* fix(#2653): regenerate stale api-coverage.cjs + add artifact-sync guard The tracked build artifact gsd-core/bin/lib/api-coverage.cjs had drifted four days behind src/api-coverage.cts: PR 2551 landed the #2366 fix in the source without regenerating the compiled output, so the module that actually ships still carried none of it. Regenerate the artifact, and add scripts/lint-compiled-artifact-sync.cjs to lint:generated-sync so a tracked compiled artifact can never again silently diverge from its source. The check derives its file set from git ls-files rather than a hand-maintained list, and is regime-agnostic: if these artifacts are later untracked and gitignored per ADR-457, the tracked set becomes empty and the check passes trivially. Verified fail-first: the guard exits 1 against the previously-committed artifact (37731 bytes vs 38634 expected) and 0 after regeneration. Also fixes a defect this change surfaced in tests/no-phantom-issue-refs: its PHANTOM list still banned 2551 and 2361, but GitHub numbers issues and PRs from one shared counter and this repo has since reached 2654, so both now resolve to merged PRs. The guard was rejecting accurate citations of them — it failed this very commit for naming PR 2551 as the drift's provenance. Verified by replaying the guard's scan: 1 offender under the old list, 0 under the pruned one. Only 3182 is still a 404. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#2653): backfill changeset pr number to 2656 --------- Co-authored-by: Claude Opus 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.