5e0a7b1b56
* fix(#4433): apply the name-validity guard symmetrically to every milestone-name capture extractMilestoneHeadingName already refused a punctuation-only captured name (#4134), but its two sibling capture sites in getMilestoneInfo — the STATE.md-anchored 🚧-bullet match and the no-STATE.md in-progress 🚧-bullet fallback — skipped straight to a bare truthiness check, so a malformed bullet whose only content past the version was punctuation passed through as a real milestone name. Extracts the existing inline /[\p{L}\p{N}]/u check into a single shared hasNameableContent predicate and applies it at all three capture sites, so the guard is one owner rather than a copy that happened to land at only one of them. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4433): pin the name-validity guard at all three milestone-name capture sites Failing-first coverage for the hasNameableContent extraction: a punctuation-only 🚧-bullet name must not surface as a real milestone name, either on the STATE.md-anchored path or the no-STATE.md in-progress fallback, while a real name (including a digits-only one) still resolves COMPLETE exactly as before. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4569): consolidate decimal-phase-number allocation into one function cmdPhaseInsert allocated its next decimal sub-phase number by scanning only on-disk phases/ directories and ### Phase N.M: headings, never the roadmap summary checklist — so a decimal that existed only as a checklist bullet (no heading yet, no on-disk directory yet) was invisible, and phase insert could silently reallocate an already-used number. It also always nested one level deeper under afterPhase, with no way to request a sibling. cmdPhaseNextDecimal had its own separate, near-identical two-source scan (missing the checklist source too) — the exact "duplicate implementations kept in sync instead of deleted" pattern this issue exists to close. Extracts scanExistingDecimalPhaseNumbers (directories + headings + checklist bullets, in one place) and migrates both cmdPhaseInsert and cmdPhaseNextDecimal onto it — deleting cmdPhaseNextDecimal's own copy rather than patching it in parallel. Adds an allocation: 'nested' | 'sibling' argument to cmdPhaseInsert (default 'nested', matching every existing caller's behavior); a top-level phase with no existing decimal segment falls back to nested since there is no sibling level to join. No CLI flag wires 'sibling' yet — that is a separate, disclosed follow-up. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4569): pin decimal-allocation coverage across phase insert and next-decimal Failing-first coverage for scanExistingDecimalPhaseNumbers: a checklist-only decimal must not be reallocated by phase insert; a decimal present in heading, checklist, and on-disk directory simultaneously must count once; an unrelated phase family's checklist bullet must not cross-pollute; and phase next-decimal (migrated onto the same shared helper) must see a checklist-only decimal too, closing the same gap in a second command. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#4634): extend the phase-id drift guard for name-validity and shell arithmetic The epic's ratchet requirement: lint-phase-id-drift.cjs must cover the two new predicates this PR introduces, and must also scan shell inside gsd-core/workflows/**/*.md and gsd-core/references/**/*.md for integer-coercing phase-number arithmetic ($((10#...)) and friends), which neither the canonical TypeScript module nor a source-only lint can reach. Adds findNameValidityDrift (bans re-deriving /[\p{L}\p{N}]/u outside hasNameableContent's owner file) and findShellPhaseArithDrift + scanMarkdownShellArith (bans $((10#...)) in workflow/reference markdown, sanctioned via <!-- phase-id-owner: --> on the preceding line). scanRepo keeps its existing, narrower contract (src/**/*.cts only) so the already-passing "the live repo is clean" test is untouched; a new scanAll merges both for the CLI's full report. Running the guard directly against this tree correctly reports the 7 pre-existing #4619 shell sites (workflows/execute-phase.md x4, workflows/execute-phase/steps/completion-reconciliation.md x2, references/tdd.md x1) as violations — demonstrating the ratchet works, not fixing them. #4619 is a live regression tracked and fixed separately; this PR does not touch those markdown files. A characterization test pins the current count of 7 so a future change to that number is investigated rather than silently absorbed. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4569): wire --sibling through phase insert's CLI so the argument is reachable cmdPhaseInsert's allocation parameter had no CLI path to 'sibling' — shipped, untested, unreachable code (code-review finding: a guaranteed surviving mutant). Adds --sibling to phase insert's argument parsing, threads it through, and documents the flag in docs/CLI-TOOLS.md. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4569): exercise --sibling end-to-end through the real CLI Confirms --sibling joins afterPhase's parent decimal level rather than nesting, and falls back to nested when afterPhase has no existing decimal segment (no sibling level to join). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4634): demonstrate the two new drift detectors end-to-end via a planted violation The epic asks for the guard to be "demonstrated by watching it go red" on a reintroduced copy. The two new detectors (name-validity, shell-arith) had only unit-level fixture tests; mirrors the existing bracket-rule's planted-violation-in-a-temp-tree test for both, proving they're actually wired into scanRepo/scanMarkdownShellArith end-to-end, not just correct in isolation. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#4634): consolidate the drift guard's own owner-sanction-check logic Standards review flagged the "walk to nearest preceding non-blank line, check for a phase-id-owner comment" logic as duplicated across all four detector functions in a PR whose whole point is eliminating exactly that pattern. Extracts isSanctionedByPrecedingComment, shared by all four; behavior-preserving (verified: identical output before/after, same 7 known #4619 violations, zero token/bracket/name-validity). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#4634): add Fixed changeset for the name-validity guard and allocation consolidation pr:0 placeholder — backfilled once the real PR number exists. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4126): consolidate branch-name slug substitution into one shared renderer cmdCommit (commands.cts) and cmdInitExecutePhase (init.cts) each independently implemented branch-name template substitution, and both substituted the literal string 'phase' when phase_slug was empty or undeliverable — producing a non-identifying branch name (gsd/phase-08-phase) that contradicted the honestly-reported phase_slug: null in the same payload. Same structural defect as the other three gaps in this epic: two consumers reimplementing one concept independently instead of sharing an owner. Adds renderPhaseBranchName (src/phase-id.cts) as the sole owner: a real slug substitutes normally; an empty/undeliverable one drops the {slug} token plus one adjacent separator (collapsing/trimming the result) rather than substituting a placeholder word, for the shipped default template and any user-configured shape alike. Both call sites now delegate to it; the old inline duplicates are deleted, not kept in sync. {project} substitution stays a separate step in init.cts, unchanged, since it is a config-level field with its own fallback contract. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4126): pin renderPhaseBranchName and both migrated call sites Property-based coverage for the shared renderer's degrade-path invariant (output, when non-null, never contains {slug} and never starts/ends with a separator), plus example coverage for real-slug substitution, empty/null/ non-string slug, token position at either edge, a doubled-separator template, and the only-{slug} -> null case. One regression test each in commands.test.cjs and init.test.cjs confirms a phase with no derivable slug no longer produces a branch name ending in the literal '-phase'. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: route scanExistingDecimalPhaseNumbers through the canonical enumeration owner Caught by an actual gsd-test run, not a hypothesis: the new decimal-scan helper (fix(#4569)) enumerated phases/ directories via a raw fs.readdirSync, which the pre-existing phase-enumeration drift guard (#3185/#3882) correctly flags as an unsanctioned re-derivation outside its canonical owner (listAllPhaseDirs / isSentinelPhaseId). Ironic given this epic's own thesis, and exactly why the guard exists: consolidating one seam can reintroduce drift in an adjacent one if the new code doesn't route through what's already there. Migrates the enumeration to listAllPhaseDirs; identical decimal-detection output for every existing case. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#4634): extend the drift guard for branch-slug fallback; fix a real regex bug Adds the fourth detector the epic's ratchet section names ("both branch-name sites"): bans a `.replace('{slug}', ... || 'phase')` call outright, sanctioned via renderPhaseBranchName or a dedicated comment. Wired into scanRepo (no per-file exemption — this is a banned anti-pattern everywhere, not a grammar with one legitimate owner). Now that #4126's fix (prior commit) has landed, scanRepo reports zero violations across all four .cts-scanning rules, restoring the simple "the live repo is clean" assertion instead of a pinned-known-count characterization. Also fixes a real bug an actual gsd-test run caught: findNameValidityDrift's regex didn't tolerate the doubled-backslash template-string form its own test claimed to cover (0 !== 1) — widened to \{1,2} matching TOKEN_DRIFT_RE's existing tolerance for the same two forms. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4126): document the {slug} degrade behavior; update changeset for the full seam Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: detectPhaseNumberFromFiles wrongly rejected bare, slug-less phase directories Caught by an actual gsd-test run on the #4126 regression test, not a hypothesis: a bare phase directory with no slug remainder (e.g. .planning/phases/01/) has extractPhaseToken correctly return "01" — which is simply identical to the directory name in that case, not its no-match fallback. A stale `token !== phaseDir` check treated that equality as "no numeric token found" and rejected it regardless, leaving phaseNum null and silently skipping cmdCommit's phase-branching block entirely (the commit proceeded on whatever branch was already checked out instead of the phase branch). phaseTokenShape.test(normalized) already excludes every genuine non-phase case on its own: extractPhaseToken's real no-match fallback only fires for a dirName that doesn't start with a digit or short letter+digit prefix, and normalizePhaseName's leading-\d+ requirement rejects those regardless. The equality check was redundant for real rejections and actively wrong for bare-numeric directories. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore: backfill changeset PR number to 4640 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
What is GSD Core
GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Antigravity CLI, Kimi CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.
How it works
Each milestone repeats the same five-step loop, one phase at a time:
- Discuss — capture implementation decisions before anything is planned
- Plan — research, decompose, and verify the plan fits a fresh context window
- Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
- Verify — walk through what was built; diagnose and fix before declaring done
- Ship — create the PR, archive the phase, repeat for the next one
Quickstart
npx @opengsd/gsd-core@latest
The installer prompts for your runtime (Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.
On another runtime or without Node.js? See Install on your runtime.
Once installed, start a new project or onboard an existing repo:
/gsd-new-project # greenfield project
/gsd-onboard # existing codebase
New here? Follow Your first project for a guided walkthrough from install to first shipped phase, or Onboarding an existing codebase for brownfield setup.
Documentation
What's new in 1.7.0 → docs/whats-new-1.7.0.md
Tutorials — learning by doing:
How-to guides — task-focused recipes:
Reference — authoritative facts:
Explanation — concepts and design decisions:
Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.
Why it works
Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.
Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.
Community
| Project | Platform |
|---|---|
| gsd-opencode | Original OpenCode port |
| Discord | Community support |
Star History
License
MIT License. See LICENSE for details.
Claude Code is powerful. GSD Core makes it reliable.