35174ce9b0
Add tests/issue-57-runtime-install-no-drift.test.cjs protecting the Runtime Install Policy Module boundary (ADR-58) and the explicit Runtime Config Adapter Registry (#60), now that #58/#60/#56 have landed and the seam exists. The guards fail when: - (AC1) supported-runtime metadata is added to an installer/query call site (allRuntimes, the interactive runtimeMap menu) without a matching registry adapter entry — enforced by three-way set equality across allRuntimes, runtimeMap values, and ALLOWED_CONFIG_RUNTIMES. - (AC2) config-mutation dispatch escapes the registry: every intent uses a registry-declared install surface, every permission writer is null or a registry-known runtime, unknown/prototype-key runtimes fail loudly, and a new inline 'runtime === "..."' branch against an unregistered runtime is rejected. Assertions are behavioral (require + reflect on live exports) where behavior can cover the contract (AC3); two annotated structural guards cover what it cannot. Existing installer/runtime-policy/runtime-global-skills suites stay green (AC4). Gates: eslint, lint-test-file-count, full Mac suite (12715 pass / 0 fail) and Linux Docker (14709 pass / 0 fail) all green; Codex adversarial-review, /code-review, and /security-review run with findings addressed. Closes #57 Co-authored-by: Claude Opus 4.8 <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, Gemini 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, 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, 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.