c933184b97
* test(#3172): failing-first suite for the stated failing-direction probe Pins the <fails_when> pairing walk, placeholder denylist, MISSING sentinel exemption, degraded-read contract, CLI arm and the plan-authoring contract text. RED by construction: the module exports it requires do not exist yet. Executed on the remote runner. * feat(#3172): require a stated failing direction for every automated acceptance command Every runnable <automated> command now carries a <fails_when> sibling naming what output constitutes failure. A command with no expressible failure mode is not an acceptance test: it reads as rigour and is not falsifiable. - verify-command-grounding gains a failing-direction probe sharing the existing <automated> grammar, MISSING sentinel and walk guard rather than copying them - gsd-tools check verify-failure-directions <N> backs it; plan-phase dispatches it and hands the JSON to gsd-plan-checker check 8f - Dimension 8 detail extracted to references to stay under the agent size cap Verified on the remote runner. * fix(#3172): close four review findings in the failing-direction probe - MISSING_SENTINEL_RE matched an env-var assignment prefix (MISSING=1 cmd), so a real command was exempted from the new blocking gate. Tightened the SHARED constant rather than adding a second copy. - Both token regexes scanned to EOF on unclosed openers (O(n^2), 1562ms at 40k). Bodies are now non-crossing; 1ms, byte-identical on well-formed input. The pre-existing AUTOMATED_BLOCK_RE carried the same defect and is fixed here too. - probePhaseFailingDirections reported status 'ok' when one plan was unreadable, conflating 'could not look' with 'nothing to report'. - Extracted the phase-resolution block both check arms had copied verbatim. Also corrects a docs/AGENTS.md dimension list stale since #2401. Verified on the remote runner. * fix(#3172): project the planner rule onto the spawn contract, settle emitted bookkeeping The remote runner refuted the planner-side edit. agents/gsd-planner.md is frozen under a 49152-LF-char cap asserted by four suites and sat at 49,146 — six chars of headroom — so the +537 of authoring rule blew it. #3297/#3645 already settled where such a rule goes: the planner spawn contract in plan-phase.md, beside <tracked_source_paths>. The agent file is reverted to origin/next verbatim. - plan-phase.md gains <failing_direction_contract>; tests row 30 now asserts the contract there and row 30b guards the freeze in both directions - plan-phase.md growth acknowledged by APPENDING to the 3409 fragment, per the precedent that two ack sources may never name the same path - install-tree fixtures regenerated for the three new reference files Verified on the remote runner. * chore(#3172): backfill PR number into the changeset fragment pr:0 -> pr:3825 now that the PR exists. --------- 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.