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* test(#3233): zero plans (0/0) is a no-op; plans-but-none-done still writes 0% cmdStateUpdateProgress mapped 0/0 through clampPercent to 0% and rewrote the shipped Progress record after milestone close. Replace the stale 'handles zero plans gracefully' test (which asserted the buggy percent:0) with a #3233 no-op regression (100% record preserved, updated:false), and add a negative-space guard: plans exist but none done must still write a legitimate 0%. RED — fails on next; fix follows. * fix(#3233): no-op state update-progress when the milestone scan finds zero plans cmdStateUpdateProgress mapped 0/0 through clampPercent to 0% and unconditionally rewrote the body Progress line, so after /gsd-complete-milestone archived the phases (.planning/phases/ empty, scope COMPLETE) a routine update-progress run destroyed the shipped record ([██████████] 100% → [░░░░░░░░░░] 0%). Add an early-return no-op when totalPlans === 0 — mirroring the established scope-withholding no-op (stderr WARNING + {updated:false, reason}) and computeProgressPercent's null-for-empty contract ('nothing to measure' ≠ '0% done'). The legitimate 0% case (plans exist, none summarized) is unaffected: totalPlans > 0 reaches clampPercent(0, N>0) = 0 and writes 0% as before. * test(#3233): unshadow 'Progress field missing' — clear the zero-plans guard The new totalPlans===0 no-op guard fires before the 'Progress field not found' branch, so the existing 'returns error when Progress field missing' test (no phase dirs → 0 plans) was passing for the wrong reason and that branch lost coverage. Give that test a phase dir + PLAN so totalPlans > 0 clears the guard and it reaches the branch it is named for. (Isolated review finding.) * chore(#3233): add changeset fragment * chore(#3233): backfill changeset PR number (#3375) --------- 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.