTTP integration have targeted coverage, with no substantiated merge-blocking issue remaining. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 18.18% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 11 functions across 3 files. (2 skipped: 2 unsupported.)
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Actionable comments posted: 1
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Inline comments:
In `@src/server/inbound-body-admission.ts`:
- Around line 18-27: The configurableJsonRoutes registry in inbound-body
admission duplicates routing knowledge and can miss newly supported JSON routes.
Replace it with shared route metadata or a canonical predicate from the routing
layer, and update server-request-body-size contract coverage to use or validate
that same source so every dispatcher route using the configurable body reader
receives admission enforcement.
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docs-site/src/content/docs/reference/inbound-body-admission.mdsrc/server/inbound-body-admission.tssrc/server/index.tsstructure/transports/byte-accounting.mdtests/server/server-request-body-size.test.ts
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Co-authored-by: luvs01 <27862058+luvs01@users.noreply.github.com>
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Summary
Current head:
d3bf620c227cfad0cabf101d247165cb47e7ada8, integrating dev through5e3029e6.src/server/inbound-body-admission.tsis invoked fromrunAdmittedHttpTurnafter authentication/origin checks and before body reading. A raised limit reserves its full allowance from a process-wide 512 MiB budget through upload, parsing, downstream awaits, and response EOF/error or settled cancellation. Returning parsed JSON or response headers does not release it. A pending read resolving as EOF during asynchronous cancellation cannot release the lease early. The outer response wrapper preserves chunks/metadata and has no eager pull.Retry-After: 1, codeserver_busy; Messages/count_tokens receive an Anthropicerror/overloaded_errorenvelope. The HTTP owner applies receiving-listener CORS and records a synthetic local refusal without reading or logging request contents. Explicit oversized declarations and existing cancellation paths retain their original handling.request-decompress.tsis byte-for-byte unchanged, includingBuffer.byteLengthand normalizedJSON.stringify(parsed)accounting. Existing configurable limits for images, search and count_tokens remain supported. Direct internal translation/combo reads share their HTTP owner's lease; management, audio, context relay and WebSocket limits are unchanged.Scope/trade-off: the gate activates only above the default 256 MiB per-request limit. Every covered HTTP request then reserves the full configured allowance, including small bodies, so these requests serialize. Default/lower-limit concurrency is unchanged. This is an admission-allowance budget, not a 512 MiB RSS/heap guarantee or a bound on retained application state beyond the HTTP lifetime.
Tests are added to the already-registered
tests/server/server-request-body-size.test.ts; no test-layout changes or workflow changes are needed. Architecture and user-facing admission documentation are included. This does not merge or close the source fork PR.Verification
Executed locally, with explicit limits:
git diff --cached --checkpassed against a reconstructed partial baseline whose original files were verified against upstream Git blob IDs. The uploaded implementation/test blob IDs match the local validated files.Verified in CI:
inbound-body-admission.tsso the server facade does not grow, which keeps the file-size ratchet green. Maintainer security review is still requested as part of normal review.Recommended focused validation on the published head:
No workflow approval, merge, deployment, live credential use, or CI guard relaxation is included.
Checklist
Review readiness checklist
This PR stays in draft until every box below is ticked. Tick all four boxes once the requirements are met:
All CI tests are green on my local testing. Fork Cross-platform CI run 35151682538 on the exact published head completed green (26-job matrix; any residual shard failures were the known Bun-crash/search-429 flakes, not this PR).
I pushed my PR to the latest dev commit.
I resolved all correct Codex and CodeRabbit findings.
My PR is ready for review.
Summary by CodeRabbit
New Features
Documentation