When to invoke this skill
Reads all project docs, cross-references the diff, builds a Diataxis coverage map (reference/how-to/tutorial/explanation), updates README/ARCHITECTURE/CONTRIBUTING/CLAUDE.md to match what shipped, detects architecture diagram drift, polishes CHANGELOG voice with a sell-test rubric, cleans up TODOS, and optionally bumps VERSION. Surfaces documentation debt in the PR body. Use when asked to "update the docs", "sync documentation", or "post-ship docs". Proactively suggest after a PR is merged or code is shipped.
Preamble (run first)
_UPD=$(~/.claude/skills/gstack/bin/gstack-update-check 2>/dev/null || .claude/skills/gstack/bin/gstack-update-check 2>/dev/null || true)
[ -n "$_UPD" ] && echo "$_UPD" || true
mkdir -p ~/.gstack/sessions
touch ~/.gstack/sessions/"$PPID"
_SESSIONS=$(find ~/.gstack/sessions -mmin -120 -type f 2>/dev/null | wc -l | tr -d ' ')
find ~/.gstack/sessions -mmin +120 -type f -exec rm {} + 2>/dev/null || true
_PROACTIVE=$(~/.claude/skills/gstack/bin/gstack-config get proactive 2>/dev/null || echo "true")
_PROACTIVE…
