1863f5569c
* test(#3871): failing-first regressions for the dropped curated progress block Pins ADR-3473 §8.6 / #3756 at the consumer's output: state record-session and state add-decision on an archived-milestone project drop the curated progress frontmatter entirely, exit 0, and report nothing. Reproduced against the real CLI before writing the tests, not inferred from the issue text. Also adds the unit-level probe that applyStatePreservation's preserve-always row is inert on a resyncing write, and an over-preservation guard that an empty project is never inflated. Refs #3871 * feat(#3871): make the STATE.md pre-write snapshot mandatory via open()/rebuild() ADR-3473 §8.6. StatePreservationInput's nullable preFm and the always-present preFmSnapshot were the same extractFrontmatter call, one of them nulled on resync — a policy flag baked into a snapshot. Both collapse into a single StateTransaction whose snapshot cannot be absent: openStateTransaction() applies preservation, rebuildStateTransaction() does not, and both carry the snapshot because the reporting phase needs it either way. An absent snapshot is now a construction failure; an empty one stays legal, because that is what a document with no parseable frontmatter honestly has. writeStateMd requires a rebuild transaction, which types ADR-3408 §8.3's closed exception list at both call sites (state sync, health --repair) instead of matching them as strings in a ratcheted baseline. Fixes the dropped curated progress block: an all-zero or absent derived total set is an unmeasured scan, not a measurement, so the curated block stands. Also fixes two defects surfaced while building — preserve-always reported a mutation even when it restored an identical value, and it re-entered the curated object by reference, which would alias the snapshot the next phase diffs against. Refs #3871 * fix(#3871): close the three remaining subsumed defects and restore the arm the type does not replace Review of the first two commits found four things. The guard shrink deleted the seam-bypass axis whole, but only its writeStateMd( arm became redundant. Its other arm catches a call site re-assembling syncStateFrontmatter + applyPostSyncPreservation instead of the owned composition, which the transaction type does not make unrepresentable and which #3469 found live. Restored as findCompositionBypasses, terminal rather than ratcheted. Three of the four issues this phase claims were untouched. All three are the epic's own shape and are fixed at the seam: current_phase_name is reasserted from the curated value when the caller names none, and cmdStateJson stops carrying a hand-maintained list parallel to FIELD_CLASSIFICATION and projects it instead. The construction failure that is the point of this phase had no test. Every enumerated matrix row now has one, including the measured-versus-unmeasured coercion boundary and a seeded property that no curated key is ever dropped. ADR-3473 §8.6 said the guard 'keeps only its raw-write check'. Verified against next: there was no raw-write check, and four other checks it does not name. Amended in place with the evidence. ARCHITECTURE.md separately advertised a preservation policy the code had deleted. Refs #3871 * fix(#3871): do not let the unmeasured-scan rule block an explicitly-requested resync The remote matrix caught over-preservation, the failure this phase's own negative space says must not happen. state update Progress re-derives the block from the body the caller just rewrote; on a project with no phase dirs the derivation yields zero totals, the unmeasured rule read that as 'the scan measured nothing', and the stale curated percent was restored over the resync the user asked for. preserve-always already said what the missing condition was: never overwrite unless the caller explicitly names this field. explicitProgressField carries it and is derived from shouldResyncStateProgress, not set by hand at a call site, so it cannot drift from what the caller asked for. Two defects found in the same mechanism and fixed with it. readModifyWriteStateMd enumerates its option keys, so a new option was silently dropped rather than rejected. And the raw-write axis captured its first argument up to the first comma, which lands inside a nested path.join, so a write to a STATE.md literal was invisible to it — the prove-it-can-fail test caught that one immediately. No test assertion was weakened; all three frontmatter rows encode #3242, #1969 B3 and #1972 and stand unchanged. Refs #3871 * docs(#3871): record why the raw-write check is kept, not why it was named The amendment justified findRawStateWrites as 'written because §8.6 requires it to exist', which is cargo-culting the contract and would have been the wrong reason to keep anything. The real reason is that writeStateMd acquires the STATE.md lockfile and a raw fs.writeFileSync acquires nothing, so this is a lock bypass and lost-update is the #500/#905/#1230 family — and after this phase it is the one reachable path into the file that nothing else covers. Also records why ADR-3408 §8.6's deletion of the 'clear' policy is not the precedent it looks like: 'clear' was dead vocabulary in a closed enum, this is coverage of a reachable path. Refs #3871 * chore(#3871): backfill changeset PR number --------- 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.