1bc7f7e6b0
Folds 9 legacy issue-*.test.cjs regression files (140 test() blocks) into their module's main suite, per H3 (#3315) of the test-hygiene epic (#3053). LAST of 4 issue-* waves — closes out the 74-file fix-*/issue-* backlog (pending BUG_FILE_RE extension, held for a follow-up commit until Wave 6 is confirmed merged, per the epic's own zero-backlog precondition). - issue-2828-flat-roadmap-total-phases.test.cjs (1) + issue-3204-state- writer-phase-count.test.cjs (21): both target state-document.cjs buildStateFrontmatter via different CLI entrypoints — merged jointly into state-document.test.cjs, 0 dropped. - issue-2945-phase-complete-checkbox-rollback.test.cjs (4) + issue-2949- phase-complete-stage3-sentinel.test.cjs (4): both target phase.cts cmdPhaseComplete; issue explicitly warned of overlap — verified disjoint fixtures/assertions, 0 dropped, merged into phase.test.cjs. - issue-2927-reviewer-lane-overlay-invocation.test.cjs (10) merged into review-lane-descriptor.test.cjs. - issue-2939-dispatch-flatten-maxdepth.test.cjs (9) merged into host-integration.test.cjs, 2 dropped as verified exact duplicates. - issue-2977-frontmatter-bom.test.cjs (5) merged into frontmatter.test.cjs. - issue-2045-third-party-skills-surface.test.cjs (6) merged into capability-loader.test.cjs. - issue-2517-runtime-aware-profiles.test.cjs (80, the largest single fold in the epic) merged into model-resolver.test.cjs, 1 dropped as a verified true duplicate (checked against src/model-resolver.cts logic, not just title similarity). Fixed a genuine eslint irregular-whitespace finding: a literal BOM character embedded in a doc comment (pre-existing content from the original #2977 source, illustrating what a BOM looks like) — replaced with a readable U+FEFF notation. 3 stale doc references found and fixed (docs/adr/2313, 3180, 443). Zero net test-coverage loss. No production code changed.
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.