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* test(#3185): failing-first phase-enumeration single-owner suite Covers the enumeration rows with direct code evidence: 999.* backlog dirs listed by progress/stats, the phase-0 sentinel divergence, the #1324 letter-prefixed-decimal negative space, and the destructive-path find — cmdPhasesClear carries a fifth sentinel copy (/^999(?:\.|$)/) that excludes 999 but not 0, so a 0-* directory roadmap.analyze preserves is deleted there. Also covers the pass-all degrade, which is where the defect actually lives: when the milestone window declares no phases the filter becomes a literal () => true and its heading-side sentinel exclusion is unreachable. A fixture carrying phase headings keeps the filter active and never reaches that path. Named for the derivation, not a module: the suite drives commands, phase, milestone, workstream-inventory and state, and both the phase and phase-locator buckets are already at the per-module test-file cap. Committed alone so the remote runner records the failure before the fix. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * refactor(#3185): phase enumeration has one owner and a decidable scope Adds phase-locator.cts::listMilestonePhaseDirs as the single canonical owner of "which phase directories belong to the current milestone". It applies the milestone window AND the sentinel filter and returns a ScopedResult, so a caller can tell a genuinely-empty milestone from an enumeration that could not be scoped. The sentinel test now runs against DIRECTORY NAMES and is unconditional. getMilestonePhaseFilter excludes sentinels from its ROADMAP heading set, but degrades to a literal () => true pass-all predicate when that set is empty -- at which point the heading set is never consulted and its sentinel exclusion is unreachable exactly when it is needed. That degrade is the #3167 path, and it is why stats already used the filter and still listed backlog directories. The narrowing is sentinel-only: pass-all stays over-inclusive otherwise. Sentinel copies deleted, canonical isSentinelPhaseId adopted: - cmdRoadmapAnalyze's local closure (parseInt === 0 || === 999), 2 call sites - cmdPhasesClear's /^999(?:\.|$)/ -- the DESTRUCTIVE path, which excluded 999 but not 0, so a 0-* directory roadmap.analyze preserves was deleted cmdStats also seeded rows from ROADMAP headings with no sentinel filter, so a 999 heading produced a row with no directory; that seed is filtered now. cmdPhasesList routes only its ENUMERATION. --phase lookup searches the physical set (scoping it would report an out-of-window phase as not found) and --include-archived still merges archived dirs (they are by definition from other milestones). Both exempt by documented reason, never a file allowlist. Fixed inline, found while building: isDirInMilestone could not match a #1324 letter-prefixed-decimal directory (P0.0-foundation) to its own Phase P0.0 heading, so stats reported the phase with plans: 0 while its directory held plan files. Defers to phase-id's extractPhaseToken rather than widening a fourth bespoke regex; additive, so it can only admit directories. Refs #3180. Closes #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * refactor(#3185): route the last two enumeration re-derivations workstream-inventory countRoadmapPhases counted every `Phase` heading across the whole ROADMAP -- no window, no sentinel filter -- so it counted 999.* backlog and Phase 0 and spanned every milestone the document ever had. Its own caller already resolved a currentVersion and passed it to getMilestonePhaseFilter elsewhere in the same file; this was the sibling copy that never got the fix. state.cts phaseInventoryProvider enumerated phase dirs with its own /^(\d+)-(.+)$/ convention regex and neither filter, so a rebuilt STATE.md inventory carried backlog and sentinel directories as current-milestone phases. A non-COMPLETE enumeration scope now throws to the outer catch as a real scan failure rather than reporting a confident undercount, mirroring the per-phase scanPhasePlans contract beside it. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * refactor(#3185): consolidate 23 sentinel re-derivations onto one predicate The whole-repo drift guard (ADR-3180 Decision 4a, no file allowlist) found the sentinel rule re-implemented 23 times across 8 modules, in three regex variants plus four integer-comparison forms. Most tested 999 only, so Phase 0 slipped through them while roadmap.analyze and the engine-wide convention (#1580) both treat 0 and 999 alike. That disagreement is the defect class this epic removes. All 23 now call phase-id's isSentinelPhaseId (SENTINEL_RANGES [0,999]). Sites: init recommended-actions and backlog counts, milestone phase scan, the phase-lifecycle progress table, phase.cts used-number collection and the four renumber-on-remove guards, roadmap-parser's heading and bullet milestone counts, roadmap get-phase fallbacks, and state's heading denominator. Excluding Phase 0 at these sites is a deliberate behavior change and the point of the consolidation — several carried comments already saying 0 should be excluded while the literal beside them caught only 999. Adds scripts/lint-phase-enumeration-drift.cjs, wired into lint:ci. It scans the whole src/ tree with no file allowlist and reports both shapes: an independent phases-dir enumeration, and an independent sentinel literal. Exemptions are function-scoped with a written reason. The guard is comment-aware — its first pass flagged JSDoc and a comment documenting that the code below uses the canonical owner, which would have trained readers to exempt prose. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * refactor(#3185): resolve every phases-dir enumeration; drift guard reports zero Per-site triage of the 31 remaining whole-repo guard hits, applying the rule generalized from #3183's Amendment 1: a LOOKUP, DIAGNOSTIC, ARCHIVAL or MUTATION pass wants the physical set; only "which phases belong to this milestone" wants the scoped set. Routed (10): init new-milestone phase_dir_count, init milestone-op fallback count, init manager, init progress, milestone complete stats/dry-run/archive move, phase complete's next-phase scan, state update-progress, state frontmatter stats, and uat audit's active set. Exempt with a written function-scoped reason (never a file allowlist): the audit/UAT/verification sweeps that deliberately scan every directory to report gaps, phase create/insert/rename/renumber mutations, single-phase lookups, roadmap-upgrade's cross-milestone migration, cmdPhasesClear's whole-tree destructive pass, and the reads that list a phase dir's FILES rather than enumerating the phases dir at all. Latent defects fixed by the routing: sentinel directories leaked into cmdInitNewMilestone's phase_dir_count, cmdMilestoneComplete's stats, dry-run AND ARCHIVE MOVE, cmdStateUpdateProgress, buildStateFrontmatter and cmdAuditUat's active set — every one of those hand-rolled an isDirInMilestone filter with no sentinel exclusion, so `milestone complete` was archiving backlog directories. scripts/lint-phase-enumeration-drift.cjs now reports 0 re-derivations and npm run lint:ci is green. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * docs(#3185): document milestone-scoped enumeration and record ADR Amendment 3 Changeset fragment (Changed), CLI-TOOLS/COMMANDS/USER-GUIDE updates for the scoped output of progress, stats, phases list, phases clear and milestone complete, the CONTEXT.md Phase Locator glossary entry naming listMilestonePhaseDirs, and ADR-3180 Amendment 3. Amendment 3 records: the SCOPE contract held unchanged; the declared deviation from Decision 1's provisional signature (the window needs cwd/ws, which the locked roadmapContent parameter cannot supply); the copy count being a lower bound for the third consecutive phase (4 scoped vs 54 found); the load-bearing finding that the sentinel exclusion sat on the heading set and was unreachable under the pass-all degrade; the two destructive-path defects; and the generalized exemption rule. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * fix(#3185): wire scope to consumers; revert two wrong routings the suite caught Review + remote runner findings, all fixed: The three consumers computed the enumeration scope and threw it away, so TRUNCATED/UNSCOPED/UNREADABLE collapsed into the same output as COMPLETE -- reproducing this epic's own output-identical-failure defect one layer up. progress, stats and phases list now emit phase_scope (null on the phases list --phase lookup path, which performs no enumeration). Two routings were wrong and the suite proved it: roadmap-parser's two milestone phase-count scans are reverted to the 999-only literal. isSentinelPhaseId is BROADER than what it replaced: its legacy branch runs /^0*(\d+)/ over "00.1", which backtracks to capture 0, so it read #2554's decimal phase ids as sentinel milestone 0 and stopped counting them. state.cts phaseInventoryProvider is reverted to the physical disk scan. `state rebuild` is a RECONCILIATION pass -- scoping it made it throw on healthy trees whose fixture resolves no window, swallowed the raw readdirSync fault message #3057 B1 requires verbatim, and stopped it dropping orphan STATE.md rows, which is the job. Both are now function-scoped guard exemptions with written reasons, not silent reverts. This is the consolidation trap named in the epic: a canonical rule can cover MORE than the copy it replaces, and only real inputs show it. Adds phases list coverage, a scope-branch test, and a drift-guard unit suite; backports comment-awareness to the milestone-window and plan-count guards so all three siblings share one false-positive profile; names #3161 alongside #3167 in Amendment 3's subsumption record. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * fix(#3185): correct isSentinelPhaseId's decimal-zero misclassification An isolated security review caught this branch committing the epic's own sin: the over-broad predicate was worked around at ONE call site and left live at the destructive ones. isSentinelPhaseId's legacy branch ran /^0*(\d+)/, which backtracks so any id whose leading digit run is all zeros before a non-digit captures 0 -- "0.1", "00.1" and "0.2554" all read as sentinel milestone 0. Two pinned contracts disagree with that: #2554 requires "00.1" to be counted as a real phase, and the 999 icebox is a whole reserved milestone so "999.1" must stay sentinel. The rule is asymmetric and now says so explicitly: 999 is sentinel with or without a decimal part; 0 is sentinel only when bare. A decimal phase under either is a real phase for 0 and reserved for 999, because 999 reserves a MILESTONE while 0 reserves a PHASE. Fixing the owner lets the earlier workaround go: getMilestonePhaseFilter's two scans route through isSentinelPhaseId again and the guard exemption that existed only to accommodate the defect is deleted. The state.cts cmdStateRebuild exemption stays -- that one is a genuine reconciliation-wants-the-physical-set case. Also corrects tests/adr-612-bracket-grammar.test.cjs, which asserted isSentinelPhaseId('0.1') === true and so had encoded the defect as expected behavior. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * fix(#3185): keep isSentinelPhaseId's semantics — 0.x is layered, not wrong Reverts the previous commit. The remote suite failed six tests proving it wrong, and the reason is the sharpest finding of this phase. An isolated security review observed that isSentinelPhaseId reads 0.1 and 00.1 as sentinel milestone 0 and judged that a defect against #2554. Correcting the canonical predicate broke #2949. Both contracts are pinned and both are right, because they ask different questions: #2554 is this dir part of the current milestone's phase SET? -> count 00.1 #2949 must this phase COMPLETE before the milestone closes? -> 0.x sentinel No single global predicate answers both. isSentinelPhaseId keeps its semantics (0.x IS a sentinel, #2949), and the milestone-window layer keeps a narrower 999-only rule (#2554) as a function-scoped guard exemption with a written reason — not a second silent copy. That corrects how Decision 1 reads: "one owner per derivation" governs who computes an answer, not how many questions share it. An over-broad canonical rule is as much a defect as a divergent copy and fails worse, because it looks like consolidation. Recorded in Amendment 3 as the lesson for Phases 4 and 5. Where a review's inference about intent conflicts with a pinned contract, the pinned contract wins; the finding is adjudicated, not fixed. The boundary tables in the enumeration suite are corrected to assert 0.x IS a sentinel, with the layering explained. Refs #3180 #3185. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG * chore(#3185): set changeset fragment pr to 3222 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QELmgcSwcNBgbUs3kzJeqG --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 (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
- 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