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* fix(#2810): accept the documented effortSurface axis on EoS registry entries The EoS registry schema required an exact eight-key `interactions.axes` object, while `docs/registries/README.md` and `CONTEXT.md` both documented nine keys including `effortSurface`. An entry that faithfully mirrored its upstream descriptor's `effortSurface` key was rejected outright. `effortSurface` reached the runtime-descriptor vocabulary through ADR-1239 amendment #2481 (`HOST_INTEGRATION_AXES`), but the registry's hand-maintained copy of that vocabulary never picked it up. The runtime-descriptor surface is guarded by tests/host-integration-validator-parity.test.cjs; the registry copy had no equivalent guard, which is what let the two drift. Accept `effortSurface` as an OPTIONAL ninth axis validated against the canonical ['argv','none'] rather than a required one: registry entries mirror their upstream registry/eos-entry.json byte-for-byte, so requiring it would retroactively invalidate every entry published before the amendment. Adds tests/registry-axes-parity.test.cjs, which asserts that every key shared between the registry vocabulary and HOST_INTEGRATION_AXES has an identical enum array, plus limit-1/limit/limit+1 boundary coverage on the axes key set. Closes #2810 * test(#2810): fail when a canonical axis is added but never mirrored The enum-equality assertion compares only keys the registry and HOST_INTEGRATION_AXES already share, so it is blind to the exact drift that produced #2810: a new canonical axis appears and the registry copy is never told. Verified by simulation — mutating an enum is caught, adding a new canonical key is not. Assert instead that every HOST_INTEGRATION_AXES key is either modeled by the registry or named in an explicit NOT_MODELLED allowlist (subagentToolkit and isolation, both dispatch sub-fields the registry collapses into its free-form dispatch summary). Adding a canonical axis now fails until someone decides which bucket it belongs in. The allowlist is itself guarded against going stale. Refs #2810 * fix(#2810): harden the axis value lookup with the CodeQL barrier pattern Both orthogonal reviews flagged the same line: `AXES[key] !== undefined` is not an own-property test, and the bracket reads are shaped like a prototype-pollution sink even though the unknown-key gate above provably makes them unreachable. Switch the presence test to `Object.hasOwn` and add the repo's inline literal guards (`capability-state.cts:146-155`, "Prototype-pollution guard (inline literal, CodeQL barrier)"), which CodeQL can follow where it cannot follow the `.includes()` filter that actually does the work. Behavior is unchanged — re-verified all five axes key-count shapes plus a genuine own `__proto__` property built through JSON.parse (the shape a third-party registry PR would submit): it is rejected as an unknown key and Object.prototype is untouched. Refs #2810 * chore(#2810): backfill changeset PR number
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
- 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
- Develop a Capability for GSD 1.5+ — add feature Capabilities, hook fragments, and registry entries
- 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 - 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
- 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
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