6a9e6cb0ae
Maintainer CHANGES_REQUESTED (reviewede08667e5, pre-portability-fix): - B1: lint-rule no longer greens an unparseable target (eslintHasFatalError -> fail closed on any fatal/parse error) or an inline-suppressed violation (eslintJsonHasRule now scans suppressedMessages too). RED-first + real-runner repros. - B2: both child spawns get a bounded timeout (30s node / 60s eslint) + 16MiB maxBuffer; timeout fails closed. Injectable timeoutMs (positive-only — 0/negative can't disable the bound) enables a fast 1.5s hang test. - M1: scoped verify-phase.md — the check descriptor is author-supplied for now; filed #1278 for deterministic auto-locate of the descriptor (the locate half). - M2: added tests/prohibition-enforcement.property.test.cjs (fast-check fail-closed invariants; within the <=2-file budget). - m1: tapTestNames excludes # SKIP/# TODO; parseNodeTestSummary tracks # cancelled; isNonVacuousNodeTestPass requires cancelled===0. - m2: scoped the determinism claim to the decision/parse layer (real runner is env-dependent). - m3: filed #1279 for machine-proven fail-first (violation-fixture probe). - n1: -- before target in both arg builders (option-injection). n2: dropped dead token. - B3 (Windows npx) was already fixed in2af76306(pushed ~65s after the review). Verified node 22 + 24; size baseline regenerated for the verify-phase note.
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, Gemini 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, Gemini 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, Gemini 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 your first project:
/gsd-new-project
New here? Follow Your first project for a guided walkthrough from install to first shipped phase.
Documentation
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.