1b6bd66f2c
* 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
Git. Ship. Done.
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A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
What is GSD Core
GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Gemini CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.
How it works
Each milestone repeats the same five-step loop, one phase at a time:
- Discuss — capture implementation decisions before anything is planned
- Plan — research, decompose, and verify the plan fits a fresh context window
- Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
- Verify — walk through what was built; diagnose and fix before declaring done
- Ship — create the PR, archive the phase, repeat for the next one
Quickstart
npx @opengsd/gsd-core@latest
The installer prompts for your runtime (Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.
On another runtime or without Node.js? See Install on your runtime.
Once installed, start your first project:
/gsd-new-project
New here? Follow Your first project for a guided walkthrough from install to first shipped phase.
Documentation
Tutorials — learning by doing:
How-to guides — task-focused recipes:
Reference — authoritative facts:
Explanation — concepts and design decisions:
Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.
Why it works
Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.
Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.
Community
| Project | Platform |
|---|---|
| gsd-opencode | Original OpenCode port |
| Discord | Community support |
Star History
License
MIT License. See LICENSE for details.
Claude Code is powerful. GSD Core makes it reliable.