gen-plugin-skills.cjs --check already guarantees skills/*/SKILL.md matches what commands/gsd/*.md generates, so the two trees cannot silently diverge FROM EACH OTHER. Nothing guarded the shape #3085 actually found: a command shipping Bash without Grep purely by omission, identical in both trees and therefore invisible to a parity check that only compares them to each other. That drift ran until 29 of 71 skills lacked a tool most of their siblings declared, and a manual audit — not a gate — is what surfaced it. Detection only: the lint never edits a command's allowed-tools. Two failure classes, not one. Violations are the rule itself. Stale exemptions are the other half: an entry whose command is gone, or which no longer declares Bash without Grep, fails just as loudly. An exemption list that can only grow becomes a list of things nobody re-examined, and a pre-forgiven command silently absorbs the next omission. That check earned its keep immediately. #4394 named eight exemptions from the #3085 review — the six ns-* dispatchers, help, and surface — and seven of them do not declare Bash at all, so the rule never reaches them. Listing them would have pre-forgiven seven commands for a condition none of them has. Only surface needs an entry. The tests drive synthetic fixtures rather than the live corpus: asserting "the real tree is clean" would say nothing about whether the rule can detect anything, which is the exact failure mode this lint exists to close. The one live-corpus arm asserts no stale exemptions — a property of this script's own list — and deliberately does not pin a violation count, which would make it a baseline every fix has to update. Co-authored-by: Tom Boucher <trekkie@nomorestars.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.