6ebe6372ce
* fix(#4243): anchor stateReplaceProgressPercent bold form to line start The bold branch of stateReplaceProgressPercent carried no ^ and no /m flag, so a bold percent-ish label quoted MID-SENTENCE inside prose — an Accumulated Context bullet mentioning **Progress:** — captured the machine-segment rewrite and destroyed the rest of its line, silently, while the real Progress line stayed stale (and the frontmatter moved on without it, breaking the #4213 surfaces-agree contract). Every caller (cmdStateUpdateProgress, syncCore's percent arm, applyPostSyncPreservation) feeds the whole document, so all three were exposed. Anchored to ^([ \t]*\*\*Progress:\*\*[ \t]*)([^\r\n]*)$ with /im — the exact idiom #4453 applied to stateReplaceField's bold branch (same-line confinement per #4010: the leading class is [ \t]*, deliberately not \s*, which can consume the newlines before the label into the match; $ is explicit-and-inert and documents end-of-line). #2177's recorded requirements all stand: frontmatter is stripped before matching, the suffix-preserving machine-segment swap is untouched, and bold-beats-plain priority now governs line-start forms, so an earlier free-text plain Progress: line still cannot capture the rewrite ahead of the real bold status line. Per the maintainer ruling (2026-09-07), #2177's incidental bold-anywhere matching was not load-bearing. * test(#4243): scope the C4 region check with splitLines, not a bare \n split lint:ci (local/no-crlf-fragile-split) flagged the free-text-plain-line row's content.split(/\n## /)[0] — a bare \n split on readFileSync content is CRLF-fragile under Windows autocrlf. Same scoping via splitLines() (src/text-lines.cts), which splits on \r?\n. * chore(#4243): backfill PR number in changeset --------- 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.