* enhance(#2872): record scope and runtime in the install manifest gsd-file-manifest.json gains manifestVersion, runtime and scope, and a new read-only Installed Surface Resolver Module reads both install scopes for a runtime in one call -- the first code path in the repo that does. Phase 3 of epic #2866 (ADR-2866). Blocks Phase 4 (#2873), which resolves #2218: the resolver's shadowedBy field is that defect expressed as a value for the first time. It ships computed-and-unread here. Installed-ness is decided by manifest PRESENCE, never by the new fields, so a manifest written by an older GSD stays fully functional and no user needs to reinstall. Recorded runtime/scope are corroboration: a disagreement with the probed config dir is reported as declaredScopeMatchesProbe: false, never silently corrected. readInstallManifest is widened additively -- version/timestamp/mode/files keep their exact names, types and meanings for all four existing callers. manifestVersion is a new field rather than a reinterpretation of version, which holds the package version and is read by the golden-parity fixtures. Stems are derived from the installed manifest's own file keys, the inverse of Phase 2's filename composition, guarded by a fast-check round-trip property plus a kebab-case charset check so a crafted manifest key cannot put a traversal segment, control character or ANSI escape into a trigger that Phase 4 renders back to the user. Also fixes two defects found while working: - bin/install.js hardcoded manifestVersion: 2 while the reader owned MANIFEST_SCHEMA_VERSION = 2. Now single-sourced, with a parity test. - docs/installer-migrations.md documented an install-state schema of five snake_case fields that have never been written; InstallState has only ever been { schemaVersion, appliedMigrations }. Corrected with a dated note. Verification runs on the remote runner. * fix(#2872): fold review findings from three independent engines Standards axis: - convert the manifest-schema suite from a hybrid setup(t) closure to beforeEach/afterEach (CONTRIBUTING.md:319-354 Pattern 1). The hybrid was neither approved pattern and a new test forgetting the call got no warning. - SCOPE_ORDER was declared twice with no parity test -- this repo's recorded generative-fix-divergence class. Give the ordering one owner: install-scope exports it frozen, the layout module and the resolver both import it, and a test locks it against scopeRank so the constant and the ranks cannot drift. - drop the defaultReadManifest passthrough (Middle Man). Spec axis: - add the VOLATILE_FILES exclusion test and source comment the acceptance table promised and did not deliver. gsd-file-manifest.json stays excluded: the new fields are deterministic, but timestamp -- the original reason -- is unchanged. Security axis: - bound the reported manifest runtime at 64 chars, matching the truncatePostureValue convention already used in this subsystem. It reached declaredRuntime unbounded while the adjacent stems were gated by SAFE_STEM; an inconsistent posture on the same attacker-influenceable document. The charset stays ungated on purpose -- declaredRuntimeMatchesProbe needs to see the real value -- so Phase 4 must sanitize before rendering, recorded in the design's Known limits. Both new parity tests were verified to FAIL when the two sides are made to disagree, then pass again on revert. Verification runs on the remote runner. * chore(#2872): backfill changeset pr number to 3323 * fix(#2872): give git fixture construction its own timeout class PR #3323's full test (windows-latest, 22, shard 2/3) failed with gitOrThrow: 'git init' failed -- outcome=timed_out exitCode=null gitOrThrow: 'git commit --allow-empty' failed -- outcome=timed_out from drift-detection.test.cjs's beforeEach, a file this branch never touched. Every other lane passed the same commit, including windows-latest node 24 on all three shards, and next is green. Root cause is a bound sized for the wrong class. DEFAULT_GIT_TIMEOUT_MS is 15000 and its own comment scopes it to plumbing READS -- rev-parse, branch, log -- against an existing repo. createFixture uses it for six sequential repo-CONSTRUCTION spawns: init, three config writes, add -A, commit. init and commit each write dozens of files, and on Windows every spawn is Defender-scanned. Sibling tests in the failing block took 15.6-22.0s against a 15000ms bound. This repo already diagnosed this exact shape once: timeouts.cjs's HOOK_FANOUT_TIMEOUT_MS records PR #3285 failing in the SAME job with the SAME outcome=timed_out exitCode=null signature at the SAME bound while every other lane passed, and concludes 'a bound sized for the wrong class, not a slow machine'. It was fixed by splitting out a heavier class-norm at 60000. Same remedy here: GIT_FIXTURE_TIMEOUT_MS = 60000, 4x the bound that failed and half INSTALL_TIMEOUT_MS. DEFAULT_GIT_TIMEOUT_MS deliberately stays at 15000 -- a blanket raise would stop a genuinely hung plumbing read from surfacing fast. Verified the value reaches the spawn rather than being an ignored option: spawnSync was monkeypatched before requiring the fixture module, and all six git construction calls were captured carrying timeout: 60000. This branch's two new test files shift shard composition, which is how a pre-existing fragility landed in the heaviest shard on the slowest lane. Fixed here rather than deferred, per the no-defer rule. Verification runs on the remote runner. --------- Co-authored-by: sim <sim@local>
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
- Build your first capability — author a tiny declarative capability and watch it act in the loop
- Install your first capability — install a third-party capability end-to-end: consent, verify, check for updates, remove
How-to guides
- Install on your runtime — runtime-specific install steps for all 16 supported runtimes
- Install a minimal GSD and add skills later — install only the core skills, then grow the surface with profiles and
/gsd-surface - Attach a plugin-provided skill to a GSD agent — use the
global:plugin:skillentry form to load Claude Code plugin skills into agent prompts - Discuss a phase — capture implementation decisions before planning begins
- Resolve edge-coverage findings — turn the spec phase's surfaced domain-boundary edges into covered, dismissed, or backstopped spec decisions
- Resolve prohibition findings — turn the spec phase's surfaced must-NOT constraints into resolved, dismissed, or deferred spec decisions
- Resolve an ESLint glob-coverage finding — bring a source file that matches no lint rule under coverage, or record a reasoned exemption
- 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
- Catch complexity before it compounds — enable the post-execute refactor hook, read a proposal's score vs. anchor delta, and accept or decline it
- 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
- Control which host runtime GSD reports — read the
agent_runtimeladder, understand what host detection looks at, and pin the runtime when detection is not what you want - 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
- Interpret scope-conformance warnings — read the advisory the worktree-wave merge emits when a plan branch commits outside its declared scope
- Interpret
state validateresults — read thescopereason codes and tell "nothing to report" apart from "could not look" - 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
- Develop a Capability for GSD 1.5+ — add feature Capabilities, hook fragments, and registry entries
- Ship a reviewer lane in your capability — declare a
reviewerbody so/gsd-reviewdiscovers, invokes, and renders your external review CLI or model endpoint - List your reviewer lane in the registry — publish a lane you have built to the Reviewer Lane Registry so other people can find and install it
- Take over a capability or EoS integration — assume maintainership of an existing third-party capability, reviewer lane, or EoS host integration through a handoff, an adoption fork, first-party absorption, or a de-listing
- Add or update a host's integration — set a host's documentation-sourced
runtime.hostIntegrationaxes (ADR-1239 Phase A), with theundocumentedsentinel rule - Turn a capability off (and keep it off) — disable a capability via the surface, or gate individual hooks off without removing the capability
- 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 - JSON error mode —
gsd-toolsfailure channels: faults (stderr, exit 1) vs degraded results (stdout, exit 0), and the reason-code taxonomy - 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 - Review and verification capabilities — code review, security, and Nyquist capability ownership and hook contracts
- Gate predicates — canonical specification of the phase-gate predicate vocabulary
- Capability matrix — generated catalogue of every capability's role, tier, extension points, hook kinds, and
engines.gsd - Capability manifest — the full
capability.jsonschema and validation rules gsd capabilitycommand — install / update / remove / list reference for third-party capabilities- Workflow fragments — in-file
<!-- gsd:section -->marker grammar for fragmentizing workflow markdown at emission time - Reviewer Lane Registry — generated catalogue of third-party reviewer lanes, with their flags, transport, and install commands
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
- The capability trust model — why third-party capabilities are gated by consent + integrity + reversibility, not a sandbox
- How overlay capabilities compose — why first-party always wins and how the loader resolves precedence, conflicts, and fail-open load-failure warnings
- Architecture — system architecture, agent model, and data flow
- The Embeddable Orchestration System — one public, versioned contract for embedding GSD across many hosts
- 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
- What's new in 1.7.0 — curated highlights of the 1.7.0 release
- Root README — landing page, quickstart, and documentation overview
- Changelog — release history