77ff068cc3
* docs(#4722): record Kiro and Zoo Code runtime requests as out-of-scope Both #4722 and #4746 asked to add a new first-party, in-tree runtime (Kiro, Zoo Code). The repo's standing policy against expanding the in-tree runtime set already covers this shape of request (crush-runtime-in-core.md, omp-runtime-in-core.md); recording these two so the same asks aren't re-litigated from scratch next time they land. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4722): correct ADR-857 D8 status in the new out-of-scope entries Reviewer caught that the Re-open criteria section, inherited verbatim from the crush/omp sibling entries, claimed the ADR-857 D8 external capability loader "has not been delivered." ADR-1244 (Accepted, ratified 2026-07-17) explicitly states it delivers that exact gate for third-party role:"runtime" capabilities. Correct both new entries to reflect that the mechanism exists today, while keeping the in-tree non-acceptance verdict itself unchanged (a maintainer bandwidth/scope call, not a tooling gap). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4722): match the newer out-of-scope house format Orthogonal review (Standards axis) noted the two newest sibling KB entries (crush-runtime-in-core.md, codex-native-plugin-skips-preproposal.md) lead with a dedicated "## Policy (standing, not case-by-case)" section before "Proposal summary"; these two files folded the same claim into a bullet instead. Restructure to match, no content change beyond de-duplicating the policy statement out of the bullet list it was also stated in. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.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.