* test(#2734): failing-first suite for the statusline STATE.md freshness marker Binds the contract before any hook change exists: a `state ~N commits back` segment gated on the state_head stamp landed by #2622, firing at the same advisory threshold /gsd-health's W024 uses rather than at > 0. Covers all five acceptance criteria — threshold parity (19/20/21 boundaries), both renderers including formatGsdStateCompact, an exact spawn-count assertion, repo-pinning and sub_repos degradation, and behavioral parity against readStateHeadFreshness rather than a source-grep of the two fence copies. 52 example-based tests plus 5 seeded fast-check properties. Red now by design. * feat(#2734): surface STATE.md commit-age on the statusline Adds an opt-in `state ~N commits back` marker to the GSD-state segment, consuming the `state_head` stamp and freshness contract landed by #2622. A solo developer returning to a project reads "Phase 4, executing" in STATE.md and acts on it, without noticing the codebase moved 40 commits since that line was written. /gsd-health reports it as W024, but only if you think to run it; the statusline is the surface you see without asking. Fires at STATE_HEAD_ADVISORY_COMMITS (20), the same threshold W024 uses, not at > 0: with commit_docs:true the commit carrying a STATE.md sync advances HEAD by one, so > 0 would alarm permanently on a fresh project. Costs exactly one bounded git subprocess per render and none when disabled. `rev-list --left-right --count` answers ancestry and distance together, and repo pinning is a filesystem check mirroring projectOwnsItsRepo rather than a --show-toplevel compare, which is unreliable on macOS /private/var and Windows 8.3 paths. Every unresolvable input degrades to the tri-state unknown -- the marker is absent, never a "fresh" claim the project cannot substantiate: a malformed stamp, a root that does not own its .git, a sub_repos workspace, history rewound past the stamp, or git being unavailable. Also collapses statusline config resolution onto one resolveStatuslineOptions() seam. runStatusline() and renderStatusline() duplicated it byte-for-byte; one copy is what keeps a newly-added key from reaching only one of them. * test(#2734): route the e2e spawn through the process seam and fix fixture leaks Review findings from the two orthogonal passes: - `bothEntryPointsResolveOptionsIdentically` spawned a child and substring-matched its stdout to test a pure function. It now calls resolveStatuslineOptions() directly — no subprocess, no text matching. - `skipsFreshnessWorkWhenTodoTaskActive` genuinely needs a child (the !task gate lives in runStatusline, which reads stdin), so it now spawns through tests/helpers/process-seam.cjs and proves the negative with a filesystem fact: the git shim appends to a marker file on every invocation, and the assertion is that the marker never appears. Stronger than asserting text is missing, and it drops the last stdout substring match in the block. - Every fixture-creating test now registers `t.after(() => cleanup(dir))` instead of a trailing cleanup(dir), which leaked the temp repo on assertion failure. derivationAgreesWithStateModule reassigns `dir` across five fixtures, so it binds each directory at scheduling time rather than cleaning only the last. Also corrects markerCoexistsWithMilestoneComplete, which asserted the wrong expectation rather than finding a code defect: `percent` drives the progress bar too, so the milestone segment reads "v1.9 [##########] 100%". The marker appends after it, which is what the test exists to prove. CONTEXT.md's opt-in statusline key list was missing statusline.show_git as well as the new key; both are now enumerated. * docs(#2734): backfill changeset PR number (#3700) --------- 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.