a27cb6b2fa
* enhance(#4406): the lazily-read remainder and the artifact templates ADR-4139 Decision 3, Phase 6 of the #4139 Compact Content epic. Covers stream 1b (gsd-core/workflows/<name>/{modes,steps,templates}/*.md) and stream 4 (gsd-core/templates/**) with a variant-swap mechanism, confirmed with the user: two independent, complete files per covered path (canonical + .compact.md sibling), with the gate picking which one gets Read at the call site. This is a different shape from Phase 5's spine+detail partition, and is safe here specifically because these files are already reached only by a runtime Read — a missed Read already means zero overlay content today, with or without workflow.compact_content, so selecting between two independently-complete files introduces no new failure mode (documented in gsd-core/references/compact-content-gate.md's new "Streams 1b and 4" section). Disposition, after inspecting every candidate rather than trusting a byte-size threshold (same rigor Phase 5 applied to review.md): - Stream 1b: 1 of 78 files compacted (help/modes/full.md, a user-facing reference doc emitted verbatim, not orchestrator instruction). The other 9 size-threshold candidates are dominated by fail-closed guards, exact CLI invocations, or output-format contracts (AskUserQuestion blocks) — recorded not-worth-compacting, same reasoning as Phase 5's review.md. - Stream 4: a ground-truth reachability audit replaced the initial size-only candidate list. Two files (summary.md, user-setup.md) got compact variants; a third (spec.md) was drafted, then dropped after discovering its only two call sites are eager @-includes, not a runtime Read — stream-1 material hiding under gsd-core/templates/, not stream-4's actual mechanism. summary.md itself has 3 eager call sites and only 1 genuine runtime-Read call site (execute-plan.md); only that one was wired, so the compact variant's savings apply to the sequential single-plan execution path only. - Discovered while auditing reachability: 12 gsd-core/templates/** files with zero references anywhere in workflow/agent/command prose, compiled source, or tests — dead scaffolding predating this phase. Deleted in this same PR per this repo's no-defer policy, after re-verifying against a computed path.join(...) pattern (not just a plain-string search) that nearly caused two genuinely load-bearing templates (user-profile.md, dev-preferences.md) to be misclassified as dead. New checker (tests/helpers/compact-content-variant.cjs): registration, reachability, protected-content-preserved, size-smaller — replacing Phase 3/5's disjointness/completeness checks, which assume a partition rather than two deliberately-overlapping documents. The reachability check's own "unprefixed match" guard had a real bug (rejected the repo's own `~/.claude/gsd-core/...` convention), caught by running it against the already-wired help/modes/full.compact.md pair rather than only synthetic fixtures — fixed to anchor on the nearest `gsd-core` path segment instead. Template consumer parity (tests/compact-content-template-variant-parity.test.cjs): proves each compact variant's `## File Template` fenced block — the actual output-format contract a generated SUMMARY.md/USER-SETUP.md is parsed against — is byte-identical to the canonical file, then runs the one real deterministic consumer (gsd-core/bin/lib/coverage.cjs's classifyContent, backing `gsd-tools uat classify-coverage`) against content built from that shared contract. Added a sibling benchmark script (scripts/benchmark-compact-content-variants.cjs) rather than extending the existing spine/detail one — different data shape, and the existing script's own contract deliberately isolates it from a test-only helper's shape changing. Emitted-drift acknowledgement: not needed. Every changed/added path in this diff is hand-authored and present in the diff itself, so diffEmitted's attribution loop resolves `via` to the path's own source before reaching the ack-lookup branch (same reasoning Phase 5 verified for its own diff). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * enhance(#4406): address code-review findings on the variant-swap gate - docs/CONFIGURATION.md and gsd-core/references/planning-config.md's workflow.compact_content entries described only the spine+detail mechanism (Phase 5) and were missing this phase's variant-swap mechanism and its benchmark:compact-content-variants script entirely — required since this PR's changeset is type Added (CLAUDE.md's "Missing Docs for Changesets" rule). Both now describe both mechanisms and which call sites are wired. - Added the missing RED^-1/no-op fixture for checkProtectedContentPreserved: a canonical file with zero <!-- gsd:protected --> blocks must be a no-op, not a violation — the only branch of that function the existing fixtures didn't exercise. - Collapsed findCompactFiles/findMarkdownFiles in tests/helpers/compact-content-variant.cjs into one findFilesWithSuffix helper — the two were identical recursive walks differing only in the extension predicate (minor Duplicated-Code finding). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4406): restore copilot-instructions.md, a false-positive dead-template classification gsd-test caught this, not static analysis: 10 real failures in tests/copilot-install.test.cjs, tests/installer-migration-install.integration.test.cjs, and tests/repo-layout.test.cjs — all downstream of bin/install.js's Copilot install path, which does fs.readFileSync(path.join(targetDir, 'gsd-core', 'templates', 'copilot-instructions.md')) after copying gsd-core/templates/** into the target project, then merges it into both .github/copilot-instructions.md and (local installs) AGENTS.md. The reachability audit that flagged this file as dead checked src/*.cts and gsd-core/bin/*.cjs but never the repo-root bin/install.js — a separately maintained installer bundle outside the src/-to-gsd-core/bin/lib/ compiled-output convention. The fs.existsSync guard around that read degrades to a silent skip rather than a crash when the template is missing, which is why this surfaced only once the real E2E install test ran, not from any static check. Re-verified the remaining 11 deleted filenames against bin/install.js specifically (plain substring and quoted-filename search) before trusting that list — all 11 have zero hits there, confirmed dead by the same standard this one file failed. Regenerated the installer emitted-tree goldens (tests/fixtures/install-tree/*.json) to reflect the restored file, and corrected the "Removed" changeset (jolly-lynx-sprint.md) and the phase design doc from 12 to 11 deleted files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Emitted-Drift-Ack-Growth: execute-plan.md — call-site wiring for the summary.md and user-setup.md .compact.md variants Emitted-Drift-Ack-Growth: help.md — call-site wiring for full.compact.md, same variant-resolution rule * docs(#4406): backfill changeset PR numbers Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4406): resolve removed-but-needed lint findings on the dead-template deletion CI's own full-test matrix (not gsd-test's matrix, which does not run this check) caught 4 more false-positive dead-template classifications via tests/removed-but-needed-lint.test.cjs / scripts/lint-removed-but-needed.cjs — a literal, word-boundary basename check across .github/workflows/, gsd-core/, and docs/ (excluding docs/adr/** and docs/research/**) for every file a PR deletes. It has no semantic awareness, so a deleted template's basename colliding with something else entirely still fires: - claude-md.md: gsd-core/templates/README.md had a stale table row claiming /gsd-profile reads this template to generate CLAUDE.md. Verified false (no code reads it anywhere, same search that already covered bin/install.js) — fixed the row to *(inline)*, matching every other command-generated artifact in that table. File stays deleted. - codebase/testing.md: collided with docs/guides/testing.md, an illustrative example row in docs-update.md's sample output table (an unrelated real generated-docs path). Swapped the example topic to "contributing" — the row is illustrative, any topic works. File stays deleted. - codebase/architecture.md, codebase/stack.md: collided with docs/reference/ planning-artifacts.md's directory listing of a user's own generated .planning/codebase/architecture.md and stack.md output — the same semantic mismatch already investigated and dismissed as unrelated earlier in this phase's audit, now caught by a gate instead of judgment. That listing repeats across 5 locale copies of the doc. - continue-here.md: collided with the real .continue-here.md pause-work artifact, referenced across 15+ locale and workflow files. For the last two, the lint's own error message offers "restore the file or update every consumer in the same commit." Rewording 15+ files across languages I cannot verify translation quality for, to shave 2 already-tiny templates that were merely presumed dead, is disproportionate to this PR's actual scope — restored codebase/architecture.md, codebase/stack.md, and continue-here.md instead, and corrected docs/ARCHITECTURE.md's Templates section accordingly. Final confirmed-dead set: claude-md.md, codebase/concerns.md, codebase/conventions.md, codebase/integrations.md, codebase/structure.md, codebase/testing.md, debug-subagent-prompt.md, discovery.md — 8 files, down from the original 12. Verified locally: GSD_REMOVED_BUT_NEEDED_BASE=next node scripts/lint-removed-but-needed.cjs now passes clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Emitted-Drift-Ack-Growth: docs-update.md — swapped an illustrative example-table topic (testing -> contributing) to avoid a removed-but-needed basename collision with the deleted codebase/testing.md template; net +10 bytes * fix(#4406): split codex-config.test.cjs to fix a genuine Windows CI timeout Root cause of the `full test (windows-latest, 24, shard 2/3)` failure the user asked to be actually fixed, not just re-run past: PR #4497 (landed 2026-09-07, one day before this PR's CI run) isolated tests/codex-config.test.cjs into its own dedicated chunk because its measured weight (17.87, ~45% of the post-cut Windows budget) made it unsafe to share a chunk with any other file. That isolation was necessary but not sufficient — even alone, with zero companion-file contention, the file's real Windows execution time sits right at the 600s per-chunk ceiling. Two independent CI runs on two unrelated PRs (this one and #4154) were both killed within ~1.4s of the identical 600000ms mark — not random contention, a deterministic near-miss the isolation fix couldn't address because it never reduced the file's own cost, only removed the risk of a companion file's cost stacking on top of it (which the PR #4497 comment explicitly anticipated: "if a future profiling pass genuinely speeds up codex-config.test.cjs itself, this isolation can be revisited"). The file itself explains why it's this heavy: 11,262 lines / 433 tests / 79 describe blocks, accumulated over dozens of bug-fix PRs (#2695, #2760, #3245, #3285, #3346, #3426, #3427, #3562, #3566, #3582, #3808, and more), several of which are explicitly documented as "folded" in from separate files that were never actually split back out ("Verified non-duplicate against both the pre-existing target and the other three folded sources"). Split into 4 files by top-level AST statement boundaries (never a naive column-0 regex — an early attempt at that overcounted 79 apparent "describe(" matches when only 21 are genuinely top-level; the rest are nested inside a handful of large folded-in blocks, which a regex can't tell apart from real top-level statements). Verified lossless twice: the split script asserts byte-for-byte reconstruction of every source character, and independently, total test()/describe() call counts match exactly between the original file and the sum across all 4 new files (433/79 both sides). Each new file carries the complete original shared header (imports/helpers) for safety; per-file unused-import warnings from that duplication are resolved via ESLint-precise alias renames (`{ foo: _foo }`, the standard form for an intentionally-unused destructured binding — never a bare `{ _foo }`, which would destructure a different, nonexistent property). No change needed to scripts/run-tests.cjs's ISOLATED_HEAVY_FILES or its pinned test in tests/run-tests-harness.test.cjs: the file that keeps the original name (tests/codex-config.test.cjs) is now only ~28% of the original's size and safely isolated in its own chunk as before; the other three new files re-enter normal weight-balanced packing, none individually close to disproportionate. Confirmed no other file hardcodes the hardcoded filename anywhere that would silently stop these tests from running (the CI test-selection scripts determine scope algorithmically, not by literal filename). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
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.