a0fafedfa0
VS Code is a net-new EoS runtime that — unlike every prior migration — is NOT CLI-installed (Marketplace/VSIX extension). It has zero runtime==='vscode' branches in bin/install.js and stays that way (regression-guarded); it is driven entirely through the negotiated imperative Host-Integration adapter. Registry + validator (the hard part): - capabilities/vscode/capability.json (role:runtime): full hostIntegration block (imperative / palette / active vscode.lm model / engine hook bus / sandboxed-storage / mcp transport / sandboxed-web runtime; dispatch nested, maxDepth 5 per VS Code's documented subagent depth). - capability-validator.cjs extended so a role:runtime capability can legitimately declare "extension-distributed, no config directory": new configHome.kind:'none' + installSurface:'none' (+ GATE-A pairing + the parity maps), with localConfigDir and configHome.name made conditional on kind!=='none'. All 18 runtimes still validate; getDirName returns a distinct sentinel (not '.claude') for a no-config runtime. - The add-a-registry-runtime tax: NON_INSTALLABLE_RUNTIMES exemption in the runtime-flags drift guard, vscode added to global-config-home SPECIAL_CASED, EXPECTED_PROFILES.vscode='ide', and the config-adapter/derivation/pin-count guards updated. No golden-install fixture, model-catalog, or CONFIGURATION rows (vscode never enters allRuntimes). Dispatch + extension surface: - Fixed vscode/extension.js's createHub()-no-args bug (every dispatch was UnknownCommand, masked by a vacuous reachability test) — now reuses the shared dispatchGsdCommand subprocess-shim (Node/desktop); the reachability test is tightened to assert real dispatch. - Promoted the #1933 host binding to a shipped vscode/host-binding.js; activate() now composes the model/hookBus/stateIO seams through it. Corrected the model seam to VS Code's real API (vscode.lm.selectChatModels() -> model.sendRequest(); vscode.lm.sendRequest does not exist) so the binding actually composes on real desktop VS Code instead of throwing. - New vscode/browser.js Web Extension entry with ZERO Node APIs (the engine's config/capability loading is Node-bound, so the web entry registers the surface and directs full dispatch to the native MCP server — honestly documented). - UPGRADE 1: GSD skills as native Language Model Tools (contributes.languageModelTools + vscode.lm.registerTool), invoke() dispatching through the hub. - UPGRADE 2: native subagent dispatch wired onto #runSubagent / chat.subagents.allowInvocationsFromSubagents (fail-soft on API availability, maxDepth 5 enforced). - vscode/package.json: browser entry, engines.vscode ^1.105, chatParticipants + languageModelTools contributions; fixed a stale activationPoints->activationEvents manifest key. Added "vscode" to the package files array. Docs (## vscode matrix section) + changeset (Added). Co-Authored-By: Claude Opus 4.8 <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
- 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