* test(#3898): a spaced-hyphen thematic break in ## Gaps is not an entry (failing first) * fix(#3898): a separator-shaped line in ## Gaps is skipped, not made an entry splitGapsEntriesCore's opener regex (/^(\s*)-\s/) matched a spaced hyphen thematic break, fabricating a gap named '- -' with result 'unknown' — surfaced by audit-uat as an outstanding finding that cannot be cleared by editing any entry, because there is no entry, only the separator the author wrote for readability. Five shapes were affected (- - -, -, and wider/indented variants); the unaffected ones (---, ----, * * *, ___) were safe only by accident — the path never matched them, not because it understood breaks. A line whose content after the opening marker is solely hyphens and whitespace (with at least one further hyphen) is now skipped entirely — neither an opener nor a continuation. Deliberately option 2 from the issue, not a full thematic-break concept: a break does not close the Gaps list, entries after it keep parsing, and the deliberately-frozen byte-for-byte Gaps behavior changes ONLY for documents carrying such a separator (which previously produced a phantom). A real entry whose truth begins with a hyphen (- truth: "-5 error budget...") is untouched — its remainder contains non-hyphen characters. * fix(#3898): review fold-ins — span-contiguous skip, property coverage The skip is narrowed to where the phantom came from: a separator-shaped line BETWEEN entries (nothing open, or it would open a top-level entry). One landing strictly inside a live entry (indent > baseIndent) folds back as a continuation line, so entry lines and the GapsEntrySpan agree byte-for-byte — the span invariant and the #3805 ack writer's identity re-verification both hold (the review traced the unconditional skip to a match_verification_failed refusal in that corner). Adds the parser- convention property test (arbitrary hyphen counts/indents/spacings) and a span-contiguity pin. * chore(#3898): changeset fragment (pr number backfilled after PR creation) * chore(#3898): backfill changeset PR number (4057) --------- 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.