chore(#2143): withSection bounded-mutation seam + phase.cts migration — Phase 2 (#2250)

* chore(#2143): bounded-mutation seam (withSection/withPhaseSection) + phase.cts migration — Phase 2

Phase 2 of epic #2143 (ADR-2143 §4): add a bounded-mutation primitive so a
per-phase ROADMAP edit is structurally confined to that phase's own section,
and migrate the phase-scoped mutation sites in `phase.cts` onto it.

- `src/markdown-sectionizer.cts`: `withSection(content, target, edit, opts?)` —
  resolves a section via `collectSection` and applies `edit` to ONLY that
  section's body, re-serialising via `replaceSection`. The edit callback sees
  only the section body, so any regex it runs is physically confined.
- `src/roadmap-parser.cts`: `withPhaseSection(content, phaseId, edit)` —
  resolves a phase's `### Phase N` detail-section heading via the #2121
  phase-id source and delegates to `withSection`. Heading match is anchored to
  the heading start (a sibling phase whose title mentions the number is not
  hijacked) and bounds at the next ATX heading of any level (`levelBounded:false`).
- `src/phase.cts`: `mutateMilestonePhase`'s plan-count and per-plan-checkbox
  writes now route through `withPhaseSection` — structurally retiring the
  #2130 / #2067 / #2080 boundary-crossing class for these sites. The phase-LIST
  checkbox is intentionally left milestone-slice-scoped (it lives outside any
  `### Phase N` detail section). Cross-phase renumbering is untouched.
- Property test (fast-check): editing phase k leaves every sibling section
  byte-identical; regression tests for title-collision + mixed heading depth.

Behaviour-preserving (verified by old-vs-new differential runs on real
fixtures). Extend-never-mutate (ADR-2143 §2). Registration: CONTEXT.md +
docs/INVENTORY.md export lists.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* chore(#2243): backfill changeset PR number (#2250)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Tom Boucher
2026-07-13 20:39:22 -04:00
committed by GitHub
parent d49ac81306
commit efd04716da
8 changed files with 500 additions and 23 deletions

View File

@@ -465,7 +465,7 @@ Full listing: `gsd-core/bin/lib/*.cjs`.
| `legacy-cleanup.cjs` | Detect and remove leftover get-shit-done-cc artifacts; exports `planLegacyCleanup` (pure scan) and `applyLegacyCleanup` (thin IO applier) that root out stale files from the old package across every GSD-managed runtime config directory (#607) |
| `loop-host-contract.cjs` | Generated Loop Host Contract — 12 loop points, per-step agent roles, and core artifacts for the five-step pipeline (discuss/plan/execute/verify/ship); emitted by `scripts/gen-loop-host-contract.cjs --write` (ADR-894 §3); consumed by `gen-capability-registry.cjs` |
| `loop-resolver.cjs` | Loop Extension Point resolver — ADR-857 phase 3c/6 registry-consuming query; given a canonical loop point, filters `byLoopPoint` by resolved Capability State plus config activation (`when` key traversal with prototype-pollution guard), returns `{ point, activeHooks, rendered }` envelope; `resolveLoopHooks` and `renderLoopHooks` are pure (no I/O); command surface: `gsd-tools loop render-hooks <point> [--config-dir <path>]` |
| `markdown-sectionizer.cjs` | Canonical markdown-structure parsing seam (ADR-1372, epic #1372) — pure, Node built-ins only; exports `stripFencedCode` (CommonMark-correct fence stripper, CRLF-safe), `tokenizeHeadings` (ATX headings outside fenced blocks), `collectSections`/`collectSection` (line-by-line section collection with `bodyStart`/`bodyEnd` offsets), `iterateBullets` (dash/checkbox/numbered markers), `extractTaggedBlocks` (inner text of `<tag>…</tag>` blocks, caller decides fence-stripping), and `replaceSection` (pure character-offset body splice for read-modify-write callers); foundation for T0–T7 migration tiers retiring 8+ ad-hoc parsers |
| `markdown-sectionizer.cjs` | Canonical markdown-structure parsing seam (ADR-1372, epic #1372) — pure, Node built-ins only; exports `stripFencedCode` (CommonMark-correct fence stripper, CRLF-safe), `tokenizeHeadings` (ATX headings outside fenced blocks), `collectSections`/`collectSection` (line-by-line section collection with `bodyStart`/`bodyEnd` offsets), `iterateBullets` (dash/checkbox/numbered markers), `extractTaggedBlocks` (inner text of `<tag>…</tag>` blocks, caller decides fence-stripping), `replaceSection` (pure character-offset body splice for read-modify-write callers), and `withSection` (resolve a section by heading/predicate and run an edit callback against ONLY its body, splicing the result back — ADR-2143 §4 bounded mutation); foundation for T0–T7 migration tiers retiring 8+ ad-hoc parsers |
| `markdown-table.cjs` | Canonical GFM table model + `TABLE_SCHEMAS` registry seam (ADR-2143, epic #2143) — pure, Node built-ins only; exports `parseMarkdownTable(sectionText) → Result<MarkdownTable>` (parses the first GFM pipe table, typed parse errors for ragged/malformed rows rather than silent coercion), `MarkdownTable` (`{columns, rows}`, rows addressed by column name), `Result<T>` (`{ok:true,value}\|{ok:false,reason}` — distinct from command-routing-hub's dispatch `Result`), `TABLE_SCHEMAS` (canonical column-header variants for `RoadmapProgress`/`RequirementsTraceability`/`QuickTasks`/`Security` tables), and `matchTableSchema(columns) → {id,label}\|null` (resolves parsed headers back to a canonical schema); consumed by `phase-lifecycle.cts`'s `deriveProgressFromRoadmap` (fixes #2137, the 5-column milestone-grouped Progress table) |
| `milestone.cjs` | Milestone archival, requirements marking |
| `model-catalog.cjs` | CJS adapter over the shared model catalog JSON; exports canonical runtime tier defaults, agent profile maps, alias maps, and routing metadata for all CLI consumers |