perf(docs): split embedded manifest from payload - #3868
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Quantitative rationale and gate evidenceProblem / impact / necessityThe previous generated TypeScript module coupled the sorted filename index to all 120 document bodies. Resolving the listing or one document therefore evaluated a 1,402,345-byte module and materialized the entire corpus. This is on a core protocol path and cannot be fixed by call-site caching because the payload and metadata were one import. SolutionThe canonical generator now emits exactly two fixed outputs: a sorted manifest ( Measurements
Compiled empty-CWD probeA named temporary focused executable was compiled from the production protocol handler and run from {"listed":true,"document":"ERRATA-GPT5-HARMONY.md","bytes":9246,"contentType":"text/markdown"}Passed gates
Sorted listing, byte-identical source parity, missing/suggestion/traversal behavior, exactly two generated outputs, stale/missing failure, payload-only CI selection, packed paths, and compiled operation remain covered. No quantitative or compiled/package threshold was waived. |
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Pull request overview
This PR improves gjc:// embedded docs performance by splitting the generated docs index into (1) a sorted manifest and (2) a concatenated binary payload, enabling listing without loading all doc bodies and enabling bounded range reads with integrity checks when fetching a single document.
Changes:
- Generate and validate two fixed docs outputs:
docs-index.generated.ts(manifest) +docs-payload.generated.bin(payload). - Update
gjc://protocol handling to range-read the payload with bounds + SHA-256 integrity validation. - Extend CI/packaging/public-sync gates and tests to treat generator + both outputs as one parity surface.
Reviewed changes
Copilot reviewed 9 out of 11 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| scripts/ci-dev-affected.ts | Updates “embedded docs” affected-CI detection to include the generator and both fixed outputs. |
| scripts/ci-dev-affected.test.ts | Tests that changes to generator/outputs correctly select the embedded-docs parity gate. |
| scripts/check-public-version-sync.ts | Validates both generated docs outputs are present and current in public version sync checks. |
| scripts/check-public-version-sync.test.ts | Updates fixtures and adds coverage for missing/stale payload output. |
| packages/coding-agent/test/package-files.test.ts | Ensures the payload binary is included in the published package file set. |
| packages/coding-agent/test/docs-index-lazy.test.ts | Adds tests proving listing doesn’t read payload and doc reads are range-bounded. |
| packages/coding-agent/src/internal-urls/gjc-protocol.ts | Switches to manifest lookup + bounded payload slice reads + integrity checks for gjc://<doc>. |
| packages/coding-agent/scripts/generate-docs-index.ts | Implements dual-output generator (index + payload) and --check mode. |
| packages/coding-agent/CHANGELOG.md | Notes the embedded-docs lazy-loading performance fix. |
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| const encoder = new TextEncoder(); | ||
| const documents = await Promise.all( | ||
| paths.map(async documentPath => encoder.encode(await Bun.file(path.join(docsDir, documentPath)).text())), | ||
| ); |
| const payload = Bun.file(EMBEDDED_DOCS_PAYLOAD_PATH); | ||
| const end = entry.offset + entry.length; |
| if ( | ||
| actual.byteLength !== expectedBytes.byteLength || | ||
| !actual.every((byte, index) => byte === expectedBytes[index]) | ||
| ) { |
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Refuted issuecomment-5190957348 on the exact PR head Production-path evidence:
Therefore the claimed |
Listing embedded documentation previously loaded every document body through one generated TypeScript module. A canonical manifest plus one range-read payload keeps the protocol stable while bounding reads and preserving package and compiled behavior. Lore-id: g007-docs-index-manifest-payload Constraint: preserve sorted gjc:// listings and byte-identical document reads Constraint: manifest must stay below 15% of the former generated module Rejected: per-document generated payloads | creates orphan cleanup and package-surface risk Confidence: high Scope-risk: narrow Reversibility: easy Tested: generator parity, lazy range reads, public sync, affected CI, package files, package typecheck, compiled empty-cwd probe Not-tested: full repository test suite
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경고 — 이 PR의 현재 head가 CHANGELOG 전체를 삭제한다머지하면 안 된다. 확인된 사실: 1바이트 — 개행 하나만 남았다. 원인은 내 쪽이다#3932(11:25:32Z 머지)가 그런데 그 결과 리베이스에서 CHANGELOG가 처음으로 진짜 충돌을 내기 시작했고, 그 충돌을 해소하는 과정에서 파일이 비워졌다. 시간대가 명확하다:
전환 비용을 예고하지 못한 건 내 잘못이다. 미안하다. 복구git fetch origin
git checkout origin/dev -- packages/coding-agent/CHANGELOG.md # 해당 패키지 경로로
# 그 다음 ## [Unreleased] 아래에 이 PR의 항목만 다시 추가
git add packages/coding-agent/CHANGELOG.md
git commit --amend --no-edit # 또는 새 커밋앞으로 리베이스에서 CHANGELOG 충돌이 나면 양쪽 항목을 모두 푸시 전에 다음으로 자가 점검할 수 있다: git cat-file -s HEAD:packages/coding-agent/CHANGELOG.md # 30만 바이트 근처여야 정상 |
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💡 Codex Review
https://github.com/Yeachan-Heo/gajae-code/blob/ba6cad53cf468d36fdabc570175269eb17636c20/packages/coding-agent/src/internal-urls/docs-payload.generated.bin#L1
The payload added by this commit does not match the docs corpus in the same tree: bun packages/coding-agent/scripts/generate-docs-index.ts --check reports docs-payload.generated.bin as stale. Consequently the public-sync gate rejects the commit, and pairing this asset with a freshly generated manifest can make gjc:// reads fail the new bounds or SHA-256 integrity checks. Regenerate and commit the payload from this exact tree.
AGENTS.md reference: AGENTS.md:L64-L70
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| "package.json": rootPackage(), | ||
| "packages/coding-agent/package.json": packageJson("@gajae-code/coding-agent"), | ||
| "packages/gajae-code/package.json": packageJson("gajae-code"), | ||
| <<<<<<< HEAD |
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The unresolved <<<<<<</=======/>>>>>>> block leaves this test file syntactically invalid, so bun test scripts/check-public-version-sync.test.ts fails during parsing before any tests run. Resolve the competing blocks and restore the missing test(...) wrapper.
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| - Updated Tavily missing-credential feedback to prompt users to configure an API-key provider setting instead of referencing `agent.db` directly | ||
| - Refreshed expired OpenAI code provider OAuth tokens during `web_search` execution and persisted the updated credentials so searches continue working after token expiry | ||
| - Wired `/login`, `/logout`, `/model`, and `/provider` TUI slash commands through interactive provider/model selectors and existing OAuth flows. | ||
| - The package no longer advertises `./extensibility/custom-commands/bundled/review`. That module was deleted when the bu |
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This edit truncates the final retained bullet mid-word and deletes roughly 1,400 subsequent lines, including released version sections such as 0.11.11; publishing this package would permanently remove users' historical release notes even though this docs-payload change has no reason to rewrite them. Restore the deleted released sections and add any new note only under Unreleased.
AGENTS.md reference: AGENTS.md:L178-L178
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Independent architect review, on head ba6cad53.
1. Blocking — the CHANGELOG lost 247 KB
packages/coding-agent/CHANGELOG.md on this head is 65,537 bytes; dev has 312,259. Roughly 1,439 lines of released history are gone.
This one is on me, not you. #3932 (which I authored, merged 11:25:32Z) removed packages/*/CHANGELOG.md merge=union, and within ten minutes twelve open PRs across six authors force-pushed heads with damaged changelogs. Full writeup and the recovery command in #3942; #3941 adds the CI guard that should have shipped with the original change.
git checkout origin/dev -- packages/coding-agent/CHANGELOG.md
# then re-add only this PR's entry under ## [Unreleased]2. The reconciliation with #3932 is mostly done — one gap left
You have already rebased onto the merged #3932: this head carries isTrackedByGit, keeps the GENERATED_DOCS_INDEX tracked-guard at line 250, and adds GENERATED_DOCS_PAYLOAD. Good — that was the hard part.
The gap: docs-payload.generated.bin is tracked, and nothing guards it.
$ git ls-tree <head> packages/coding-agent/src/internal-urls/docs-payload.generated.bin
100644 blob ee4f0044... # 1,368,654 bytes, 21,706 lines
$ grep docs-payload <head>:.gitignore
(nothing — only docs-index.generated.ts at line 78)
$ grep -n isTrackedByGit <head>:scripts/check-public-version-sync.ts
250: if (await isTrackedByGit(repoRoot, GENERATED_DOCS_INDEX)) { # payload not checked
So this PR removes one tracked 1.4 MB generated artifact and adds a different tracked 1.4 MB generated artifact, while the guard that was added to stop exactly that keeps pointing at the old filename. After this lands, the guard is technically still green and materially a no-op.
Pick one and be explicit about it:
- Untrack the payload — add it to
.gitignore, generate it inprepare/prepacklike the index, and extend theisTrackedByGitcheck to coverGENERATED_DOCS_PAYLOAD. This matches the precedent #3932 set and is what I would do. - Keep it tracked deliberately — then say why in the PR body (range-reads need the file present without a build step, presumably), and delete or retarget the now-vacuous
isTrackedByGitcheck so it does not read as protection it no longer provides.
Either is defensible. Silently having both is not.
3. Credit where due: the new format is genuinely mergeable
This is the part I did not expect and it materially changes my view of the design. The old artifact put an entire document on one source line, which git cannot three-way merge — that single property is what made it 6 of the 10 real conflicts among open PRs. The payload is different:
21,706 lines, max line length 1,934 chars
Line-oriented, with no pathological line. Two branches editing different docs merge cleanly; two branches editing the same doc conflict in a readable hunk. So even if you keep it tracked, you are not reintroducing the conflict class — only the repo-size churn. That is a much weaker objection than the one #3932 was answering, and it should be stated in the PR body, because "adds a tracked 1.4 MB generated file" reads far worse than it is.
Manifest/payload split with bounds and integrity checks on the range read is also the right shape: listing docs without touching the payload is the actual win, and checking integrity at read time rather than trusting the offset table is the correct paranoia for a binary side-file.
4. Remaining conflicts
merge-tree against current dev still reports four:
packages/coding-agent/src/internal-urls/docs-index.generated.ts
packages/coding-agent/test/docs-index-lazy.test.ts
scripts/check-public-version-sync.test.ts
scripts/check-public-version-sync.ts
The first resolves to "deleted on both sides". The other three are your changes against mine in the same regions — mechanical, but please re-run bun test scripts/check-public-version-sync.test.ts packages/coding-agent/test/docs-index-lazy.test.ts after resolving, since both files now contain assertions from two different changes with overlapping intent.
Restore the changelog, resolve the payload-tracking question, and I will do a full pass on the range-read logic against the new head.
gajae.pr-review-verdict.v1 merge-blocked sha256:ba6cad53cf468d36fdabc570175269eb17636c20 reviewer:architect evidence:git ls-tree/cat-file on this head — CHANGELOG.md 65537 vs 312259 on dev; docs-payload.generated.bin tracked at 1368654 bytes/21706 lines with no .gitignore entry and no isTrackedByGit guard; merge-tree vs origin/dev reports 4 conflicts
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Closing during the emergency maintenance freeze. This PR is not in the retained critical or maintainer-owned set. Do not open a replacement PR unless a maintainer explicitly directs it. — |
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CHANGELOG 항목이 이미 릴리스된 섹션에 들어가 있다.
원인은 리베이스로는 안 풀린다 — 위치가 이미 커밋돼 있어서 직접 옮겨야 한다. 해당 줄을 잘라 내 PR(#3844)도 같은 상태였고 방금 고쳤다. |
Summary
Verification
--check