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* feat(#3840): generate docs/FEATURES.md from per-feature fragments docs/FEATURES.md was hand-maintained, and every feature PR wrote into two shared mutable cells: the '### N.' heading whose integer was hand-allocated at authoring time, and the hand-maintained table of contents. Concurrent PRs all picked the same next integer, and two PRs adding differently numbered features still collided on the TOC. #3831 was renumbered 165 -> 166 -> 167 -> 168 across successive rebases, each collision also costing a full matrix verification run because the sha-keyed pass marker dies with the rebase. Mechanism: one fragment per feature at docs/features/<slug>.md carrying id/title/group (and an optional order) in frontmatter, consolidated by scripts/gen-features.cjs --write|--check into a marker-delimited region of docs/FEATURES.md that holds BOTH the TOC and every section body. Group headings and their order are derived too - a group sorts by its lowest-ordered member - so there is no shared registry to edit either; optional per-group prose lives in docs/features/_groups/<slug>.md. A contributor adds exactly one new file. Wired into regen:derived and lint:generated-sync alongside the eight existing generators, matching gen-adr-index.cjs's CLI shape and typed-REASON reporting. Migration froze all 168 existing numbers verbatim: identical section set, identical order, identical bodies. Two defects found in the tree are fixed inline rather than carried forward - the '## Related' block had been spliced into the middle of the document, orphaning §142's Reference line, and four inbound anchors were already broken on next (FEATURES.md#runtime-identity in two files, and #143-spec-phase-edge-completeness-probe off by one). Since the repo has no link checker, --check now validates every inbound FEATURES.md#anchor by resolved target, so that class cannot ship silently again; locale FEATURES.md files resolve elsewhere and stay out of scope. Refs #3840 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#3840): carry upstream §69 delta into its fragment and harden the generator Review found section 69 missing '[--strict]' and REQ-STATE-05/06 versus origin/next. Root cause was a stale base, not extraction loss: those lines landed in394bf384b(#3844) AFTER this branch forked at63abcface, and 'git diff63abcfaceorigin/next -- docs/FEATURES.md' is exactly that hunk. Merging origin/next auto-applied the hunk into the GENERATED region, which --check immediately reported as stale; the delta is now carried in docs/features/statemd-consistency-gates.md and regenerated from there. --write is now fail-closed. It previously rendered the region even with violations outstanding, warning only on stderr and exiting 0, so a '--write && git commit' chain could commit a FEATURES.md carrying two colliding sections. It now refuses and exits 1; --force is the explicit override and says so in the report. The test that pinned the old behavior now pins the refusal, plus the --force override and its scoping. Marker forgery is rejected at two layers. A fragment body containing '<!-- FEATURES:START' or '<!-- FEATURES:END' is a typed body_forges_region_marker violation (fragments and group notes alike), and spliceIntoFeatures anchors the end boundary with lastIndexOf instead of indexOf, so a marker that reaches the document by any other route can only make the generated region grow, never shrink. Matching is on marker PREFIXES, so a decorated variant comment cannot slip past. Symlinked corpus entries are refused with a typed dirent_not_regular_file rather than read. A fork PR could otherwise commit docs/features/evil.md as a symlink to any readable path and have the generator inline those bytes into the committed docs/FEATURES.md on the next regen. Equivalence re-verified with a method that cannot cancel out. The first check extracted both operands with the same body-normalising helper, so anything that helper dropped was dropped on both sides. The replacement runs two independent passes: a global content-line multiset diff with no per-section logic at all (0 gained, 19 lost, all 19 the stale hand-written mini-TOC links this change deliberately deletes), and a per-section byte-exact body diff carrying a coverage assertion that fails loudly per file when the extractor accounts for fewer lines than the file contains. That assertion caught two blind spots in the checker itself. 168/168 sections present, order identical, one intended body difference (§142 regains the Reference line orphaned by the misplaced '## Related' block). Refs #3840 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#3840): backfill changeset PR number Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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id, title, group
| id | title | group |
|---|---|---|
| 165 | Opt-In Parallel Reviewer Lanes | v1.7.0 Features |
Command: /gsd-review, /gsd-plan-review-convergence
Config key: review.parallel_lanes (default false)
Purpose: Reviewer lanes within one review pass have no data dependency on each other — they all inspect the same immutable plan snapshot — but were dispatched strictly one at a time, so a pass with Codex, Gemini and Claude cost roughly the sum of three long reviewer calls. The serialization was a deliberate, unconditional protection against provider rate limits, which made it a global policy imposed on users whose providers could comfortably take concurrent requests, or who run local model servers with no limits at all (#3034).
Behavior: With the key enabled, the invoke_reviewers step dispatches each selected lane as a background job and joins all of them before REVIEWS.md and consensus are rendered. Wall-clock cost falls toward the slowest lane rather than the sum. Default remains false, preserving the existing sequential dispatch and its rate-limit protection.
The guard is strict equality, and it fails safe. Only the exact value true opts in — "1", "yes" and "TRUE" all stay sequential, so a mistyped config gets the conservative behavior rather than concurrent requests at a rate-limited provider. A failure to read the config falls back to sequential too. This polarity is deliberately the opposite of the commit_docs guard, which fails open: there, failing open preserves user intent; here it would fire the very requests the default exists to prevent.
Result ordering is unchanged in both modes. Per-lane results are written to slug-scoped files and concatenated in reviewer-selection order after the join, so gsd-review-lane-results.jsonl reads identically whether lanes ran sequentially or concurrently. Completion order never reaches the artifact. This also means concurrent lanes never share an append handle — a lane result larger than the pipe-atomicity bound cannot interleave and corrupt the models: / model_sources: frontmatter that write_reviews renders from that file.
Per-lane semantics are untouched. Timeouts, prompt budgets, the diagnostic stub for an empty or failed lane, explicit-lane failure (ADR-2782 D4), trust/egress checks and result-file layout all behave exactly as they do sequentially. A failing lane does not abort its siblings.
Known limits: convergence cycles stay sequential by design (review → replan → re-review has a genuine data dependency), so this speeds up each pass rather than reducing the number of passes; there is no concurrency bound, so every selected lane dispatches at once; and reviewer instances sharing one adapter dispatch concurrently against that single provider, which is the most likely way to hit a limit.
Reference: Configuration · Enable parallel reviewer lanes · Commands