647365faf1
* test(#4011): TDD gate keys on TDD_MODE alone, not the MVP intersection Contract updates: no shipped line may conjoin MVP_MODE with TDD_MODE as a gate condition, the end-of-phase escalation must not require MVP, the executor agent's gate section triggers on TDD_MODE alone, and the gate semantics reference loads without MVP_MODE. * fix(#4011): key the TDD runtime gate on TDD_MODE alone The RED-commit gate shipped as #76's MVP slice kept the paired invocation's conjunct, so workflow.tdd_mode=true was silently inert on every non-MVP phase, contradicting references/tdd.md's own contract. Drops the MVP conjunct from the per-task gate and the end-of-phase review escalation; rescopes execute-mvp-tdd.md's load condition, gsd-executor's gate section, and mvp-concepts' intersection claim. MVP remains free to imply TDD; the file is not renamed (stated assumption in the PR body). * test(#4011): scope no-conjunct detector to shell conditions; clean stale MVP+TDD phrasing Review follow-ups: the detector now only inspects if/[ condition lines so explanatory prose mentioning both flags cannot trip it; remaining 'under/outside MVP+TDD' phrases in execute-phase.md, the gate reference, and docs/INVENTORY.md now describe TDD-mode semantics. Emitted-Drift-Ack-Growth: execute-phase.md — TDD-gate decoupling comment + escalation rescoping (#4011) Emitted-Drift-Ack-Growth: gsd-executor.md — gate section trigger rescoped to TDD_MODE alone (#4011) * chore(#4011): backfill changeset pr number --------- Co-authored-by: sim <sim@local>
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, 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.