* feat(#770): register Claude Code lifecycle hooks (SubagentStop/Stop/PreCompact/FileChanged) Wire three new context-tracking events (SubagentStop, Stop, PreCompact) to gsd-context-monitor so context-headroom warnings surface at model-stop and subagent-finalisation moments — not just on PostToolUse. Add a new FileChanged hook (gsd-config-reload.js) that hot-reloads .planning/config.json context mid-session when the user edits it, injecting a config summary as hookSpecificOutput.additionalContext. Updates plugin manifest hooks.json, managed-hooks-registry, installer-migration-report allowlist, and shell-command-projection cleanup tables. Tests: 21 new assertions in enh-770-claude-hook-events.test.cjs; enh-788 and issue-766 test suites updated. Closes #770 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * docs(#770): document newly-registered Claude Code lifecycle hooks Add a Hook coverage table to the Claude Code npm installer section of docs/how-to/install-on-your-runtime.md describing SubagentStop, Stop, PreCompact, and the new FileChanged (gsd-config-reload.js) hook that hot-reloads .planning/config.json mid-session. Also fixes the changeset frontmatter (adds type: Added + pr: 821) so docs-lint can consume the fragment. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#770): add gsd-config-reload.js to INVENTORY.md and regenerate manifest The feat commit added hooks/gsd-config-reload.js but did not bump the Hooks count in docs/INVENTORY.md (14→15) or add the new row, and did not regenerate docs/INVENTORY-MANIFEST.json. Both inventory-counts and inventory-manifest-sync tests failed across the full CI matrix. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#770): make lifecycle-hook tests deterministic on scoped runner Replace the shared hooks/dist/ ensemble setup (ensureHooksDist / teardownHooksDist) in the Claude hook tests with per-test isolation: pre-populate each test's own tmpDir/.claude/hooks/ with stub files and pass installerMigrations:[] to install() so the first-time-baseline migration does not remove the stubs before the copy step can run. Root cause: hooks/dist/ is gitignored and absent on a fresh npm ci. ensureHooksDist() created it and teardownHooksDist() deleted it, but with --test-concurrency=4 both test files ran concurrently as separate Node.js worker processes sharing the same filesystem. One file's afterEach teardown deleted hooks/dist/ while the other file's install() was copying from it, producing an ENOENT (reproduced 2/10 runs locally). The additional issue: even with pre-placed stubs surviving the copy race, the 000-first-time-baseline migration classified hooks/gsd-*.js as bundled-gsd-hook artifacts, auto-removed them, and the copy step never re-ran (hooks/dist/ absent) — leaving contextMonitorFile missing and all hook registrations silently skipped (the 'got: []' symptom). Fix: pre-populate targetDir/hooks/ per-test (isolated temp dir) AND pass installerMigrations:[] so the baseline scan is skipped. The Qwen suites already used this pattern correctly; the Claude suites are aligned to it. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#770): ship gsd-config-reload.js by adding it to build-hooks HOOKS_TO_COPY The #770 feature added hooks/gsd-config-reload.js and registered it in MANAGED_HOOKS, the installer, INVENTORY, and the test EXPECTED_ALL_HOOKS list — but never added it to scripts/build-hooks.js HOOKS_TO_COPY. As a result the hook was never copied into hooks/dist/ during the build, so: - the hook would never ship to users (real production bug — the FileChanged config-reload feature was dead-on-arrival), and - install-minimal-hooks.test.cjs #1755 ("all expected hooks are copied from hooks/dist/ to target", ".js hooks are executable after copy", "manifest contains .js hook entries") failed on any environment with a clean checkout (no pre-existing hooks/dist/): coverage, full test macos-22/macos-24, test ubuntu-24. The failures were masked locally only by a stale hooks/dist/ left from a prior build (build-hooks copies into dist without clearing it). On CI's fresh `npm ci` there is no dist, so the omission surfaced. Fix: add 'gsd-config-reload.js' to HOOKS_TO_COPY so build-hooks stages it into hooks/dist/ alongside the other JS hooks. Verified by removing hooks/dist/ and rerunning the full suite green (0 fail). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#770): make config prototype-pollution beforeEach deterministic on scoped runner Root cause: the #663 and alert-#26 prototype-pollution describe blocks seeded .planning/config.json in beforeEach via a bare runGsdTools('config-ensure-section') whose result was discarded. That command runs in a spawned gsd-tools child; on the scoped CI lane (--test-concurrency=4, config.test.cjs scheduled alongside the heavy install/tarball suites that #770 pulled into the targeted set) the child can be transiently killed under resource pressure (non-zero exit, empty stderr — an OS-level kill, not an app error). The swallowed failure left config.json absent, so the first subtest's readConfig() threw ENOENT opening <tmp>/.planning/config.json. Only 1 of 4 subtests failed, confirming a per-invocation transient, not a deterministic miss; the full suite schedules files differently so config.test.cjs did not collide with those heavy neighbors → passed there. Fix: add ensureConfigReady(tmpDir) which retries config-ensure-section on ANY failure or missing file and throws a clear diagnostic if it still cannot create config.json, then use it in both prototype-pollution beforeEach blocks. Setup is now deterministic under load; the #663/alert-#26 security assertions are unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
GSD Core documentation
Documentation is organised into four quadrants: tutorials help you learn by doing, how-to guides solve specific tasks, reference states authoritative facts, and explanation explores concepts and design decisions.
Language versions: English · Português (pt-BR) · 日本語 · 简体中文
Tutorials
- Your first project — install to first shipped phase, one guaranteed path
- Onboarding an existing codebase — bring GSD Core to a brownfield repo
How-to guides
- Install on your runtime — runtime-specific install steps for all 15 supported runtimes
- Install a minimal GSD and add skills later — install only the core skills, then grow the surface with profiles and
/gsd:surface - Discuss a phase — capture implementation decisions before planning begins
- Plan a phase — run research, decompose work, and verify plan quality
- Execute a phase — run plans in parallel waves with fresh-context subagents
- Verify and ship — walk through completed work, diagnose failures, and create the PR
- Run phases autonomously — use autonomous mode for unattended phase execution
- Handle quick and fast tasks — use
/gsd-quickand/gsd-fastfor ad-hoc work outside the phase loop - Configure model profiles — switch between quality, balanced, and budget model tiers
- Set up cross-AI review — configure a second AI to review code produced by the primary agent
- Work in parallel with workstreams — run independent lines of work simultaneously using workstreams
- Isolate work with workspaces — use workspaces to sandbox experimental or risky changes
- Debug a failed execution — diagnose and recover from broken or incomplete phase execution
- Spike and sketch — use
/gsd-spikeand/gsd-sketchfor exploratory work before committing to a plan - Design a UI phase — use the UI phase loop for frontend and visual work
- Drive GSD from a tracker issue — start a phase from a GitHub, Linear, or Jira issue
- Migrate from GSD 2 — upgrade an existing GSD 2 project to GSD Core
- Update GSD — re-run the installer to pick up the latest release
- Clean up get-shit-done-cc — remove leftover old-package artifacts that cause a spurious
⬆ /gsd:updateindicator after migrating to@opengsd/gsd-core - Fix the worktree base-mismatch (exit 42) error — resolve the branch-divergence condition that halts parallel phase execution
- Recover and troubleshoot — fix common problems, rebuild context, and uninstall
Reference
- Commands — every command with flags and examples
- Configuration — full config schema, model profiles, git branching strategies
- CLI tools —
gsd-tools.cjsprogrammatic API for workflows and agents - Features — complete feature index
- Inventory — installed skills and surface map
- STATE.md schema — field-by-field reference for
.planning/STATE.md - CONTEXT.md schema — field-by-field reference for
.planning/phases/<N>/CONTEXT.md - PLAN.md schema — field-by-field reference for
.planning/phases/<N>/PLAN.md - Planning artifacts — all
.planning/files and their roles
Explanation
- Context engineering — how context rot forms and how GSD Core prevents it
- The phase loop — design rationale for the Discuss → Plan → Execute → Verify → Ship cycle
- Multi-agent orchestration — how subagents are spawned, scoped, and coordinated
- Security model — trust boundaries, permissions, and safe automation
- Architecture — system architecture, agent model, and data flow
- Discuss modes — assumptions mode vs interview mode for
/gsd-discuss-phase - Context monitoring — context window monitoring hook architecture
- Issue-driven orchestration — recipe for driving GSD from a tracker issue using existing primitives
Related
- Root README — landing page, quickstart, and documentation overview
- Changelog — release history