* fix(2112): scope commit to --files pathspec, not entire index cmdCommit/cmdCommitToSubrepo/cmdPrSubrepo staged exactly the files named in --files but then ran a bare 'git commit' with no pathspec, absorbing anything else in the index into a commit whose message described only the named files (#2112). Fix: append '-- ...stagedPaths' to the commit args when the caller declared a scope. Three guards are load-bearing: - stagedPaths (not filesToStage) excludes skipped missing files (#2014) - explicitFiles gate keeps the default .planning/ path byte-identical - MERGE_HEAD check via 'git rev-parse' falls back to bare commit during merge - --amend is left without pathspec (different operation) cmdPrSubrepo pathspec uses changedFiles (old+new for renames) so the full rename is captured atomically. Also fixes workflow markdown in spec-phase.md and add-tests.md. All-files-missing now short-circuits to nothing_to_commit instead of absorbing the entire index under a message describing files that were not committed. * docs(changeset): backfill PR number (#2148) * test: update golden-install-parity fixtures for workflow markdown changes (#2112) * test: update golden fixtures + workflow baselines for #2112 changes - claude-local.json golden fixture (now generated via gen script) - workflow-size-baseline.json (add-tests.md +16, spec-phase.md +42 bytes) - Extended gen-golden-install-parity-zcode.cjs to also regenerate the claude local-layout fixture
GSD Core
Git. Ship. Done.
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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
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.