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* feat(#2761): gated heading-intro selection + one bracket identity grammar Foundation. Two owner-level changes plus a federated convention resolver; no reader consumes them yet. 1. GATED SELECTION, not an ungated widening. Widening every heading matcher requires the claim "no legacy ROADMAP contains a `[CODE.MM]` bracket followed by a digit", and that is false: `### [RFC.2119] 5:`, `### [v1.0] 2024:`, `### [ADR.612] 3:` and `### [ISO.8601] 2026:` are ordinary headings, and a widened reader claims each as a phase — moving phase_count and total_phases and adding W006 on projects that never opted in. No narrowing rescues it: the premise is about documents we do not control. `phaseHeadingPrefixSrcFor(baseline, convention, capturing?)` selects the pattern SOURCE at construction time. A project whose resolved `phase_id_convention` is not exactly 'bracket' compiles the same source string it compiled before. `baseline` is explicit because whether a site spells the any-bracket prefix or a bare `Phase\s+` is a fact about that site's history: handing the wider grammar to a bare site retro-grants tolerance it never had, in both directions — warnings appear, and a warning that fires today vanishes. Both bracket forms CAPTURE. `[GSD.999] Phase 07:` previously matched through the base alternative, which captures nothing, so a reader saw no bracket, fell back to the legacy token rule, and counted a labeled icebox heading while excluding the label-less one beside it — two derivations of one ROADMAP disagreeing. 2. ONE bracket identity grammar, one width rule. The milestone width is reconciled with the emit validator: pad2 output, so two digits or 3+ with no leading zero. Earlier spellings diverged in both directions — admitting `002`, which the validator rejects, and a bare `0` pad2 never produces — and the section recognizers accepted `[GSD.2]`, which SCOPED a milestone no phase heading could then resolve into, recreating the on-disk-count fallback this epic removes. An unpadded bracket is now uniformly malformed: it scopes nothing, bounds nothing, sections nothing. W005 on its directories is the surfacing signal. The milestone field is boundary-anchored, so a malformed run cannot match by its prefix (`GSD.002-01` read as sentinel `00`). Recognition stays case-insensitive because readers compile `/i`, but identity helpers match `[A-Z]`, so a captured id is folded first — otherwise `### [gsd.999] 07:` failed every sentinel test. The qualified key shares the width, the `(?=-|$)` boundary and the single-sub-phase shape of the directory token, because phaseTokenMatches returns unconditionally on a qualified hit: a key matching a directory isPhaseDirName rejects would be a final wrong answer. 3. resolvePhaseIdConvention federates workstream -> root exactly as config-loader does — including that root is a fallback only when a WORKSTREAM is active, so a project-scoped directory stands alone. loadConfig cannot serve this: it merges against CONFIG_DEFAULTS and drops keys it does not know, and this key is not among them. It governs the bracket-selection reads ONLY. PHASE_HEADING_PREFIX_SRC is left byte-identical: PR-1 shipped it, nothing consumes it, and it is superseded rather than redefined. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * feat(#2761): roadmap.cts selects its heading grammar from the convention Six matchers build their intro through the gated selector, and cmdRoadmapAnalyze / cmdRoadmapGetPhase / getRoadmapPhaseWithFallback each resolve the convention ONCE per command and thread it down. Three sites take the any-bracket baseline (they already tolerated `[anything] Phase N`); three take label-only (they spelled a bare `Phase\s+`). Handing the wider grammar to a label-only site retro-grants tolerance it never had — and not only by adding matches: on a legacy repo an unchecked `- [ ] **[v1.0] Phase 05: Thing**` bullet would start SUPPRESSING the W006 that fires today. Sentinel handling under bracket ADDS a rule rather than replacing one: a bracketed heading is a sentinel when its bracket milestone is reserved (`### [GSD.999] 01:`) OR when its token is, so the engine-wide 0/999 backlog convention keeps applying to `### [GSD.02] 999:`. Replacing the token rule let a mid-migration ROADMAP — bracket headings plus a legacy backlog block, exactly the content this epic targets — add entries to the progress denominator. The captured id is folded before the identity test, so a lowercase `### [gsd.999] 07:` is excluded too. The DIRECTORY read is threaded too. `cmdRoadmapAnalyze` resolves the convention once and hands it to all four of its heading/checklist patterns, but the single `phaseTokenMatches` call that decides `disk_status`, `plan_count`, `summary_count`, `has_context` and `has_research` was left two-argument — so every canonical `{CODE}.{MM}-{PP}-slug` directory read as `no_directory` with zero counts, on the PR's own headline verb, while the SAME build resolved those same directories correctly in three other places on the same repo (W006/W007 via phaseTokenFromDir, `state json` via the milestone filter, and the W021 milestone-complete read through this very helper's three-argument form). It failed ONLY for the directory shape the convention exists to name: a mid-migration bracket repo carrying legacy `01-one` dirs resolved fine, which is why nothing caught it. Measured, bracket vs its flat-legacy twin: `[["01","no_directory",0,0],["02","no_directory",0,0]]` against `[["01","complete",1,1],["02","planned",1,0]]`. The oracle is the twin, computed in the same test run, plus exact literals — `grep disk_status tests/adr-612-*` was zero hits before this, so neither the fix nor a future regression had any gate at all. Disclosed: a ROADMAP written in bracket form before config.json is switched reads as empty rather than mis-counted. Silent invisibility during the migration window is the deliberate trade against claiming phases on projects that never opted in. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * feat(#2761): validate.cts selects its grammar; gated directory recognition The W006/W007 feeders take the resolved convention as a threaded parameter. These sites carry the letter-tolerant `[\w][\w.-]*` capture, which makes them where an ungated widening does the most damage: `### [RFC.2119] 5:` enters roadmapPhases as a phantom and becomes a W007 "in ROADMAP.md but no directory on disk" on a project that never opted in. buildRoadmapPhaseVariants also surfaces the tokens borne ONLY by sentinel-bracket headings. Surfaced rather than filtered in place because roadmapPhases feeds both a membership check and a missing-directory warning, and only the latter should ignore an icebox item. That set is OCCURRENCE-AWARE, and the subtlety is load-bearing: roadmapPhases is a TOKEN set, so `[GSD.999] 01` and `[GSD.02] 01` collapse to one entry. Keying suppression on the token alone let an icebox heading silence a REAL phase that happens to share its number — a false negative strictly worse than the warning it removed. A token is suppressed only when no non-sentinel heading bears it. Directory recognition is added as gated FUNCTIONS beside the exported RegExp constants, which stay byte-identical: the `{CODE}.{MM}-` prefix is string-indistinguishable from the letter-prefixed-decimal family this repo documents as ambiguous, and folding a branch in changes those constants' answers on exactly that family. A RegExp constant has nowhere to attach a gate. The recognizer mirrors the emit grammar and delegates the token to the canonical owner, so recognizer and resolver agree on rejected input as well as accepted. Both functions throw on a non-string, matching the call pattern they replace. buildRoadmapPhaseVariants' CHECKLIST scan is capturing, like its heading twin and like the sibling checklist scan in roadmap.cts, and for the reason that one states: the bracket id has to ride along or the sentinel filter is blind to `- [ ] **[GSD.999] 01: Icebox**`. Left un-capturing, the scan called every checklist token REAL, and the occurrence-aware un-suppression loop then deleted the icebox token the HEADING scan had correctly marked sentinel — so `validate consistency` warned that a bracket ICEBOX phase had no directory, in the HOUSE ROADMAP shape where an icebox appears as both a bold bullet and a detail heading. `validate health` stayed silent on that same repo, so the two verbs disagreed — which is the disagreement `sentinelPhases` exists to close. Both directions are pinned, because the failure mode of a careless fix here is the opposite one: a real phase sharing a sentinel's token must still warn. It does, in all four shapes that attack it (sentinel heading + real bullet, lowercase sentinel, sentinel after the real heading, colon-less bullet). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#2761): count bracket headings, and retire them, in both derivations Both `total_phases` derivations select their grammar from the resolved convention, in one commit — cmdStateSync already carries the comment that it mirrors buildStateFrontmatter "so both report consistent percents (#3242 Bug B)", so teaching one and not the other ships that divergence. The #1514 retirement filter widens WITH the counter it protects. The canonical gesture strikes the checklist BULLET and leaves the detail heading intact, so a bracket-form retirement went undetected and the phase stayed in the denominator forever. That is half a fix alone: the retired key is compared against phaseKeyFromDir, which called extractPhaseToken with no convention. Both halves land here. Under bracket the sentinel token rule composes as the full engine set {0, 999}, so this counter agrees with `roadmap analyze`, which has always excluded both — otherwise the two derivations report different numbers for one ROADMAP and the changeset's "excluded from every count" is false as written. The LEGACY path keeps its pre-existing 999-only rule: widening it there would move legacy totals, so the two stay split off the bracket path exactly as they are today. The sync-side assertion reads the PERCENT sync writes into the STATE.md body, not the frontmatter total_phases. Sync's own counter never reaches that field — the read derivation writes it — so asserting the frontmatter after a sync measures the read path twice and lets a mutation to the write-path guard survive. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * feat(#2761): verify.cts bracket-coherence W021 + selected milestone-complete read The shipped milestone-prefixed W021 gate keeps its ROOT-only config read, verbatim base semantics. Federating it silently moved a legacy convention's answer in BOTH directions on workstream repos — a W021 that fires at base vanishing, and one that is silent at base firing. resolvePhaseIdConvention governs the new bracket-selection reads only. B6, the milestone-complete check, keeps its ungated POSTURE (bug-557 pins it with an empty config) but selects its grammar from the convention. Inferring 'bracket' from the shape of a matched bracket ran a repo-failing check against a legacy ROADMAP that merely contained `### [RFC.2119] 5:`. Directory resolution widens with the heading read, so a bracket repo whose phases are on disk stays silent, and a bracket sentinel is not reported as unstarted. checkBracketCoherence is advisory and gated. Anchored to tokenizeHeadings so fenced examples cannot warn and heading level is structural. Its scope rules each close a way it silently did nothing or fired wrongly: only a genuine MILESTONE heading opens or closes a section (a `### Notes` used to reset scope and disable both sub-checks); a legacy `## v3.0` DOES close it; an M-NN or letter-suffixed phase heading raises missing-bracket and CONTINUES; a bare `#### 2026:` is not a phase; the full h2-h6 range is processed. Its section recognizer shares the one milestone width, so an unpadded `### [GSD.3] 05:` can no longer be a phase to the id grammar and a section to the section grammar at once, silently re-scoping every warning after it. validate consistency suppresses bracket sentinels in its missing-directory warning — the two verbs disagreed, health suppressing via notStartedPhases while consistency did not. The legacy reading is untouched, including its pre-existing wart that `### Phase 999:` still warns there. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#2761): scope the milestone by its bracket; select the disk-side filter Two roadmap-parser reads, both of which made a bracket project's totals track the disk instead of the ROADMAP. The ADR pins the bracket milestone heading as `## [GSD.02] Foundation` — a name, no version — but scoping matched STATE's `milestone: v2.0` STRING against a heading, so the canonical form matched nothing and total_phases fell back to the directory count. The rule was re-derived in THREE places: extractCurrentMilestone plus two `milestoneBounded` guards; fixing one left the others falling back regardless, so they are now one gated helper. It matches the CANONICAL padded spelling only — accepting `0*N` bounded a milestone whose phases were invisible, which un-suppressed a progress percent computed off an unscoped disk count. getMilestonePhaseFilter's heading scan becomes the 14th selected read. On a bracket ROADMAP it collected nothing, so the filter degraded to pass-all and buildStateFrontmatter counted every other milestone's directories — making the bracket convention strictly worse than the M-NN one it supersedes on the property that matters most: totals must track the ROADMAP, not the disk. The DIRECTORY side of that same filter is selected with it. Teaching only the heading scan was half a fix and a worse one: `milestonePhaseNums` became non-empty, so the pass-all degrade stopped firing, but no bracket directory could satisfy the three legacy dir checks (numericRe fails on `GSD.02-05-five`, the custom-id match captures the project code `GSD`, and stripProjectCodePrefix does not strip a dotted prefix). Every bracket directory was rejected, and completed_phases / total_plans / completed_plans / percent all collapsed to 0 while `state sync` went on writing a percent off the unfiltered disk — `state json` reporting 0% on the same repo, in the same second, that STATE.md's body called 67%. That is the #3242 Bug B divergence this PR exists to avoid, and total_phases could not show it: `Math.max(phaseDirs.length, roadmapPhaseCount)` floors it at the ROADMAP count no matter how many directories are rejected. The dir side matches on the milestone-QUALIFIED id, delegated to the owner's gated `phaseTokenMatches(dir, id, 'bracket')`, not on the bare token: READING-B puts the milestone in the bracket, so `GSD.01-01-old-one` and `GSD.02-01-one` share the token `01` and only the qualified key separates them. The qualified ids are kept in their own set — a hyphen in `milestonePhaseNums` would flip `roadmapUsesHyphenedIds` and silently move the LEGACY dir path on a bracket repo — and the branch is ADDITIVE: on a miss it falls through to the three legacy checks, so a bracket project carrying legacy-shaped directories reads unchanged. Both are resolved lazily and gated, so the legacy path pays neither a config read nor a second scan and cannot change answer. The scoping call is also GUARDED: resolvePhaseIdConvention reaches planningDir, which throws a plain Error for a GSD_PROJECT/GSD_WORKSTREAM segment carrying `/`, `\` or `..`. At base the only planningDir call in extractCurrentMilestone sits inside the STATE-read try, so the function returned normally on such an environment; an unguarded one here let that escape and broke the never-throws invariant that getRoadmapPhaseInternal and getMilestoneInfo three hundred lines below carry #2245 / ADR-227 notes about. Unreachable through the CLI — GSD_WORKSTREAM is rejected up front by the workstream-name policy and GSD_PROJECT throws identically at base — but reachable by any in-process embedder, which is precisely who that invariant is for. The filter's own resolve call was already inside its try and is unaffected. The milestone-qualified key is formed only for a token that is itself a bracket phase token. `${bracketId}-${token}` is a string SPLICE, so a mid-migration heading carrying an M-NN label — `### [GSD.02] Phase 02-01:` — spliced to `GSD.02-02-01`, which the qualified-key grammar reads as milestone 02 / phase 02: the `-01` truncated, both such headings collapsing to one key, and the heading claiming `GSD.02-02-two`, the directory it does NOT name, while rejecting `GSD.02-01-one`, the one it does. The guard drops those headings back to the unqualified legacy path, restoring the base ACCEPTANCE VECTOR exactly — pinned against the milestone-prefixed reading of the same ROADMAP, which is base-identical on this shape. Scoped precisely, because the fixture moves one number that the guard does not touch: `total_phases` on it reads 1 at base and 2 here. That is the bracket heading COUNT this PR exists to add, not the splice — measured identical with and without the guard, and identical to what the canonical `### [GSD.02] 01:` spelling does on the same fixture (both read 2 with zero directories on disk, where base reads 0). The claim is base-equivalent ACCEPTANCE, not a base-equivalent reading. One consequence is stated rather than fixed: a heading whose token carries a hyphen still puts that hyphen into milestonePhaseNums and so still flips `roadmapUsesHyphenedIds`. Base does the same for that spelling, so preserving it is what keeps the shape base-equivalent; excluding the token would have moved answers versus base on malformed input. The comment at the qualified-set declaration is corrected to claim only what is true — it keeps QUALIFIED IDS out of that flag's input, not hyphens in general. The oracles ship with it, and they are the five numbers, not the one: the parity gate now asserts total_phases, completed_phases, total_plans, completed_plans AND percent, on both derivations, on two fixture shapes (one milestone; two milestones with stale prior-milestone directories on disk). The oracle is the flat-legacy twin, built in the same test run and compared number for number, plus exact literals so a shared wrong answer cannot pass. The oracle SUBSTITUTION is itself pinned. The M-NN spelling of these shapes could not serve, because buildStateFrontmatter's #2445 de-dup key captures only a directory's leading integer and collapses `02-01-one` / `02-02-two` / `02-03-three` to one — measured [3,0,1,0,0] against the flat-legacy twin's [3,2,3,2,67], identically at base and before this fix, and structurally unreachable from the bracket key space. That reasoning is only sound while it stays true, so a characterization test holds the M-NN reading down on the two numbers that do not depend on which directory wins the mtime race. Widen the de-dup key and it fails, instead of quietly invalidating the changeset's disclosure. Also adds the call-site pin. The structural table pins transcription against the selector; it cannot see a call site whose BASELINE ARGUMENT is wrong. Flipping verify.cts's milestone-complete site to the wider baseline grants a fires-on-every-repo check tolerance it has never had, and every behavioural test still passed. The pin reads the shipped sources and asserts the mode at each of the 14 sites, count-exact. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#2761): pin the bracket read surfaces in the parity gate This gate exists because #2043 fixed one bug across five hand-edited copies of a rule and #2232 was the residual that survived, because a later reader could not tell the copies were one rule. PR-2 adds two consumers, so they belong here. Surface 7 — the heading read and the directory read must agree about WHICH phase a `MM-<seg>` pair names, across the shared width corpus, and the bracket and legacy spellings of one heading must yield the same token. Surface 8 — the two bracket directory readers, in BOTH directions. Agreement on ACCEPTED input was already pinned; agreement on REJECTED input is where they actually diverged. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#2761): changeset Disclosures for the PR body (deliberate, not defects): - phase_id_convention is not a CONFIG_DEFAULTS key, so loadConfig drops it and cannot serve as the convention resolver however the file is federated. This PR ships its own workstream->root resolver; adding the key and its value enum is later-slice work. - Convention matching is strictly === 'bracket'. A misspelled value reads as not-configured and the project keeps legacy behaviour silently. - An UNPADDED bracket milestone (`[GSD.2]`) is malformed: it scopes nothing, bounds nothing, sections nothing, and is not a phase id. W005 on its directories is the surfacing signal. - WIDTH UNIFICATION MOVED FOUR MERGED PR-1 EXPORT ANSWERS on non-canonical inputs, none of which toDir can emit and none of which had a bracket caller at base: isSentinelPhaseId('GSD.0-01', 'bracket') true -> false isSentinelPhaseId('GSD.0999-01', 'bracket') true -> false getMilestoneFromPhaseId('GSD.2-01', 'bracket') 'v2.0' -> null getMilestoneFromPhaseId('GSD.002-01', 'bracket') 'v2.0' -> null The canonical pad2 sentinel spelling `[GSD.00]` still tests true. - FLAG TO MAINTAINER: docs/adr/612:132 reads "Sentinel behavior (0.x / 999.x -> milestone null) is preserved". After the unification that holds for the canonical `00` spelling only, not for a bare `[GSD.0]`. ADR wording is yours; flagging the tension rather than editing it. - The bracket sentinel rule COMPOSES with the legacy one — a bracketed heading is a sentinel when its bracket milestone OR its token is reserved. Under bracket the state-side token rule is the full {0, 999} set so both derivations agree; the LEGACY path keeps its pre-existing 999-only rule, unchanged. - validate consistency's legacy reading is untouched, including the pre-existing wart that `### Phase 999:` warns there while validate health suppresses it. - find-phase still cannot resolve a bracket phase directory. phase-locator.cts is outside this PR's module set. Sibling PR #2559's matchPhaseDirs calls phaseTokenMatches without a convention, so whichever slice lands second must thread it through. - Four of the five bracket readers scan raw ROADMAP content, so a bracket heading inside a fenced code block is read as a phase. Pre-existing for the legacy spelling; parity, not a new class. - roadmapPhaseLookupSources gained no bracket source: nothing emits a milestone-qualified query into it yet. - roadmap validate remains a separate, unfederated convention reader. Pre-existing and base-identical, but two verbs can disagree about the active convention on one project. - _diskScanCache keys on cwd while the values it caches are now convention-dependent. Not reproducible through the CLI; pre-existing for the workstream dimension, widened here. Stated as inconclusive. - A ROADMAP written in bracket form before config.json is switched reads as empty rather than mis-counted — the deliberate migration-window trade. - THE READ AND WRITE PERCENTS STILL DIVERGE ON A MULTI-MILESTONE REPO, and that divergence is MIRRORED under bracket rather than closed. buildStateFrontmatter applies the milestone filter; cmdStateSync does its own fs.readdirSync and never calls it, so on a repo carrying prior-milestone directories the read path reports the SCOPED percent and the sync body reports the WHOLE-DISK one. Measured on the true base build (d04592de), flat-legacy spelling, 3 in-scope phases with 1 complete plus 2 stale prior-milestone dirs: `state json` [3,1,3,1,33], sync body 60%. The bracket twin of that repo now reads the same two numbers — 33 and 60. Scoping the sync counter would move every legacy repo's percent, which a bracket read-path PR must not do. The gate pins both sides, so the mirror cannot silently become a one-sided fix. - THE PARITY ORACLE IS THE FLAT-LEGACY TWIN, NOT THE M-NN ONE, and that is a measurement finding rather than a preference. buildStateFrontmatter's #2445 de-dup key captures only a directory's LEADING integer, so the M-NN dirs `02-01-one` / `02-02-two` / `02-03-three` all key to `2` and two of the three are dropped before they are ever counted: base reads [3,0,1,0,0] where the flat-legacy twin of the same repo reads [3,2,3,2,67]. Present identically at base and at HEAD, untouched here, and structurally unreachable from the bracket key space — `GSD.02-01-one` does not match that pattern at all, so every bracket directory keys to its own name. The source line already carries a `phase-id-owner:` sanction recording the divergence. Mirroring it under bracket would mean manufacturing a collision that cannot occur, so the gate compares against the flat-legacy spelling, which is uncontaminated. This paragraph is itself pinned: a characterization test holds the M-NN reading on the two numbers that do not depend on which directory wins the mtime race, so widening the de-dup key in a later slice fails the suite rather than silently making this disclosure false. - THE `phaseTokenMatches` CALL-SITE CENSUS, stated so the remaining gaps are auditable rather than implied. 13 call sites outside the owner (phase-id.cts). THREE are three-argument: verify.cts:2229 (the W021 milestone-complete read, already was), roadmap.cts:436 (`roadmap analyze`'s directory lookup, threaded by this PR) and roadmap-parser.cts:792 (the disk-side milestone filter, added by this PR). The other TEN are two-argument and stay that way — phase.cts ×5 (220, 277, 444, 585, 1547), phase-locator.cts:62, smart-entry.cts:243, init.cts:1414, milestone.cts:551 and verify.cts:2467. All ten are untouched by this PR and base-identical. One of them sits in a file this PR DOES edit, so it is named rather than left to a reader's grep: verify.cts:2467, `verify schema-drift <phase>`. Measured on a bracket repo across base / pre-fix branch / this HEAD, all three agree on all three argument forms — `verify schema-drift GSD.02-01` and `… 01` both report "Phase directory not found" on every build, and `… GSD.02-01-one` resolves on every build through the exact-directory-name fallback. So the user-visible shape of what stays broken is: a bracket phase is addressable there by full directory name only, exactly as at base. Threading the convention into a function this PR never touched, in the last round before ship, is the wrong trade; it is where the same one-argument fix goes next, alongside milestone.cts:551 and init.cts:1414. - A BRACKET HEADING WHOSE TOKEN CARRIES A HYPHEN (`### [GSD.02] Phase 02-01:`, a mid-migration spelling) forms NO milestone-qualified key, and therefore scopes through the unqualified legacy path — base-equivalent ACCEPTANCE, which is the claim, and not a base-equivalent reading: `total_phases` on that shape moves 1 -> 2 for the same reason it moves on the canonical `### [GSD.02] 01:` spelling, because counting bracket headings is what this PR does. Such a token still flips `roadmapUsesHyphenedIds`, as it also does at base. The comment at the qualified-set declaration now claims only that narrower, true thing. The `pr:` field carries the sub-issue number as a placeholder — it must be updated to the real PR number when the PR is opened. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#2761): point the changeset at PR #2867 * test(#2761): fast-check properties for the convention-selection layer CONTRIBUTING.md mandates a generative property test for parser/bijective-contract changes; PR-2 shipped six example-based files and none. This adds the missing layer, scoped to what PR-2 actually contracts — WHICH pattern each reader compiles, decided by the resolved `phase_id_convention` — rather than restating PR-1's grammar round-trip properties, which already live in tests/adr-612-bracket-grammar.test.cjs. Four properties: P1 an opted-in repo reads the ADR-canonical label-less bracket heading/dir and a non-opted-in repo is byte-blind to the identical input; P2 every non-bracket convention agrees with the hand-transcribed BASE source over generated content, including bracket-DOTTED legacy prose (`[RFC.2119] 5:`) that must never be claimed as a phase; P3 nine per-field mutations are rejected and the one case variation folds instead; P4 both sides of a phase comparison derive the same key under the same convention. Generators template every input from raw primitives — nothing is seeded through renderPhaseId/toDir, the p2() tautology that made #2258 round 1's property test structurally unable to find B1. Domain reaches past 99 into the 3+-digit branch (round 2's numArb-capped-at-99 miss), forces sub-phases in at weight, and pins both sentinel milestones. Falsified against the COMPILED lib, not the source: five deliberate mutants (gate never fires; gate always fires; milestone width widened to \d+; the #612 convention forwarding dropped from phaseKeyFromDir; extractPhaseToken's bracket branch ungated) each fail the specific property that should catch them — 16/2, 16/2, 15/3, 17/1, 17/1 pass/fail — and the lib restores byte-identical. An earlier draft of P2 held vacuously: its base regex omitted the markdown furniture the selected one carried, so every realistic `### Phase NN:` line matched neither side. The gate-always-fires mutant did not kill it. Both are now compiled through one function, and that mutant kills P2. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#2761): adversarial malformed bracket tokens across the tolerant readers The existing boundary coverage stopped at shapes the emit grammar rejects (unpadded `[GSD.3]`, wrong-case, `12A`). It never exercised a STRUCTURALLY broken token — a non-numeric milestone, a bracket that never closes, a bracket nested in another — which is the input a tolerant reader is most likely to half-read, and the one the PR's own regex commentary is explicit about. read-tolerance (roadmap heading scan + validate's dir and variant builders): ten malformed headings, each asserted to be read as a phase by NO convention and to give the opted-in repo the same answer as the legacy one; the corpus driven through `roadmap analyze` end to end; malformed DIRECTORY names asserted unrecognized and non-throwing on all four conventions; and the two variant builders asserted to agree, since a widening that reaches only one splits `validate consistency` from `validate health` (the #3242 Bug B shape). coherence (verify.cts W021): the same six broken shapes asserted to raise no W021 of their own AND not to re-scope the W021 that follows them — the G2 failure mode reached from a different shape, where a heading that is not a phase but IS read as a section silently moves later warnings onto the wrong milestone. Both files gain a pathological-input time bound. Nested quantifiers over a long unclosed bracket are the classic ReDoS shape and two commits on next (#2828, #2944) were CodeQL-flagged for exactly that, so the bound is asserted rather than argued from reading the pattern. The probes themselves parse no regex. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs(#2761): document "bracket" as a phase_id_convention value The row listed only `"milestone-prefixed"` and `null`, so after two shipped slices (#2258 grammar, this PR's read path) the convention had no documented enum value. CONFIGURATION.md is also a top-10 historical co-changer of both src/verify.cts and src/state.cts and was absent from this PR. The row states the boundary rather than the ambition: `"bracket"` changes the READ path only, there is no migrator and no emit yet, and a project on any other value compiles the patterns it compiled before. That keeps the docs honest for the two releases before PR-3 and PR-4 land, instead of describing a convention a user cannot yet migrate to. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#2761): retype the changeset Added, drop the docs-exempt marker `Fixed` was wrong by CONTRIBUTING.md's own definition — a fix restores documented behavior, and bracket read tolerance is the second slice of a capability that did not exist before #2258. The type also carried a `docs-exempt` marker, and `Fixed`/`Security` are exempt from the docs-required lint, so the typing had the effect of routing around a gate this change should pass. It now passes it: `lint-docs-required` returns ok_docs_updated on the CONFIGURATION.md row added in the previous commit. Body gains one sentence pointing at that row and restating that `"bracket"` is a read-path opt-in until the migrator and write path land. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#2761): pin the version-less bracket milestone scoping gap; narrow the claim The changeset asserted that milestone scoping "recognises the ADR-canonical `## [GSD.02] Foundation` heading and applies to the phase DIRECTORIES too." A CLI probe on that exact heading form falsifies the second half: with no `vN.N` in the milestone heading the directory side does not scope, and directories from BOTH the prior and the later milestone are admitted. Measured 4 dirs counted where the milestone declares 2. Every bracket fixture in the suite writes `## [GSD.02] v2.0: …`, so nothing covered the form the ADR actually specifies — and the state.cts doc comment calls that version-less form canonical. Mechanism, in extractCurrentMilestone: the bracket scope branch selects the right currentSection, but `preambleCutoff` keys off a pattern requiring a version or status emoji, so a version-less roadmap falls back to the current milestone's own offset and every PRIOR milestone lands in the preamble — whose phase-stripping regex only strips `Phase N:`-labelled headings, so bracket phase headings survive it. Independently, `computeSectionEnd` accepts a boundary only on a version/emoji heading, so the section runs to EOF and every LATER milestone is swept in. Two sites, bidirectional. Not fixed here: it changes milestone scoping, which is shared with the legacy path. Five characterization tests pin today's reading plus a versioned CONTROL proving the version string is the only difference, and the changeset sentence is narrowed to what the code does. The DEFECT assertions are written to be INVERTED by the fix, not deleted — that inversion is its regression proof. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs(#2761): re-anchor the branch's own cross-file line citations after the rebase Three of this branch's code comments cite sibling call sites by line number, and the rebase onto178ec000moved two of the three targets: roadmap-parser.cts validate.cts:210 -> :218 (const g = capturing ? 1 : 0) state.cts:1715 -> :1752 (const bg = … 'bracket' ? 1 : 0) roadmap.cts verify.cts:2229 -> :2355 (phaseTokenMatches 3-arg form) `state.cts:1715` had drifted 37 lines and now lands on the retirement skip, not the capture-offset idiom the sentence is about — the citation read as evidence for a claim the cited line does not support. planning-workspace.cts's `config-loader.cts:618/:649` was checked and is still correct; left alone. Comment-only. Build, drift guard and the bracket suites re-run unchanged. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#2761): scope the version-less bracket milestone heading too (B1) computeSectionEnd and the preambleCutoff scan in extractCurrentMilestone (roadmap-parser.cts) only recognized a milestone boundary heading that carried a vN.N token or a status emoji. The ADR-canonical bracket heading (## [GSD.02] Foundation) carries neither, so on that shape computeSectionEnd fell through to content.length (sweeping every LATER milestone into scope) and preambleCutoff fell back to the current milestone's own offset (leaking every PRIOR milestone's bracket phases into the preamble, whose Phase-N: strip regex never matches them). Under the bracket scope branch, both sites now also accept a `#{1,2}\s+\[CODE.MM\]` boundary, built from phase-id.cts's BRACKET_ID_SRC (single owner of the bracket-id grammar) rather than a re-typed literal. `#{1,2}` is the deliberate discriminator: a bracket PHASE heading is level 3 and shares the same `[CODE.MM]` prefix, so a `#{1,3}` boundary would swallow it too. Reachable only when bracketScopeConvention === 'bracket' was already resolved (i.e. the bracket scope branch actually fired), so version-bearing/emoji headings and non-bracket conventions take the exact pre-existing code path byte-identically — confirmed by the full adr-612 suite staying green. Inverts the four DEFECT assertions in the "#612 PR-2 CHARACTERIZATION: a version-less bracket milestone does not scope" describe block (tests/adr-612-bracket-phase-counting.test.cjs) into their regression-proof form, per the block's own doc comment, and reframes the describe title/comments accordingly. Corrects the .changeset/2761-bracket-read-tolerance.md fragment, which described the directory-side version-less gap as an open, un-closed bound. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): thread sentinelPhases into validate health's W006 loop (B2) cmdValidateHealth's W006 loop (src/verify.cts) destructured only roadmapPhases from buildRoadmapPhaseVariants, not sentinelPhases — unlike cmdValidateConsistency, which already skips sentinelPhases with the identical guard a few hundred lines up. A heading-only bracket icebox/pre-milestone entry ([GSD.999] / [GSD.00]) therefore gained a false W006 "no directory on disk" from validate health while validate consistency correctly stayed silent on the very same ROADMAP — the two validators contradicting each other. Threads sentinelPhases through and skips it before the existsOnDisk check, mirroring the consistency guard exactly. Gated the same way sentinelPhases already is (empty unless phase_id_convention is 'bracket'), so a legacy repo's W006 reading — including its own pre-existing wart where a legacy `### Phase 999:` still warns on both verbs — is untouched; confirmed by the existing "INHERITED WART, unchanged" test staying green. Adds the paired-agreement regression test (#612 PR-2 B2 describe block in tests/adr-612-bracket-read-tolerance.test.cjs): a sentinel-only bracket roadmap must produce no missing-directory warning from EITHER validator, plus a CONTROL proving a real phase with no directory still warns on both. Confirmed red (health false-W006) against the pre-fix code before applying the fix. Corrects the .changeset/2761-bracket-read-tolerance.md fragment, which described the asymmetry as already closed and in the wrong direction (it credited validate health with already staying silent, when health was the one falsely warning). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#2761): pin mixed-shape preamble cutoff and boundary heading levels Closes two self-flagged coverage gaps in the B1 fix (commit 08d5b0c4) ahead of adversarial review. No src change — all three new tests are green against the code as committed. 1. earliest-of-either preambleCutoff comparison: only exercised where the version/emoji match and the bracket match happen to land on the same heading. Adds the mid-migration mixed shape (version-bearing PRIOR + version-less CURRENT) and asserts scoping outcomes (accepts booleans + total_phases), not internals. 2. `h.level <= 2` conjunct in computeSectionEnd: provably redundant whenever the selected milestone heading is level 2 (every existing fixture), since `h.level > level` alone already implies it there — a mutant deleting the conjunct would have survived every prior test in this file. Adds a level-3 CURRENT-heading fixture (with a real PRIOR milestone so the preamble side-channel can't independently rescue the truncated phases) that makes the conjunct's deletion test-visible, confirmed by hand-mutating a throwaway copy of the compiled output (never touching tracked src or the real build) and observing the assertion flip. Also pins a level-1 companion case (#{1,2} tolerance, not just level 2). NOT included here: the other mixed-shape direction (version-less PRIOR + version-bearing CURRENT) turned out to be a genuine, currently-unfixed gap — reported separately rather than silently patched or weakened, per instruction not to touch src while a probe run is in flight. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): engage bracket boundaries when the current milestone heading is version-bearing (B3, self-caught) Found during round-2 self-verification of B1 (commit 08d5b0c4), while closing the mixed-heading-shape coverage gaps flagged in my own review notes. The B1 fix resolved `bracketScopeConvention` only inside the `if (headingMatches.length === 0)` gate that also drives SELECTION's own bracket fallback (which heading counts as "current"). That gate is correct for selection, but `bracketScopeConvention` also feeds computeSectionEnd's and preambleCutoff's boundary detection further down — which accidentally inherited selection's gate instead of having its own. Trigger shape: the CURRENT milestone heading is itself version-bearing (`## [GSD.02] v2.0: Current Milestone`), so the primary version-string match succeeds immediately — headingMatches.length !== 0 from the very first check — and the entire bracket-resolution branch was skipped. A sibling milestone (PRIOR or LATER) that is version-less then got neither the version/emoji boundary rule (it has none) nor the bracket boundary rule (never resolved), reproducing the original #612 defect (total_phases falling back to the whole-disk count) through a structural shape B1's own fixtures never exercised — every one of them is uniformly version-bearing or uniformly version-less across all three milestones, never mixed with CURRENT specifically being the version-bearing one. Fix: resolve `bracketScopeConvention` unconditionally, decoupled from `headingMatches.length`. SELECTION is deliberately left untouched — the `if (headingMatches.length === 0 && bracketScopeConvention === 'bracket')` fallback that picks which heading is "current" keeps its original gate byte-for-byte (confirmed by diff: that line is unmodified). Only the convention *resolution* moved out from behind it, so boundary detection can consult it regardless of which branch selected the heading. The extra `resolvePhaseIdConvention` call this now costs on every invocation (previously paid only when the version match found nothing) is the accepted cost: a non-bracket repo still resolves to something other than 'bracket' (or null on a poisoned env, caught exactly as before), so `bracketMilestoneHeadingRe` stays null and every downstream branch is byte-identical to today — confirmed by the full adr-612 + roadmap-parser + state + verify + health-validation suite staying green (1260/1260) and the all-version-bearing/legacy fixtures showing no behavior change. TDD: tests/adr-612-bracket-phase-counting.test.cjs describe block "#612 PR-2 B3: bracket boundaries engage even when CURRENT is version-bearing but a sibling is not" — 4 tests, confirmed red against pre-fix code (leak-in booleans true/true, total_phases 4) before this change, green after. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): reject same-milestone continuation headings as boundaries (B1) Gate-2 adversarial review Blocker 1: the B1/B3 boundary fired on ANY as the one currently selected — a version-less checklist/detail split (`## [GSD.02] Foundation (Phase Details)`, or an ad-hoc continuation heading) truncated the current milestone's own section instead of being recognised as a continuation of it. The `(Phase Details)` re-append only searches VERSION-STRING matches, so a version-less continuation heading was cut out and never re-appended — a confidently wrong, non-degraded phase count for a still-incomplete milestone (repro8 case 1: 1/1/100 instead of 2/1/50; repro5: same, on a fully version-less roadmap with no sibling milestones at all). Introduces one shared helper, isBracketMilestoneBoundary(headingText, level, selectedBracketId), used by both computeSectionEnd and the preambleCutoff bracket scan, replacing the ungated `h.level <= 2 && bracketMilestoneHeadingRe.test(...)` inline check. `selectedBracketId` (case-folded via phase-id.cts's foldBracketId, matching the branch's own fold-before-identity convention) is derived from `selected[0]`, which is the full matched heading line on BOTH selection paths (version-string and bracket-fallback), so one extraction covers both. Level cap stays at `level > 2` for now (temporary — ADR-612's content discriminator replaces it in the next commit); same-milestone rejection is the change this commit is scoped to. DEVIATION from the reviewed plan, caught empirically: applying the same-milestone rejection at the preambleCutoff site (as literally specified) regressed an existing pin ("boundary heading level: a level-1 CURRENT milestone heading also scopes correctly") and a fenced-heading case (repro10 A3) — because preambleCutoff's job is "where does the earliest milestone-shaped heading sit, scanning from the TOP of the document," and the selected heading's own occurrence is always a correct answer to that question regardless of same-id-ness; rejecting it let the earliest-of-either comparison fall through to a stray LATER heading instead. `selectedBracketId` is threaded through as `null` at the preambleCutoff call site for this reason — bracket-shaped (and, from the next commit, phase-tail) discrimination still applies uniformly at both sites; only the same-milestone component is call-site-specific, since it encodes a "keep scanning past this heading" instruction with no counterpart in a top-of-document search. Tests: new describe block "#612 PR-2 B1 round-2: a same-milestone continuation heading is not a boundary" — RED-turned-GREEN fixtures for repro8 case 1 and repro5, plus PINs for repro8 case 3 (trailing different-id icebox still terminates) and repro10 A1 (all-version- bearing + icebox + Phase Details stays exactly 2/1/50 — no double-count from the same-milestone exclusion interacting with the pre-existing detailsMatch re-append). syncedTotal()/syncedPercent() assertions omitted from the repro10 A1 pin: that fixture carries dirs outside the current milestone, which exposes the SEPARATE Major 1 defect (cmdStateSync's body percent from an unfiltered disk scan) — asserted once Major 1 is fixed, not here. Full suite green (796/796 across the targeted adr-612 + roadmap-parser + state files); node scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): bracket boundary discriminates by content, not heading level (B2) Gate-2 adversarial review Blocker 2: three sites disagreed about which heading levels are a bracket milestone. The selector (roadmap-parser.cts's bracket-fallback SELECTION branch, `^#{1,3}\s+\[CODE.MM\]`) and `isMilestoneBounded` (state.cts) both admit level 1-3, but isBracketMilestoneBoundary's level cap only admitted level 1-2 (`h.level <= 2`, from the B1 commit). A `###`-level bracket milestone heading was therefore SELECTED and BOUNDED but never TERMINATED: computeSectionEnd ran with level=3, a level-3 SIBLING milestone survived the pre-existing `h.level > level` (not-deeper) filter, failed the version/emoji test (version-less), then failed `h.level <= 2` — falling through to `return content.length` and sweeping the sibling milestone's own phases into the current one. Reproduces trek-e's original #612 defect verbatim ("a safe degrade became a confidently-wrong persisted number") on a heading level the selector and bounding predicate both already admit (repro2 case C: 4/75% instead of 2/100%; mechanism confirmed directly via repro7 — extractCurrentMilestone returned the whole 214-byte document). ADR-612 Decision 1 (docs/adr/612-bracket-phase-id-convention.md:56) specifies the discriminator as CONTENT, not level: "a phase heading is a bracket followed by a digit-then-colon ([GSD.02] 05:); a milestone heading is a bracket followed by a name." Replaces the `level > 2` rejection with BRACKET_PHASE_TAIL_RE — built by interpolating phase-id.cts's single-owner phaseHeadingPrefixSrcFor(ANY_BRACKET, 'bracket', false) plus the digit + optional-tag + colon tail every phase-heading counter in this file already spells, not a re-typed grammar — and widens the level check to a depth-sanity cap of 3 (mirroring the selector's own `#{1,3}` ceiling; NOT itself a phase/milestone discriminator). Covers the dotted sub-phase heading form (`[GSD.02] 05.03:`) via the same `[\w][\w.-]*` token, pinned by a new fixture — the shape where a regex slip in the tail grammar would hide. preambleCutoff's own raw-scan regex is widened from `^(#{1,2})` to `^(#{1,3})` in lockstep: the outer pattern's level ceiling must track the helper's cap, or a level-3 PRIOR milestone heading is invisible to that scan and its own phase heading leaks into the preamble un-stripped (a real double-count this widening closes, verified against repro2 case C directly). The existing "boundary heading level: a level-3 CURRENT milestone heading still scopes correctly" pin (3e562f12) now passes via a DIFFERENT mechanism than before — its own neighbours are version- bearing, so it previously passed via the version/emoji rule (the level cap was never actually exercised by that fixture, per the round-2 review's own finding); with the content discriminator, the SAME fixture's level-3 phase headings are now correctly excluded because they are phase-tail-shaped, not because they are too deep. A deliberate mechanism change, confirmed by re-running that test green after this commit. Also updates the "every selector call site declares the right baseline" governance pin (adr-612-bracket-heading-selection.test.cjs): BRACKET_PHASE_TAIL_RE is a new, legitimate ANY_BRACKET call site in roadmap-parser.cts (always passing the literal 'bracket' convention, since its only caller is already gated on bracketBoundaryActive) — EXPECTED count bumped 1->2, with a matching BASE_SITES transcription entry (identical src to every other ANY_BRACKET site, since the function is pure). Tests: new describe block "#612 PR-2 B2 round-2: the bracket boundary is a CONTENT discriminator, not a level cap" — RED-turned-GREEN for repro2 case C (exact total AND truthful percent, since isMilestoneBounded already returns true at #{1,3}) and repro7's mechanism, a PIN for the dotted sub-phase form, and a re-pin of repro8 case 3 (icebox) under the new mechanism. Full suite green (907/907 across the targeted adr-612 + roadmap-parser + state + phase-id files); node scripts/lint-phase-id-drift.cjs clean; eslint clean on all changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): fence-aware preamble cutoff on the bracket branch (Blocker 3) Gate-2 adversarial review Blocker 3: preambleCutoff's bracket scan used a raw content.match/matchAll — blind to fenced code blocks — while its sibling computeSectionEnd (a few lines above it) already consumed tokenizeHeadings(content), which strips fences. The two halves of one boundary semantic disagreed about what a heading is. A fenced markdown example in the preamble containing a bracket heading (ADR-612's own docs do exactly this) was textually the earliest `#{1,3} [CODE.MM]` match: preambleCutoff landed INSIDE the fence, `preamble = content.slice(0, preambleCutoff)` ended with an unclosed opener, and the unbalanced fence then blinded getMilestonePhaseFilter's own tokenizeHeadings(scope) call — every heading in the returned scope vanished, phaseCount degraded to 0, and the pass-all filter admitted every directory on disk (repro11's mechanism, confirmed directly: fence count 1/odd, tokenizeHeadings(scope) -> only "Roadmap"). Regression vs round-1, which had no bracket pattern to blind and so fell back to the correct heading (repro12 bracket row: 2/1/50 at round-1, 4/3/75 at HEAD). Fixed by hoisting one tokenizeHeadings(content) call (currentMilestoneHeadings) shared by computeSectionEnd and the preambleCutoff scan, which now iterates that same fence-aware token list instead of a raw regex. HeadingToken.text is already hash-stripped and trimmed, so isBracketMilestoneBoundary needs no `^#{1,3}\s+` re-derivation at this site (that spelling would not match h.text — a note the round-2 review called out explicitly, confirmed while porting). selectedBracketId stays `null` here, unchanged from the B1 commit's same-milestone-exclusion reasoning. DISCLOSED, not fixed (explicitly out of scope per the round-2 review's own minimal-fix note): the LEGACY (non-bracket) anyMilestonePattern raw-match path shares the identical fence-blindness hazard and stays byte-identical — a bracket repo whose preamble has a fenced VERSION-BEARING heading still has the legacy raw-match win the earliest-of-either min() (repro12's LEGACY control: 4/3/75, unchanged across base/round-1/HEAD/this commit). Pinned here so a future reviewer files this as a known, pre-existing gap rather than a new regression. Tests: new describe block "#612 PR-2 Blocker 3 round-2: preambleCutoff is fence-aware (bracket branch only)" — RED-turned-GREEN for repro12's bracket row and repro11's mechanism (fence balance + non-degraded phaseCount + correct per-directory admission), a PIN for repro12's LEGACY control (the disclosed gap, explicitly unchanged), and a PIN for repro10 A3 (a fenced heading INSIDE the current section must still not terminate it). Full suite green (1072/1072 across the targeted adr-612 + roadmap- parser + state + phase-id + markdown-sectionizer files); node scripts/lint-phase-id-drift.cjs clean; eslint clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): scope cmdStateSync's disk scan by milestone under bracket (Major 1) Gate-2 adversarial review Major 1: `state sync` wrote a Progress PERCENT computed from an UNFILTERED whole-disk scan, beside the milestone-scoped total_phases/completed_phases it writes into the same STATE.md via the refreshed frontmatter (syncStateFrontmatter -> buildStateFrontmatter, which has always applied getMilestonePhaseFilter for the READ path). cmdStateSync's own `fs.readdirSync` chain (the WRITE-path scan) never called the milestone filter at all, unlike buildStateFrontmatter's identical-purpose scan. One command therefore wrote two contradictory numbers into one file: on the ADR-canonical version-less bracket fixture (4 dirs, 3 complete; asserted milestone = 2 phases, both complete), base wrote total_phases:2/completed_phases:2 (correct, from the READ derivation) alongside body Progress 75% (wrong — from the unfiltered WRITE derivation; repro3). Fixed by threading `getMilestonePhaseFilter(cwd)` through the same `.filter()` chain buildStateFrontmatter already applies, gated on `syncConvention === 'bracket'` (falling back to a pass-all predicate otherwise) — so totalDiskPlans/totalDiskSummaries/diskCompletedPhases/ syncTotalPhases become milestone-scoped under bracket, byte-identical under legacy. DEVIATION (approved, stated plainly): an earlier phrasing of this fix called for mirroring buildStateFrontmatter's filter UNCONDITIONALLY. Implemented GATED instead — an unconditional filter would ALSO move every LEGACY repo's persisted percent, since the milestone-scoping-vs- whole-disk divergence this closes is engine-wide, not bracket-specific. The gate keeps legacy byte-identical, which is the binding constraint: this is a bracket read-path PR, not a legacy behavior change. Nit 2 (informational, no code change): 10 calls to extractCurrentMilestone on a legacy repo cost 10 config.json existsSync + 10 readFileSync (0 before B3); accepted, unmemoized cost, unaffected by this commit. Also folds in two minors from the round-2 review: - Corrects .changeset/2761-bracket-read-tolerance.md: the sibling- exclusion sentence now states it holds at any heading level 1-3 and across a milestone split over two headings (true again now that Blockers 1 and 2 are fixed); the percent sentence states plainly that `state sync`'s body percent is now milestone-scoped under bracket, and unaffected under legacy. - Records the read/write scoping divergence at currentMilestoneRawRanges (src/roadmap-parser.cts) in a comment: it did not receive B1/B2's bracket boundary fixes, currently harmless (its only consumer falls back to whole-content mutation, and every mutation there is still Phase-labelled-only, not bracket-widened), but live the moment the write path is bracket-widened — flagged so a future PR closes it in lockstep with that work, not after. Tests: 6 pre-existing tests in tests/adr-612-bracket-phase-counting.test.cjs needed fixture updates, not logic changes — they used the default single directory (`GSD.02-01-setup`, phase "01"), which the SENTINEL/ retirement/mixed-heading fixtures in those tests never declare as a real phase (only 04/05/06/999/etc are declared). Before this fix, cmdStateSync's unfiltered scan counted that off-roadmap directory anyway; after this fix the milestone filter correctly excludes it, which for several of these fixtures made `state sync` a no-op (the computed 0% coincided with STATE.md's initial template default) and broke `syncedTotal()`/`syncedPercent()`'s ability to observe anything. Updated each to pass an EXPLICIT directory naming one of the fixture's REAL declared phases, preserving each test's original numerator/ denominator intent. One test — "shape 2 WRITE" — was substantively rewritten: it was a CHARACTERIZATION of the Major 1 bug itself ("the DISCLOSED legacy gap, mirrored — not closed"), and now correctly pins bracket closing to 33% (agrees with the read path) while legacy stays at the disclosed 60% (unchanged, deliberately, per the gating decision above). Full suite green: `npm test` 1449/1449 (0 fail, 0 skipped, 0 todo, single-shard "all" run — includes issue-2765-brace-expansion-lockfile passing); `npm run lint:ci` clean (0 errors; 2 pre-existing timing- assertion warnings in files this PR does not touch); node scripts/lint-phase-id-drift.cjs clean; node scripts/changeset/lint.cjs ok. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): preambleCutoff identity is offset- and child-aware (round-3 Blocker 1) Gate-2 round-3 re-verify Blocker 1 (NEW): the round-2 B1 deviation (39c42a89) threaded `selectedBracketId` as the real value at computeSectionEnd but as bare `null` at the preambleCutoff scan. The deviation's rationale — "the selected heading's own occurrence is always a correct earliest answer" — was right, but `null` disables the same-milestone check for EVERY candidate, not just the selected one. Any bracket-shaped heading earlier than the selected milestone was accepted as a boundary regardless of identity: a same-id checklist/ overview heading preceding the version-bearing selected heading (cases A, B — the version lands on the LATER half of a split, or a plain overview heading with no "(Phase Details)" spelling), or a DIFFERENT-id bracket-shaped PROSE heading with no children of its own sitting above the current milestone's content (case D — `## [ADR.612] Heading convention used by this roadmap`). In every case the region between that false boundary and the real sectionStart was silently dropped — a completed phase vanished and `state sync` persisted a confident 0% where base and round-1 both correctly wrote 50%. Regression vs base AND round-1 (not merely "under-fixed", per the round-3 review's own severity note). Fixed with two changes, both scoped to the preambleCutoff scan only (computeSectionEnd already threads the real `selectedBracketId` and is untouched): (a) `h.offset === sectionStart` now bypasses BOTH the same-milestone check inside isBracketMilestoneBoundary (passing the REAL `selectedBracketId` for every other candidate) and the new child rule below — the selected heading's own position is definitionally the correct answer, so neither discriminator should run against it (rejecting it would mean rejecting the heading against ITSELF). Closes cases A and B — verified by the reviewer's own one-liner, reproduced here. (b) New `bracketHeadingHasMatchingChild`: an otherwise-accepted candidate (bracket-shaped, not phase-tail-shaped, not the same id as the selected milestone) must ALSO have a next-strictly-deeper heading carrying its OWN bracket id to count as a boundary. This is what a genuine sibling milestone has (its own phase children share its bracket id — `## [GSD.01] Setup` / `### [GSD.01] 01: …`) and an unrelated bracket-shaped prose heading does not. A candidate with no such child at all (childless — e.g. an empty prior milestone, or one immediately followed by a same-or-shallower heading) degrades to NOT a boundary — over-inclusive, the safe direction: its own heading text stays in the preamble, contributing nothing to any phase count (not phase-shaped). Closes case D, which (a) alone does not — verified: without this rule, `[ADR.612]`'s prose heading is indistinguishable from a genuine prior sibling at this site. As a side effect, also neutralizes Nit 2 (a colon-less `[GSD.02] 05` heading spuriously terminating the preamble): a colon-less bracket heading is not phase-tail-shaped so isBracketMilestoneBoundary alone would accept it, but it is — precisely because it is malformed/ incomplete rather than a real milestone — childless, so the child rule rejects it too. Pinned. Known interaction with the fence-blind SELECTION path (disclosed by the reviewer, not introduced here, tracked for the next commit): when `sectionPattern` selects a FENCED version-bearing heading (an extremely pathological shape — a fenced example whose text happens to match STATE's asserted version), no token exists at `sectionStart`, so the `h.offset === sectionStart` bypass never fires and the loop falls through to the ordinary same-id / child-rule checks. This composes with the round-3 Major 1 fix (next commit) rather than introducing a new defect — SELECTION itself is untouched by any of this — but is worth stating plainly rather than rediscovering. Tests: new describe block "#612 PR-2 Blocker 1 round-3: preambleCutoff identity is offset- and child-aware" — RED-turned-GREEN for cases A, B (rv-attack1) and D (rv-attack1b) with syncedTotal()/syncedPercent() assertions (the persisted 0% is the point), a PIN for a genuine prior sibling with real children (still excluded), a PIN for a childless prior sibling (degrades to not-cutting, over-inclusive/safe), a PIN for the colon-less Nit 2 shape, and the reviewer's rv-mech1 mechanism re-run as a proper test (scope now equals the full input document, phaseCount 2, both dirs accepted). Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 937/937 pass (930 baseline + 7 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): fence-aware version/emoji half of preambleCutoff on the bracket branch (round-3 Major 1) Gate-2 round-3 re-verify Major 1 (NEW): ff6bf0a8 (round-2 Blocker 3) made the BRACKET half of preambleCutoff's "earliest milestone-shaped heading" search fence-aware, but left the VERSION/emoji half a raw `content.match` even on the bracket branch. A fenced VERSION-BEARING example heading in a bracket repo's preamble (ADR-612's own docs illustrate the LEGACY heading shape exactly this way, inside a fenced authoring-guide block) was still textually the earliest match for that raw regex, winning the min() and un-suppressing a wrong persisted 75% that base correctly suppressed (rv-attack3c fixture C1: base suppressed the percent entirely — `isMilestoneBounded` false — HEAD wrote 75% where truth is 50%). Fixed by deriving the version/emoji half from the SAME fence-aware `currentMilestoneHeadings` token list as the bracket half, on the bracket branch only — the exact `/^Phase\s+\S/i` / `/v\d+\.\d+|✅|📋|🚧/i` pair `computeSectionEnd` already uses against `h.text`. The non-bracket (legacy) path is untouched: it keeps the raw `content.match`, byte- identical to before, including its own fence-blindness (repro12's LEGACY control, pinned unchanged in the round-2 Blocker-3 test block — not re-pinned here to avoid duplicating an already-covered assertion). Not rated Blocker (per the review) because it is not a regression vs round-1 and the fixture (a version-BEARING fenced example in a bracket repo) is rarer than the already-fixed bracket-heading case; still fixed now rather than disclosed, per this arc's own precedent (every prior "disclose instead of fix" call in this PR has been overturned on re-review). Tests: new describe block "#612 PR-2 Major 1 round-3: preambleCutoff's version/emoji half is fence-aware on the bracket branch" — RED-turned- GREEN for case C1 (readTotal + syncedPercent, so the persisted 75% is directly observed, not just the read-path total), PIN for case C2 (the already-fixed fenced-bracket-heading shape, unchanged). Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 939/939 pass (937 + 2 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): correct changeset claims + mark runtime-gated BASE_SITES row (round-3 minors) Gate-2 round-3 re-verify Minor 2: three changeset sentences in .changeset/2761-bracket-read-tolerance.md were overstated in a new direction after round-2: - The split-milestone claim ("across a milestone split over two headings") was true only when the version-bearing heading came FIRST (repro8 case 1); false when it came LATER (round-3 Blocker 1 case A). Now restated to say plainly "with the version-bearing heading in EITHER position" — true again now that round-3's Blocker 1 fix lands earlier in this range. - The "counted from the phases... rather than from every directory on disk" claim was false on cases A/B/D (a strict subset of the milestone's own phases). Restated as "ALL of the phases... not a subset", and extended to state that an unrelated bracket-shaped heading with no phase children of its own (case D's `[ADR.612]` shape) does not truncate the milestone either — true now, not before. - "Each widened read is SELECTED by the project's phase_id_convention" was literally false for BRACKET_PHASE_TAIL_RE, which is RUNTIME-gated (via its only caller, isBracketMilestoneBoundary, itself only consulted when bracketBoundaryActive) rather than selector-gated. Restated behaviourally: "every widened read ENGAGES only when the project's resolved phase_id_convention is bracket" — true for both gating mechanisms, so it no longer implies a selector call this site does not make. Minor 1: the STRUCTURAL IDENTITY test's BASE_SITES row for BRACKET_PHASE_TAIL_RE (added in the B2 commit) asserts a property of `phaseHeadingPrefixSrcFor` — the function — not of the call site; it would pass unchanged even if the site were deleted. Safety at that specific site rests entirely on a runtime gate the test cannot see. Added `runtimeGated: true` to the row and threaded it into the generated test's own title (`… [runtime-gated, not selector-covered]`), so the gating mechanism is visible in test OUTPUT, not only in a source comment that could drift silently. No production code changed. Targeted suite green (48/48 in the affected file); `node scripts/changeset/lint.cjs` ok; eslint clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): harden round-3 preamble cutoff — subtree child scan + level cap Team-lead review of f87bba0e found two edges in the round-3 preamble- cutoff code, both hardened here. AMENDMENT 1 — bracketHeadingHasMatchingChild (2e06aef5) checked only `headings[index + 1]`, the IMMEDIATE next heading, not the candidate's whole subtree. A genuine prior sibling milestone whose section opens with a non-bracket subsection before its first phase heading (`## [GSD.01] Setup` / `### Notes` / `### [GSD.01] 01: Old`) was therefore wrongly rejected as a boundary — its real phase heading sits TWO headings deep, not one — leaking its entire section into the preamble unstripped. CONFIRMED RED, not merely theoretical (built and ran the fixture against f87bba0e before touching the fix, per instruction): scope membership DOES drive the disk-side filter on this shape. `GSD.01-01-old`'s directory was wrongly admitted into the CURRENT milestone's filter via the leaked heading's qualified key (`GSD.01-01`) — 3/2/67% where truth is 2/1/50%. Fixed by scanning the candidate's full SUBTREE: continue past a non-matching deeper heading instead of returning false on the first one; only a same-or-shallower heading actually closes the subtree and yields "no match found". A candidate whose entire subtree closes with no same-id hit (including a genuinely childless one) still degrades to `false` — over-inclusive, safe, unchanged from before. AMENDMENT 2 — c483552a ported the version/emoji half of preambleCutoff to the token-based scan with no level cap; the raw `content.match(anyMilestonePattern)` it replaced was anchored `^#{1,3}\s+`. A level-4+ version-bearing heading in the preamble (`#### v2.0 notes`) therefore won the scan on the bracket branch where the raw pattern — and the legacy path, unaffected — ignores it outright. Fixed with `if (h.level > 3) continue;`, mirroring the depth-sanity cap isBracketMilestoneBoundary already applies to the bracket half of this same scan. Tests: new describe block "#612 PR-2 round-3 hardening: subtree child scan + level cap on preambleCutoff" — - RED-turned-GREEN for the Notes-intervening fixture: exact 2/1/50 (was 3/2/67), plus the disk-filter observable (`GSD.01-01-old` now correctly excluded). - PIN for the level-4 preamble heading: the scope now PRESERVES the heading's text (was silently dropped before this fix — harmless in this minimal fixture's total_phases specifically, since the dropped text carries no phase-shaped content, but a real correctness gap against the raw pattern's own ceiling) — asserted via scope content, not total_phases, since that number is invariant here either way. - PIN for the LEGACY control on the same level-4 shape — unchanged, confirming the raw content.match path is untouched. Re-verified the existing genuine-prior-sibling and childless-sibling pins (round-3 Blocker 1 commit) still pass under the subtree scan — both fixtures' outcomes are unchanged since their same-id hit (or its absence) was already at the first deeper heading. Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 942/942 pass (939 + 3 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed files. Full `npm test` + `npm run lint:ci` deferred to the team lead's own run per instruction. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): bracketHeadingHasMatchingChild requires a same-id PHASE child (round-4 Blocker 1) Gate-2 round-4 re-verify Blocker 1 (NEW): the round-3 hardening's subtree scan (fbfd0fca) proved SAME-ID-NESS but never asked whether the matching child was PHASE-shaped. Case F1 re-opens round-3's case D one heading later: `## [ADR.612] Heading convention` is followed by its OWN sub-heading `### [ADR.612] Examples` — same bracket id as the candidate, but MILESTONE-shaped (a name, no digit-then-colon), not a phase. Same-id-ness alone satisfied the subtree scan and re-cut the preamble at exactly the shape the round-3 hardening was written to close. Failing input: `## [ADR.612] Heading convention` / `### [ADR.612] Examples` (prose) / `### [GSD.02] 01: One` (the current milestone's own first phase, now unreachable) / `## [GSD.02] v2.0: Foundation` / `### [GSD.02] 02: Two`. Truth 2/1/50. HEAD read 1/0/0, and `state sync` reported "nothing to do" (exit 0, `{synced:true,changes:[]}`) because its wrong 0% happened to equal the STATE.md seed — a half-done milestone read as untouched with no write-path signal at all. Fixed with the reviewer's one-conjunct addition: a same-id child only counts if it is ALSO phase-tail-shaped (`BRACKET_PHASE_TAIL_RE`) — the same single-owner discriminator `isBracketMilestoneBoundary` already uses one level up for the identical distinction (phase vs milestone), reused here rather than re-derived. This is exactly what the changeset's own wording already claimed ("no phase children of its own") — the code now matches the sentence rather than the other way around. Docstring updated at the function itself: the rule is "same-id PHASE child", not "same-id child". Tests: new describe block "#612 PR-2 round-4 Blocker 1: the same-id child must be PHASE-shaped" — RED-turned-GREEN for F1 with syncedTotal()/syncedPercent() (the persisted 0% — and the report-nothing-to-do write-path silence — is the point), PINs for F11 (colon-less same-id child) and F11b (bullet-only phase list): both correctly stay excluded either way, and the leak the phase-shape requirement newly creates for these two shapes is INERT — a colon-less heading forms no qualified key (getMilestonePhaseFilter's own phase-heading pattern requires the colon too) and a bracket bullet never matches the legacy-only BULLET_PHASE_LINE_PATTERN — confirmed directly via getMilestonePhaseFilter, not merely inferred. Re-verified the four existing child-rule pins (F2 subtree-closure, F3 deep-nested same-id, F4 level-4 same-id, F5 childless-at-EOF) are unaffected by the phase-shape requirement, since every one of them already used a colon-bearing same-id child. Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 946/946 pass (942 + 4 new). Zero drift measured across the full F1-F12 corpus except F1 itself (F9/F10/F12 remain red, deferred to the separate Major 1 fix). node scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): fence-aware phase counting, milestone bounding, and bracket-fallback selection (round-4 Major 1) Gate-2 round-4 re-verify Major 1 (NEW): roadmapPhaseCount is a fence-blind raw `.exec()` over the scope string, duplicated in TWO independent copies (buildStateFrontmatter's read path, cmdStateSync's write path). With the bracket alternative now compiled into it (#612), a fenced EXAMPLE phase heading in the preamble inflates total_phases and persists a wrong percent that base got right. Two further fence-blind sites participate: isMilestoneBounded (a raw `.test(roadmapRaw)`) and the bracket-fallback SELECTOR inside extractCurrentMilestone (a raw `content.matchAll`, only reachable when version-string selection finds nothing). Failing inputs: - F10 (clean isolate, version-bearing selection): a fenced `### [GSD.02] 05: Example phase` in the preamble inflates total_phases 2->3, persisting 33% where truth is 50%. LEGACY control on the same shape is correct on every build — not a pre-existing hazard being inherited, bracket-only. - F9 (version-less selection): a fenced example carrying the project's OWN milestone id additionally confuses the bracket-fallback selector (the fenced heading gets SELECTED), compounding with the same fence-blind counter. base suppressed the percent; round-1 and HEAD both wrote 33%. - F12 (isMilestoneBounded isolate): the ONLY `[GSD.02]` heading in the document is inside a fence, and the asserted milestone genuinely has no section at all — HEAD persisted 67% where base correctly suppressed the percent (the milestone is absent from the roadmap). Fixed at the CONSUMER level, not the producer — extractCurrentMilestone's returned scope string is deliberately UNCHANGED, since every other consumer of that string needs its full content fidelity and legacy identity forbids touching the shared string (this branch's own precedent, ff6bf0a8/c483552a, was producer-level; here the ruling is consumer-level because the string is shared far more broadly than the two round-3 fixes' narrower producer edits): (a) New `countRoadmapPhaseHeadings` (src/state.cts, immediately above extractRetiredPhaseNumbers) — ONE shared implementation for both call sites, replacing two independently-maintained copies. BRACKET convention counts via `tokenizeHeadings(scope)` at levels 2-4, testing each heading's hash-stripped text directly — fence-aware by construction, since tokenizeHeadings never produces a token for a fenced line. LEGACY convention keeps the exact pre-existing raw `.exec()` loop, byte-for-byte. A pre-existing, deliberately PRESERVED asymmetry between the two original call sites — the read path always excluded a bare `/^999\b/` token, the write path never did — is threaded through as an explicit `includeUnconditional999Check` parameter per call site, so sharing the implementation does not silently unify (and thereby move) either total. (b) isMilestoneBounded's bracket branch now scans `tokenizeHeadings(roadmapRaw)` for a matching heading (level <= 3) instead of a raw regex test. Legacy version-string branch untouched. (c) The bracket-fallback SELECTOR now builds its candidate set from `tokenizeHeadings(content)` instead of `content.matchAll`, reconstructing a match-shaped array so every downstream consumer of `headingMatches` sees the identical shape the raw-regex path always produced. This is the ONE site in this entire arc where SELECTION itself changes — selection SEMANTICS are otherwise unchanged (same pattern, same first-match-wins by document order); only the candidate set is now fence-aware. Pinned that unfenced selection is byte-identical. Zero drift measured across the full historical corpus (repro2-13, rv-attack1/1b/3c, rv-mech1, rv2-amend1/2, and F1-F11b) except the three target fixtures. Tests: new describe block "#612 PR-2 round-4 Major 1: four fence-blind sites on the bracket path" — RED-turned-GREEN for F10 (with syncedTotal()/syncedPercent()) and F9 (both layers), PINs for F10's LEGACY control and F10c (non-phase-shaped fence, unaffected either way), RED-turned-GREEN for F12 (asserts the percent KEY is absent from `state json`'s output and that `state sync`'s body stays at its unmodified seed — the persisted-suppression signal, not merely a total_phases number), and an explicit PIN that unfenced bracket-fallback selection (first real milestone-shaped heading wins, no fences involved) is unaffected. Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 952/952 pass (946 + 6 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean on all three changed files. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): correct docstring overstatement + stale consumer-count sentence (round-4 minors) Gate-2 round-4 re-verify Minor 1 + Nit 1. No production code changed. Minor 1: bracketHeadingHasMatchingChild's own docstring said a rejected (no-same-id-PHASE-child) candidate's degrade "contributes nothing to any phase count" — true of the candidate's OWN heading text, but not of its SUBTREE, which is what actually stays in the preamble. F7 (`## [GSD.01] Setup` / `### [GSD.07] 01: Foreign`) shows a DIFFERENT-id bracket PHASE heading inside a rejected candidate's subtree DOES form a qualified key and CAN admit a foreign directory — 3/2/67%, stable across base, round-1 and HEAD (base via its own pass-all degrade). Not a regression, still the declared over-inclusive / never-under-inclusive safe direction — the comment now says that, with F7's numbers cited, at the call site that actually decides `isBoundary` (roadmap-parser.cts's preambleCutoff loop) rather than only at the helper's own definition. Minor 2 (changeset) — VERIFIED, no wording change needed: re-ran F1, F9, F10, F12 at this HEAD. The "no phase children of its own... does not truncate it either" sentence (naming the `[ADR.612]` shape directly) is now literally true — F1 reads 2/1/50. The "counted from ALL of the phases... not a subset" sentence is now true on every measured shape — F1/F9/F10 all read 2/1/50, F12 correctly suppresses the percent. No carve-out for F9/F10 is needed since round-4 Major 1 (3be5c412) closes both; per the fix-round instruction to "only carve out anything genuinely left," nothing is. Nit 1: tests/adr-612-bracket-heading-selection.test.cjs's runtimeGated row claimed `BRACKET_HEADING_INTRO_RE` has "no other consumers" — true when round-3's f87bba0e wrote it, stale since 2e06aef5 (round-3's own earlier commit) had already added two more uses inside bracketHeadingHasMatchingChild. Corrected to state the true count (three consumers) and re-confirm the conclusion is unaffected: all three are still nested inside the same bracketBoundaryActive runtime gate, and BRACKET_HEADING_INTRO_RE is built from BRACKET_ID_SRC, not phaseHeadingPrefixSrcFor, so it was never a selector site regardless of consumer count. Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 952/952 pass (comment-only changes, no count movement). eslint clean; node scripts/changeset/lint.cjs ok. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): restore the bracketId guard in countRoadmapPhaseHeadings (round-5 Blocker 1) Gate-2 round-5 re-verify Blocker 1 (NEW, introduced by 3be5c412): the merge that created the shared countRoadmapPhaseHeadings helper dropped the `bracketId && ` guard both original inline loops carried before calling isSentinelPhaseId. Every other isSentinelPhaseId call site in src/ (roadmap-parser.cts, roadmap.cts, validate.cts x2, verify.cts) keeps the guard; state.cts's shared counter was the only one of seven without it. When the phase-heading-intro grammar's LEGACY alternative matches (a `### Phase 00:` heading in a `phase_id_convention: "bracket"` repo — the mid-migration shape this PR exists for), the bracket capture group is `undefined`, so the unguarded call became `isSentinelPhaseId("undefined-00", 'bracket')` — measured TRUE, so phase 00 (and 000, 0a, 0.5, 999.1 — any token whose splice with the literal string "undefined" happens to fall in a sentinel range) was silently dropped from the denominator. `getMilestonePhaseFilter` (which still carries its own guard) counts the phase and admits its directory regardless, so the filter and the counter disagree — a half-done milestone reads as 100% complete, persisted. One-line fix, restoring the guard every sibling call site already has: if (bracketId && isSentinelPhaseId(`${bracketId}-${token}`, 'bracket')) continue; Line count: `git diff --stat src/state.cts` -> 1 file changed, 1 insertion(+), 1 deletion(-). Tests: new describe block "#612 PR-2 round-5 Blocker 1: countRoadmapPhaseHeadings restores the bracketId guard" — RED-turned- GREEN for G3 (3/2/67, was 2/2/100) and G3d (the mixed bracket+legacy mid-migration shape, same numbers) with syncedTotal()/syncedPercent(), PIN for G3's legacy control (unaffected), PIN for G3b (isolates the counter with no directory to admit), PIN for G3c (legacy 01/02 only, no sentinel-shaped token present). Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 957/957 pass (952 + 5 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): extractRetiredPhaseNumbers is fence-aware on the bracket path (round-5 Major 1) Gate-2 round-5 re-verify Major 1 (NEW) — a FIFTH fence-blind site on the bracket path, missed by 3be5c412's own enumeration of "four". extractRetiredPhaseNumbers' line scan (`scope.split(/\r?\n/)`) has no fence awareness. This PR compiles the bracket alternative into `introSrc` ("the retirement filter has to widen with the counter it protects" — the function's own pre-existing comment), so a FENCED authoring EXAMPLE showing the #1514 retirement gesture in bracket spelling is now indistinguishable from a real one: it retires a genuine phase, shrinking the denominator and persisting a confident 100% where base correctly read 50%. Fixed with the SAME consumer-level ruling this arc has used at every other fence-blind site, reusing markdown-sectionizer's existing exported `stripFencedCode` rather than hand-rolling a second fence parser (single-owner rule) — retirement lines are BULLETS, not headings, so `tokenizeHeadings` doesn't serve here; `stripFencedCode` is the general-purpose fence stripper the tokenizer itself is built on. Gated on `convention === 'bracket'`; the LEGACY line scan stays the raw `scope` string, byte-identical — its own fenced-example hazard is pre-existing (wrong at base too) and out of scope. Line count: `git diff --stat src/state.cts` -> 1 file changed, 9 insertions(+), 2 deletions(-) — one import added, four lines inside the function (a comment + the `scanScope` computation + the changed `.split()` call). Tests: new describe block "#612 PR-2 round-5 Major 1: extractRetiredPhaseNumbers is fence-aware on the bracket path" — RED-turned-GREEN for G2 (fenced example in the preamble) and G2b (the same example placed INSIDE the milestone section, ruling out a preamble-scoping artifact — the site itself was fence-blind wherever the fence sits), PIN for the LEGACY control (unchanged, pre-existing, out of scope — base is wrong on this shape too). Also folds in the "four fence-blind sites" correction: 3be5c412's commit message and any restatement of it should read FIVE going forward; this commit's own message states the count correctly. Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 960/960 pass (957 + 3 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): state sync's counter excludes the bracket 999 icebox token (round-5 Major 2) Gate-2 round-5 re-verify Major 2 (NEW) — `includeUnconditional999Check` left `state json` and `state sync` reporting different totals for one bracket repo. Under bracket, READING-B puts the sentinel in the bracket, so `isSentinelPhaseId("GSD.02-999", 'bracket')` is false — the `/^999\b/` TOKEN rule is the only thing excluding a `### [GSD.02] 999:` icebox heading, and it ran on the read path (buildStateFrontmatter, `true`) and on getMilestonePhaseFilter (unconditional), but not on cmdStateSync's own counter (`false`). One `state sync` call could leave a single STATE.md with its own frontmatter (percent 50, from the read-path re-sync inside writeStateMd) and body (percent 33, from the write-path counter that alone still counted the icebox heading) disagreeing — falsifying this PR's own stated invariant that sharing countRoadmapPhaseHeadings made "the two counters must see the same phases" structural. Functional change is one argument, exactly as specified: the write call site now passes `syncConvention === 'bracket'` instead of the literal `false`. `syncConvention === 'bracket'` is `false` for every non-bracket value, so the LEGACY path resolves to the exact same `false` it always did — this file's own pre-existing, deliberately- unchanged read/write divergence on that path is untouched. The READ site (`:1860`) is NOT touched — its historical behaviour applied `/^999\b/` to legacy and bracket alike, so changing it would move legacy READ totals, exactly the class of mistake this arc's own Blocker 1 (this round) was. Line count: the functional change is ONE argument (`false` -> `syncConvention === 'bracket'`); the surrounding comment was rewritten because the previous one asserted the now-superseded behaviour ("preserving this file's pre-existing... divergence... a bare 999 token is not excluded here") and leaving it would mislead the next reader — not a structural change. Tests: new describe block "#612 PR-2 round-5 Major 2: state sync excludes the bracket 999 icebox token like the read path" — RED-turned-GREEN for G1, asserting `state sync`'s body percent equals `state json`'s own percent (both 50, not 33 vs 50), PIN for G1's legacy control (33 vs 50 unchanged, deliberately). Targeted suite green: `node --test tests/adr-612-*.test.cjs tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs` -> 962/962 pass (960 + 2 new). node scripts/lint-phase-id-drift.cjs clean; eslint clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): restore indent parity at the two line-start-anchored bracket-heading reconstructions (round-5 Minor 1) `HeadingToken.offset` (tokenizeHeadings) is the LINE-START character offset, not necessarily the `#` character's own offset — a ≤3-space-indented ATX heading has both. Two round-4 reconstructions built on tokenizeHeadings inherited this gap and accepted indented headings their raw, line-start- anchored predecessors (`^#{1,3}\s+\[...`) never matched: 1. roadmap-parser.cts's bracket-fallback SELECTOR (extractCurrentMilestone, ~line 377) — an indented, version-less `[GSD.02]` milestone heading could be reconstructed into headingMatches, then mis-parsed downstream (selectedBracketId null, level fallback to 1), leaking a SIBLING milestone's phases into the counted scope (G6: HEAD read 3/2/67 instead of 2/1/50 — a real phase heading's own directory belonging to the NEXT milestone got counted). 2. state.cts's isMilestoneBounded (~line 1571) — the same gap let an indented-only `[GSD.02]`-shaped heading wrongly bound a milestone absent from the roadmap, un-suppressing a percent that should stay suppressed (mirrors round-4's F12 fenced-only case, but via indentation instead of a fence). Fix: one added conjunct per site — `content[h.offset] === '#'` (source-named `roadmapRaw` in state.cts) — filtering to tokens whose LINE-START offset IS the `#` character, i.e. exactly the set the raw line-start-anchored regex would ever have matched. Restores byte-for-byte raw parity; no other logic in either function changes. computeSectionEnd and the preamble version/ emoji-token scan are untouched, as instructed — they consumed tokenizeHeadings output before this arc and are out of scope here. Also corrects roadmap-parser.cts's now-provably-false docstring claim that `h.offset` is unconditionally "the same `#`-character coordinate space `content.match().index` used" — true only for the survivors of the new filter, not for every token tokenizeHeadings produces. Line count: the FUNCTIONAL change is exactly 2 lines (one added `&&` conjunct per call site — `git diff --stat` on the two source files shows 20 insertions/7 deletions, but only those 2 lines change behavior; the rest is docstring/comment rationale, per this round's "state the line count" ask). TDD: both fixtures verified RED at HEAD before this commit, GREEN after, via /tmp/pr612rev/rv5-attack.cjs G6 and a locally-authored isMilestoneBounded- isolating probe (G6 alone doesn't distinguish the two sites — its unindented phase headings already satisfy isMilestoneBounded's loose prefix regex either way, so a second, indentation-only fixture was needed to prove that site's fix is not a no-op; verified by temporarily reverting just that one conjunct, confirming 100%-wrongly-bounded RED, then restoring it, confirming suppressed-percent GREEN). New tests (adr-612-bracket-phase-counting.test.cjs): - RED (G6): indented version-less bracket milestone heading — 2/1/50, not the pinned-before-fix 3/2/67. - PIN (G6c unindented control): identical document, no indent — 2/1/50 unaffected on every build. - RED (isMilestoneBounded site, indented-ONLY): mirrors round-4's F12 shape (fenced-ONLY → indented-ONLY) — percent stays suppressed instead of the pinned-before-fix wrongly-bounded 100%. Full G1-G10 (rv5-attack.cjs) + G2b/G3c/G3d/G6c (rv5b.cjs) re-verified zero-drift against TRUTH after this change. Targeted suite (adr-612-*, roadmap-parser, state, verify): 962 -> 965 (+3), 0 fail. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): changeset discloses counting-set narrowing + correct stale consumer-count sentence (round-5 minors) FIX 5 (Minor 2): .changeset/2761-bracket-read-tolerance.md did not disclose that bracket phase-heading counting is narrower than the raw-regex predecessor in two ways the review's G4/G5 fixtures surfaced: a level-5 heading (`##### [GSD.02] 05: ...`) is no longer counted (the counter's tokenizeHeadings scan caps at level 4, matching the selector/isMilestoneBounded ceiling), and a space-less heading (`###[GSD.02] 05: ...`) is no longer counted (CommonMark requires ≥1 space/tab after the hashes, which tokenizeHeadings correctly enforces and the old raw regex did not). Both G4 and G5 moved from round-1's wrong (inflated) values back to base's original values as an incidental side effect of routing through tokenizeHeadings — never a deliberate feature of this PR, and previously undocumented. One clause added to the existing run-on paragraph; no other wording in the changeset touched. FIX 6 (Nit 1): tests/adr-612-bracket-heading-selection.test.cjs:76 — `BRACKET_PHASE_TAIL_RE` has TWO consumers as of round-4's 65d257ce (isBracketMilestoneBoundary's own use, plus bracketHeadingHasMatchingChild's same-id-PHASE-child conjunct), not the "no other consumers" the comment claimed. Same correction pattern round-4 already applied to this row's BRACKET_HEADING_INTRO_RE neighbor (that sentence's own staleness was fixed in 4d7184b8): note the true consumer count, confirm both stay nested inside the same bracketBoundaryActive runtime gate (verified at src/roadmap-parser.cts:178 and :250, both reached only through the `if (bracketBoundaryActive)` block starting at :529), and record which commit and which fix introduced the drift. Comment-only; no assertion logic changed. Line count: 2 files, 8 insertions / 2 deletions total — one added clause in the changeset (1 line changed) and one comment block replacing the single stale line in the test file (6 comment lines replacing 1). Verified: targeted suite (adr-612-*, roadmap-parser, state, verify) unchanged at 965/965 pass (comment/prose-only diffs, no test count change). `node scripts/changeset/lint.cjs` and `npx eslint` on the touched files both clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): restore the bracketId guard on the bracket-only /^0\b/ sibling rule (round-6 Blocker 1) Round-5's Blocker 1 was `isSentinelPhaseId("undefined-00")` — the merge that introduced the shared counter dropped the `bracketId &&` guard on the sentinel check. This is the identical failure one line further down, in the sibling rule this PR itself added: when the phase-heading grammar's LEGACY alternative matches (`### Phase 0:` in a `phase_id_convention: "bracket"` repo — the mid-migration shape this PR exists for), `bracketId` is `undefined`, and the unguarded `/^0\b/` fires on the bare token anyway. Neither the LEGACY branch of this same function nor `getMilestonePhaseFilter` has a `/^0\b/` rule at all, so the filter counts the phase and admits its completed directory while the counter refuses to count its heading — a milestone with an unstarted phase 02 persists as a confident 100%. `/^0\b/` matches `0` and `0.5` (word boundary before the `.`) but not `00` (no boundary between the two zeros), which is exactly why round-5's G3/G3d fixtures (`### Phase 00:`) never tripped this one — same defect class, different token spelling. Fix: one word, mirroring the guard round 5 restored two lines above — `if (/^0\b/.test(token)) continue;` -> `if (bracketId && /^0\b/.test(token)) continue;`. Expected and intentional side effect: `roadmap analyze` and `state json` now disagree again on this bracket-repo shape (analyze phase_count=2, json total_phases=3) — exactly as they already do under the legacy convention today (verified via /tmp/pr612rev/rv6c.cjs on both conventions). That is the counter regaining agreement with `getMilestonePhaseFilter` (the tighter constraint — it is what actually decides `completed_phases`), not a new break; the counter/filter disagreement is what was wrong. Out of scope, deliberately NOT fixed here (Minor 1, disclosed via a PIN test only): the bracket-SPELLED `### [GSD.02] 0:` shape has the same counter/filter disagreement, but reads 2/2/100 on base too — never closed by any build in this arc, so it is a pre-existing gap rather than a regression this commit could introduce. Line count: src/state.cts is exactly 1 insertion / 1 deletion (one word, `bracketId && ` prepended to the existing condition). TDD: T0 (`Phase 0:`) and T05 (`Phase 0.5:`) verified RED at HEAD before this commit (json 2/2/100, sync body 100%) via /tmp/pr612rev/rv6b.cjs, GREEN after (3/2/67 on both derivations, matching TRUTH). Zero-drift verified by diffing the FULL corpus (rv5-attack, rv5b, rv4-attack, rv-attack1, rv-attack1b, rv-attack3c, rv-mech1, rv2-amend1, rv2-amend2, rv6-attack H1-H19, rv6b) between a pre-fix and post-fix build: the only differing lines in the entire diff are T0, T05, and H14 — the three target fixtures. New tests (adr-612-bracket-phase-counting.test.cjs): - RED (T0) + PIN (T0L legacy control) - RED (T05) + PIN (T05L legacy control) - PIN (B0, bracket-spelled `0` — base-parity characterization, Minor 1, not fixed this round) Round-5's own G3 test (`### Phase 00:`) already serves as the T00 pin — `/^0\b/` never matched `00`, so it is unaffected and untouched. Targeted suite (adr-612-*, roadmap-parser, state, verify): 965 -> 970 (+5), 0 fail. `lint-phase-id-drift.cjs` and `npx eslint` on touched files clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): changeset re-attributes the phase-count level cap + discloses the bare-0 carve-out; correct two stale test comments (round-6 Minor 1 + Nits) FIX 2 (Minor 1 — disclosure only, NOT a code fix): the bracket-SPELLED `### [GSD.02] 0:` / `0.5:` shape has the same counter/filter disagreement round-6's Blocker fixed for the legacy spelling, but it reads 2/2/100 on BASE too — never closed by any build in this arc, so it is a pre-existing gap rather than a regression this round could introduce. Two changes: - Pinned as a base-parity characterization: new PIN test (B0) in 04b5a95f's describe block asserting the exact unchanged value with a comment stating why it's deliberately not touched. - .changeset/2761-bracket-read-tolerance.md: one qualifying clause added to the "counted from ALL of the phases … not a subset" sentence — a bare `0`/`0.x` phase token (however spelled) keeps `roadmap analyze`'s own pre-existing sentinel reading under bracket too, so it stays excluded from these counts. Carried over, not newly introduced by this PR — `roadmap analyze` has always read it this way. FIX 3(a) — same changeset paragraph misattributed the phase counter's 2-4 level cap to "the milestone-boundary machinery in this PR" (the selector, `isMilestoneBounded`, the preamble scan) — that machinery caps at `###` (level ≤3), not 2-4. The 2-4 cap belongs to `getMilestonePhaseFilter`'s own phase scan. Re-pointed the attribution; the paragraph's earlier, correct ≤3 claim (selector/isMilestoneBounded) is untouched. FIX 3(b) — tests/adr-612-bracket-heading-selection.test.cjs:76-82 (added by 1395bd89, round-5's own Nit-1 correction) claimed both `BRACKET_PHASE_TAIL_RE` consumers are reached "only through the `if (bracketBoundaryActive)` block starting at :529". Verified at HEAD: `bracketHeadingHasMatchingChild` is (only caller :593, inside that block). `isBracketMilestoneBoundary` is not — it has two callers, an inline `bracketBoundaryActive &&` conjunct at `:473` (inside `computeSectionEnd`) and the `:529` block at `:567` — the very fact this row's own earlier "exactly two callers" paragraph already stated correctly. Corrected the mechanism claim; the CONCLUSION (every consumer is still gated on the same flag) is unchanged, exactly as round-5's own Nit-1 fix left round-4's conclusion unchanged when it corrected the consumer count. FIX 3(c) — tests/adr-612-bracket-phase-counting.test.cjs:2311,2340 still said "four fence-blind sites" after round-5 (357ba671) added a fifth (the retirement scan) in its own block below. Reworded both the section comment and the `describe()` label to read as historical scoping of round-4's own fix ("the four sites known at round 4 … a fifth was found at round 5, see its own block below") rather than a live exhaustive claim. Line count: 3 files, changeset 1/1, heading-selection test 17/8, phase-counting test 6/2 (comment/prose-only; B0's own PIN test landed in 04b5a95f alongside T0/T05 since it was investigated as part of that same Blocker's defect class, not in this commit — noted here for the record). Verified: targeted suite (adr-612-*, roadmap-parser, state, verify) unchanged at 970/970 (comment/prose-only diffs, no test count change). `npx eslint` and `node scripts/changeset/lint.cjs` both clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): W021's bracket remediation hint stops pointing at a command that hard-errors (round-7 Minor 2) `checkBracketCoherence`'s W021 (added by 94abf5df) attached the fix hint `Run \`gsd-tools roadmap upgrade --convention bracket\` to migrate (dry-run by default)` to every bracket-convention W021 — both sub-checks (`missing-bracket` and `mismatch`) share the single `addIssue` call at src/verify.cts:2255-2256. But `roadmap-command-router.cts:204` throws unconditionally for any `--convention` value other than `milestone-prefixed`: $ gsd-tools roadmap upgrade --convention bracket Error: Only --convention milestone-prefixed is supported This contradicts the PR's own two disclosures: the changeset ("`bracket` is a READ-path opt-in until the migrator and write path land") and docs/CONFIGURATION.md:188 ("There is no bracket migrator and no bracket emit yet"). Reachability is the exact mid-migration repo this PR targets — any bracket project with one un-migrated heading gets an unfollowable instruction on every `validate health`. Fix: one string. Replaced the hint with what a user can actually do today — manually align the heading's bracket milestone to its section — and named the tracked future landing (#612 PR-3) instead of a command that errors. The milestone-prefixed sibling hint at src/verify.cts:2240 (a different, already-functional convention/command pair — verified against roadmap-command-router.cts:65) is untouched. Line count: src/verify.cts is exactly 1 insertion / 1 deletion (one string literal). No test in the suite previously asserted this string's content (`grep -rn "upgrade --convention bracket" tests/` was empty), so the unfollowable hint shipped unpinned — `lint-fix-has-regression-test.cjs` would not have caught a string-only change without a new test. Added one: asserts the fix string both (a) does not match `--convention bracket` (the specific pinned-before-this-fix hazard) and (b) equals the new string exactly, covering the invariant a future edit must not re-break: no unsupported `--convention` value named in remediation text users are expected to run verbatim. Verified end-to-end (not just unit-level) via /tmp/pr612rev/rv7f.cjs: the W021 issue's `fix` field now reads the new string; `gsd-tools roadmap upgrade --convention bracket` (and its --dry-run variant) still correctly hard-error — that command remains unsupported, only the hint text changed. Targeted suite (adr-612-*, roadmap-parser, state, verify): 970 -> 971 (+1), 0 fail. `lint-phase-id-drift.cjs` clean; `npx eslint` on touched files: 0 errors (1 pre-existing unrelated no-elapsed-assertion warning, same file, same line this arc's prior rounds already disclosed). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): correct the bare-0 changeset disclosure + disclose W021's second sub-check (round-7 Minor 1 + Nit 1) FIX 1 (Minor 1) — round-6's bare-0 changeset clause (1395bd89) was wrong in three falsifiable ways: (a) Its own illustration (`### Phase 0:`) is exactly the LEGACY spelling 04b5a95f made COUNTED. The residual exclusion after that fix applies only to the BRACKET-spelled token (`### [GSD.02] 0:`) — the clause named the wrong shape as its example. (b) "excluded from these counts" over-scoped the carve-out. The phase-0 directory is admitted into `completed_phases`/`total_plans` in BOTH spellings (measured: B0 at HEAD has `completed_phases=2`, `accepts {"GSD.02-0-bootstrap":true}`). The exclusion that survives lives in `total_phases`/`phase_count` (heading counting) only. (c) The pre-existing "so `roadmap analyze` and `state json` report the same number" sentence (present since before this arc's bracket work) is now false for the bare-0 LEGACY-spelled shape: 04b5a95f's own commit message discloses this exact re-divergence as expected — `roadmap analyze` phase_count=2 vs `state json` total_phases=3 on T0 — matching the disagreement legacy already carries today. The changeset still asserted unconditional agreement. Rewrote both sentences: dropped the `### Phase 0:` example, scoped the carve-out to `total_phases`/`phase_count`, named the bracket-spelled token as the one that keeps analyze's sentinel reading, stated plainly that the legacy-spelled form in a bracket repo IS counted (the mid-migration guard), and qualified the "report the same number" claim to the `999` token, with the bare-0 legacy-spelled shape named as the one exception and why. FIX 3 (Nit 1) — `checkBracketCoherence` has always had two sub-checks (its own docstring: "Two sub-checks, both surfaced as W021") but both the changeset and docs/CONFIGURATION.md:188 described only the `mismatch` sub-check. The `missing-bracket` sub-check — which fires on every legacy-spelled heading in a bracket repo, the noisier of the two on a mid-migration project — was undisclosed in both places. One clause added to each. Line count: 2 files, 1 line changed each (both are single-paragraph/ single-row files; git diff --stat reports 1/1 per file though several distinct clauses were edited within that one line each). Verified: `node scripts/changeset/lint.cjs` clean. Targeted suite (adr-612-*, roadmap-parser, state, verify) unchanged at 971/971 (prose-only diffs, no test count change, no code touched). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): resolvePhaseIdConvention's docstring no longer claims loadConfig drops the key Upstream #2997 (aa7697fe, landed in `next` during this PR's final verification) added `phase_id_convention: get('phase_id_convention') ?? null` to `_baseConfig` in config-loader.cts — `loadConfig` now surfaces `phase_id_convention` in its resolved config. This function's docstring gave "loadConfig merges against CONFIG_DEFAULTS and drops keys it does not know, and `phase_id_convention` is not among them" as the reason for reading config.json directly instead of calling `loadConfig(cwd)`. That rationale is now stale against live `next`. Corrected the comment to state the two reasons that actually survive #2997: 1. The workstream->root federation this function performs is a standalone resolution run against a GIVEN cwd, not necessarily the same base a `loadConfig(cwd)` call elsewhere in the codebase would federate from. 2. Convention-ENUM validation is still #612 PR-4 work — this function returns the raw string unvalidated, exactly as the now-surfaced resolved key would. Noted that #2997 surfacing the key makes consuming it from resolved config (instead of re-reading config.json here) a natural PR-4 consolidation — not this PR's scope. The "cycles were never the obstacle" close and every other paragraph in the docstring (federation rationale, SCOPE note) are untouched; they still hold. Comment-only — no code behavior changed. This worktree's own history does not containaa7697fe(git merge-base --is-ancestor confirms neither branch is an ancestor of the other; not rebasing per instruction), so this is a textual correction against a documented external fact, not a functional sync with upstream. git diff --stat: src/planning-workspace.cts | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) Verified: `npm run build:lib` clean, `node scripts/lint-phase-id-drift.cjs` clean, `npm run lint:ci` exit 0 (same 2 pre-existing unrelated eslint warnings as every prior round this arc, 0 errors; lint-fix-has-regression-test PASS). Full suite not re-run per instruction (comment-only diff). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#2761): resolve phase_id_convention against the caller's workstream `resolvePhaseIdConvention` took no workstream, so it resolved from `planningDir(cwd)` — which falls back to `GSD_WORKSTREAM` only when its `ws` argument is `undefined`. Every caller that passes a workstream by ARGUMENT (they cannot set the env var per iteration) therefore read the convention from the ROOT config while reading that workstream's ROADMAP. Two reproduced consequences: - A workstream that explicitly declares its own `phase_id_convention` had it ignored. Flipping ONLY the root config between bracket and milestone-prefixed changed which milestone that workstream extracted. - `--workstream foo` and `GSD_WORKSTREAM=foo` disagreed on the same repo: the arg form fell through to the root config, the env form did not. `resolvePhaseIdConvention(cwd, ws?)` now forwards `ws` to `planningDir`, and both roadmap-parser call sites pass theirs — `extractCurrentMilestoneScoped` (which already reads STATE from `planningDir(cwd, ws)`) and `getMilestonePhaseFilter`'s lazy branch. `undefined` keeps the env fallback, so convention-less call sites are byte-identical; `null` still means "explicitly no workstream". The `undefined` vs `null` discriminator on `phaseIdConvention` is untouched — only the base the `undefined` branch resolves FROM moves. workstream-inventory's two sites (`countRoadmapPhases`, `inspectWorkstream`) passed a literal `null` where they meant `undefined`, pinning every workstream to the legacy grammar. On a bracket workstream whose milestone declares 3 phases that returned phaseCount 0 and fell back to the on-disk directory count; it now returns 3. A non-bracket workstream is unchanged (legacy control pinned). The workstream -> root federation is preserved: a workstream that declares no convention still inherits the root, as config-loader does. That inheritance is pinned so the fix cannot be over-applied into isolation. * fix(#2761): classify missing phase details per occurrence, not per token Under READING-B a phase's sentinel status lives in the BRACKET, so `[GSD.999] 01` and `[GSD.02] 01` share a token and are not the same phase. Both sides of the missing-detail check were keyed by the bare token anyway, and both produced false negatives in `missing_phase_details`: - The checklist scan built a token -> bracket-id Map, FIRST-WINS. Of two entries sharing a token, whichever the author wrote first classified both. With `- [ ] **[GSD.999] 01: Icebox**` above `- [ ] **[GSD.02] 01: ...**` the real phase inherited the icebox's sentinel verdict and vanished from the report; swapping the two bullets — same document, same phases — reported it. Pinned with a test asserting BOTH orders. - The detail set was `new Set(phases.map(p => p.number))`, also token-keyed, so `[GSD.02] 01`'s heading marked token `01` present and satisfied `[GSD.03] 01`, which has no heading anywhere. Order-independent, same class. Both sides now key on an occurrence key: the owner's `bracketQualifiedKey` (fold- and padding-insensitive, so `[gsd.2] 01` and `[GSD.02] 01` are one phase), falling back to a fold-normalized composite for the two shapes that grammar refuses — a token carrying its own hyphen, which splices to an id whose trailing segment the qualified-key grammar truncates (the hazard `getMilestonePhaseFilter` guards with its own `!token.includes('-')`), and any id it does not accept. With no bracket id the key IS the bare token, so the legacy path keeps its exact keys and dedupe order. The emitted value is unchanged — `missing_phase_details` stays an array of bare tokens, matching `phases[].number`. Only the classification moved to the qualified key, so two brackets' `01` both missing report `01` once instead of one silently covering for the other. * test(#2761): replace the two wall-clock ReDoS assertions with algorithmic bounds Both guards asserted elapsed wall-clock time — `Date.now()` against a 20s ceiling in the coherence suite, `process.hrtime.bigint()` against 1s in the read-tolerance suite. Those measure the host machine rather than the SUT and flake on a loaded CI runner (RULESET.TESTS.no-timing-assertion). Per RULESET.TESTS.delete-bad-tests they are REPLACED, not skipped, and the behavioral property each one guarded is preserved. The property is "the widened bracket patterns do not backtrack catastrophically", which is a claim about growth, so it is now stated by scaling the input instead of by timing it: - validate health runs the pathological unclosed bracket at 4,000 and 16,000 characters and must return the same correct result (no W021) at both. - The four reader entry points run five ReDoS shapes at 5,000 and 20,000 and must name exactly the phases each shape should name at each size, with the variant cardinality unchanged across the two. Catastrophic backtracking is superlinear, so a regression cannot complete the 4x leg under any ceiling, while a bounded matcher is indifferent to the scaling. The one attack that is well-formed-but-oversized now pins its reading precisely (`['1'.repeat(n)]`) rather than being lumped in with the malformed ones. A positive control asserts the readers still extract a well-formed bracket heading, so "names no phase" cannot pass by the readers being inert. `{ timeout }` is a hang backstop, not an assertion: it turns a runaway into a deterministic failure instead of a suite that never returns. * fix(#2761): give the bracket grammar one owner and teach the drift guard to see it The bracket milestone-intro grammar was re-typed verbatim in three readers — roadmap-parser's bracket-fallback selector, state's `isMilestoneBounded` and verify's `checkBracketCoherence` — which is exactly what #2761's own gate forbids ("no token literal outside src/phase-id.cts"). `check:phase-id-drift` reported clean the whole time: its detector only ever knew the phase-NUMBER token grammar, so the bracket class `[A-Z][A-Z0-9_]*` was invisible to it. Ownership. `src/phase-id.cts` now exports the class as `BRACKET_PROJECT_CODE_SRC` and the intro in the two shapes its readers need: `bracketMilestoneIntroSrcFor(milestone)` (pinned to one milestone) and `BRACKET_MILESTONE_INTRO_CAPTURING_SRC` (milestone captured). The pinned builder owns the pad2 spelling rule too — "canonical spelling only, not `0*N`" was previously restated in prose beside each copy, a convention two files had to keep agreeing on by hand. `BRACKET_ID_SRC`, `BRACKET_ID_PREFIX_RE` and `BRACKET_QUALIFIED_KEY_RE` now compose the class rather than re-spelling it. All three call sites consume the owner; the regex sources are byte-identical to what they spelled, asserted against hand transcriptions of the pre-fix lines. Guard. `scripts/lint-phase-id-drift.cjs` gains a bracket rule (`findBracketGrammarDrift`), wired into `scanRepo` and tagged `kind`. It deliberately does NOT copy the token rule's `line.includes(CANON_REF)` escape: that escape is line-level, and verify's copy referenced the owner for the MILESTONE field on the same line as the re-typed PROJECT-CODE class — so a bracket rule with that escape would have kept passing on the very site under review. Partial ownership is the drift; only a dedicated `// phase-id-owner:` comment suppresses it. Proof, end to end: planting the shipped verify.cts literal back into src/ makes `npm run check:phase-id-drift` exit 1 naming `[bracket] src/verify.cts:1475`; restoring it returns the gate to ok. Tests. phase-id-drift-guard carries all three shipped literals as negative fixtures, the same-line-owner-reference case, the case-widened evasion variant, the sanction rules, and a temp-tree scan proving the rule is wired into scanRepo rather than merely exported. continuation-grammar-parity drives the pinned and capturing shapes over a 12-entry corpus and requires the same verdict from both plus the same captured milestone — widening either alone fails there. * test(#2761): drop the out-of-scope source-grep exemption from the selector pin The baseline-selector pin in tests/adr-612-bracket-heading-selection.test.cjs read `src/*.cts` with readFileSync and regex, claiming the no-source-grep escape with a source-text-is-the-product reason. CONTEXT.md's documented scope (RULESET.TESTS.no-source-grep.exemption) reserves that escape for tests whose subject is a runtime CONTRACT FILE — STATE.md, config.toml, hooks.json, agent .md — and `src/*.cts` is none of those. It was also broader than it looked: eslint-rules/no-source-grep.cjs matches the marker in ANY comment in the file, so one block's claim disarmed the rule for the whole ~700-line suite. The pin itself is worth keeping — the BASELINE ARGUMENT at each call site is a fact no behavioural test can recover (flipping verify's milestone-complete site from LABEL_ONLY to ANY_BRACKET grants a tolerance it has never had, and every behavioural test still passes), so pinning it does require reading the authored source. That reading moved to `scripts/lint-phase-id-drift.cjs` — the seam's own guard, where source scanning is sanctioned (`warn` scope) and already happens for the grammar rules — as `countSelectorBaselines` / `scanSelectorBaselines`, which return a structured census. The test asserts on the returned data and touches no file text. CONTEXT.md is unchanged: the exemption scope was not widened to fit the test. No marker remains in the suite, so the rule is live across all of it again, and eslint passes with the escape removed rather than relocated. A floor assertion pins that the census actually found the five consumers, so the "no other file consumes the selector unpinned" check cannot pass on an empty scan. * docs(#2761): rewrite the changeset as a lead + deltas instead of one paragraph The fragment was a single ~6,400-character paragraph that opened on internal mechanics, buried the user-visible change, and named an internal test path (tests/adr-612-bracket-phase-counting.test.cjs) that means nothing to a reader of the CHANGELOG. It now leads with what a user sees — bracket-style phase IDs are recognized on the read path across roadmap, validate, verify and state — followed by compact bullets for the behavioral deltas, the opt-in caveat, and the upstream consequences. Both merge-added disclosures are kept: the #3185 legacy-sentinel Phase-0 delta with the reason the bracket counter keeps the narrower rule, and the enumerator's convention-argument default flip with the four newly-scoped read surfaces and the note that archival and milestone-completion paths are unchanged. Two deltas from this review round are stated as their own bullets: per-occurrence classification in `missing_phase_details`, and workstream-scoped convention resolution including the workstream-rollup count change. The internal test path is gone and the body is down to ~3,850 characters. The bullets render as sub-bullets under the CHANGELOG entry and the `(#NNNN)` suffix still lands on a trailing paragraph rather than mid-list. `npm run lint:changeset` passes. * test(#2761): use helpers.cleanup in the drift-guard temp-tree test `local/no-raw-rmsync-in-tests` rejects a bare `fs.rmSync` in tests — the shared helper carries the Windows-EBUSY retry budget. The temp-tree scan added with M3's guard coverage test used the raw call. * docs(#2761): correct the occurrenceKey comment on qualified-key normalization The comment claimed `bracketQualifiedKey` is "fold- and padding-insensitive, so `[gsd.2] 01` and `[GSD.02] 01` are one phase". The fold half is right; the padding half is not. `BRACKET_MILESTONE_NUMERIC_SRC` is `(?:[1-9]\d{2,}|\d{2})`, so `bracketQualifiedKey('GSD.2-01', 'bracket')` returns null and that input takes the composite fallback instead. No behavior change — the two key spaces use different separators and cannot collide — but the claim was checkable and wrong. Restated: the owner case-folds, and padding-tolerance is not a property it has or needs, because each accepted milestone has exactly one canonical spelling and `[GSD.2]` is malformed rather than an alternate spelling of `[GSD.02]`. * ci(#2761): give the coverage-gate job the heap floor the shard jobs already have The gate's report steps parse ~2.5GB of merged raw V8 dumps in one process at the runner's implicit ~4GB ceiling, so pass/fail comes down to GC timing (run 31338081337 OOM'd; next passes the same volume at 28s). Deterministic locally: crashes at --max-old-space-size=4096, completes in 11s at 8192. PR shard data is within 0.15% of green next runs — the load is pre-existing, only the ceiling was missing. #2952 set 6144 on the shard-collection step; the gate job was missed. * Revert "ci(#2761): give the coverage-gate job the heap floor the shard jobs already have" This reverts commit 03c74a97c911e9ddc53675aded9c9bbb89f14cd1. * fix(#2761): thread the resolved convention into cmdStateValidate's phase-directory lookup #3208 replaced cmdStateValidate's `startsWith` prefix test with the canonical `phaseKeyFromDir(...) === selectedPhaseKey` comparison. That is the right surface, and it is why the lookup now needs the resolved `phase_id_convention`, which the rewrite does not pass. `phaseKeyFromDir` deliberately refuses to read a bracket directory without an explicit signal (ADR-2121: a bracket dir is string-indistinguishable from the legacy letter-prefixed-decimal family), so un-threaded it returns the whole dir name as the key — `GSD.02-05-real-work` -> `GSD.02-5-REAL-WORK` — while the STATE side is the bare `05` that `parsePhaseFromProse` yields. Both sides of one comparison derived under different conventions is #2562's defect class, and this file's other three `phaseKeyFromDir` call sites already thread against it. Observable: a bracket repo whose phase directory plainly exists reported `valid: false` and "no phase directory matches phase 05", and the drift scan (plan-count mismatch, verification status) never ran. The pre-#3208 `startsWith` missed the same directory but skipped silently, so this is a visible-failure regression on bracket repos, not a new miss. Non-bracket conventions are byte-identical by construction: `extractPhaseToken` branches only on `=== 'bracket'`, so null / 'milestone-prefixed' / unresolvable compile the same path as the un-threaded call. The flat-legacy twin assertion pins that. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs(#2761): note the cmdStateValidate convention threading in the changeset fragment The fragment described the bracket read path as of the pre-merge branch. 504c64ff added a shipped behaviour change — `state validate` now resolves bracket phase directories — that the fragment did not mention, so the rendered changelog would have under-described what ships. Body text only; `type` and `pr` are untouched. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#2761): invert the inherited-wart characterization — #3225 fixed it upstream Required by the merge of next @ 86101ee6; test-only, no src delta. This branch disclosed rather than fixed a pre-existing upstream wart: on a LEGACY repo, `### Phase 999:` warned from `validate consistency` while `validate health` suppressed it — the two verbs contradicting each other. The case was pinned as a characterization test ("INHERITED WART, unchanged") precisely so it would INVERT if upstream ever closed it, rather than rot silently.ae7dc529(#3225) closed it, by adding the `isSentinelPhaseId` guard to this very loop. So the assertion inverted on the merge — as designed. Flipped to assert the FIXED behaviour rather than deleted: it is the negative-space proof that this branch's `sentinelPhases` guard never had to grow a legacy reading of its own, and it reds if a future conflict resolution keeps our guard while dropping upstream's. Added a scope control alongside it (a legacy NON-sentinel `### Phase 09:` with no directory still warns), so deleting the loop outright cannot pass. Union proven load-bearing in BOTH directions against the merged tree — neither guard subsumes the other: - drop `isSentinelPhaseId(p)` (ours only) -> 1 red, exactly this case. Note upstream's own #3225 tests stay GREEN there: they cover the disk-side loops (sentinel dir on disk) and the gap-numbering filter, not the ROADMAP-side loop. This case is that site's only coverage, which is the second reason to keep it rather than delete it. - drop `sentinelPhases.has(p)` (upstream only) -> 4 red bracket suites (icebox-not-missing, health/consistency agreement, occurrence-aware suppression, checklist-index suppression). tests/adr-612-bracket-read-tolerance.test.cjs 79 -> 80, all green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * test(#2761): pin the three re-homed W006/W007 reads the merge left unfalsifiable #3309/#3310 deleted the helpers this PR threaded (collectDiskPhases, collectDiskPhaseEntries, collectArchivedPhaseDirNames, forEachArchivedPhaseToken) and rebuilt their reads inside src/planning-snapshot.cts + src/health-diagnostic-rules/*.cts. The convention threading moved with them in the merge commit — but a mutation sweep over the re-homed sites found three where reverting the convention argument changed real CLI output and NOT ONE existing test went red. The pre-migration sites were covered indirectly, through helpers that no longer exist, so the coverage did not survive the relocation even though the behaviour did. Each case is pinned at the CLI with its flat-legacy twin as the byte-identity control, plus a non-vacuity control in the opposite direction: archivedPhaseTokens revert -> "Phase 05 in ROADMAP.md but no directory on (planning-snapshot.cts) disk" for a phase whose only directory is under .planning/milestones/v1.0-phases/ roadmapPhaseCheckboxes revert -> "Phase 09 in ROADMAP.md but no directory on (planning-snapshot.cts) disk" for an unstarted `- [ ]` phase W007's extractPhaseToken revert -> "Phase GSD.02-77-orphan exists on disk" (roadmap-disk-consistency) instead of "Phase 77 exists on disk" Red/green: each single-line revert reds exactly its own case and nothing else; every legacy control stays green in all three runs. NOT pinned, and disclosed as droppable rather than given an unfalsifiable test: buildValidPhaseSet's extractPhaseToken(dir, convention) in W002. That rule unions disk tokens with roadmapDeclaredPhases and archivedPhaseTokens, and any STATE.md reference a bracket disk token would rescue is already rescued by the ROADMAP half — probed directly, the argument makes no observable difference. It is threaded because it restores collectDiskPhases(planBase, convention)'s derivation exactly, not because a test needs it. Test-only; revertable independently of the merge commit. * test(#2761): pin the two reads the #3165 extraction left unfalsifiable DROPPABLE, offered as such. Test-only; the merge commit is correct without it. #3428's extraction gave `collectAnalyzePhases` TWO call sites — the scoped milestone window and the truncated-window recovery path. The merge threads `convention` into both and swaps `detailKeys` with `phases` across the recovery. Neither of those was falsifiable by the suite as it stood: - passing a NULL convention at the FALLBACK site, with the scoped site still threaded, is green across all 518 tests of the bracket, roadmap and milestone-window files. Every pre-existing bracket assertion reaches the enrichment through the scoped window, so none of them can observe the fallback's reading at all; - dropping `detailKeys = fallbackScan.detailKeys;` — the line this merge authored — is likewise green, because no fixture that reaches the recovery path carries a checklist bullet, so `missing_phase_details` is `null` either way. That is the same hole class lap 3 closed in 9914359c: an argument whose revert changes real CLI output with zero reds. Pinned at the CLI on the shape that reaches the fallback on a bracket repo — a MID-MIGRATION ROADMAP: bracketed ACTIVE milestone, its phase-detail sections and checklist bullets sitting after an intervening CLOSED legacy milestone (so the window closes over prose only), plus one legacy `### Phase N:` section of its own. Six tests: - a NON-VACUITY control that removes the phase directories, so #3428's own precondition fails and the result is the empty one the recovery exists to replace — this is what proves the rest read the FALLBACK's output rather than the scoped scan's; - the directory assertion (`disk_status`/`plan_count`/`summary_count` for canonical `{CODE}.{MM}-{PP}-slug` dirs) + a flat-legacy twin asserting byte-equal shape, and that the twin is the right answer rather than a shared wrong one; - `missing_phase_details: null` for phases the recovery just found, and its companion direction — a bullet with no heading anywhere is STILL reported, so a fix that merely suppressed the report does not pass; - a non-bracket repo taking the same path unaffected. Red/green, each mutation reverted afterwards: - fallback call site -> `null` convention: exactly 2 reds, both directory assertions in this block; 307 other tests green, including upstream's own #3428 tests in tests/milestone-window-single-owner.test.cjs. - `detailKeys` swap deleted: exactly 2 reds, both `missing_phase_details` assertions; 414 other tests green. - `matchPhaseDirs` 3rd argument dropped (the lap-2 site): 4 reds — the 2 already on record plus this block's 2, which is the point: one seam, now reached by two paths. DISCLOSED IN THE TEST BODY WITH MEASURED OUTPUT, not fixed: `hasPhaseEntries` (src/roadmap-parser.cts) is convention-blind, so on a PURE-bracket ROADMAP the window classifies COMPLETE and #3428's recovery is gated off entirely. That document returns `{"scope":"complete","phase_count":0,"next_phase":null, "phases":[]}` — the "genuinely empty milestone" answer, the indistinguishability #3184 introduced `scope` to remove — where the flat-legacy twin returns `{"scope":"truncated","phase_count":2,...}`. Widening it changes the value of an upstream-owned output field on bracket repos, so it is a behaviour slice (the PR-2.5/PR-4 convention-less-readers question), not a merge-round change. The mid-migration shape pinned here is the reachable half. * fix(#2761): mirror the bracket terminator in the milestone-scope write guard parser's terminator vocabulary — "a level 1-3 heading that is not a Phase heading and carries a milestone signal". On this branch that vocabulary is convention-SELECTED: `computeBracketSectionEnd` adds `isBracketMilestoneBoundary` as a terminator arm, and the ADR-canonical `## [GSD.09] Hidden` carries NO vN.N token, NO ✅/📋/🚧/🔄 marker, and not the word "Milestone". Left unmirrored, the guard accepted exactly the description it exists to reject. NOT a defect on clean next — a bracket heading terminates nothing there. The branch widens the terminator set, so the branch owns the mirror. MEASURED at the CLI seam before the fix (bracket fixture, one milestone, one phase): $ gsd-tools phase add $'Sneaky\n## [GSD.09] Hidden' -> exit 0, written $ gsd-tools phase add 'Innocent follow up' -> exit 0, written $ gsd-tools roadmap milestone-scope { "scope": "complete", "phases": ["01","1"], "phase_count": 2 } $ grep '^### Phase' .planning/ROADMAP.md ### Phase 1: Sneaky ### Phase 2: Innocent follow up <- in the document, out of the window After the fix the first add exits 1, ROADMAP.md is byte-unchanged and no phase directory is created. The legacy twin (same text, no `phase_id_convention`) still exits 0 — opt-in only, base behaviour preserved. SHAPE - `findMilestoneScopeHeadingLines(text, convention)` — REQUIRED, the same tripwire `scanMilestonePhaseIds` carries in the merge commit and for the sharper reason: a blind call here fails OPEN (the guard quietly ACCEPTS a window-narrowing description), so a future call site must fail to COMPILE. Census is one caller, which pays nothing for it. A non-bracket value takes the pre-existing path byte-identically. The bracket arm routes through `isBracketMilestoneBoundary`, the same single-owner phase-vs-milestone discriminator `computeBracketSectionEnd` consults; no second bracket-heading grammar is spelled here. - `selectedBracketId` is deliberately `null`, so the same-milestone CONTINUATION exemption never fires and a value naming the ACTIVE milestone is flagged too. That is this predicate's third stated conservatism and rests on its own existing argument: which milestone is active is a property of the document at write time, not of the text being validated, and over-rejecting is one-directional. - `assertDescriptionPreservesMilestoneScope` takes `cwd` and resolves through the branch's tolerant try/catch — this guard runs BEFORE `loadConfig` and before the ROADMAP existence check, so an unresolvable convention must degrade to the legacy vocabulary, never turn a rejection into a crash. - The error's marker list gains the bracket form only when the project is on the bracket convention. RED/GREEN - Revert the bracket arm -> 2 reds (phase add; insert + add-batch), the non-bracket control and both no-false-positive cases stay green. - Revert the probe threading in the merge commit -> 1 red (the probe case). - 6 new cases in the #3262 file, each with a non-bracket or no-false-positive control: fenced bracket milestone heading and bracket PHASE heading are both non-violations. Droppable: revert this commit and the merge stands on its own; the branch then ships the gap as a disclosure instead of a fix. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs(changeset): narrow the enumerator claim to the directory set — per-entry rendering in progress/stats/init-manager is display-slice scope Round-7 review confirmed 3 of the 4 surfaces named by the closing claim parse each directory or heading with legacy-only patterns that live in files this PR does not touch (commands.cts:1766, commands.cts:2116, init.cts:2241). The claim now states exactly what this slice delivers: the scoped directory set. Their per-entry conversion is display work, deferred to the epic's display PR with the statusline/progress-card gates it belongs beside. * fix(#2761): de-accident the unmatched-milestone bracket fixture, re-pin to #3480's withhold contract tests/adr-612-bracket-phase-counting.test.cjs:515 ("a milestone that does NOT match STATE is not scoped in") asserted total_phases === 0. Since today's merge brought in70b5c1a1(#3354/#3480, already in `next`), buildStateFrontmatter withholds total_phases (omits the key, read back as null) for a milestone that is genuinely sectioned but matches no ROADMAP heading, instead of substituting a computed number — the fixture's `state json` read now returns null, failing the strictEqual(0) assertion. The original single-section fixture's 0 only ever survived by accident: hasMilestoneSectioning requires >=2 milestone-vocabulary headings to call a ROADMAP sectioned, and its isPhaseHeading helper recognizes only the legacy `Phase N:` text form — so the bracket phase heading `### [GSD.03] 09: Not this milestone` (title containing the word "milestone") miscounted as a second milestone heading, tipping hasMilestoneSectioning true and routing to the disk-count branch. With that miscount removed, the same one-section fixture reads 1 (the non-matching milestone's phase count leaking into v2.0's total) — proving the pinned 0 was never validating the scoping this test claims to exercise. Replaced the fixture with two genuine milestone sections (GSD.03, GSD.04), neither matching STATE's v2.0, with phase titles carrying no incidental vocabulary — the real #3354 shape. Re-pinned the assertion to null, matching upstream's own tested contract (tests/state- document.test.cjs, "#3354 with nothing stored, the key is omitted rather than written from the dir count"). Verified: file green 3/3 runs (104/104), full state-suite regression 771/771 green. The isPhaseHeading gap that made the old fixture accidental is a real, pre-existing, upstream-owned limitation (hasMilestoneSectioning only guards >=2-section conflation, not a single non-matching section leaking through) — not introduced by Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#2761): exempt two self-authored-fixture regexes from #3441's unbounded-quantifier rule Both sites parse the STATE.md the test itself just wrote to its own tmpdir — fixed-size fixture output, not adversarial or document-scale input. Exempted with the justification-comment pattern the tree's own tests use for this exact case (settings-integrations, copilot-install, research-agent-profiles). The sites predate the rule; #3441 landed on next this morning and this branch picked it up in the catch-up merge. * fix(#2761): fix forward two next-movement test regressions from the round-11 rebase origin/next's #3573 newly threads STATE's stored `milestone:` value into `state json`'s buildStateFrontmatter call (previously always `undefined` on that read surface). Two pre-existing PR-2 fixtures reach code paths that call never exercised before that merge: - RED (repro2 case C): a version-less, all-bracket-id ROADMAP now hits getMilestonePhaseFilter's pre-existing (unaffected by this branch) row-5 `versionResolved && !headingFound => SCOPE.UNSCOPED` rule, which withholds `progress.percent` even though the scoped total_phases/completed_phases are still correct. That row-5 rule is load-bearing for six other version-less-document pins in this same file; narrowing it broke seven of them in testing, so production code is untouched here. Reassert the test's real claim (scoping, via total_phases/completed_phases) and disclose the now-withheld percent instead of silently dropping it. - PIN (repro12 LEGACY control): a fenced-example-vs-real version heading fixture. #3573 routes this read through sliceMilestoneWindow (fence-aware) instead of the legacy anyMilestonePattern raw scan (fence-blind) this pin was disclosing as out of scope, so the fixture no longer exercises the blind path — total_phases moves from the whole-doc 4 to the correctly scoped 2. Re-pinned with an upstream-attributed comment, matching this file's existing house style for prior origin/next movements (see the sibling "PIN (G3 LEGACY control)" comment). Both are test-only fix-forwards: no production code changed. The remaining 12 failures in this file at 27363e9d0 (dropped seam commits' VERIFICATION.md naming + fixture updates) are pre-existing and deferred to the stacked follow-up per the task's own scope. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(#2761): thread phaseIdConvention explicitly at the two write-adjacent enumerator call sites (round-11 BLOCKER) listMilestonePhaseDirs' phaseIdConvention param lost its `= null` default (phase-locator.cts), so an omitted convention now means "resolve from config" instead of "explicitly not bracket" — a deliberate flip, but milestone.cts and state.cts were not in the PR-2 diff and both call the enumerator without threading it: - milestone.cts cmdMilestoneComplete (the single #3597 shared derivation feeding the stats loop, --dry-run preview, and the real archive/rename pass) now resolves phase_id_convention once and threads it explicitly, so a bracket project's `milestone complete` archives its real bracket-declared phase directories instead of silently inheriting whatever the enumerator's lazy default resolves to. - state.cts cmdStateUpdateProgress's own enumerator call threads the same resolved convention. Empirically this does not change the #3217 withhold gate (scope is assigned before headingConvention resolves in getMilestonePhaseFilter, so it's convention-independent either way) or the reported percent (already correctly threaded via computeUpdateProgressPreview -> buildStateFrontmatter); it closes a second, silently-resolved answer to the same question this file's own ONCE-and-THREAD rule (~:2300) already states as policy. - state.cts's other listMilestonePhaseDirs call site (the state-sync scope-only read, ~:4791) is left unthreaded on purpose, with an inline note explaining why: only `.scope` is consumed, and `.scope` is set before convention resolution in getMilestonePhaseFilter, so it cannot disagree with a threaded convention. Both enumerated sets are pinned by new tests (round-11 BLOCKER block in tests/adr-612-bracket-phase-counting.test.cjs), including a mutation-style regression check on the milestone.cts fix (forcing the un-threaded default back on makes the pinned test fail, catching a regression to the pass-all-degrade legacy reading). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(#2761): correct the changeset's false archival claim and amend ADR-612 for the round-11 M2(2) split scope The changeset (.changeset/2761-bracket-read-tolerance.md) asserted "The archival and milestone-completion paths are unchanged" — false: both paths reach the widened enumerator, and this PR now threads their convention explicitly (previous commit). Replaced the closing paragraph with an accurate description of what changes for a bracket project at those two call sites, and notes both enumerated sets are pinned by tests. ADR-612 (docs/adr/612-bracket-phase-id-convention.md) amended per M2(2): the 2026-08-03 PR-2/PR-4 boundary proposal is added in-body (PROPOSED, not stamped — mechanics per docs/contributor-standards.md:143 reserve ADR ratification to maintainers), rescoped to what actually ships in PR-2 (#2761) now that the round-11 M1 split moved the completion-seam threading (isPhaseArtifact/scopeToPhase, phase-id.cts:964-1090) out into a separate, stacked follow-up PR referenced generically via epic #612: - state.cts read-tolerance (both total_phases derivations, the #1514 retirement filter) moves into PR-2's row, alongside milestone.cts, reflecting the round-11 fix above. - the write-observability point is restated in terms of what actually ships: explicit threading at two named call sites, pinned by tests, rather than silent inheritance. - the completion-seam threading is named and explicitly excluded from PR-2's scope, with a new ratify item (5) and a Negative consequence bullet covering the sequencing cost. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(#2761): repair round-11 response gaps — disk-side sentinel bug, test-fixture bug, scanMilestonePhaseIds caller drift Four independently-verified gaps in the round-11 repair response: 1. isSentinelPhaseId (src/phase-id.cts) treated a bare, untagged phase directory under phase_id_convention: "bracket" (`0-bootstrap`, no `{CODE}.{MM}-` prefix) as sentinel milestone 0 by falling through to the legacy leading-int rule when the bracket-tag match failed. This silently dropped a real, on-disk, milestone-declared phase directory from `listMilestonePhaseDirs` (phase-locator.cts:424, the only unguarded call site) and undercounted completed_phases/percent. Mirrors the carve-out already present on both heading-side counters (state.cts's countRoadmapPhaseHeadings guards its bare-0 exclusion with `bracketId &&`; roadmap-parser.cts's scanMilestonePhaseIds composes the bare-token rule as 999-only) — under bracket convention, milestone 0 is expressed only via an explicit bracket tag, so an untagged leading 0 is a real phase token. 2. tests/adr-612-bracket-phase-counting.test.cjs's writeProject fixture hardcoded `01-VERIFICATION.md` for every "complete" phase dir regardless of the dir's real phase token. Under legacy convention this file already correctly failed #3511's strict isPhaseArtifact match for any dir other than phase 01 (the fixture never modeled what it claimed to); under bracket convention the pre-existing ambiguity fail-safe admitted it regardless. The two readings' disagreement was mistaken for a missing completion-seam threading (isPhaseArtifact/scopeToPhase convention awareness, correctly split out to the stacked #3644 per round-11's M1). Replaced the hardcoded name with verificationNameFor(dir), deriving the real per-phase filename from the production normalizePhaseName the same way cmdScaffold does — the 7 failing "flat-legacy-twin" / CHARACTERIZATION assertions pass on #2867's own code with no seam threading required, and the genuine seam-dependent cross-phase-stray-exclusion test the fixture fix would otherwise have hidden lives on the stacked branch instead. 3. tests/roadmap-parser.test.cjs's two #3577 tests still called scanMilestonePhaseIds with the old single-Set return shape; this PR changed it to `{ ids, qualifiedIds }` for every other caller but missed these two, which don't touch #2761/bracket code at all. TypeErrors at runtime, not silently-wrong assertions. Updated both call sites. 4. .changeset/2761-bracket-read-tolerance.md gains a paragraph disclosing fix 1 above, so the changeset stays accurate to what actually ships (the round-11 BLOCKER was exactly this changeset going stale once). Verified: tests/adr-612-bracket-phase-counting.test.cjs + tests/continuation-grammar-parity.test.cjs + tests/roadmap-parser.test.cjs = 354/354. adr-612-{coherence,grammar,heading-selection,read-tolerance, selection.property}.test.cjs + collision-characterization = 287/287 (CONFIRMED-CLEAN set, unaffected). Full unfiltered suite run separately. PR #3643 (round-11's M1 split, opened draft per that round's explicit requirement) was auto-closed by this repo's own draft-PR policy 11 seconds after opening — draft PRs are unconditionally closed here. Reopened as non-draft #3644 (same branch, same commits, DO NOT MERGE / stacked-on-#2867 marker in the body, enhancement template) since the repo's own bot confirms non-draft contributor PRs are tolerated even off-template. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(#2761): narrow the state-update-progress pin claim to what mutation testing actually proved, add the test that covers the rest Round-11 BLOCKER response gap (verified, not a guess): the changeset and ADR-612 amendment point 2 both claimed the round-11 tests pin `cmdStateUpdateProgress` so "a future change to the enumerator's default cannot silently move ... what state update-progress reports without failing a test." Mutation testing disproves this. Reverting BOTH the state.cts explicit `phaseIdConvention` thread AND simulating the phase-locator.cts pre-#612 hardcoded-null default (`phaseIdConvention: null` at that one call site) leaves the existing PIN test ("writes a real percent for a bracket-scoped milestone") green, because that percent comes from `computeUpdateProgressPreview` -> `buildStateFrontmatter`, a separately and already-correctly-threaded derivation the state.cts inline comment at ~:965 already candidly documents. What the reverted thread DOES change, empirically, is `phaseDirs`/`totalPlans` — the enumerated `.value` this call site feeds into the #3233 zero-plans no-op gate a few lines below. That is the one place a regression at this call site is observable in the command's output. Added a test that pins exactly that: a bracket milestone whose declared phases carry no plans on disk, alongside a decoy directory that plainly does not belong to the milestone (no bracket tag, no phase token) but does have a plan. Correctly scoped, the decoy is excluded and the #3233 no-op fires (`updated: false`). Degraded to the pass-all legacy reading, the decoy is swept in, `totalPlans` flips nonzero, and the no-op never fires (`updated: true`). Mutation-tested against both scenarios: - Reverting ONLY the state.cts explicit thread (falls back to `undefined`, which `getMilestonePhaseFilter` resolves via the identical `resolvePhaseIdConvention(cwd, undefined)` call the explicit thread also makes): new test stays green — confirms the single-hunk thread really is pure single-derivation hygiene, exactly as the existing inline comment claims, for this test too. - Forcing `phaseIdConvention: null` at that call site (the combined-revert scenario the round-11 mutation testing actually exercised): new test FAILS (`updated: true, percent: 0` instead of the expected `updated: false`). Restoring the real code makes it pass again. Narrowed the changeset and ADR-612 point 2 prose to match: `cmdMilestoneComplete`'s enumerated set is pinned against a pass-all-degrade regression (genuine, already verified in round 11); `cmdStateUpdateProgress`'s own call site is now pinned against the #3233 zero-plans no-op specifically, not against the reported percent, which the prose no longer claims. Added a one-line pointer to the new test in the state.cts inline comment. No production behavior changes — test and documentation only. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * docs(#2761): reconcile ADR PR-2 module map * fix(#2761): restore #3639's dir-aware W007 sentinel exclusion lost in the rebase replay The rebase replayed this file's pre-#3639 patch over next, reverting the isSentinelPhaseId(token) -> isSentinelPhaseDir(dirName) fix: the extracted token is milestone-stripped, so a bracket sentinel (GSD.999-07-icebox, GSD.00-01-backlog) was invisible to the id predicate and false-fired W007. Restores upstream's call and comment verbatim; the branch's convention-aware token remains for the diagnostic message only. Caught by next's own #3639 regression tests (CI shard 2). Local: the file's 18/18, health-diagnostic-rules 165/165, full npm test exit 0. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MeAsZNfhiUQioFPA4ygEGS * docs(#2761): ratify scope and correct surface claims * test(#2761): strengthen legacy selection and drift claims * docs(#2761): correct the enumerator claim, scope list, and ratification receipt Three documentation corrections, none touching production code. The changeset claimed the shared phase-directory enumerator "now defaults its convention argument to 'not yet resolved' rather than 'resolved, and not bracket'". That is false: `phase-locator.cts:375` still destructures `phaseIdConvention = null`, and the lazy resolve-from-config fires only on `undefined` (`roadmap-parser.cts:941`, `:1928` — whose own comment records that "explicit null still means 'resolved and non-bracket'"). Measured: only 4 of 17 `listMilestonePhaseDirs` call sites thread a resolved convention (`milestone complete` and `state`'s three). The changeset went on to name `progress`, `stats`, `phase list` and the init manager view as now receiving a correctly scoped set — those are precisely callers that omit it. Replaced with what the code does, and the deferral stated plainly. The ADR's PR-2 row omitted `scripts/lint-phase-id-drift.cjs` (+141/-14) and `scripts/lint-phase-enumeration-drift.cjs`, both changed by this PR. An under-claim rather than an over-claim, but the row is the epic's scope-of-record. Ratify item 5 asserted maintainer ratification while citing only the review that raised the question. It now cites the review that granted it (#2867 review `5012940978`, 2026-08-24) and quotes its terms, so the claim carries its receipt. Found by an adversarial review pass over the round-12 diff. (#2761) * fix(#2761): drop the no-op --json that strict argv now rejects Surfaced by the rebase onto next, not by a change in this PR's subject. #3884 ("failure is a value — strict argv",e20744eac) made an unrecognized flag a hard error: `state validate --json` now exits 1 with `unknown flag "--json"; accepted: --strict` on stderr and EMPTY stdout, where the token was previously accepted and ignored. `state validate` never had a `--json` flag — JSON is its only output shape — so the argument was a silent no-op from the start. The helper parsed that empty stdout, so all five subtests in the "state validate resolves bracket phase DIRECTORIES" suite failed identically with `SyntaxError: Unexpected end of JSON input` at the JSON.parse, masking what they actually assert. Dropping the token restores the same envelope the helper already parsed. No assertion changes. Verified against the fixture the suite builds: exit 0, and the output carries the S005 plan-count warning the drift assertions require with no S004 phase-directory warning — i.e. the bracket directory resolves, which is the behaviour these tests exist to pin. 94/94 in the file. * fix(#2761): exempt the phase-counting suite from the docs-guard lane Surfaced by the rebase onto next. #3753 (107eb8c1d) added lint-docs-guard-registration, which requires every test file that reads a docs/ path to be either registered in the docs-guard lane or carry an explicit marker. It flags adr-612-bracket-phase-counting.test.cjs, which reads no docs/ path at all. The file's only docs/ occurrence is the ADR-612 Decision 1 citation in a line comment; every read call it makes targets a tmpdir .planning fixture. It trips Detector 3, whose DOCS_TEMPLATE_LITERAL_RE sees an odd prose backtick in the comment block above that citation as opening a template literal and reads the span between them — citation included — as a docs/ path expression. That detector documents this trade in its own header: it favours recall, and says a false positive costs one docs-guard-exempt marker with a reason. The baseline records the same class ("comment-only mentions") for 46 of its entries. Registration was the wrong side of the trade here: it would run this suite in the docs-guard lane on docs/ changes whose content it never reads. Three pieces, matching what the gate requires and what its 54 existing entries already do: - the marker in the file's header window, written without backticks so it cannot itself disturb the parity tracking findExemption does; - the basename in DOCS_GUARD_EXEMPT_BASELINE, since the ratchet fails a new marker until the baseline is deliberately updated — the reviewable diff is the point; - the FIX 3 per-file fingerprint, derived with the lint's own extractDocsPathReferences rather than retyped, so the exemption fails loudly if the set of docs/ paths this file mentions ever changes. Gates: lint-docs-guard-registration 0 violations, ci-docs-guard-registry 51/51. * docs(#2761): correct the bare-0 comment and state what opting into bracket costs Round-13 review items Minor 2 and Minor 3, both still live on the previous head. Minor 2 — src/phase-id.cts. The comment block claimed "Bare `0` is admitted alongside it because a 0.x sentinel is a legitimate identity that predates padding", which contradicted both the shipped constant and its own next paragraph. BRACKET_CANONICAL_NUMERIC_SOURCE is `(?:[1-9]\d{2,}|\d{2})`; measured against it, `0` is rejected while `00`, `05`, `99`, `100` and `999` are admitted. The paragraph four lines below already recorded the removal ("the earlier `(?:\d{2,}|0)` ... admitted ... a bare `0` that pad2 never produces"), so the block asserted and denied the same fact. The stale sentence is replaced with what ships: `00` is the backlog sentinel's canonical padded identity, `\d{2}` already covers it, and nothing needs the unpadded spelling. No behaviour change — the constant is untouched. Minor 3 — docs/CONFIGURATION.md. The phase_id_convention row described the read-path widening but never said what a repo GIVES UP by opting in. Added: on a bracket repo a heading whose bracket is followed directly by a digit is read as a phase heading, so `### [RFC.2119] 5:`, `### [v1.0] 2024:` and `### [ADR.612] 3:` — legal prose headings under any other convention — are claimed as phases and move phase_count, total_phases and W006. Those three shapes are the ones phase-id.cts's own selector comment names as the reason the widened read is selected at construction time from this value rather than applied everywhere; the row now carries that trade instead of only its upside. Gates: tsc --noEmit exit 0, npm run lint:ci exit 0, npm run test:unit 33890/33891 with the single failure being emitted-attribution's base drift against a next that moved after the rebase (133/133 against the rebase base; this push re-bases onto the current tip, which resolves it). --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com> Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
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.