7ca8011cd9
* refactor(#1373): add markdown-sectionizer seam (ADR-1372 T0) Establishes the canonical markdown-structure parsing seam per ADR-1372. No existing parsers are modified; this is the foundational T0 tier only. - docs/adr/1372-markdown-sectionizer-seam.md: Accepted ADR defining the seam interface, the tiered migration plan (T0-T7), and the prohibition enforcement approach (no-adhoc-markdown-parsing ESLint rule in T7). - src/markdown-sectionizer.cts: Pure module, Node built-ins only. Exports: stripFencedCode (CommonMark-correct state machine ported from uat-predicate.cts _stripFencedBlocks, CRLF-safe, unterminatedFence signal), tokenizeHeadings (ATX headings outside fenced blocks), collectSections (line-by-line predicate-driven section collection), collectSection (single named section, levelBounded stop, optional stripFences), iterateBullets (dash/checkbox/numbered + continuation). - tests/markdown-sectionizer.test.cjs: 54-test behavioral suite covering the parser QA matrix (LF/CRLF, Unicode headings, headings-inside-fences, unterminated fences, nested levels, all bullet markers, continuation lines, empty/non-string input) plus 4 fast-check property tests (idempotence, output shape, never-throws, length monotonicity). - CONTEXT.md: Markdown Sectionizer glossary entry added (PR review gate). Tests: 54 pass, 0 fail. Existing adr-parser + uat-passed tests: 22 pass. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * refactor(#1373): add extractTaggedBlocks + replaceSection to seam; register inventory - src/markdown-sectionizer.cts: extend Section type with bodyStart/bodyEnd offsets; add extractTaggedBlocks(content, tagName) (inner text of <tag>…</tag> blocks, tagName regex-escaped, caller decides fence-stripping) and replaceSection(content, section, newBody) (pure character-offset splice for read-modify-write callers); update collectSections/collectSection to populate bodyStart/bodyEnd. - tests/markdown-sectionizer.test.cjs: add 33 new behavioral tests for extractTaggedBlocks, replaceSection, and a DEFECT.GENERATIVE-FIX parity guard that asserts stripFencedCode and uat-predicate's _stripFencedBlocks agree on a shared 9-item corpus; documents the known 4-space-indent divergence. - docs/adr/1372-markdown-sectionizer-seam.md: list extractTaggedBlocks and replaceSection in §"The seam". - CONTEXT.md: update ### Markdown Sectionizer glossary entry with the two new exports. - docs/INVENTORY.md: add markdown-sectionizer.cjs row (alphabetically between loop-resolver and milestone). - docs/INVENTORY-MANIFEST.json: regenerated via gen-inventory-manifest --write. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(#1373): clear no-unsafe-assignment + unused-var lint in markdown-sectionizer Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(#1373): correct section offset/round-trip + CommonMark heading/fence edges; register eslint coverage FIX 1 (CRITICAL): Enforce content.slice(bodyStart,bodyEnd) === body invariant in both collectSection and collectSections. bodyEnd is now bodyStart + body.length instead of the raw stop-line offset, eliminating the trailing-newline overcounting that caused replaceSection to drop separator newlines (## A\nbody## B gluing bug). FIX 2 (MED): tokenizeHeadings now accepts ≤3-space indent (CommonMark §4.5) and empty ATX headings (## / ## ), text=''. 4-space indent correctly excluded. FIX 3 (MED): collectSection gains stopAtLevel option — stops at the next heading whose level ≤ stopAtLevel, independent of the opener's level. Enables state.cts ## sections that also stop at ### without abusing levelBounded. FIX 4 (MED): Backtick fence opener info string must not contain a backtick (CommonMark). Applied in both stripFencedCode and tokenizeHeadings fence state machines. Tilde fences unaffected. FIX 5 (LOW): "byte offset" → "character (string-index) offset" in HeadingToken / Section doc comments. FIX 6 (LOW): extractTaggedBlocks doc comment documents nested-tag non-support; test locks the non-greedy close-at-first-</tag> behavior. FIX 7: Add gsd-core/bin/lib/markdown-sectionizer.cjs to eslint.config.mjs ignores so tests/551-eslint-bin-lib-coverage.test.cjs passes (3/3). Tests: 107 pass / 0 fail (was 87; +20 new tests for FIX 1–4, 6). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(#1373): gitignore tsc-built markdown-sectionizer.cjs (ADR-457 build-at-publish) The seam's compiled artifact must be a build-at-publish output like every other src/*.cts->bin/lib/*.cjs module (decisions, core, state, ...), not a committed file. Add it to the ADR-457 ignore list and untrack it; build:lib/CI regenerate it. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Architecture Decision Records
This directory contains Architecture Decision Records (ADRs) for GSD.
Each ADR documents one architectural decision: what was decided, why, and what consequences follow. ADRs are append-only. Amendments extend existing ADRs with a dated section rather than replacing them.
Naming Convention
New ADRs use issue#-prefix slug naming:
docs/adr/<issue#>-<kebab-slug>.md
Examples: 3485-adr-prd-naming-convention.md, 3464-review-default-reviewers.md.
Why
Two developers computing "next ADR number" locally against main will independently pick the same integer and both ship. The collision is already on disk — 0010-* exists twice and 0011-* exists three times. GitHub issue numbers are server-assigned and atomic: the moment you open an issue, that number is reserved globally. Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — two PRs that each use a distinct issue# as their ADR prefix never collide. Same shape, same solution.
Legacy ADRs
Files 0001-* through 0011-* are preserved as immutable historical record. The duplicate 0010-* and the three-way 0011-* are documented residue of the old local-compute convention — not patterns to imitate. Do not renumber them.
Full process
See CONTRIBUTING.md — "Proposing an ADR or PRD" for the end-to-end workflow: opening the issue, waiting for approval, naming the file, and submitting the PR.
Index
| ADR | Title | Status |
|---|---|---|
| 0001-dispatch-policy-module.md | Dispatch policy module as single seam for query execution outcomes | Accepted |
| 0002-command-contract-validation-module.md | Command Contract Validation Module | Accepted |
| 0003-model-catalog-module.md | Model Catalog Module as single source of truth for agent profiles and runtime tier defaults | Accepted |
| 0004-worktree-workstream-seam-module.md | Planning Workspace Module as single seam for worktree and workstream state | Accepted |
| 0005-sdk-architecture-seam-map.md | SDK Architecture seam map for query/runtime surfaces | Superseded by ADR-0174 |
| 0006-planning-path-projection-module.md | Planning Path Projection Module for SDK query handlers | Accepted |
| 0007-sdk-package-seam-module.md | SDK Package Seam Module owns SDK-to-get-shit-done-redux compatibility | Superseded by ADR-0174 |
| 0008-installer-migration-module.md | Installer Migration Module owns install-time upgrade safety | Accepted |
| 0009-shell-command-projection-module.md | Shell Command Projection Module owns runtime-aware OS command rendering | Accepted |
| 0010-file-operation-engine-module.md | File Operation Engine Module owns safe runtime/config file mutations | Proposed |
| 0010-skill-surface-budget-module.md | Skill Surface Budget Module — earlier draft superseded by ADR-0011 | Superseded by 0011 |
| 0011-skill-surface-budget-module.md | Skill Surface Budget Module owns install-time profile staging and runtime surface control | Accepted |
| 0011-review-default-reviewers.md | Review default-reviewers selection policy for /gsd:review | Accepted |
| 0011-review-default-reviewers-prd.md | PRD for review.default_reviewers feature (#3464) | Reference |
| 0012-command-routing-hub.md | CommandRoutingHub as single dispatch seam for CJS command families | Superseded by ADR-0174 |
| 15-autonomous-cross-ai-convergence.md | Cross-AI plan convergence via existing orchestration commands | Proposed |
| 22-plan-drift-guard.md | Plan-vs-codebase drift guard: defaults and symbol-resolver seam | Proposed |
| 3524-cjs-sdk-hard-seam.md | CJS↔SDK hard seam — single canonical owner per responsibility (#3524) | Superseded by ADR-0174 |
| 3660-runtime-artifact-layout-module.md | Runtime Artifact Layout Module owns per-runtime artifact placement | Proposed |
| 0174-retire-gsd-sdk-package-boundary.md | Retire @opengsd/gsd-sdk package boundary — single-runtime collapse | Accepted |
| 452-eslint-lint-harness.md | Adopt standard ESLint flat-config lint harness; retire homegrown regex scanners | Accepted |
| 456-test-rigor-architecture.md | Test-rigor architecture — deterministic scheduling, antagonistic tier, typed-surface mandate, delete-bad-tests policy | Accepted |
| 457-generated-cjs-single-source.md | Collapse hand-written CJS to generated single-source | Proposed |
| 660-release-from-next-head.md | Release from the head of next; immutable release tags; @next dist-tag as the RC surface | Proposed |
| 58-runtime-install-policy-module.md | Runtime Install Policy Module owns the typed install-plan projection | Accepted |
| 766-claude-code-plugin-manifest-module.md | Claude Code Plugin Manifest Module owns the projection of gsd-core surfaces onto the Claude Code plugin contract | Accepted |
| 1016-runtime-capability-descriptor.md | Runtime Capability Descriptor | Proposed |
| 1235-descriptor-driven-agent-conversion-migration.md | Migrate agent conversion to the descriptor-driven install path (parity + per-runtime cutover) | Proposed |
Seam map
ADR 0005 is the top-level SDK seam index. It references per-seam ADRs and states the narrow-waist principle each seam follows. Use it as the entry point for understanding SDK module ownership.
ADR 0006 documents how SDK query handlers project planning paths (cwd → effectiveRoot → .planning/<project>/...). Cross-reference with the Planning Workspace Module (ADR 0004) for workstream pointer policy.
ADR 0008 documents the Installer Migration Module for safe install-time moves, removals, config rewrites, and user-data preservation.
ADR 0009 documents the Shell Command Projection Module seam for runtime-aware projection of installer-owned command text and projection IR.
ADR 0010 documents the File Operation Engine Module seam for converging installer/migration/planning file mutation safety policy, and its relationship to ADR 0009 hook-command ownership policy.
ADR 0011 documents the Skill Surface Budget Module for install-time skill/agent
profile staging (--profile=<name>, .gsd-profile marker, requires: closure)
and the Phase 2 runtime /gsd:surface command for cluster-level enable/disable
without reinstall.