Update Project Docs

This repository keeps an unusually large, multi-surface, multi-language doc set. Docs drift silently because a change often belongs in 6–10 files across 3 languages plus two HTML pages. This skill encodes which docs exist, which change-types touch which docs, and how to propagate consistently (including the wiki i18n + cache-bump dance).

Authoritative inventory with exact section anchors lives in references/doc-map.md - read it when deciding where a specific change lands. The repo rule .claude/rules/docs-markdown.md ("update all affected docs together") and .claude/rules/wiki-i18n.md are binding.

When to update (including without being asked)

Update docs in the same change-set (PR/commit) as the code, before claiming done - do not wait for the user to ask - whenever the change is observable from outside the module:

• New/changed env var → every env-var table + .env.example.
• New event type (e.g. an events.event_type value) → every event-type list/table.
• New/changed hook behavior or session/agent state transition → hook docs + every state-machine diagram.
• New/changed API route or response shape → API docs + route tables + OpenAPI.
• DB schema change (table/column/index) → database docs + ERD.
• New WebSocket message type → client/server WS docs.
• New MCP tool → MCP docs.
• New CLI command / script / renamed file referenced in docs → command lists + onboarding guides.
• New user-facing feature / page / background service → feature tables + landing + wiki + architecture.

Do NOT auto-update for: pure internal refactors with no observable/interface/config change, test-only changes, comment/typo fixes, or work the user explicitly scoped as "no docs". When unsure whether a change is observable, check the mapping below; if it touches any row, update.

Change → docs mapping

Procedure

1. Classify the change against the table above. A change can hit multiple rows (a new feature with a new env var hits both).
2. Write the canonical English version first - usually README.md and/or ARCHITECTURE.md. Get the wording right there; it anchors everything else.
3. Propagate to translations README-VN.md and README-CN.md: mirror the SAME edits at the corresponding sections. Keep identifiers, env-var names, event names, and code in English; translate only prose. Render "Waiting" as Đang chờ (vi) / 等待中 (zh). Match each file's existing terminology - read the neighboring lines first.
4. Landing page index.html: one concise marketing sentence in the most relevant existing feature card - light touch, no new sections.
5. Wiki wiki/index.html: add the detailed prose/table/diagram, then follow .claude/rules/wiki-i18n.md - add zh + vi entries for every new English string to wiki/i18n-content.js, then bump the cache: increment CACHE_NAME in wiki/sw.js and the i18n-content.js?v= query string in wiki/index.html. Skipping the cache bump means returning visitors never see the update.
6. Area READMEs / docs/: update server/README.md, client/README.md, and the relevant docs/*.md per the mapping.
7. Diagrams: when a state transition changes, edit every mermaid stateDiagram-v2 block that models it (they are duplicated across README/VN/CN, server/README, docs/DATABASE, wiki). Keep transition labels consistent.

Verify (do not skip)

• Coverage: run scripts/doc-coverage.sh <new-term> [...] (e.g. the new env var / event type / identifier) and confirm every doc the mapping flags shows a HIT. The matrix is advisory - not every term belongs in every file - but a flagged doc reading 0 is a miss to fix.
• Tables: markdown tables stay pipe-balanced (header column count == every row).
• Mermaid: each edited block still parses (valid source --> target: label).
• i18n: every new wiki English string resolves to both zh and vi; cache versions bumped.
• Format/tests: run npm run format (or prettier --check on touched files); for any code touched, run the verification from CLAUDE.md (npm run test:server / test:client / mcp:typecheck).
• State exactly which docs were updated and which were intentionally skipped (with reason), mirroring the repo's verification policy.

Tips

• The fastest way to find where something already lives: grep -n "<existing-neighbor-term>" <doc> (e.g. grep an adjacent env var to find the env table). references/doc-map.md lists the stable anchors per file.
• Parallelize translations + HTML across subagents when the change is large, but write the canonical English edit yourself first so the translations have a faithful source.
• One language/area per subagent keeps edits reviewable and tables un-corrupted.