0aa4202f6a
* test(#4135): regression rows for pristine regen coverage collapse RED skeleton: src/pristine-baseline.cts exports findPristineInGit as a null-returning stub (wired into verifyFile after the #4145 orphan tier, behavior-neutral) so the git-history rows fail behaviorally, not at require time. Failing-first rows: baseline_covered aggregate on a 1-of-13 multi-version fixture, coverageHeadline typed renderer, the opt-in --min-baseline-coverage gate (exit 3, >= threshold semantics, vacuous-pass and malformed-value boundaries), git-history baseline recovery (dropped-line catch + surviving-line verify + older-commit hop), findPristineInGit unit, Step 5a workflow headline contract, and the installer-side describeBaselineCoverage honest N-of-M summary with the collapse disk-state pinned. Negative-space rows pin today: non-git ok_no_baseline posture, no-match-no-adoption, #3657 drift never rescued, canonical precedence, and no git tier without --pristine-dir. * fix(#4135): headline baseline coverage, opt-in strict gate, git-history widening The #3407 promotion rule regenerates gsd-pristine/ baselines from the INCOMING release source and keeps only candidates byte-identical with the OUTGOING recorded hash — correct in isolation, but on a multi-version jump the surviving set is precisely the files upstream did NOT change. The verifier then reports ok_no_baseline (advisory, exit 0) for everything else, and no surface distinguishes a 12-of-13-unverified green run from a fully-verified one: the human summary printed Checked/Failures only, the JSON had no coverage aggregate, and the installer's update output gave per-bucket counts without N-of-M framing. All three issue directions, none exclusive: - Report coverage prominently: --json gains an additive baseline_covered aggregate; the human summary leads with 'Baseline coverage: N of M file(s)...' on every run plus an advisory section naming each skipped file and reason; the installer prints an honest covered-of-modified line via the exported describeBaselineCoverage helper (typed return, exact contract); workflow Step 5a computes and prints the headline before any pass/fail framing. - Fail louder on low coverage: opt-in --min-baseline-coverage <0..1> exits with new documented code 3 when coverage falls below the threshold (>= semantics; empty run vacuously passes; content failure exit 1 outranks it; malformed values are usage errors, exit 2). Default posture unchanged — no_baseline stays advisory per #934. - Widen the promotion rule (its only trustworthy form): when no baseline resolves under gsd-pristine/ and a hash is recorded, the verifier now recovers the baseline from the config dir's own git history — the workflow's documented Option A — anchored by the same authority every tier trusts, exact pristine_hashes sha-256 equality. Read-only (git log/git show, windowsHide per #685), bounded (100 commits/file, 10s/subprocess), null-on-any-failure so ok_no_baseline remains the universal fallback. Tier order: canonical join -> #4145 orphan scan -> git history -> OK_NO_BASELINE; #3657 drift and canonical precedence untouched. Hash validation in saveLocalPatches is NOT relaxed — the collapse is legitimate conservatism; hiding it was the bug. Measured on the issue's shape (13 files, 12 changed upstream, 1.10->1.12): non-git installs report baseline_covered 1/13 with the headline and can gate at exit 3; a git-managed config dir with the outgoing bytes in history verifies 13/13. Review fixes folded in: workflow headline derives the unverified count from checked - baseline_covered (not the drift+no_baseline sum), and the new site-scoped allow-test-rule annotation carries its ADR-456 see-ref on the marker line. Emitted-Drift-Ack-Growth: reapply-patches.md — #4135 — +20 lines / ~1.5 KB, prose and bash only: two additive parse lines (BASELINE_COVERED, CHECKED_COUNT), a Step 5a coverage-headline block printed BEFORE any pass/fail statement (documents the opt-in --min-baseline-coverage exit-3 gate), and one Option B sentence noting the verifier's read-only git-history fallback. No step ordering, gate, tool-invocation, or dispatch shape changed; 5a's fail/drift/advisory handling is unchanged, the headline only precedes it. * chore(#4135): backfill PR number into changeset fragment --------- Co-authored-by: agent-4135 <agent-4135@gsd.local>
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.