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* feat(#1681): ADR-1239 Phase C-2 — gsd-mcp-server bin entry + lifecycle test [slice 3b] Phase 4 slice 3b (closes #1681). The companion MCP server bin entry so any MCP-consuming host connects via 'npx gsd-mcp-server' (or its bin on PATH) and gets GSD command (point 1) + state IO (point 5) with no bespoke plugin. - gsd-core/bin/gsd-mcp-server.cjs: #!/usr/bin/env node shim requiring ./lib/mcp-server.cjs + runServer({stdin, stdout}); non-zero exit on fatal error (justified n/no-process-exit disable). Mirrors gsd-tools.cjs. - package.json: add 'gsd-mcp-server' bin entry. - tests/gsd-mcp-server-bin.test.cjs: 3 process-lifecycle tests — initialize + tools/list round-trip + clean exit, malformed-line -> parse error + server keeps running, empty stdin -> clean exit. Synchronous spawnSync (bounded; server exits on stdin EOF, no orphan). Phase 4 trust-gate (#1806) + loader wiring (#1808) + server module (#1809) + this bin/lifecycle slice = all of #1681's deliverables. Concrete host binding -> Phase 5 (#1682). npm-integrity + eslint + security + inventory all clean. * docs(#1681)+chore(changeset): how-to for the companion MCP server + Added fragment docs/how-to/connect-gsd-mcp-server.md — Diataxis how-to guide for connecting any MCP-capable host to gsd-mcp-server: goal-oriented flow (add config → restart → verify), real-world per-host conditionals, troubleshooting, and a trimmed reference table. Explanation/reference linked out (ADR-1239, capability-trust- model) per Diataxis boundary rules rather than mixed in. .changeset/humble-seals-rest.md — type: Added (first user-reachable surface of the epic: a new bin command). The how-to doc satisfies the docs-required gate. * fix(#1681): move gsd-mcp-server shim to top-level bin/ (out of the runtime-copied tree) The shim at gsd-core/bin/gsd-mcp-server.cjs was inside the tree the installer copies into every runtime config dir, so it leaked into all 16 runtimes and broke golden-install-parity. The MCP server is a PACKAGE bin the host spawns (npx gsd-mcp-server), not a per-runtime artifact — so it belongs at top-level bin/ alongside install.js (which is also never copied into a runtime config). - gsd-core/bin/gsd-mcp-server.cjs -> bin/gsd-mcp-server.js (require path now ../gsd-core/bin/lib/mcp-server.cjs). - package.json: bin entry -> bin/gsd-mcp-server.js. - tests/gsd-mcp-server-bin.test.cjs: SHIM path updated. - eslint.config.mjs: add bin/gsd-mcp-server.js to the bin/install.js block (drops the n/no-process-exit disable — the n plugin isn't loaded for that block, so the disable referenced an undefined rule). golden-install-parity 16/16 restored; lifecycle + unit tests green; eslint 0; lint:ci all ok.
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-closed gates
- 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