* test(#3572): pin single-frontmatter contract for phase remove STATE.md writes Failing-first regression for #3572: when the removed phase has a directory and the body lacks Total Phases/of-N, cmdPhaseRemove's no-op-guard bypass prepended the count field to the WHOLE file — before the opening fence — corrupting STATE.md into two frontmatter blocks. Rows also strengthen the #2640 coverage (whose first-match assertions pass even on a corrupted file) and pin the issue's ROADMAP-only control. * fix(#3572): keep phase remove's STATE.md write single-block and drop the removed heading from ROADMAP Two defects in the decimal-phase removal path: (1) the #2640 no-op-guard bypass prepended 'Total Phases: N' to the WHOLE file content, landing it before the opening fence and corrupting STATE.md into two frontmatter blocks; the field now inserts at the top of the BODY, after the closing fence (EOL-aware, frontmatter-less files unchanged in behavior). (2) updateRoadmapAfterPhaseRemoval matched the raw query token ('1.1') against the normalized zero-padded heading ('Phase 01.1:'), so the removed phase stayed in ROADMAP and the resync counted it; the heading, checklist, and progress-row matchers are now zero-pad tolerant, which also covers unpadded integer headings. * fix(#3572): clamp phase-count decrements at zero; harden EOL detection; pin controls Review findings: a stale 'Total Phases: 0' could decrement to -1 on the next removal (both the field and the 'of N' phrase now clamp at 0); insertStateBodyFieldAtTop detects EOL from the first line ending so an LF-dominant file with a stray CRLF cannot fall through to the raw prepend; the issue's insert-alone control is pinned; row 1 pins the body-field value (dir-count provenance) alongside the roadmap-derived frontmatter count. * fix(#3572): keep CRLF endings intact in the body-field insertion Green-run failure root cause: splitting on '\n' but re-joining on a detected '\r\n' doubled every carriage return in CRLF files. Split and join uniformly on '\n' so each '\r' stays attached to the line it terminated. * chore(#3572): add changeset fragment * chore(#3572): backfill changeset pr number --------- Co-authored-by: sim <sim@local>
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.