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* docs(#4333): document the ADR Amends/Amended-by convention Two patterns for amending an accepted ADR are established practice — an in-place `## Amendment (YYYY-MM-DD)` section, and a separate ADR that declares `Amends` with a reciprocal `Amended by` back-link — but only the first was ever written down. #4030 shows the cost: a contributor concluded no ADR owned a contract that ADR-857 already covers, because nothing said the second pattern (used by ADR-1244 and ADR-2782 to extend ADR-857 itself) existed. Document both patterns in docs/contributor-standards.md, note the Amends/Amended-by reciprocity rule in docs/adr/README.md alongside the existing Supersedes/Subsumes rule (and that it isn't yet gated by scripts/gen-adr-index.cjs the way those are), and point CONTRIBUTING.md's new-ADR process at the amendment path for revisiting an existing one. Closes #4333 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4333): fix imprecise Amends/Amended-by precedent citations Orthogonal review caught two inaccuracies: PR #1643 doesn't match the in-place dated-section pattern (it rewrites the original Decision text rather than appending an untouched dated section), and ADR-1244's relationship to ADR-857 is prose ("extended by"), not the structured Amends/Amended-by header field. ADR-2782 is the verified precedent for the structured field pair — its one Amends field names four targets (857, 894, 1016, 1244), all four carrying the reciprocal back-link. 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.