Update docs

/update-docs

Keep documentation in sync with code. Detects what changed, updates the right tiers, leaves changes staged for review.

How it works

1. Detect changes  → git diff vs main (or vs HEAD if standalone)
2. Classify        → categorize files into doc tiers
3. Update          → edit relevant docs per tier
4. Verify stats    → run stats tools, refresh counts
5. Stage           → git add (no commit — let parent commit per-phase)

Bundling behavior

When called from /ship (Phase D):

• Apply doc updates
• Stage changes (git add)
• Do NOT commit — let /ship commit as docs(<scope>): sync documentation
• Return summary of what was updated

When called standalone:

• Apply doc updates
• Commit as docs: update documentation

Phase 1: Detect Changes

BRANCH=$(git branch --show-current)
BASE=$(git merge-base origin/main HEAD 2>/dev/null || echo HEAD~5)
git diff --name-only $BASE..HEAD
git diff --name-only HEAD  # also include unstaged

<!-- CONFIGURE: Adjust exclude patterns for your project (e.g., lockfiles, generated files) -->

Phase 2: Documentation Tiers

Tier	Files	Trigger
1 Core	README.md, CLAUDE.md, top-level package READMEs	Any significant change
2 Architecture	docs/architecture.md, docs/database-schema.md	Structural changes
3 Journey	docs/journey/*.md (user flows)	Business logic changes
4 Claude Config	.claude/rules/*.md, .claude/skills/**/references/*.md	Tool/workflow changes

<!-- CONFIGURE: Replace tier paths to match your project's doc layout. Remove tiers you don't use. -->

Phase 3: Stats Verification

If your project has a stats sync tool, run it first — it's the single source of truth for counts in README/CLAUDE.md.

# Example — replace with your project's tool
bun run tools/stats-sync.ts --update    # writes diffs into core docs
bun run tools/stats-sync.ts             # check-only mode for CI

<!-- CONFIGURE: Replace with your stats sync command, or remove if you don't track counts in docs -->

If no automated tool, verify common counts manually:

# Components, endpoints, tests — adjust globs to your structure
find src/components -name "*.tsx" | wc -l
grep -rcE "@(Get|Post|Patch|Delete|Put)\(" --include="*.ts" src/api/

Phase 4: Per-Change Update Checklist

Change type	Update
New feature	README features list, relevant journey doc, CLAUDE.md if it affects how AI agents work
New API endpoint	API doc / journey doc with endpoint table, CLAUDE.md endpoint count
New component	Component README, design system doc if it introduces a pattern
Database change	docs/database-schema.md, migration notes, related journey docs
Config change	Doc that explains the config option, rule files that reference it
Refactor	Update file paths in any doc that linked to moved/renamed files
Dependency upgrade	CHANGELOG, README if version is documented

<!-- CONFIGURE: Add change types specific to your project -->

Phase 5: Stage & Report

git add README.md CLAUDE.md docs/ .claude/

Report format:

Documentation Update — Summary
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Scope: <auto-detected files>
Updated:   path/to/doc.md — what changed
Verified:  Components: X | Tests: X | Endpoints: X
Skipped:   path/to/doc.md — already up to date
Manual:    path/to/doc.md — needs human review (reason)

Guidelines

• Concise — lead with the answer, not the context
• Scannable — tables, bullet lists, headers
• Cross-reference, don't duplicate — link to related docs
• Match code reality — every code example, path, count must match the current code
• Stage everything, commit nothing when called from /ship

Exit conditions

• All affected tiers updated, OR
• Reported as "no doc-worthy changes" if diff is purely internal (formatting, comments, test-only)
• Manual-review items flagged with reason