3b18eff388
* test(#3872): failing-first regressions for what a command reports it wrote Pins ADR-3473 §8.7 at the consumer's output. state planned-phase advances current_phase on disk and never reports it, and reports progress.total_plans which reconcileReportedFields silently drops because it cannot resolve a dotted key against nested frontmatter. Both directions of #3818's own before/after diff, reproduced against the real CLI. Also pins the two properties the change must not break: a fully-failed patch still reports an empty updated array, which is what state.cts:607's success boolean depends on; and two content-identical writes differ in last_updated alone. That second one measured state_head NOT to be ambient — it is recomputed every write but only changes when git HEAD moved — so the provenance exclusion is a one-element set, with a companion test pinning that state_head does change when HEAD moves. Refs #3872 * feat(#3872): derive what a command reports from the transaction diff ADR-3473 §8.7. reconcileReportedFields compared the transform's own output against persisted bytes and then filtered what preservation had restored by its FIELD_CLASSIFICATION policy. Both are replaced by one comparison of persisted against the pre-write state the transaction already holds, surfaced to the command through the same caller-allocates out-param idiom divergedFields established. Both of the old directions fall out of that single comparison: a field the transform reported but the pipeline discarded is persisted-equals-snapshot and drops out, and a field nobody reported but the write moved is different and appears. The classification filter is deleted, not relocated — no policy test remains anywhere in the reporting path. Reporting is at dotted-leaf granularity, enumerated from the progress.* rows FIELD_CLASSIFICATION already declares rather than by walking user data to arbitrary depth. That closes a live defect: plannedPhaseCore already pushed progress.total_plans and reconcileReportedFields silently dropped it, because a flat hasOwnProperty cannot resolve a dotted key against nested frontmatter. Current Position was lost the same way and is fixed in the same place. The exclusion is one field, last_updated, and it is by provenance rather than by classification: it is the only field measured to change on every write regardless of content. state_head was measured NOT to qualify — it is recomputed every write but only changes when git HEAD moved. Without that exclusion state.patch's success boolean, which is updated.length > 0, would be permanently true and a fully-failed patch would report success. Refs #3872 * fix(#3872): cover the matrix, and close a prototype-chain read the coverage found Review found 20 of 29 test-matrix rows uncovered. Covering them found two real defects rather than merely documenting the intended behavior. bodyLabelFor read FRONTMATTER_KEY_TO_BODY_LABEL with a bare bracket index on a plain object literal, so a field named __proto__, constructor or toString resolved to the inherited prototype member and leaked a non-string value into the updated array. Fixed with an own-property check, mirroring the discipline resolveFrontmatterPath already had. The security-relevant matrix row proved it before the fix. applyPostSyncPreservation still carried its own inline copy of the value comparison alongside the new stateFieldValuesDiffer, which is two live copies of one rule introduced by the epic that exists to remove them. Routed through the single owner. Adds the fast-check property that a field appears iff its persisted value differs from the snapshot, the string-versus-number representation boundary, dotted paths into missing parents and into scalars, deleted and added keys, and the preserve-if-placeholder pair that proves no classification test survives in the reporting path. Refs #3872 * docs(#3872): document the transaction diff on the write path The updated array's contract belongs where the write path is described. States the iff rule, leaf granularity, the single provenance exclusion and why state_head is deliberately not one, and closes with the consequence a reader actually needs: these arrays are longer than they used to be, because they used to under-report. Refs #3872 * fix(#3872): a derived leaf materializing is not a change the caller made The remote matrix caught 17 failures with two causes. The substantive one is that progress is source: disk, and the disk cannot change during a STATE.md write — the write only touches STATE.md. So a progress block appearing where the snapshot had none is the scanner populating a document that had never been synced. The bytes moved; nothing the caller did moved them. That is the same shape as last_updated one level up, so the provenance rule is generalized rather than special-cased: a field appears iff its persisted value changed for a reason attributable to this write's action, and two cases are not attributable — a field stamped unconditionally on every save, and a declared derived leaf materializing from a source that did not change. Crucially this does not consult the preservation policy, so the filter §8.7 deleted stays deleted; it uses the declared leaf set to know which keys are derived. This had a second production consumer the earlier review concluded did not exist: cmdStatePlannedPhase gates publishStateContract on updated.length, and its own inline comment predicts exactly this failure. A no-op call was publishing state.json. advancePlanNoOpDoesNotPublish genuinely encoded pre-§8.7 behavior and moves. E2 and E6 had carved out total_plans as reportable-on-materialization, an error introduced earlier on this branch rather than a pre-existing pin, and are corrected with it. Refs #3872 * chore(#3872): 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.