185da024cb
* test(#2770): empty contextPath argument must fail closed, not green-skip the decision-coverage gate The handler conflated empty-arg (caller error) with file-missing (legitimate skip), returning passed:true/skipped on an empty argument. Add: empty arg → passed:false; real-path-to-absent-file → legitimate green skip preserved; omitted arg → fail closed. * fix(#2770): decision-coverage gate fails closed on empty arg + workflow recomputes CONTEXT_PATH in-block Handler (check-command-router.cts): split the guard — empty/missing contextPath argument is a caller error (fail closed, passed:false, mirrors #1365); a real path whose file genuinely does not exist keeps the legitimate green skip. Workflow (plan-phase.md): recompute CONTEXT_PATH inside the consuming Bash block (it was set in the step-1 init block, which does not survive into the separately- spawned gate block — so the gate ran with an empty arg and silently green-skipped). * chore(#2770): changeset fragment * fix(#2770): guard workflow empty-glob case (review blocker) + update drift-guard test The handler now fails closed on an empty contextPath arg, so the workflow's unguarded glob (empty when a phase genuinely has no CONTEXT.md) would invoke the gate with an empty arg → passed:false → exit 1, hard-halting the legitimate 'Continue without context' plan-phase path. Guard the empty-glob case: only run the gate when a CONTEXT.md actually exists. Update the F1 drift-guard test (which gave false coverage — it only checked for the ${CONTEXT_PATH} token) to assert the in-block recompute AND the empty-glob guard. * fix(#2770): keep plan-phase.md under ADR-857 size cap + ack emitted drift + fix drift-guard window The workflow fix grew plan-phase.md past the ADR-857 phase-6 size cap (94519B) and triggered emitted-attribution. Condense adjacent §13a prose/JSON to offset (net +89B, under cap). Add tests/emitted-drift-ack.json acknowledging the residual growth. Widen the drift-guard test window (the gate invocation is now nested in the empty-glob guard, so the old 400-char window missed the glob recompute). * chore(#2770): backfill changeset PR number (2881) --------- Co-authored-by: Test <test@example.com>
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.