9f57fa43ed
* docs(#3240): record the codex passive/session-only model posture ADR-2313 locks the install-time contract for epic #2313: omit the per-agent model from generated ~/.codex/agents/<agent>.toml by default so the agent inherits the always-available Codex session model, embed one only for an explicit real-Codex model_overrides pin, and keep model_reasoning_effort coupled to a pinned model (#838). Supersedes #2517's per-tier embedding on the default path only. Also records the reader/writer boundary the downstream phases need (strict writer, liberal-but-visible readers, never partially rewrite an unparseable .toml), the migration path for API-key Codex users, and the Phase 5 the coverage gate found unowned. Amends ADR-1239 with a dated section: its effortSurface amendment described this ADR as "not yet written", and the install-time vs invocation-time boundary is now stated from both sides. Docs-only. The posture is not real until Phase 1 (#3241) merges. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#3240): remove the ADR index count cells that race between PRs The generated region of docs/adr/README.md carried three numeric cells — a per-group `### <heading> (N)` and a `_N ADRs._` footer — that every ADR-adding PR must rewrite. Two PRs adding different ADRs merge their table rows cleanly, since those are distinct lines, but both rewrite the same count lines, so whichever lands second gets a green local `gen-adr-index.cjs --check` and a red CI one: CI evaluates the PR merged with next, where the count reflects both ADRs. That is not hypothetical. It reddened this PR: ADR-2313 regenerated the index at 75 while #3249 landed ADR-3247 concurrently, making the merged tree 76. The counts carry no verification value — --check regenerates and diffs the whole region regardless — and are derivable by reading the table, so they are removed rather than tolerated. Loosening --check to ignore them would have let genuine staleness through. This is the shared-mutable-cell problem CHANGELOG.md and the drift acks already solved with per-PR fragment files; here removing the cell is enough. The regression test locks the invariant rather than the symptom: adding an ADR only INSERTS lines, so render(N) is a line-subsequence of render(N+1). That is the property that makes concurrent PRs merge, and unlike asserting the absence of one count format it fails for a count reintroduced in any shape. Covered at append, lowest-id, middle-id, empty-corpus, new-status-group, and hazardous-title positions; each names the pre-fix line that would have failed it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 <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
- 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 - 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