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* test(#4129): failing-first regressions — completed_phases clobber on resyncing writes and phase-complete failure to increment * fix(#4129): completed_phases derives from the ROADMAP authority and the write path honors the progress-ratchet Three coordinated prongs (diagnosis in .gsd/bug/fix-4129-completed-phases-recompute/): P1 — buildStateFrontmatter's disk scan floors the completed-phases numerator at the milestone-scoped ROADMAP Complete-row count (deriveProgressFromRoadmap, the one owner), gated inside the same safeToUseRoadmapCount / not-withheld branch that owns the denominator. A completed phase whose verification routes stale (#2348 clean-commit-time drift) or is missing no longer under-counts forever. P2 — applyPreserveAlways's resync arm merges instead of wholesale-replacing on a measured scan: totals derived both directions (#2440), completed counters up-only (#2969 — the schema-declared progress-ratchet, now enforced on the write path like the read path always has), percent recomputed from the merged counters. The #3756 unmeasured guard and the #3242 explicit-progress contract are unchanged. P3 — phase complete's atomic 3-file commit passes the post-completion ROADMAP-derived counters through the #2736 authoritativeFm seam (new object direction for the progress key; completedOnlyRaise at the post-preservation re-assert), because the transaction's disk scan reads the pre-completion ROADMAP and failed to increment on the completing phase's own write. * fix(#4129): adversarial-review hardening — intent is a floor at BOTH authoritativeFm sites The pre-preservation merge could lower a correctly-higher disk-derived counter (a verification-passed phase whose ROADMAP table row drifted behind the disk signal). completedOnlyRaise now governs both application sites: the intent and the derivation agree on direction (up), never on subtraction. * fix(#4129): the ratchet merge keeps derived values verbatim when numerically equal The re-parsed derived block carries string scalars ("2") while the curated snapshot carries numbers (2); substituting the curated spelling over an equal derived one was a no-op in substance but a shape churn the ADR-3473 §8.7 reporting loop surfaced as a phantom preserved-over-disagreeing-derived warning on phase complete (ADR-3408 §8.5 Matrix B). Only a strictly-greater curated counter replaces the derived value now; percent gets the same verbatim rule. * changeset(#4129): backfill PR 4359 --------- 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.