Folds 15 tests/fix-*.test.cjs regression files (191 test() blocks) into their module's main suite, per the wave decomposition of #3315 (H3 of epic #3053). 187 blocks land in 8 existing suites (4 exact-duplicate cases dropped, documented inline); 4 blocks move via git mv into 2 new suite files with no prior coverage to merge into. Zero production behavior change. Also tightens two H1 (#3313) ratchets that the fold's own file-count reduction moved past their grace window, per the ratchets' documented dual failure mode (a stale/too-loose baseline fails exactly like a novel violation): - lint-test-file-count.allowlist.json: removes the stale "audit" entry (folding fix-2766 into tests/uat.test.cjs drops that module back to its 2-file cap). - lint-allow-test-rule-refs.ceiling.json: lowers maxFiles 314 -> 309, the real post-fold high-water mark (gsd-test's own repo-baseline test caught this — CI, not a human, found it). Two orthogonal review passes (Standards+Spec code-review, isolated security-review) found and this commit fixes two issues before push: a genuinely-distinct #2287 test case (file-absent vs. file-present- resolved) that a prior fold pass had wrongly dropped as a duplicate — restored verbatim into tests/uat.test.cjs; and a missing same-line allow-test-rule citation on the #2196 block in tests/debug-session-management.test.cjs, added for consistency with its sibling #2257 block. lint-removed-but-needed also caught two stale doc references to the now-folded-away fix-2285-claude-orchestration-wiring.test.cjs filename (docs/adr/1143-claude-orchestration-capability.md, gsd-core/references/execute-phase-response-language.md) — updated both to point at tests/claude-orchestration.test.cjs, its new home. Co-authored-by: sim <sim@local>
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
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.