d49ac81306
* chore(#2143): markdown table model + schema registry + fail-loud pilot — Phase 1 Phase 1 of epic #2143 (ADR-2143): consolidate markdown table parsing onto a canonical seam and migrate the pilot reader. - Add src/markdown-table.cts: parseMarkdownTable (GFM tables -> typed {columns, rows} addressed by column NAME; ragged rows are typed parse errors, not silent), a single-source TABLE_SCHEMAS registry (RoadmapProgress / RequirementsTraceability / QuickTasks / Security, with variants under one id), matchTableSchema, and findTableBySchema. Result<T> is scoped to this seam (distinct from the dispatch Result). - Migrate deriveProgressFromRoadmap (src/phase-lifecycle.cts) off the position-anchored regex to name-based resolution via the seam — fixes #2137 (the 5-column milestone-grouped Progress table previously returned all-null). - Add a schema-backed `gsd-tools quick-tasks-append` subcommand and route fast.md's log_to_state through it, retiring the inline `awk NF-2` column arithmetic — fixes #2133 (addresses #2012, #2119). Cell values are escaped (| and newlines) and the STATE.md read-modify-write is atomic under readModifyWriteStateMd (lost-update race, cf. #500/#905/#1230). - Writer/reader/template parity test guards TABLE_SCHEMAS against drift (ADR-2143 §3 Generative-Fix-Divergence). Registration: .gitignore, eslint.config.mjs, docs/INVENTORY.md + INVENTORY-MANIFEST.json, CONTEXT.md glossary, docs/CLI-TOOLS.md. Behaviour-preserving for the canonical 4-column Progress table; the named bugs are driven fail-first. Extend-never-mutate (ADR-2143 §2). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * chore(#2242): backfill changeset PR number (#2248) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#2242): escape backslash before pipe in markdown-table cell escaping CodeQL js/incomplete-sanitization (high): escapeCell escaped | -> \| but not the backslash itself. Now escapes \ -> \\ before | -> \|, and splitTableRow unescapes both \\ -> \ and \| -> | symmetrically so cell values (incl. literal backslashes) round-trip exactly. Added backslash round-trip tests. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#2242): read ROADMAP Progress table by column name — supersede #2168 ad-hoc scan Rebase reconciliation with #2168 (the tactical #2137 fix that marked itself "pending #2143"). deriveProgressFromRoadmap now resolves the Progress table via a new seam helper findTableWithColumns (first table whose header is a superset of Phase/Plans Complete/Status/Completed, any order, extra columns ignored) and reads cells by NAME — order/injection-invariant per ADR-2143 §3 — instead of the exact TABLE_SCHEMAS match. This satisfies #2168's column-invariance property test while staying seam-based and preserving its `## Progress` scoping (#2012/#1445). Ragged Progress tables now resolve to null (ADR-2143 fail-loud); updated the stale state.test.cjs assertion that predated the Phase-1 migration. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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
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.