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* fix(#2308): make new-milestone workstream-aware; stop clobbering shared PROJECT.md Step 4 rewrote the `## Current Milestone` heading in the shared root PROJECT.md unconditionally. references/workstream-flag.md marks PROJECT.md `# Shared`, and per-workstream milestone state already lives in the workstream's own STATE.md / ROADMAP.md / REQUIREMENTS.md. With parallel milestones — the sanctioned design — whichever workstream ran new-milestone last silently won the shared heading. Step 4 is now skipped when a workstream is active; step 6 no longer stages PROJECT.md in that mode (cmdCommit returns nothing_to_commit rather than failing when a staged path is unchanged). Also fixes a second defect found while diagnosing this, same root cause (the workflow was workstream-unaware): step 1 parsed only --reset-phase-numbers and the milestone name, so GSD_WS was never set — yet ${GSD_WS} was interpolated at the routing lines. It always expanded to empty, so `/gsd:new-milestone --ws x` suggested `/gsd:discuss-phase [N]` with the workstream scope silently dropped, violating the routing-propagation contract. Step 1 now parses --ws using the established idiom from verify-work.md. Guard is keyed on GSD_WS, not $GSD_WORKSTREAM: the runtime launcher does not export the latter and it is only priority 2 of 5 in resolution, so it would miss the --ws flag case that is the actual repro. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * test(#2308): regenerate install goldens for the new-milestone workflow change gsd-core/workflows/ ships as an installed artifact, so new-milestone.md's content hash is pinned in all 18 runtime golden fixtures. Only that hash changed. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * fix(#2308): address review — inert step-6 guard, dropped Evolution repair, tautological tests Independent review found the first pass was partly cosmetic: 1. The step-6 `if [ -n "$GSD_WS" ]` branch was INERT. GSD_WS is assigned in step 1's shell and each step's bash block runs in its own shell — this file already proves it, since step 5 round-trips OUTGOING_MILESTONE through a file for exactly that reason (#2288). The guard read an unset variable, always took the flat branch, and staged PROJECT.md anyway. Rather than re-deriving GSD_WS in step 6, the branch is removed entirely: step 4 Part A's guard is what protects the shared heading, so post-guard the only content PROJECT.md can carry is Part B's idempotent Evolution backfill — which must be staged, not stranded. A regression test now asserts no cross-step GSD_WS branch returns. 2. Skipping ALL of step 4 also dropped the `## Evolution` structural repair — a shared, idempotent backfill that is not workstream state. A pre-Evolution project running only `--ws` would never get the section that transition and complete-milestone expect. Step 4 is now split: Part A (milestone-state write) is workstream-guarded; Part B (Evolution) always runs. 3. The tests were tautological prose-pinning — including one asserting a comment mentions "#2308". The step-6 test asserted the guard's TEXT was present, so it passed on the inert guard it existed to catch. Replaced with executable tests that extract the step-1 and step-6 fences and run them under bash with stubbed gsd_run, asserting real parse and --files behavior. 4. --ws is now stripped from the milestone name (step 1 previously left "--ws search" in the remaining text), and documented in argument-hint, help/modes/full.md, and docs/COMMANDS.md. 5. Changeset no longer overstates: --ws reaches the prose guard and routing hints only, not the SDK calls (state.milestone-switch/phases.clear/init.new-milestone still take no ${GSD_WS} — out of scope here). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * chore(#2308): regenerate SKILL.md, goldens, and size baseline for the argument-hint change skills/gsd-new-milestone/SKILL.md is generated from commands/gsd/new-milestone.md, so documenting --ws in the argument-hint made it stale (caught by lint:ci's gen-plugin-skills --check). Regenerated it plus the install goldens and workflow size baseline, since commands/, skills/, and gsd-core/workflows/ all ship. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2308): backfill PR number 2338 into changeset Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA --------- Co-authored-by: Claude Opus 4.8 (1M context) <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
- 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