* test(#1854): failing-first coverage for user-files-backup restore Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * feat(#1854): offer restore for user-added files backed up on update Adds a restore-custom-files gsd-tools verb and wires it into update.md as a restore_custom_files step: plan, compatibility-check against the newly installed release, then restore only on explicit opt-in. The backup is never deleted, a shipped path is never overwritten, and a single unwritable entry does not abort the rest. Also drops the jq pipe from update-context field extraction (#2589 class, missed by that sweep) and repairs a broken code fence in docs/CLI-TOOLS.md. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#1854): reject symlinked restore destinations and backup roots Self-review of the restore path found two write-through holes: copyFileSync follows a symlinked destination, so a link planted at the restore target wrote outside the config dir with every ancestor still a real directory; and statSync on the backup root followed a link, letting the walk read arbitrary files and present them as the user's own backup. Both now lstat. Also marks the report's path/detail strings as untrusted data in update.md so the rendered step cannot carry instructions into the runtime model. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#1854): move the update-context jq guard into the #2589 sweep update.md joins the AUDITED list rather than carrying a duplicate assertion in the backup-restore suite, and the guard gains a negative-proof companion so 'no jq pipe' cannot pass by the fields simply no longer being read. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#1854): validate manifest files map shape before trusting it Security review flagged that Object.keys on a non-plain-object files field yields numeric-index keys matching nothing, so the managed-path check dies silently while manifest_found still reports true. Shape, not just type (ADR-227): an array or scalar files map is now an unusable manifest. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#1854): size the restore prompt by eligible_count Spec review found the prompt was driven by entries.length, so a backup holding only blocked entries asked "Restore 1 file(s)?" when accepting would restore zero. The question now reads eligible_count, and an all-blocked backup reports its reasons instead of offering a choice that cannot be honored. The decline path names the resolved backup_dir rather than the bare directory name. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#1854): use t.skip on hosts without symlink support A bare return in a node:test body registers as a PASS, so the four symlink guards silently reported green on unprivileged Windows instead of skipping. Adds the dangling-link destination case the security review called out, and moves outside-dir teardown to t.after so a failing assert cannot leak it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#1854): unfence restore hint, regen goldens, widen install timeout Three gate failures from the c99d612a5 run, all root-caused: 1. capability-registry (3): update.md's decline message put an instructional 'gsd-tools ...' line in an UNTAGGED fence, and the guard treats untagged fences as shell blocks. Retagged both display blocks as text and switched the hint to the resolved 'node <config-dir>/.../gsd-tools.cjs' form users can actually paste. 2. golden-install-parity (19): update.md and gsd-tools.cjs ship, so every runtime fixture moved. Regenerated; the diff is exactly those two hashes per fixture, no other drift. 3. install.test.cjs (5): one real failure, four cascades. The Cursor suite's before hook died on 'spawnSync ETIMEDOUT' at the 60s cap while the node22 lane passed the SAME commit in 12.7s. A full install measures 13-30s idle, so 60s was under 2x headroom and shrinks with every file added to the payload. Raised to 120s, matching the heavy case already in this file. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#1854): backfill changeset pr number to 2679 --------- 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
- 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