640eaee16e
* feat(#2930): fragmentize plan-phase.md workflow into per-runtime-composed sections Adds src/workflow-fragments.cts (in-file <!-- gsd:section --> marker parser/composer, ADR-1671 epic #1671 Phase 3), wires it into bin/install.js's copyWithPathReplacement emission path, and pilots the marker grammar on gsd-core/workflows/plan-phase.md. Bookkeeping ripple for the new src/*.cts module: .gitignore, eslint.config.mjs, docs/INVENTORY.md + docs/INVENTORY-MANIFEST.json, and a CONTEXT.md glossary entry. Amends ADR-1671 with open questions 1 and 2 resolutions and records the closed when= applicability grammar. Adds docs/reference/workflow-fragments.md and an ARCHITECTURE.md section documenting the marker authoring model. * fix(#2930): put allow-test-rule issue ref on the same line as the marker lint-allow-test-rule-refs.cjs requires the #NNN issue reference on the same source line as `allow-test-rule:`; it was one line below and read as an unreferenced novel exemption. * docs(#2930): link the orphaned gate-predicates reference from the docs index Found while adding the workflow-fragments reference doc: docs/reference/gate-predicates.md shipped without an entry in docs/README.md, so it was unreachable from the docs index. Fixed inline rather than deferred. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(#2930): scope composition to workflows, add typed failure reasons Review findings from two orthogonal passes: - Scope composeWorkflow to gsd-core/workflows/ only. It previously ran on every .md the installer copied, so a future agent/command/reference doc documenting the marker syntax with an unfenced example would have been mis-parsed and silently stripped — a lossy drop the phase forbids. - Add a frozen REASON enum; failures attach a typed .reason and tests assert on it instead of matching free-form message text (CONTRIBUTING.md:635-694). - Derive the property generator's when= values from WHEN_VOCABULARY instead of duplicating them (DEFECT.GENERATIVE-FIX). - Add adversarial parser fixtures: Unicode headings, NUL, U+FFFD, BOM, fence-within-fence, tilde and indented fences, lone-CR marker line. - Document why --mvp is structurally unmarkable: its content is interleaved, not sectioned, so the whole-line grammar cannot reach it. Also fixes two stale tests on this branch, each reproduced on the unmodified tree before correction. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(#2930): retarget the pilot from plan-phase to execute-phase The full remote matrix went red on both Linux lanes. Root cause was ours: tests/phase6-capstone-conformance.test.cjs holds a PRE_PHASE6 ceiling of 94519 bytes for plan-phase.md, asserting an ADR-857 Phase-6 completion property. That is a third size gate beyond the tier caps and the differential ratchet, and it left plan-phase.md just 36 bytes of headroom rather than the 3821 computed from the XL cap. The 330 marker bytes overran it by 294. Raising the ceiling is not an option: it is a red line certifying another ADR's completion. plan-phase.md is reverted to byte-identical origin/next and the pilot moves to execute-phase.md, which has 728 bytes of headroom under its own ceiling and lands at 93147 with 3 marker pairs. The vocabulary narrows to the atoms actually used: always, flag:--wave, state:gap-closure-phase, state:has-prior-phases. Recorded in the ADR: every branch the epic names lives in plan-phase.md, which cannot be fragmentized until caps move from source to emitted bytes. That is direct evidence for the epic's premise and may reorder phases 3-4. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * chore(#2930): backfill changeset PR number (#2972) * fix(#2930): make the emission install tests portable on Windows The windows-latest lane went red on three tests in the new install suite; Linux was green. Both causes were in the test harness, not the module. Root normalization: the opencode converter always embeds the install root forward-slashed, but the tests stripped it with the native-separator string from mkdtemp. On Windows that never matched, so the root leaked through unstripped — and because the real and stub install roots have different prefix lengths, that length difference landed directly in the byte-delta assertion (344 observed vs 275 expected). Normalize both text and root to one separator form before stripping. @-ref resolution: the helper stripped only the @~/ and @$HOME/ forms, so a Windows absolute ref (@C:/Users/...) fell through and was joined onto the root, producing ...\@C:\Users\... Strip the @ first, then detect absoluteness from the token's own shape (POSIX, drive-letter, or UNC) with no platform branching, so every OS takes the same path. Neither assertion was weakened; the exact-equality byte check is the point of the test and still holds. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * docs(#2930): document every REASON member and guard the doc/enum parity Code review found the reference doc's 'Fails closed' list covering 10 of the 11 frozen REASON members — MALFORMED_ATTRIBUTES (parseAttrs rejects malformed key="value" syntax) had no bullet, and it is distinct from UNRECOGNIZED_ATTRIBUTE, which is valid syntax with an unknown key. Two parallel surfaces sharing one constant with nothing asserting they agree is the DEFECT.GENERATIVE-FIX class, so the same commit adds the parity assertion: the test derives the enum side from the built module and the doc side by parsing the reference page, keyed on the reason IDENTIFIER rather than prose so a reworded bullet does not break it, and reports set differences in both directions by name. Proven non-vacuous: removing the MALFORMED_ATTRIBUTES bullet turns the suite red naming that exact member; restoring it returns 44/44. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 (1M context) <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.