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* fix(#4447): classify mixed structural+transient planning commits as a 5th arm pr-branch.md's analyze_commits step computed only NON_PLANNING and STRUCTURAL per commit -- never a total planning-file count -- so its four classification arms assumed every planning-only commit was either wholly structural or wholly non-structural. A commit touching both a structural .planning/ path and a transient/other one matched no arm, and the ambiguous prose let an LLM executing the workflow silently drop it, breaking STATE.md's per-commit revision chain in default mode. Adds an explicit PLANNING_COUNT variable and rewrites the four arms into five, each with an exact computable condition. The new "mixed planning commit" arm (structural + transient/other, no code) gets the same treatment mixed code+planning commits already get: INCLUDE, relying on create_pr_branch's existing universal per-commit filter to strip the transient/other paths -- no new filtering logic needed. tests/helpers/pr-branch-filter.cjs's classifyCommit already returned 'include' for this shape (no upper bound on its structural check); the defect was entirely in the workflow's own prose spec, which is what an executing agent actually reads. New tests pin both: classifyCommit's already-correct behavior (tests 49-50), and a failing-first assertion that analyze_commits computes an explicit planning-total signal (test 51, fails against the pre-fix text). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4447): address code-review findings on the mixed-planning arm - Correct the mixed-planning arm's prose: create_pr_branch's universal filter only strips the TRANSIENT_DIRS subset, not the "other" bucket (config.json, intel/, etc.) -- that subset is preserved, not filtered, same as default mode already does for it on any commit. - Fix the "Mixed planning commits" display line to use the same mode-conditional bracket form as "Structural planning commits" -- it was hardcoding "included" even though the arm is EXCLUDE in strict mode, which would have misled a strict-mode user. - Tighten test 51's regex from unanchored /PLANNING_COUNT=/ to /^PLANNING_COUNT=\$\(/m so it requires the real shell-assignment shape, not just the substring appearing anywhere in prose. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Emitted-Drift-Ack-Growth: pr-branch.md — growth is this PR's own #4447 fix (5th classification arm with explicit computable conditions), not incidental drift * fix(#4447): bound test 51's regex quantifier (local/no-unbounded-quantifier) lint:ci flagged the unbounded [\s\S]*? over readFileSync content as a catastrophic-backtracking risk (CWE-1333 class). Bounded to {0,20000}, comfortably larger than the analyze_commits step's actual size. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4447): add changeset for the pr-branch mixed-planning classification fix Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: eliminate SIGPIPE race in gsd-validate-commit.sh subject/config extraction Discovered while verifying an unrelated PR (#4447): tests/hooks-opt-in.test.cjs's "a git-GENERATED subject is never measured against the supplied message (round 7)" test intermittently got r.status===141 instead of the expected 2 for the --fixup=HEAD case, on a run where the identical code had passed cleanly moments earlier -- confirming a timing race, not a deterministic bug in the test's own assertions. Root cause: gsd-validate-commit.sh runs under `set -euo pipefail` and extracted the commit subject via `SUBJECT=$(echo "$MSG" | head -1)` (two call sites) and the opt-in ENABLED flag via `$(printf '%s\n' "$CONFIG_OUT" | head -1)`. `head -1` closes its read end as soon as it has one line; a real commit message or multi-command-type CONFIG_OUT is multi-line, so the writer can receive SIGPIPE (exit 128+13=141) if its write lands after that close. Under pipefail this is NOT suppressed -- it aborts the whole hook instead of the intended exit-2 rejection. Fix: replace both patterns with pure bash parameter expansion (`${VAR%%$'\n'*}`) -- zero subprocesses, zero pipe/race surface, and behaviorally identical to `head -1` for single-line, multi-line, and trailing-newline input (verified directly). The third similar pipe (`tail -n +2` feeding a `while read` loop that drains to EOF) is a different, race-free shape and was left alone. Regression test is a static, by-construction assertion (per this repo's policy against forcing scheduling races to reproduce deterministically): the vulnerable pipe patterns must be absent from the shipped script, and the parameter-expansion forms must be present. This overrides one-concern-per-PR per CLAUDE.md's Defects & Warnings policy -- a genuine defect discovered mid-work is fixed inline, not deferred to a separate issue. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs: add changeset for the gsd-validate-commit.sh SIGPIPE race fix Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: harden SIGPIPE-race regression test against reformatted reintroduction Code review found the test's original exact-string regexes would miss a cosmetically-reworded reintroduction of the same dangerous head-1 pipe (extra whitespace, an appended 2>/dev/null). Broadened to content-tolerant but still $(...)-wrapped regexes (bounded quantifiers per local/no-unbounded-quantifier) -- verified against both the current file (no false positive, including the fix's own explanatory comments that quote the bare unwrapped pattern in prose) and a synthetic reformatted reintroduction (correctly caught). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(#4447): backfill changeset PR number Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
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.