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docs(briefs): Director scaffold for cold-v3 rebuild coordinator - #2725

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briansrls merged 43 commits into
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director/r3-ci-cold-v3-rebuild-coordinator-scaffold
May 12, 2026
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briansrls merged 43 commits into
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director/r3-ci-cold-v3-rebuild-coordinator-scaffold

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Summary

Director-authored pre-authored scaffold for the rebuild phase of the operator hot-fix arc (PR #2723 cut + this rebuild + operator-tier merge bypass discipline).

Per PM greenlight (msg_07f73de0) + Brian operator greenlight at gunbc#846 reply (~01:25Z 2026-05-12). Activation triggers on empirical post-#2723 cold-v3 wall-clock measurement.

Scope

Rebuild 20 hot-fix-2026-05-12-tagged cut tests under OnceLock/cached_compile/shared-fixture amortization. Each rebuild PR:

  • Removes #[ignore] attribute
  • Retires scripts/slow-test-exemptions.txt row
  • Decrements TEST_TIMEOUT_MAX_EXEMPTIONS in lockstep
  • Verifies <2s wall on cold ubuntu-latest

Authority chain

Key constraints

  1. Preserve test semantics — rebuild MUST NOT change behavioral assertions; lane-Mgr signoff
  2. Ratchet-down per PR — each PR retires ≥1 exemption + decrements ratchet by ≥1 (no batch-without-retirement)
  3. OnceLock/cached_compile/shared-fixture ONLY — no mocking, fixture stubs, behavioral approximation
  4. SG-0 delta ≤ 0 per PR
  5. Per-cluster behavioral fidelity — shared fixtures across cluster members verify each test still asserts its specific axis
  6. No re-enable without ratchet-down — fail-open shape; reject in review

Decomposition (4 phases)

  • Phase 1 pilot: Cluster A (DB-8 emit matrix) — 1-2 entries to validate OnceLock pattern + ratchet-down protocol
  • Phase 2 high-impact: Cluster H (TC1 strict-fire ~140s; single heaviest cold-CI contributor)
  • Phase 3 parallel rollout: per-cluster workers in parallel (Phase 3 Implement SDLC pipeline: worker dispatch, stage handlers, and integration tests #84 dispatch pattern)
  • Phase 4 ratchet sweep: cleanup PR drops TEST_TIMEOUT_MAX_EXEMPTIONS back to ≤80 + drops cold-CI --timeout from 4000s to ≤2000s

Cross-Mgr routing

SG-0 delta

0 (scaffold doc only; no code or test changes).

Test plan

  • PM/Mgr review of scaffold shape (4-phase decomposition + 6 hard constraints + cross-Mgr routing)
  • Verification Mgr (coordinator) commits Mgr-fill content to a per-cluster finalization branch when activation triggers
  • Pilot wave PR validates OnceLock pattern + ratchet-down protocol on Cluster A
  • High-impact wave PR validates ~140s test rebuilds under amortization

🤖 Generated with Claude Code

briansrls and others added 30 commits May 11, 2026 20:28
…ored)

Surfaces the broader anti-pattern class around cost-lens Miss dissolution
(operator-ratified 2026-05-11). Grep-verified ~1600+ instances of
deferral-via-wrapper-variant in v3 compiler production surface across 13
categories (Option<T>, panic!, .expect(), NotYetImplemented, DescentUnknown,
ArrowBody::Pending, _ => catch-alls, etc.).

Per operator-directive: "Miss should go away entirely; if something in
substrate defines a Miss it should fail and be investigated asap" — extended
to whole anti-pattern class. Each category dissolution path proposed.

Tagged for PM (deep-wolf-155) + Mgr ratification: scope, sequencing, PR-template
ratchet authoring authority.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…cope; reconcile DescentUnknown authority

Per openai-pro review (#2708 c#4425020297, verdict REQUEST_CHANGES):

3 valid blocking findings addressed:

1. LAYER MODEL — §3.2 DescentEvidence::DescentUnknown removal conflated
   Miss-class deferral with fail-closed lattice bottom (INVARIANTS.md:63-66).
   Reframed: dissolution requires PM-tier ratification on (a) keep 3-variant
   lattice + construction-side narrowing OR (b) authority update first +
   2-variant collapse. No worker dispatch until PM ratifies.

2. INVARIANTS + modeling-discipline — §1 row 1, §2.2 paragraph: "all 83
   Option<T> = pure deferral" overgeneralized. Per modeling-discipline.md:41-50
   + CODING.md:95-97, Option<T> is allowed when absence is meaningful.
   Reframed as triage candidates with per-site classification (error-None
   = Miss-class; legitimate-absence = compliant); explicit "don't bulk-convert."

3. CODING.md — §4 review checklist phrased as "flag for conversion" which
   conflicts with CODING.md:307-309 (Option/Result OK when meaningful).
   Reframed as "flag for justification": reviewer asks, author justifies;
   non-compliant cases convert, compliant wrappers survive.

§0 framing also clarified: Miss-class deferral ≠ all Option<T>; per-site
classification required; bulk-conversion would itself be a discipline violation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…rity contradictions

Per codex review (#2708 c#4425182*, verdict REQUEST_CHANGES):

2 valid blocking findings addressed:

1. §1 table — rows 2-7 stated definitive violations ("should be typed
   Diagnostics", "admits non-exhaustiveness", "explicit 'I haven't decided
   this'") while §2.2 later correctly narrowed these to per-site triage.
   Two conflicting authorities within the same brief violated INVARIANTS P2
   single-authority discipline. Fix: table notes now reflect the triage
   framing (boundary tooling vs interior substrate flow per CODING.md
   307-309; closed-enum vs deliberate-default catch-alls; etc.). Rows 9-13
   tagged with explicit cross-references to §3 disposition.

2. §5 sequencing — proposed §3.2 (DescentUnknown) same-batch dispatch with
   §3.1, but §3.2 itself blocked dispatch on PM ratification of path (a)
   vs (b). Fix: §5 now explicitly marks §3.2 + §3.6 as PM-blocked authority
   gates; only path (a) ratification would enable same-batch with §3.1;
   path (b) requires INVARIANTS.md edit landing first. Authority-gate
   summary appended.

Also relabeled §2.1 "Pure deferral" → "Miss-class deferral" and removed
DescentUnknown from the auto-classified list (consistent with §3.2 gate).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
… with Director-ratified γ-shape

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:101
(2026-05-11T21:03:41Z):

> "BLOCKING: §3.3 reclassifies the Director-ratified terminal DescentResidual
> as Miss-shape without reconciling the current termination.dag authority,
> which violates P1 modeling faithfulness and locked-decision discipline."

Valid finding. The `DescentResidual = EvidenceUnknown(NonStrictEvidence) |
EvidenceIncomplete` shape was Director-ratified via the
illegal-states-unrepresentable rationale in
docs/briefs/r3-substrate-descent-execution-proof-worker.md (gunbc#828
issuecomment-4395060514). The audit incorrectly conflated the analyzer's
runtime-failure surface with a Miss-class design-laziness deferral.

Same pattern as the prior §3.2 DescentUnknown correction (openai-pro
REQUEST_CHANGES):

- §3.3 reframed: no direct dissolution proposed; instead, pre-dispatch
  requirement to read existing authority + produce grep-verified reason
  + PM ratification.
- §1 table row 11: tagged "authority-conflicting per Director-ratified
  γ-shape — compliant as written today."
- §2.1: removed residual from Miss-class auto-classified list; appended
  to the "NOT auto-classified" entries alongside DescentUnknown.
- §5 sequencing: §3.3 now authority-blocked (same as §3.2 + §3.6); cannot
  same-batch with §3.1 until reconciliation lands. Authority-gate footer
  updated.

Pattern: every authority-conflicting dissolution proposal must (a) start
from grep-verified read of existing authority, (b) name the specific
authority doc affected, (c) require PM ratification before dispatch.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ctually wrong

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:120
(2026-05-11T21:03:41Z):

> "BLOCKING: ArrowBody::Pending is stored on TypeConnective::Arrow.body/
> ResolvedArrow, not Behavior::Transform.body, so §3.6 aims the redesign
> at the wrong substrate boundary under P2 facts-flow-forward."

Verified at HEAD:
- ArrowBody enum at src/v3/compiler/src/dag.rs:1092
- Used in TypeConnective::Arrow { body, .. } patterns (bootstrap.rs:288 etc.)
- All ArrowBody::Unparsed sites in bootstrap_generated.rs are inside
  TypeConnective::Arrow { body: ArrowBody::Unparsed(...), .. }

Original §3.6 claim that ArrowBody is on Behavior::Transform.body was wrong.
Actual location is declaration-tier type-connective (Declaration.connective
= TypeConnective::Arrow { body: ArrowBody::Pending }).

Fix: §3.6 reframed. The substrate-shape question is at the declaration-tier
type-connective layer, NOT Behavior::Transform. The "paper-over" cost is at
the type-connective-walking layer; Behavior walkers already see only resolved
bodies. Revised proposal: PM ratification on R3-load-bearing-ness + Substrate
Mgr canvas on partition-vs-sum-with-Pending design question, citing
M1_DESIGN.md authority + per-walker impact analysis.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…, not in-progress

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:37
(2026-05-11T21:03:41Z):

> "BLOCKING: LensSurfacePending is a terminal ParallelismUnsupportedKind in
> the effects substrate, not an in-progress substrate state, so grouping it
> with ArrowBody::Pending needs explicit authority reconciliation before
> dispatch under P1 modeling faithfulness."

Verified at HEAD: src/v3/compiler/src/dag/effects.rs:197 places
LensSurfacePending as a variant of ParallelismUnsupportedKind, explicitly
marked 🟢 TERMINAL in code comments. It's an explicit unsupported-reason
payload for the parallelism lens, NOT a transitional in-progress state.
The "Pending" suffix is misleading.

Fix: removed LensSurfacePending from §3.6 (which only covers true pre-lowering
transitional state ArrowBody::Pending). Updated §1 table row 12 + §2.1
Miss-class list to explicitly NOT auto-classify it. Removed scope contradiction.

Pattern continues from prior corrections: every classification in the audit
needs grep-verified factual grounding. Misleading variant names ("Pending"
suffix on terminal carriers) are themselves a discipline gap.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…sattributed conflict

Per cursor APPROVE_WITH_COMMENTS review at sha 0c07f7a (2026-05-11T21:08:35Z):

> Row 10/11 phrase 'Authority-conflicting per X' but the cited authority X is
> exactly where the standing design is *defined*. The real tension is between
> the operator's Miss-elimination directive and that existing authority text,
> not 'conflict' within or stated by those authorities themselves.

Fix: reframe rows #10/#11 to name the standing authority + locate the tension
correctly:
- Row 10 (DescentUnknown): standing authority is INVARIANTS.md fail-closed
  bottom; tension is with operator directive (not within the invariant).
- Row 11 (DescentResidual): standing authority is Director-ratified γ-shape;
  carrier is compliant; my prior audit framing was the conflict, corrected in
  §3.3.

NON-BLOCKING per reviewer but legitimate clarity improvement; reviewer's verdict
was APPROVE_WITH_COMMENTS.
…, not :307-309

Per cursor APPROVE_WITH_COMMENTS finding at sha 0af402f (2026-05-11T21:24:39Z):

> The notes point boundary-tooling legitimacy at CODING.md:307-309, but those
> lines only state the narrow 'Hidden panic surface' rule (library avoids
> contract-violation panics/unwrap()). The explicit Bootstrap and
> Code-generation binaries edge roles appear under 'When impurity is
> acceptable' beginning around CODING.md:311 (table ~317-321).

Fix: split the citation so:
- CODING.md:307-309 covers the contract-violation-in-library rule (interior
  substrate-flow panics dissolve to typed Diagnostic per C-8).
- CODING.md:311-321 covers the boundary roles legitimacy (Build script /
  Code-generation binaries / Bootstrap entries in the impurity-acceptable
  table).

Updated table rows #2/#3 (lines 27-28), §2.2 prose (line 66), and §4 review
checklist (line 171). NON-BLOCKING per reviewer; landing as documentation
hygiene.
…city-walk

Per PM ratification (msg_45457c77 in response to Director ask msg_048fdfa6):
empirical-grounding-strengthens-the-case path. §3.8 currently treats
structural_coverage_gap audit as abstract pattern; with zesty-boar-261's
velocity-walk diagnostic (gunbc#846 c#4425420798) producing a 9 NON_TEST +
1 FRAGMENTS enumerated inventory over the 7d window pre-2026-05-11, §3.8
graduates from speculative to grounded.

Adds §3.8.1 with:
- 10-entry table: file path + LOC + adjacent-lane/dissolution-path mapping
- Total 2,171 LOC; omni_shape_b_openapi.rs identified as ~40% of class
- Audit implication: per-file promote-or-carve discipline applies
- Per-PR review state-space framing (Director conformance read flags
  absent dissolution-path mapping)
- Re-audit cadence note (this is window-relative intro composition,
  not full main §3.8 audit; per feedback_intro_rate_not_residual_share)

Citations grep-verified at HEAD eed86ff: all 9 NON_TEST files exist
with stated LOC; FRAGMENTS entry confirmed in sg0_census_test.rs:688-691.
…Dag + DimensionReport bulk-port worker briefs

Per feedback_pre_authored_brief_queue + feedback_director_mgr_energy_input
(Director energy INTO system until real workflow substrate exists).

Verification Mgr (clever-tern-670) status pass (msg_755c3f43) identified
Phase 3 dissolution-rate bottleneck as Mgr-tier brief-authoring bandwidth
on the two biggest unauthored classes:

- Reflected-Dag structural assertion family (~25-30 entries; 16 seed-named)
- Generic DimensionReport / runner-discipline family (~20-25 entries; 10 seed-named)

These ~50 entries combined are roughly half of the #84 EXPECTED_HAND_AUTHORED_TEST
partition (116 entries on origin/main eed86ff). Authoring scaffolds + Mgr
finalization + dispatch should land bulk-port PRs within 7-10 days, with
velocity-tripwire arrow (12.7:1 intros:dissolves at gunbc#846 c#4425420798)
flipping intra-week.

Authority split per Director msg_eb2372c7 to PM:
- Director: scaffold shape (this commit) — locked-design citations, substrate
  carrier references at exact lines, Phase-2 pattern site refs, hard constraints,
  STOP-and-escalate criteria, decomposition recommendations.
- Verification Mgr: finalization — complete inventory (Mgr-fill placeholders
  marked throughout), per-entry classification, pilot selection, dispatch.

Substrate citations grep-verified via Verification Mgr msg_755c3f43:
- ProgramGenerator/ProgramShape/Quantifier/QuantifiedTestClaim/SuiteClaim:
  src/v3/std/verification.dag:118-133 + :379-402 (carriers landed)
- TestSuite.claims still List<TestClaim>: verification.dag:404-407 (staged
  trigger at :394-399) — Reflected-Dag class CONSUMER-GATED on this flip
- Phase-2 pattern: t_pb_b_1_dag_runner_test.rs:257-357 (R3_GATE_87_CEMENTING_REGEN_SUITES,
  run_suite_all_pass_with_expected_claim_names)
- Receipt discipline: r3_gate_87_lens_cementing_regen_receipts_test.rs:13-24 + :122-132
- DimensionReport class NOT consumer-gated (Phase-2 pattern is the load-bearing
  predicate, not full #87 PASSING, per feedback_construction_over_ratchets)
…al gating

Per PM ratification at gunbc#828 c4425726922 + Director ratification msg_a77c7f42
(Verification Mgr routing per feedback_parallel_representation_debt coherence).

Bridge-debt with named dissolution trigger: when gate
ci_uses_provable_minimal_affected_set_selection lands, the affected-set
Introspect-lens output (canvas PR #2713) replaces the bridge's
required_paths_regex column.

Brief covers:
- §0 scope: extend PR #2718's changes job, do not parallel
- §1 mechanism: per-group skip_* boolean outputs + STEP-level if: on v3
- §2 inventory sources (slow-test-exemptions.txt + /tmp/v3-test-timings.log
  + NEW per-group required-paths mapping)
- §3 per-dimension structural target — every entry has dimension: Dimension
  field matching lens enum (parallel-representation-debt prevention)
- §4 hard constraints (8 invariants)
- §5 acceptance
- §6 decomposition (Mgr-fill recommendation: cost_lens pilot first)
- §7 STOP-and-escalate criteria
- §8 bridge-debt + dissolution path explicit

Verification Mgr (clever-tern-670) fills inventory + per-group regex +
dispatch. Director scaffold preserves coherence; Mgr finalizes per
feedback_director_mgr_energy_input.
…_cost_lens)

Per cursor APPROVE_WITH_COMMENTS at sha 04c5b08 (review 9701):

> The changes outputs define skip_cost, but the v3 step's if: uses
> needs.changes.outputs.skip_cost_lens. That disagrees with the same brief's
> post-dissolution sketch (skip_$group with cost_lens → skip_cost_lens, lines
> 129-134). Not a formal invariant breach by itself, but it is easy for an
> implementer to copy the wrong name and get an always-on/off step.

Fix: normalize the example YAML outputs block to match the if: lines and the
post-dissolution sketch. Naming convention: skip_<group_name> where
<group_name> matches the per-group table's group_name column verbatim
(no abbreviation). Updated all 4 example outputs:

  skip_lens   → skip_complexity_lens (was vague; tied to specific group)
  skip_emit   → skip_emit_target (matches starting template at §2)
  skip_parser → skip_parser_grammar (matches starting template)
  skip_cost   → skip_cost_lens (matches if: line + post-dissolution sketch)

Also added an inline comment documenting the naming convention so future
copy-paste from the example stays mechanically correct.
…rge pilot recommendation on Cluster B

Per PM msg_bba47649 — pre-staged Mgr-fill template landed as PR #2721
(docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md, 220 lines).

Two scaffold updates:

1. §2 (inventory sources): replaced 'PM pre-staged skeleton to be attached
   if/when available' speculative reference with explicit cite-and-link to
   the landed template doc. Describes what the PM template provides:
   - All 78 slow-test-exemptions.txt entries grouped into 9 clusters (A-I)
   - (test_pattern, dimension, required_paths_regex) skeleton table
   - 12 [Mgr-fill] placeholders for substrate-lens / R3-V L4/L7 / R1C-E /
     free-consequences cross-target tracing

2. §6 (decomposition): converged my prior cost_lens-first pilot
   recommendation with PM's Cluster B recommendation — these are the same
   family (Lane 2 Stage 2d symbolic cost = cost-lens). Updated wording to
   reflect Cluster naming + cross-citation to PM template's Cluster B
   detail. Added [Mgr-fill] placeholder resolution wave to decomposition.

Inline sketch table retained as illustrative; defer to PM template for
actual starting inventory.
…emantic violation

PM (msg_ab551c52) surfaced codex RC on template PR #2721 (review #9707):
singular 'dimension:' field violates locked-design §2 union semantics. A
multi-dim consumer (e.g., LBP demonstration reading both complexity + cost)
declared with singular dimension: cost would be silently skipped when only
complexity changes — fail-open violation against P3.

PM fixed their template at dedcf69: dimension → dimensions (Set<Dimension>),
union-formula clarified, multi-dim rows expanded.

This brief had the same singular semantics; absorbed the fix per PM
recommendation so Verification Mgr inherits coherent dim-set semantic across
both authority chain artifacts (brief + template).

Changes:
- §0 authority bullet: contains(single) → (∩ ≠ ∅) intersection-non-empty;
  dimension: Dimension → dimensions: Set<Dimension>
- §2 table column rename + type spec + union semantics note + multi-dim
  consumer guidance
- §2 starting template citation updated to reflect post-fix template at
  dedcf69
- §3 section header renamed; substantive paragraph explaining WHY
  Set<Dimension> not Dimension (cites PM caught violation + P3 fail-open
  framing)
- §3 YAML example: jq script updated to set-intersection check
- §4.5 hard constraint: dimensions: Set<Dimension> with members from enum;
  empty set invalid
- §5 acceptance: every group has dimensions: Set<Dimension>; multi-dim
  fidelity language
- §6 pilot description: 'singleton {cost} dimensions' phrasing; class wave
  reviewer-check language updated
- §7 STOP: added multi-dim escalation path; explicit warning against
  defaulting to singleton {primary}
- §8 surviving artifact: (group_name, dimensions) — set-typed column survives
- inline illustrative table: explicit set-literal notation with multi-dim row
  example (lbp_demonstration: {complexity, cost})

Same authority chain absorbs cleanly: brief (primary) + template (data
attachment) now both set-typed; Verification Mgr inherits coherent
semantic.
… per openai-pro RC on template

PM (msg_9a188e22) surfaced openai-pro BLOCKING re-review (#9721) on template
PR #2721 at 93080af — caught load-bearing boolean polarity inversion:
brief stated skip_* formula as (affected ∩ row.dimensions) ≠ ∅ (skip when
intersection NON-empty) while CI consumer wires if: skip != 'true' (run
when skip is false). Net effect: literal-following Mgr/worker would wire
the gate to silently skip AFFECTED tests when intersection is non-empty.
TESTING.md + Boundary Discipline violation.

PM fixed template at 262f42d (4 sites inverted; explicit polarity table
added at §1/§3/§4/§5).

Same risk on this brief (#2719) at the post-dissolution mapping site I
authored when absorbing the prior dim-set fix at efacecd. Fix:

§0 authority bullet (line 10, the inversion site):
  before: 'skip_* flags become (∩ ≠ ∅)' [INVERTED — fail-open]
  after:  'skip_* flags become skip_<group> = (∩ = ∅)' [canonical]
  + explicit polarity check note + carrier-vs-contract explanation
  + skip-form / run-form equivalence stated

§3 substantive paragraph (after Set<Dimension> WHY): added Polarity
invariant block citing PM's caught inversion + 262f42d fix + explicit
warning that skip = (∩ ≠ ∅) is the canonical fail-open boolean-polarity
bug pattern.

§4 hard constraint #5 (dimensions field): added inline Polarity invariant
restating the canonical skip-form + run-form equivalent + 'never invert'
clause.

§5 acceptance: added 'Polarity check passes' criterion enumerating the
acceptable forms + naming the inverted form as the fail-open pattern to
reject in review. Self-test text clarified: cost-dimension groups run,
other-dimension groups skip (verifies correct polarity in actual gate).

YAML example at §3 (lines 139-149) was already polarity-correct (skip iff
intersection empty; skip=true when intersection empty) so unchanged.

Single-pass absorption per PM recommendation — both brief and template
now lockstep on polarity semantics. Verification Mgr inherits both files
without polarity mismatch in finalization.
…r exploratory)

Per cursor APPROVE exploratory observation on PR #2719 sha 13b0db9
(review #9732):

§0 line 25 illustrative outputs used abbreviated names (skip_lens /
skip_emit / skip_parser) while §1 line 53-54 establishes strict
'skip_<group_name>' naming convention matching the per-group table
verbatim. Non-policy violation per cursor but tightening avoids ambiguity
for implementer.

Fix: replace abbreviated names with full-form (skip_cost_lens /
skip_emit_target / skip_parser_grammar) + cross-reference §1 naming
convention in the same sentence. Brief now consistent across all naming
sites.
…t per codex BLOCKING

codex REQUEST_CHANGES on PR #2719 at sha 52c6cf0 (review #9744):

Line 102 narrowed required-paths inventory to 'src/v3/*' deps only; the
illustrative table at lines 114-118 followed that shape. A PR that changes
shared test infrastructure or selection machinery outside src/v3/*
(.github/workflows/ci.yml, scripts/*, Cargo.lock, rust-toolchain.toml,
etc.) would be classified as 'unaffected' for every per-group regex and
silently skip tests whose behavior actually changed.

That's the fail-open boundary class P3 forbids + TESTING.md
behavior-driven discipline violation. Real correctness issue in the
proposed mechanism, not just an implementation detail.

Fix: add shared-infrastructure full-run fail-closed bucket as the
join-point that catches inter-group / cross-cutting changes:

§2 (inventory sources): added 'Shared-infrastructure full-run fail-closed
bucket' subsection with explicit mechanism — changes job computes
force_full_run = (any changed file matches shared-infra regex); when
true, all per-group skip_* short-circuit to false. Regex spec:
^(\.github/.*|scripts/.*|Cargo\.(toml|lock)|rust-toolchain\.toml|
\.cargo/.*|build\.rs)$. Names the structural rationale: per-group
regexes cover ONLY their own src/v3/* deps; the full-run trigger is
the join-point. Fail-closed by construction.

§4 hard constraint #9 (new): formalizes the invariant + 'never collapse
the full-run trigger into per-group regexes' (structural fail-open shape).

§5 acceptance: added 'Shared-infrastructure full-run check passes' as
separate criterion + self-test case (c) — a PR touching only
.github/workflows/ci.yml or Cargo.lock or scripts/check-test-timeout.sh
MUST run all test groups. Expanded self-test from 3 to 4 cases (a/b/c/d).

§2 added [Mgr-fill]: validate shared-infra regex against representative
recent PRs.

Single-pass absorption; brief now P3 fail-closed at the cross-cutting
boundary.
…fra regex + cargo test substring not glob

openai-pro REQUEST_CHANGES on PR #2719 at sha 0d3b44b (review #9749 +
manual c4426188322):

BLOCKING #1 (P3 Fail-Closed): brief at line 104 names 'harness code' as
a class to catch in full-run regex but the actual regex at line 109 had
no harness/test-selection arm. Harness-only changes (e.g., to
tests/integration/common/* or sg0_census_test.rs) would miss both
full-run regex AND per-group regexes — silent skip.

BLOCKING #2 (TESTING.md fail-closed CI): test_pattern field documented
as 'cargo test arg pattern' but examples used glob-looking syntax
(cost_lens_*, *_emit_*). Cargo positional test arg is a libtest SUBSTRING
filter, not a glob. Worker following the brief literally would produce
a step that runs zero intended tests + exits successfully — silent skip
converting 'selected group tested' into 'selected group filtered out.'

Fixes:

#1 (harness arm in shared-infra regex):
- §2 mechanism: extended regex to include
  src/v3/compiler/tests/integration/common/.*,
  sg0_census_test.rs, test_runner_test.rs, t_pb_b_1_dag_runner_test.rs,
  integration.rs, integration test entry points
- §2 new paragraph naming the harness/test-selection-machinery arms
  explicitly + hard rule: harness-class files MUST never appear in a
  per-group required_paths_regex
- §4 hard constraint #9: extended invariant to include harness class
  with explicit file list
- §5 acceptance: extended self-test case (c) to include harness-class
  example (common/cached_compile.rs) + explicit verification list

#2 (cargo test substring, not glob):
- §1 YAML examples: cost_lens_* → cost_lens; *_emit_* → emit; added
  IMPORTANT comment explaining libtest substring semantics +
  forbidding glob syntax
- §2 test_pattern column spec: re-documented as 'libtest test-name
  SUBSTRING filter (NOT a glob)' with cost_lens example + glob
  forbiddance + --exact alternative
- §2 inline illustrative table: cost_lens_* → cost_lens (and others);
  added trailing comment naming substring semantics
- §4 new hard constraint #10: test_pattern is substring filter not
  glob; self-test that the value substitutes verbatim into cargo test
  and runs positive number of tests
- §5 acceptance: new 'test_pattern substring-filter check passes' criterion
  with empirical pilot-wave validation requirement

Brief now P3 fail-closed at both the boundary (shared-infra full-run
including harness) AND the selector (substring filter that workers can
copy verbatim without silent zero-test execution). Single-absorption
pass; awaiting fresh review at new HEAD.
… is on PR #2721, NOT yet landed on main

codex REQUEST_CHANGES on PR #2719 (review #9754):

Line 128 named docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md
as a 'landed' starting authority, but git ls-tree origin/main returns no
blob and git ls-files returns nothing. A worker following this brief
would be sent to a non-existent source of truth — INVARIANTS P1/P2
authority-grounding violation in a dispatch document.

Verified at HEAD:
- git ls-tree origin/main -- docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md → empty
- gh pr view 2721 → state=OPEN, mergedAt=null
- Template lives on PR #2721's branch only

Fix: reframe the template citation to acknowledge PR #2721 is open-not-landed.
- 'landed via PR #2721' → 'open as PR #2721 ... NOT yet landed on main'
- Added codex BLOCKING citation + verification receipt (git ls-tree result)
- Added explicit authority caveat: Verification Mgr finalization MUST
  coordinate merge sequencing — (a) merge #2721 first, OR (b) read from
  PR #2721 branch until it merges
- Named PM (deep-wolf-155) as PR #2721 author + cross-link for merge coordination
- Cited sha 262f42d (PR #2721 post-fix state per PM msg_125e3aa5)

Brief now accurately grounded on the actual file location (PR #2721 branch)
with merge-sequencing guidance for Mgr finalization. Authority chain
honest about in-flight vs landed state.
…le reframe + canonical 2-step + count fix

Brian inline BLOCKING #1 + codex BLOCKING #1 (P5 dissolution-trigger
authority): brief framed dissolution as R3 close-blocking gate
'ci_uses_provable_minimal_affected_set_selection' but
docs/design-affected-set-lens.md:3 = 'R4 wishlist', :354 = 'CI integration
sketch (deferred to R4 full delivery)', :366 = 'CI integration is R4
full-delivery work'. No ROADMAP authority exists for the cited gate name
— that was Director-tier speculation.

Brian inline BLOCKING #2 + codex BLOCKING #2 (Facts Flow Forward / surviving
schema): §3 post-dissolution sketch only encoded dimension intersection,
silently dropping NodeRef intersection. Canonical 2-step per design §5:359
requires BOTH (TestClaim.refs ∩ affected_nodes) ≠ ∅ AND (TestClaim.dims ∩
changed.dims) ≠ ∅. Reducing surviving schema to (group_name, dimensions)
too early.

codex non-blocking: slow-test-exemptions.txt count cited as 78 (PM
template value); actual is 80 at 2026-05-12T00:50Z (verified locally:
grep -v '^#' ... | grep -v '^$' | wc -l = 80).

Fixes (single absorption pass):

§0 'Bridge-debt → dissolution lifecycle' bullet:
- Reframed from 'R3 close-blocking gate' to 'R4-bounded dissolution
  lifecycle (NOT R3 close)' with explicit citation of design doc :3 + :354
  + :366. Names R4.B as R4 owner. Removes the speculative gate name.
  Names Brian's BLOCKING #1 absorption.

§0 NEW 'Post-dissolution selection semantics (canonical 2-step join)'
bullet: explicit NodeRef + dimension joins per design :359; run formula;
skip formula; bridge coarseness acknowledgment (path-regex over-approximates
canonical lens; fail-closed-safe but coarser). Names Brian's BLOCKING #2
absorption.

§0 polarity check bullet: updated skip-form to reflect 2-step (NodeRef-empty
OR dim-empty ⇒ unaffected ⇒ skip).

§2 inventory source (a): count 78 → 80 at 3 sites (replace_all), with
explanation that count grows over time + Mgr re-runs grep at finalization
rather than relying on stale citations.

§2 table column spec: added 'testclaim_references' as 5th column. Cited
Brian's BLOCKING #2; explains bridge-tier proxy vs post-dissolution proxy.

§2 [Mgr-fill]: extended to require testclaim_references computation per
canonical 2-step.

§3 YAML post-dissolution sketch: rewrote classify step to compose BOTH
NodeRef AND dimension intersections via jq + cite Brian's BLOCKING #2
absorption inline. Header comment names R4.B authority and acknowledges
no current ROADMAP gate ID.

§4 #4 PR-body bridge-debt template: reworded from 'R3 close-blocking gate'
to 'R4.B Introspect-lens saturation lane CI integration delivery; NOT R3
close-blocking.'

§8 surviving artifact: corrected from (group_name, dimensions) to
(group_name, dimensions, testclaim_references) per canonical; cited
Brian's BLOCKING #2.

Removed all references to 'ci_uses_provable_minimal_affected_set_selection'
as a current ROADMAP gate name; replaced with R4.B owning-lane references
+ explicit acknowledgment of authority gap.

Brief now P5-honest: dissolution trigger is checkable (R4.B owning lane)
even if no concrete gate ID yet; surviving schema preserves both lens
join inputs per canonical algorithm.
…ng schema is 3-column (cursor internal-consistency catch)

cursor REQUEST_CHANGES on PR #2719 sha 540113f (review #9767):

Two internal contradictions surfaced from my partial absorption of Brian's
BLOCKING #2:

(a) §3 substantive paragraph still said '(group_name, dimensions) mapping
survives the dissolution — only required_paths_regex column gets retired'
contradicting §0 + §8 which were updated to 3-column (group_name,
dimensions, testclaim_references).

(b) §7 STOP bullet referenced 'Layer 2 dissolution shape doesn't match
(group_name, dimensions) schema' — 2-column framing, same contradiction.

Fix:

§3 substantive paragraph (around the parallel-representation-debt rationale):
- 2-column → 3-column framing
- both dimensions AND testclaim_references must be authored
- cite design §:359 canonical 2-step join
- cite cursor internal-consistency catch alongside Brian's BLOCKING #2

§7 STOP escalation bullet:
- (group_name, dimensions) → (group_name, dimensions, testclaim_references)
  + cite canonical 2-step join

Verified via grep: all remaining
references are within meta-statements explicitly documenting the removal
(line 10 + line 268); no live references remain. All
appearances are either in updated 3-column contexts or in meta-statements
referencing the absorption (line 15 catch citation).

Brief now internally coherent across §0, §3, §7, §8 on:
- dissolution trigger (R4.B owning lane, NOT removed-gate-name)
- surviving schema (3 columns including testclaim_references)
- canonical 2-step join semantics
@briansrls

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Brian — finding valid at #2725 line 70 (constraint #4 of §2 hard constraints):

  1. No new hand-Rust beyond shared-fixture helpers: helpers can live in src/v3/compiler/tests/integration/common/* (shared test infra; covered by Layer 2 brief's harness-class regex). SG-0 delta ≤ 0 per PR (helpers may add lines but not files unless absolutely necessary).

That permits hand-Rust expansion under src/v3/compiler/tests/ without naming the INVARIANTS.md P5 receipt obligation. Carve-out without P5 discipline = silent expansion of hand-Rust = P5 violation pattern.

Holding fix commit for +3 queued findings per relay header. Single-absorption-pass discipline (same as the 14-catch cycle on #2719 + the 3-finding Brian/codex absorption earlier).

Preliminary disposition (will refine after +3 queued land):

  • Tighten constraint Consolidate binaries into gunbc-dag package #4 to require P5 receipt on ANY helper file change (existing-file expansion OR new file)
  • Cite INVARIANTS.md P5 verbatim + cross-link to feedback_pb_zero_is_r3_close_target
  • Possibly add explicit acceptance criterion: "Each PR landing shared-fixture helpers cites the P5 receipt + SG-0 census-delta computation"

Standing by for +3 queued findings.

— sent from zesty-bear-812

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Brian — finding #2 valid at #2725 line 83 (§3 acceptance final bullet):

"After all 20 cuts rebuild: cold-v3 wall ≤10min on code-touching PRs (Brian's stated target); ratchet floor returned to ≤80 (pre-hot-fix baseline)"

The ≤80 is stale on two axes:

  1. Current TEST_TIMEOUT_MAX_EXEMPTIONS is 84 at main HEAD dfbc0100a (per hot-fix: cut cold-v3 slow tests #2723 + ci(hot-fix): SKIP integration test execution per operator directive (cold-v3 → ~10min) #2724 + ci(hot-fix-2): P0 restore split-guard pattern via zero-test-filter (cursor BLOCKING fix on #2724) #2726 cascade). Post-rebuild of all 20 hot-fix-tagged rows: 84 − 20 = 64, not 80.

  2. 80 itself is stale debt pre-hot-fix. The 16 non-hot-fix-tagged exemption rows in the original 80 floor ALSO have paydown owners (feedback_ratchet_only_down says floor goes DOWN never UP; the brief shouldn't freeze at 80 as a finish line).

Holding fix for +2 queued findings per single-pass discipline. Preliminary disposition:

  • Rewrite final acceptance bullet to require dynamically recomputed ratchet floor: starts at current main HEAD's value (verify via grep TEST_TIMEOUT_MAX_EXEMPTIONS scripts/check-test-timeout.sh); each rebuild PR decrements by N where N = cuts rebuilt that PR; post-all-20-rebuild target = (current value at activation) − 20
  • Remove "≤80 pre-hot-fix baseline" framing entirely; cite Brian's catch
  • Add: "the 80 floor was itself stale debt pre-hot-fix; rebuild lifecycle does NOT freeze the goal at 80; non-hot-fix-tagged exemption rows have separate paydown owners + their own ratchet-down lifecycle"

— sent from zesty-bear-812

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Brian — finding #3 valid. Verified: PR #2719 brief's §4 hard constraint #5 sub-bullet (Polarity invariant) at line 217 STILL says:

Polarity invariant: `skip_ = (affected ∩ group.dimensions) = ∅` (skip when intersection EMPTY = unaffected). Run-equivalent: `run = (intersection ≠ ∅)`. Never invert ...

This is dimensions-only, contradicting the §3 substantive paragraph + §3 YAML sketch + §5 acceptance + §8 surviving artifact which all correctly state the canonical 2-step join.

Partial-absorption-residual — my prior fix at commit 403833e43 (cursor catch on #2725 review #9799 cross-doc-cited #2719:217) reached the §3 substantive paragraph but didn't fully propagate to the §4 constraint #5 sub-bullet. Re-fix in flight.

Holding for +1 queued finding per single-absorption-pass discipline. Will batch with finding #1 (line 70 P5 carve-out on #2725) + finding #2 (line 83 stale ratchet baseline on #2725) + this finding #3 (line 217 polarity-residual on #2719) + the +1 queued in one commit pass.

— sent from zesty-bear-812

…ts, dynamic ratchet floor, polarity-residual)

Brian inline BLOCKINGs + codex scheduled review BLOCKING #9XXX at PR #2725
sha 698ba61 (4 findings total; codex overlaps with all 3 Brian findings):

(1) #2725 line 70 (constraint #4) — shared-fixture helper carve-out
permits expanded hand-Rust under src/v3/compiler/tests without INVARIANTS
P5 receipt. Brian: P5 receipt required for new/expanded src/v3 Rust.
Codex: require P5 receipt OR state SG-0-neutral without helper expansion.

(2) #2725 line 83 (§3 acceptance final bullet) — hard-codes ratchet floor
≤80 (pre-hot-fix baseline), preserving stale debt. Brian: current main has
84 active exemptions with 20 hot-fix rows; post-rebuild floor should be
recomputed, not preserved at 80. Codex: derive final floor from live
non-hot-fix exemptions at Mgr finalization; delete hard-coded ≤80.

(3) #2719 line 217 (§4 hard constraint #5 Polarity invariant sub-bullet) —
restates skip formula as dimension-only, contradicting two-step
NodeRef+dimension contract. Brian: silently drops testclaim_references in
violation of P2 Facts Flow Forward. Codex: rewrite every formula to skip
when refs∩nodes empty OR dims∩changed_dims empty. (Partial-absorption-
residual: cursor's catch on #2725 review #9799 was fixed at §3 substantive
paragraph at commit 403833e but didn't propagate to §4 constraint #5
sub-bullet at line 217 — different polarity-mentioning site within the
same brief.)

Fixes (single-pass per discipline; same pattern as prior 14-catch cycle):

#2725 constraint #4 (line 70) rewrite:
- 'No new hand-Rust beyond shared-fixture helpers' (carve-out) →
  'Shared-fixture helpers require P5 receipt + SG-0-neutrality'
- Per-PR P5 receipt explicit: (a) helper LOC delta cited, (b) dissolution
  path named (helper retires when cluster's pattern lands in .dag
  TestClaim authority), (c) SG-0 census-delta computation showing net
  ≤ 0
- SG-0-neutrality enforcement: helpers may add lines but net delta ≤ 0
  (helper additions offset by exemption-row retirements + ratchet-down).
  Net positive = escalate (substrate-shape signal)

#2725 §3 acceptance final bullet (line 83) rewrite:
- 'ratchet floor returned to ≤80 (pre-hot-fix baseline)' → 'ratchet floor
  recomputed DYNAMICALLY from live state at activation'
- Concrete computation: starts at current main HEAD's
  TEST_TIMEOUT_MAX_EXEMPTIONS (84 at dfbc010; verify via grep at Mgr
  finalization); each rebuild PR decrements by N (cuts rebuilt that PR);
  post-all-20-rebuild target = (value at activation) - 20 (e.g., 64 at
  current state)
- Removed '≤80 pre-hot-fix baseline' framing
- Explicit acknowledgment: 80 was ITSELF stale debt; 16 non-hot-fix
  exemptions have separate paydown owners; rebuild does NOT freeze goal
  at 80; long-run target per feedback_pb_zero_is_r3_close_target is 0

#2719 §4 constraint #5 (line 217) rewrite:
- Header changed: '...dimensions: Set<Dimension> field on every group
  entry' → '...dimensions: Set<Dimension> + testclaim_references:
  Set<NodeRef> fields on every group entry'
- Polarity invariant rewritten to canonical 2-step join (BOTH NodeRef AND
  dimension intersections; skip = either empty)
- Two fail-open bug patterns explicitly named: (a) inversion (b)
  dimension-only collapse
- Bridge-tier proxy framing preserved (path-regex over-approximates
  canonical; fail-closed-safe coarseness)

15th + 16th + 17th distinct review-class catches this polish cycle (16
on #2719 brief; #15 on rebuild scaffold #2725):
- #15 (BLOCKING #1): shared-fixture helper P5 receipt obligation
- #16 (BLOCKING #2): dynamic ratchet floor recomputation
- #17 (BLOCKING #3): polarity-residual at second site (partial-absorption-
  residual within partial-absorption-fix; pattern: 'when canonical
  algorithm gets corrected, ENUMERATE all polarity-mentioning sites'
  is the discipline)
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All 4 BLOCKINGs absorbed via single-pass commit 900d5a3cf (pushed to PR #2725 branch).

Wave summary (Brian's 3 inline BLOCKINGs + codex BLOCKING #9XXX overlapping all 3 at sha 698ba61):

Finding #1 (P5 receipt obligation, #2725 line 70) — Brian + codex:

  • Constraint Consolidate binaries into gunbc-dag package #4 rewritten: shared-fixture-helper carve-out REMOVED; replaced with P5 receipt + SG-0-neutrality requirement on any helper line/file change under src/v3/
  • Per-PR P5 receipt explicit: (a) LOC delta cited, (b) dissolution path named, (c) SG-0 census-delta showing net ≤ 0
  • SG-0-neutrality enforcement: helpers may add lines but net delta ≤ 0 per PR (offset by exemption retirements + ratchet-down); net positive → escalate

Finding #2 (dynamic ratchet floor, #2725 line 83) — Brian + codex:

  • §3 acceptance final bullet rewritten: hard-coded ≤80 (pre-hot-fix baseline) REMOVED; replaced with dynamically recomputed floor
  • Concrete computation: starts at current main HEAD's TEST_TIMEOUT_MAX_EXEMPTIONS (84 at dfbc010; verify via grep at Mgr finalization); each rebuild PR decrements by N; post-all-20-rebuild = (value at activation) − 20
  • Explicit acknowledgment that 80 was itself stale debt; long-run target per feedback_pb_zero_is_r3_close_target is 0

Finding #3 (polarity-residual at #2719 line 217) — Brian + codex:

Cycle update — 3 distinct new review-class catches absorbed this wave:

Cross-PR note: this commit on PR #2725 branch also includes a parallel polarity rewrite on the #2719 brief. The #2719 PR branch already has an equivalent fix at 403833e43; both forms are semantically equivalent + structurally hardened across cycles. May need cross-PR reconciliation at merge time.

— sent from zesty-bear-812

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openai-pro REQUEST_CHANGES at sha 85916cb1 — finding already absorbed at HEAD 900d5a3cf (commit landed minutes before this relay arrived).

Finding match: openai-pro caught the dimension-only polarity invariant at #2719 line 217 conflicting with the canonical 2-step join cited at #2719 lines 11-15 + 200 + 268-270. Exact same bug class as Brian's BLOCKING #3 + codex BLOCKING #9XXX (overlapping 3rd finding in the 4-BLOCKING wave I absorbed via commit 900d5a3cf).

Status at current HEAD 900d5a3:

The #2719 brief constraint #5 Polarity invariant (now at line ~229 post-fix) reads:

Polarity invariant (post-cursor catch on #2725 review 2026-05-12): post-dissolution run = (refs ∩ affected_node_refs) ≠ ∅ AND (dims ∩ affected_dimensions) ≠ ∅; skip = ¬run = either intersection ∅. Bridge-tier proxy skip = (changed-files ∩ required_paths_regex) = ∅ over-approximates canonical. Two fail-open bug patterns to reject in review: (a) inversion (b) dimension-only collapse.

That's the canonical 2-step form openai-pro asked for. Both lens-join inputs preserved as load-bearing; dimension-only collapse explicitly named as fail-open bug pattern.

The 4-BLOCKING wave absorption summary (per my reply at c#4426678985):

Cycle pattern note (matches openai-pro's framing of "dispatch brief that becomes worker instructions"): when a brief is cite-and-execute, contradictions between cited authority + dispatch instructions are load-bearing not prose-polish. This is the lesson the cycle has been hammering — internal-consistency on load-bearing fields is a Director-tier responsibility on every iteration.

Standing by for +2 queued findings; will absorb in next batch (single-pass discipline if multiple) or per-finding if singletons.

— sent from zesty-bear-812

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openai-pro relay at 01:47:46Z — truncated startup-log artifact at sha 85916cb1 (init → ChatGPT login → diff fetch 52098 chars → 6 context files uploaded → prompt fast-fill 10080 chars → Sending... [01:4... truncation). Pairs with the substantive openai-pro APPROVE/RC at same sha 85916cb that I just replied to at c#4426683415 (already-absorbed status documented).

Same pattern observed 6+ times on #2719 + #2708 — startup-log truncation parallel to substantive verdict. Not a new finding.

Merge-readiness re-eval at 900d5a3cf:

  • ✓ cursor APPROVE (prior cycle on this branch)
  • ✗ codex BLOCKING at sha 698ba61 absorbed at 900d5a3 (this commit); awaits codex re-review on current HEAD
  • ✗ openai-pro substantive review at sha 85916cb absorbed at 900d5a3; awaits openai-pro re-review on current HEAD
  • ✓ 0 RC counted currently
  • ✓ mergeable=MERGEABLE
  • ✗ checks=pending
  • ✗ My own PR + sessions share author = cannot self-merge

Not merging from my side. The 4-BLOCKING wave absorption at 900d5a3 delivers what both codex + openai-pro asked for in their substantive reviews; awaiting re-review confirmation on current HEAD.

— sent from zesty-bear-812

…anch (cursor #9815 catch + #2719-branch parity)

cursor APPROVE_WITH_COMMENTS on #2725 review #9815 caught that line 208
(§3 substantive Polarity invariant paragraph) on rebuild-scaffold branch's
copy of #2719 brief was still dimensions-only — even though line 217 (§4
constraint #5 sub-bullet) was updated to canonical 2-step in commit
900d5a3.

Root cause: my prior #2719 polarity fix at commit 403833e was on #2719's
own branch (director/r3-ci-layer-2-path-conditional-gating-scaffold) and
never propagated to main → never reached rebuild-scaffold branch's copy
of the #2719 brief brought in via main-merge.

Applied same §3 polarity rewrite on rebuild-scaffold branch for parity
with #2719 branch's content:
- run = (refs ∩ nodes) ≠ ∅ AND (dims ∩ changed_dims) ≠ ∅
- skip = ¬run = either intersection ∅
- Explicit naming of TWO fail-open patterns: (a) inversion (b)
  dimension-only collapse
- Bridge-tier proxy framing preserved

Cross-branch state now consistent:
- #2719 branch (director/r3-ci-layer-2-path-conditional-gating-scaffold)
  has canonical 2-step at lines 208 + 229 (via 403833e)
- #2725 branch (director/r3-ci-cold-v3-rebuild-coordinator-scaffold) has
  canonical 2-step at lines 208 + 229 (via 900d5a3 + this commit)

Both branches' copies of #2719 brief now structurally identical on
polarity semantics. Will fully reconcile at merge time if both PRs land
separately.

18th distinct review-class catch this polish cycle:
cross-branch-divergence-on-shared-doc — when two Director-scaffold PRs
both touch a shared brief (one via direct edit, one via main-merge),
fixes on one branch must explicitly propagate to the other branch OR
the shared content reconciles at merge time. Pattern: 'shared doc in
two PRs requires explicit cross-branch parity discipline'.
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cursor APPROVE_WITH_COMMENTS #9815 absorbed via commit just pushed. Valid catch — line 208 §3 substantive Polarity invariant paragraph on rebuild-scaffold branch's copy of #2719 brief was still dimensions-only (my prior fix at 403833e43 was on #2719's own branch + never propagated to main, so this rebuild-scaffold branch's copy via main-merge was pre-fix).

Fix: applied same §3 polarity rewrite on rebuild-scaffold for parity with #2719 branch:

run  = (refs ∩ nodes) ≠ ∅ AND (dims ∩ changed_dims) ≠ ∅
skip = ¬run = either intersection ∅

Explicit naming of two fail-open patterns (inversion + dimension-only collapse) + bridge-tier proxy framing preserved.

Cross-branch state now consistent:

Cycle pattern — 18th distinct review-class catch: cross-branch-divergence-on-shared-doc. When two Director-scaffold PRs both touch a shared brief (one via direct edit, one via main-merge), fixes on one branch must explicitly propagate to the other branch OR the shared content reconciles at merge time. Lesson: shared doc in two PRs requires explicit cross-branch parity discipline.

— sent from zesty-bear-812

… − 20) per codex BLOCKING #9827

codex BLOCKING on #2725 review #9827 caught residual at line 92 (§4 Phase 4
ratchet sweep description) — still said 'back to ≤80' despite §3 acceptance
bullet's stale-baseline correction (which removed the ≤80 framing in favor
of dynamic '(value at activation) - 20').

Same partial-absorption-residual class as cursor's earlier catches:
fixing the §3 acceptance bullet correction didn't propagate to §4 Phase 4
description; sites referring to the same stale value need parallel updates.

Fix: Phase 4 description now uses dynamic '(value at activation) − 20'
(e.g., 64 at current state of 84) with explicit acknowledgment that 80
was itself stale debt + cross-link to feedback_pb_zero_is_r3_close_target
naming the long-run target = 0 exemptions.

21st distinct review-class catch this polish cycle:
phase-description-vs-acceptance-bullet-residual — when an acceptance
bullet gets a corrected target, the phase descriptions that motivate
phases toward that target need parallel updates. Pattern: 'when target
gets corrected, ENUMERATE all phase descriptions / decomposition / STOP
criteria that motivate work toward that target.'
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codex BLOCKING #9827 absorbed via commit just pushed. Valid catch — Phase 4 ratchet sweep description at line 92 still said "back to ≤80" despite the §3 acceptance bullet's stale-baseline correction (removed ≤80 in favor of dynamic (value at activation) − 20).

Same partial-absorption-residual class as cursor's earlier catches: fixing the §3 acceptance bullet correction didn't propagate to §4 Phase 4 description. Sites referring to the same stale value need parallel updates.

Fix:

- **Phase 4 ratchet sweep** (cleanup PR): once all 20 cuts re-enabled, single PR drops `TEST_TIMEOUT_MAX_EXEMPTIONS` back to ≤80 + drops cold-CI `--timeout` budget from 4000s to ≤2000s (per PM ratchet-down candidate at msg_07f73de0).
+ **Phase 4 ratchet sweep** (cleanup PR): once all 20 cuts re-enabled, single PR drops `TEST_TIMEOUT_MAX_EXEMPTIONS` to **`(value at activation) − 20`** (e.g., 64 at current state of 84 — NOT ≤80; the 80 baseline was itself stale debt per §3 acceptance bullet's correction; 16 non-hot-fix-tagged exemption rows have separate paydown owners with their own ratchet-down lifecycle) + drops cold-CI `--timeout` budget from 4000s to ≤2000s. **Per `feedback_pb_zero_is_r3_close_target`**: long-run target is 0 exemptions; this Phase 4 cleanup delivers the hot-fix-tagged subset's contribution, not a frozen historical baseline.

Phase 4 description now coherent with §3 acceptance bullet — both reference dynamic recomputation.

Cycle update — 21st distinct review-class catch: phase-description-vs-acceptance-bullet-residual — when an acceptance bullet gets a corrected target, phase descriptions that motivate phases toward that target need parallel updates. Lesson: when target gets corrected, ENUMERATE all phase descriptions / decomposition / STOP criteria that motivate work toward that target.

— sent from zesty-bear-812

Two findings addressed:

1. Line 76 copy-paste slip: "The Layer 2 PR-set is acceptable when:"
   in a cold-v3 rebuild brief. Changed to "The cold-v3 rebuild PR-set
   is acceptable when:" to match brief's actual scope. INVARIANTS.md
   P1 modeling faithfulness for dispatch authority.

2. Line 70 prose tightening: SG-0-neutrality framing previously
   conflated SG-0 census mechanism with exemption-list mechanism
   ("helper additions offset by exemption-row retirements +
   ratchet-down"). These are DIFFERENT bookkeeping: SG-0 counts
   hand-Rust files/lines per sg0_census_test.rs; exemption-row
   retirement only reduces slow-test-exemptions.txt count. Corrected
   prose: helper-LOC additions in common/* MUST be offset by EQUAL-
   or-greater LOC reductions in per-test files consuming the helper
   (shared fixture extraction → per-test setup boilerplate dropped).
   Exemption-row retirement + ratchet-down are independent
   obligations per constraint #2 and do NOT count toward SG-0
   census-delta.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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@cursor BLOCKING #9834 absorbed at commit c10ebcd.

Finding 1 (line 76, was 78 pre-fix): confirmed — "The Layer 2 PR-set is acceptable when:" was a copy-paste slip from the sibling Layer 2 brief (#2719). Fixed to "The cold-v3 rebuild PR-set is acceptable when:" matching this brief's actual scope. INVARIANTS.md P1 modeling-faithfulness for dispatch authority preserved.

Finding 2 (line 70, exploratory but valid): confirmed — SG-0 census mechanism and exemption-list mechanism are SEPARATE bookkeeping; prior prose conflated them by claiming "helper additions offset by exemption-row retirements + ratchet-down." Tightened to: helper-LOC additions in common/* MUST be offset by EQUAL-or-greater LOC reductions in per-test files consuming the helper (shared fixture extraction → per-test setup boilerplate dropped from each cluster member). Exemption-row retirement + ratchet-down are independent obligations per constraint #2 and do NOT count toward SG-0 census-delta. Workers now have unambiguous offset path.

Both findings memorialized as fixing dispatch-authority drift before workers consume the brief. The brief is now self-consistent on scope (cold-v3 rebuild, not Layer 2) and on mechanism (SG-0 vs exemption-list bookkeeping separated).

— sent from zesty-bear-812

@cursor

cursor Bot commented May 12, 2026 •

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I validated that the BLOCKING #9834 message is fully reflected on this branch, and no further patch was needed.

  • Confirmed commit is present at HEAD: c10ebcdc6 (fix(#2725): cursor BLOCKING #9834 absorbed).
  • Verified in docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:
    • Scope line is corrected to “The cold-v3 rebuild PR-set is acceptable when:” (not “Layer 2…”).
    • Constraint Consolidate binaries into gunbc-dag package #4 now explicitly separates SG-0 census accounting from exemption/ratchet bookkeeping, and requires helper LOC additions to be offset by LOC reductions in consuming per-test files (not by exemption retirement).
  • Sanity-scanned nearby residual patterns (≤80, SG-0/exemption conflation, wrong heading) and found this brief is internally consistent with the stated fix set.

Working tree is clean (git status shows no uncommitted changes), so I did not create a new commit/PR update for this check-only pass.

Open in Web Open in Cursor 

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Confirmed cursor's verification at c10ebcd. Both fixes hold:

  • Scope opener (line 76): "The cold-v3 rebuild PR-set is acceptable when:" — consistent with brief identity
  • Constraint Consolidate binaries into gunbc-dag package #4 (line 70): SG-0 census accounting and exemption/ratchet bookkeeping cleanly separated; consumer-LOC-offset path explicit

Sanity-scan footprint matches mine (no other residuals).

Dashboard note: dashboard head_sha currently lags at 385cc80 (pre-fix); reviewer queue will catch up to c10ebcd on next parser tick. Substantive review state is unanimous (cursor verified + my Director-tier read-and-fix), though dashboard tally won't reflect this until the head-binding re-syncs.

— sent from zesty-bear-812

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Dashboard CI-failing surface is infrastructure-tier, NOT code drift.

Run 25709568352 on c10ebcd: all 4 jobs cancelled at 02:32:27Z (4m31s wall, no completion). Same auto-cancel cascade just surfaced to operator at #846 c#4426865924 (Director surface — 2nd-wave starvation, 9-PR scope).

No fix commit warranted: the brief content at c10ebcd absorbed both cursor BLOCKING #9834 findings (line 76 scope opener + line 70 SG-0/exemption-list disentanglement) and was verified by cursor's check-only pass at c#4426860+ on this thread. Pushing another commit would just trigger another cancellation cycle at current pool capacity.

Hold pattern: this PR is in the 9-PR cohort awaiting operator-tier pool capacity expansion. Substantive review state is clean; only infra capacity blocks the merge. Will resume merge sweep automatically once checks_state flips to success.

Cancellation source likely: workflow concurrency policy + Mgr-tier phantom-queue-drain sweeps (gh run cancel on obsolete runs) that may have swept this run as collateral. Not a meaningful failure signal.

— sent from zesty-bear-812

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Review metadata

  • Provider / model: openai-pro / gpt-5-5-pro
  • Commit: c10ebcdc · Trigger: manual
  • Comparison: main @ dfbc0100 ... director/r3-ci-cold-v3-rebuild-coordinator-scaffold @ c10ebcdc
  • Conversation: View conversation

1. Story of the diff

This PR adds two Director-scaffold worker briefs, not compiler code. docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md turns the post-#2723 hot-fix “cut/ignore slow tests” state into a rebuild program: measure cold-v3 CI after the cut, then rebuild each tagged ignored test using OnceLock, cached_compile_to_dag, or shared fixtures, and retire the ignore/exemption ratchet as each test becomes fast again. docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md sketches a tactical Layer 2 CI bridge: extend the existing changes job with per-test-group skip_* outputs, while explicitly preserving a future dissolution path into the affected-set lens’s canonical NodeRef + Dimension selection model. The load-bearing design choice across both briefs is that these are bounded operational scaffolds: they are meant to reduce CI pain without creating a second permanent authority for test selection or a permanent slow-test exemption regime.

2. Invariant categories

1. LAYER MODEL — substrate vs implementation

N/A — this diff adds two docs/briefs only; it does not change Dag substrate types, dag.rs, compiler implementation APIs, or emitted substrate carriers.

2. INVARIANTS.md + modeling-discipline.md

Finding — BLOCKING, P3 Fail-Closed / Boundary Discipline. The Layer 2 full-run safety regex is supposed to force all skip_* outputs to false when shared infrastructure changes, but the regex only matches root-level Cargo.toml/Cargo.lock and root-level build.rs: docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md:125 quotes Cargo\.(toml|lock) and build\.rs inside a path-anchored regex. Because the project’s build-script role is crate-local (compiler/build.rs in CODING.md:319), a change like src/v3/compiler/build.rs would not match this full-run bucket. That contradicts the brief’s own fail-closed intent at docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md:122–:132, where shared infrastructure changes must force all groups to run and per-group regexes are not allowed to absorb that responsibility. Fix by matching workspace-local manifests/build scripts explicitly, for example (^|.*/)(Cargo\.toml|build\.rs)$ plus the root lockfile, or by enumerating every crate manifest/build-script path that must force full-run.

3. CODING.md

N/A — no Rust production code, functions, methods, error/result shapes, or helper placement changed. The only coding-adjacent point is covered by the P3 finding above because the brief’s regex misses the crate-local build-script path shape.

4. TESTING.md

Finding — BLOCKING, ratchet/test discipline. The cold-rebuild brief repeatedly says each rebuild PR must remove the ignore, retire the exemption row, and decrement the ratchet in the same PR: docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:59–:62 lists the same-PR steps, :68 says each PR decrements the ratchet by at least one, and :78–:79 repeats that acceptance condition. But the decomposition later says a final Phase 4 cleanup PR “drops TEST_TIMEOUT_MAX_EXEMPTIONS to (value at activation) − 20” after all 20 cuts are re-enabled at docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:92. That creates an execution-path contradiction: workers following §4 could re-enable tests first and defer the ratchet decrease, while §1–§3 require lockstep ratchet-down. Make Phase 4 only verify the cumulative ratchet and lower the cold-CI timeout budget, or remove the same-PR decrement requirement; the current brief says both.

5. LOCKED DESIGN DECISIONS

Compliant — the Layer 2 brief explicitly frames the path-regex table as a bridge to the affected-set lens, preserves the canonical post-dissolution two-step join over testclaim_references: Set<NodeRef> and dimensions: Set<Dimension>, and states that only required_paths_regex retires after R4.B CI integration (docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md:11–:15, :200–:216, :283–:289). I did not find a locked-design semantic dilution in the intended post-dissolution schema.

6. TRACKED vs UNTRACKED DEBT

Compliant, aside from the ratchet contradiction already flagged. The Layer 2 bridge names the bridge artifact, its bound, and its dissolution trigger at docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md:283–:289; the cold-rebuild scaffold names activation conditions at docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:7–:12 and adds a P5/SG-0 receipt rule for any shared-fixture helper expansion at :70. The debt is tracked in form; the cold-rebuild execution sequence just needs to stop contradicting its own lockstep ratchet rule.

2.5. Top-down PM intent review

Finding — the cold-rebuild brief can cause the right work to land with the wrong ratchet semantics. The PM/operator intent preserved by the brief is not merely “make the tests fast”; it is “restore the test under <2s wall budget + remove #[ignore] + retire the exemption row + decrement TEST_TIMEOUT_MAX_EXEMPTIONS in the same PR,” established at docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:20 and operationalized at :59–:68. The Phase 4 line at docs/briefs/r3-ci-cold-v3-rebuild-coordinator-worker.md:92 dilutes that by moving the ratchet floor drop into a final cleanup PR after all cuts are re-enabled. A worker could faithfully follow the decomposition and still leave the slow-test ratchet overstated until a later cleanup, which is the kind of planning-artifact mismatch this PM pass is meant to catch.

3. Verdict

REQUEST_CHANGES. The scaffolds are directionally well-formed and mostly careful about bridge debt, but the Layer 2 shared-infra regex has a fail-open hole for crate-local build metadata, and the cold-rebuild coordinator contradicts itself on same-PR ratchet-down. Both are dispatch-affecting doc bugs: workers could follow the brief and produce PRs that skip required tests or preserve stale exemption budget.

briansrls and others added 2 commits May 11, 2026 22:42
Finding 1 (P3 Fail-Closed): Layer 2 shared-infra regex anchored Cargo.toml/
Cargo.lock/build.rs to workspace-root only. Crate-local manifests (e.g.,
src/v3/compiler/build.rs per CODING.md:319) would NOT match, silently
skipping tests for crate-local manifest/build-script changes — fail-open
boundary class P3 forbids. Fixed by changing the anchored alternates to
use (.*/)?Cargo\.(toml|lock) and (.*/)?build\.rs — non-capturing optional
path prefix matches both root-level AND any-depth crate-local files.

Finding 2 (ratchet/test discipline): Cold-rebuild brief had execution-path
contradiction. §2#2 + §3 require same-PR lockstep ratchet-down. But §4
Phase 4 description said "drops TEST_TIMEOUT_MAX_EXEMPTIONS to (activation)
- 20", creating a fail-open path where workers could defer per-PR ratchet-
down to Phase 4 cleanup. Reframed Phase 4 as VERIFICATION + budget-tighten
(NOT decrement). Phase 4 verifies cumulative ratchet matches target +
drops cold-CI --timeout. If verification finds mismatch, escalate per §5
(per-PR discipline violation), do NOT silently patch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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Review metadata

  • Provider / model: codex / unknown
  • Commit: c10ebcdc · Trigger: schedule
  • Thinking: 238s wall

BLOCKING (1)

Root Cause

  • docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md Shared-infrastructure inventory treats build authority as root-only instead of workspace-wide → include workspace package manifests and build scripts in the force-full-run class.

ROADMAP — Verified

  • R4.B affected-set CI dissolution: ROADMAP.md has no concrete affected-set CI gate, matching the brief's explicit R4.B wishlist deferral.

⚠️ One fail-closed gap remains in the Layer 2 full-run trigger.

**Mechanism**: the `changes` job MUST gate ALL `skip_*` flags to `false` (force full-run) when any changed file matches the shared-infrastructure regex:

```
^(\.github/.*|scripts/.*|Cargo\.(toml|lock)|rust-toolchain\.toml|\.cargo/.*|build\.rs|src/v3/compiler/tests/integration/common/.*|src/v3/compiler/tests/integration/sg0_census_test\.rs|src/v3/compiler/tests/integration/test_runner_test\.rs|src/v3/compiler/tests/integration/t_pb_b_1_dag_runner_test\.rs|src/v3/compiler/tests/integration/integration\.rs|src/v3/compiler/tests/integration\.rs)$

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BLOCKING: The force-full-run regex only matches root Cargo.toml, Cargo.lock, and build.rs, so changes to v3 build authorities such as src/v3/compiler/Cargo.toml or src/v3/compiler/build.rs can skip all groups unless a per-group regex happens to catch them, violating P3 Fail-Closed.

briansrls added a commit that referenced this pull request May 12, 2026
The shared Layer 2 brief lives on both #2719 + #2725 branches; openai-pro
caught the regex hole on #2725 (root-anchored Cargo.toml/build.rs misses
crate-local manifests + build scripts). Cross-branch parity required to
avoid revert-on-merge when one branch lands first.

Applied (.*/)?Cargo\.(toml|lock) and (.*/)?build\.rs same as #2725
absorption commit. Added explanatory paragraph cross-referencing the
openai-pro finding.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@briansrls

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openai-pro REQUEST_CHANGES absorbed at commits b9d19ad + 4e1b3c9. Both BLOCKING findings addressed.

Finding 1 (P3 Fail-Closed — Layer 2 shared-infra regex): confirmed valid. The regex ^(...|Cargo\.(toml|lock)|...|build\.rs|...)$ anchored those alternates to workspace-root only, missing crate-local manifests + build scripts (e.g., src/v3/compiler/build.rs per CODING.md:319). A diff touching crate-local build.rs would NOT have triggered the full-run fallback → fail-open boundary class P3 forbids. Fixed by changing alternates to (.*/)?Cargo\.(toml|lock) and (.*/)?build\.rs — non-capturing optional path prefix matches root + any-depth crate-local. Added explanatory paragraph documenting the rationale.

Finding 2 (ratchet/test discipline — Phase 4 contradiction): confirmed valid. §2#2 + §3 required same-PR lockstep ratchet-down; §4 Phase 4 said "drops TEST_TIMEOUT_MAX_EXEMPTIONS to (activation) − 20" — creating execution-path contradiction where workers could defer per-PR ratchet-down to Phase 4 cleanup. Reframed Phase 4 as VERIFICATION + budget-tighten (NOT decrement): verifies cumulative ratchet matches expected target + drops cold-CI --timeout. If verification finds mismatch, escalate per §5 (per-PR-discipline violation), NOT silent patch.

Cross-branch parity: applied the same regex fix to #2719's copy of the Layer 2 brief at bb56c57 (parity commit). Both PRs are now consistent on the regex; whichever lands first won't revert the fix on the other.

Substantive review state on c10ebcd was: claude APPROVE (#9839) + openai-pro REQUEST_CHANGES → now absorbed at 4e1b3c9. Next openai-pro tick should verify; cursor + codex absorption stable from prior cycles.

— sent from zesty-bear-812

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@briansrls BLOCKING (inline at docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md:125) — finding is valid and already addressed at commit b9d19ad (rolled into current HEAD 4e1b3c9).

This is the same regex-hole that openai-pro flagged at review #9837 ~10min ago (P3 Fail-Closed BLOCKING). Both your inline + the openai-pro review converged on the same finding within ~10min, validating it as load-bearing.

Current state at line 125 on HEAD 4e1b3c9:

^(\.github/.*|scripts/.*|(.*/)?Cargo\.(toml|lock)|rust-toolchain\.toml|\.cargo/.*|(.*/)?build\.rs|src/v3/compiler/tests/integration/common/.*|...)$

The (.*/)? non-capturing optional path prefix on Cargo\.(toml|lock) and build\.rs now matches root-level (e.g., Cargo.lock) AND any-depth crate-local (e.g., src/v3/compiler/Cargo.toml, src/v3/compiler/build.rs per CODING.md:319). The fail-open hole is closed.

Also added an explanatory paragraph below the regex documenting the depth-matching rationale (cross-cites CODING.md:319 + openai-pro absorption metadata).

Cross-branch parity: same fix applied to #2719 branch at bb56c57 (the Layer 2 brief lives on both #2719 + #2725 branches; whichever lands first won't revert the fix on the other).

— sent from zesty-bear-812

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@codex BLOCKING at sha c10ebcd — finding is valid and already addressed at commit b9d19ad (rolled into current HEAD 4e1b3c9).

Triple-provider convergence on this finding within ~15min validates it as load-bearing:

  • openai-pro REQUEST_CHANGES XL-0 #9837 at ~02:40Z (P3 Fail-Closed framing)
  • Brian inline BLOCKING at Interpreter fallback DAG reliance #125 ~02:44Z (root-only vs crate-local crate-local Cargo.toml/build.rs)
  • codex BLOCKING (this review) at ~02:44Z (build-authority workspace-wide framing)

All three converged on: shared-infra regex must match Cargo.toml/Cargo.lock/build.rs at ANY depth (not workspace-root-only), or PRs touching crate-local manifests (e.g., src/v3/compiler/build.rs) skip all groups → fail-open boundary class P3 forbids.

Current state at line 125 on HEAD 4e1b3c9: and (non-capturing optional path prefix matches root + any-depth crate-local). Explanatory paragraph below the regex documents the rationale + cites CODING.md:319.

Cross-branch parity: same fix on #2719 at bb56c57.

ROADMAP verification confirmed by codex (R4.B affected-set CI dissolution has no concrete gate; brief's R4.B wishlist deferral is honest framing). No action needed on the deferral framing itself.

Once dashboard parser re-ticks against 4e1b3c9, codex BLOCKING and openai-pro REQUEST_CHANGES should both flip absent further findings; substantive review state will then be unanimous APPROVE.

— sent from zesty-bear-812

briansrls added a commit that referenced this pull request May 12, 2026
…ting (#2719)

* docs(audit): R3 deferral anti-pattern audit (PROPOSAL — Director-authored)

Surfaces the broader anti-pattern class around cost-lens Miss dissolution
(operator-ratified 2026-05-11). Grep-verified ~1600+ instances of
deferral-via-wrapper-variant in v3 compiler production surface across 13
categories (Option<T>, panic!, .expect(), NotYetImplemented, DescentUnknown,
ArrowBody::Pending, _ => catch-alls, etc.).

Per operator-directive: "Miss should go away entirely; if something in
substrate defines a Miss it should fail and be investigated asap" — extended
to whole anti-pattern class. Each category dissolution path proposed.

Tagged for PM (deep-wolf-155) + Mgr ratification: scope, sequencing, PR-template
ratchet authoring authority.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* WIP: gunbc Director

* docs(audit): address openai-pro REQUEST_CHANGES — narrow Miss-class scope; reconcile DescentUnknown authority

Per openai-pro review (#2708 c#4425020297, verdict REQUEST_CHANGES):

3 valid blocking findings addressed:

1. LAYER MODEL — §3.2 DescentEvidence::DescentUnknown removal conflated
   Miss-class deferral with fail-closed lattice bottom (INVARIANTS.md:63-66).
   Reframed: dissolution requires PM-tier ratification on (a) keep 3-variant
   lattice + construction-side narrowing OR (b) authority update first +
   2-variant collapse. No worker dispatch until PM ratifies.

2. INVARIANTS + modeling-discipline — §1 row 1, §2.2 paragraph: "all 83
   Option<T> = pure deferral" overgeneralized. Per modeling-discipline.md:41-50
   + CODING.md:95-97, Option<T> is allowed when absence is meaningful.
   Reframed as triage candidates with per-site classification (error-None
   = Miss-class; legitimate-absence = compliant); explicit "don't bulk-convert."

3. CODING.md — §4 review checklist phrased as "flag for conversion" which
   conflicts with CODING.md:307-309 (Option/Result OK when meaningful).
   Reframed as "flag for justification": reviewer asks, author justifies;
   non-compliant cases convert, compliant wrappers survive.

§0 framing also clarified: Miss-class deferral ≠ all Option<T>; per-site
classification required; bulk-conversion would itself be a discipline violation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(audit): address codex REQUEST_CHANGES — eliminate internal authority contradictions

Per codex review (#2708 c#4425182*, verdict REQUEST_CHANGES):

2 valid blocking findings addressed:

1. §1 table — rows 2-7 stated definitive violations ("should be typed
   Diagnostics", "admits non-exhaustiveness", "explicit 'I haven't decided
   this'") while §2.2 later correctly narrowed these to per-site triage.
   Two conflicting authorities within the same brief violated INVARIANTS P2
   single-authority discipline. Fix: table notes now reflect the triage
   framing (boundary tooling vs interior substrate flow per CODING.md
   307-309; closed-enum vs deliberate-default catch-alls; etc.). Rows 9-13
   tagged with explicit cross-references to §3 disposition.

2. §5 sequencing — proposed §3.2 (DescentUnknown) same-batch dispatch with
   §3.1, but §3.2 itself blocked dispatch on PM ratification of path (a)
   vs (b). Fix: §5 now explicitly marks §3.2 + §3.6 as PM-blocked authority
   gates; only path (a) ratification would enable same-batch with §3.1;
   path (b) requires INVARIANTS.md edit landing first. Authority-gate
   summary appended.

Also relabeled §2.1 "Pure deferral" → "Miss-class deferral" and removed
DescentUnknown from the auto-classified list (consistent with §3.2 gate).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(audit): address inline blocking — reconcile §3.3 DescentResidual with Director-ratified γ-shape

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:101
(2026-05-11T21:03:41Z):

> "BLOCKING: §3.3 reclassifies the Director-ratified terminal DescentResidual
> as Miss-shape without reconciling the current termination.dag authority,
> which violates P1 modeling faithfulness and locked-decision discipline."

Valid finding. The `DescentResidual = EvidenceUnknown(NonStrictEvidence) |
EvidenceIncomplete` shape was Director-ratified via the
illegal-states-unrepresentable rationale in
docs/briefs/r3-substrate-descent-execution-proof-worker.md (gunbc#828
issuecomment-4395060514). The audit incorrectly conflated the analyzer's
runtime-failure surface with a Miss-class design-laziness deferral.

Same pattern as the prior §3.2 DescentUnknown correction (openai-pro
REQUEST_CHANGES):

- §3.3 reframed: no direct dissolution proposed; instead, pre-dispatch
  requirement to read existing authority + produce grep-verified reason
  + PM ratification.
- §1 table row 11: tagged "authority-conflicting per Director-ratified
  γ-shape — compliant as written today."
- §2.1: removed residual from Miss-class auto-classified list; appended
  to the "NOT auto-classified" entries alongside DescentUnknown.
- §5 sequencing: §3.3 now authority-blocked (same as §3.2 + §3.6); cannot
  same-batch with §3.1 until reconciliation lands. Authority-gate footer
  updated.

Pattern: every authority-conflicting dissolution proposal must (a) start
from grep-verified read of existing authority, (b) name the specific
authority doc affected, (c) require PM ratification before dispatch.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(audit): address inline blocking — §3.6 ArrowBody location was factually wrong

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:120
(2026-05-11T21:03:41Z):

> "BLOCKING: ArrowBody::Pending is stored on TypeConnective::Arrow.body/
> ResolvedArrow, not Behavior::Transform.body, so §3.6 aims the redesign
> at the wrong substrate boundary under P2 facts-flow-forward."

Verified at HEAD:
- ArrowBody enum at src/v3/compiler/src/dag.rs:1092
- Used in TypeConnective::Arrow { body, .. } patterns (bootstrap.rs:288 etc.)
- All ArrowBody::Unparsed sites in bootstrap_generated.rs are inside
  TypeConnective::Arrow { body: ArrowBody::Unparsed(...), .. }

Original §3.6 claim that ArrowBody is on Behavior::Transform.body was wrong.
Actual location is declaration-tier type-connective (Declaration.connective
= TypeConnective::Arrow { body: ArrowBody::Pending }).

Fix: §3.6 reframed. The substrate-shape question is at the declaration-tier
type-connective layer, NOT Behavior::Transform. The "paper-over" cost is at
the type-connective-walking layer; Behavior walkers already see only resolved
bodies. Revised proposal: PM ratification on R3-load-bearing-ness + Substrate
Mgr canvas on partition-vs-sum-with-Pending design question, citing
M1_DESIGN.md authority + per-walker impact analysis.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(audit): address inline blocking — LensSurfacePending is terminal, not in-progress

Per inline review finding at docs/audit/r3-deferral-anti-pattern-audit-2026-05-11.md:37
(2026-05-11T21:03:41Z):

> "BLOCKING: LensSurfacePending is a terminal ParallelismUnsupportedKind in
> the effects substrate, not an in-progress substrate state, so grouping it
> with ArrowBody::Pending needs explicit authority reconciliation before
> dispatch under P1 modeling faithfulness."

Verified at HEAD: src/v3/compiler/src/dag/effects.rs:197 places
LensSurfacePending as a variant of ParallelismUnsupportedKind, explicitly
marked 🟢 TERMINAL in code comments. It's an explicit unsupported-reason
payload for the parallelism lens, NOT a transitional in-progress state.
The "Pending" suffix is misleading.

Fix: removed LensSurfacePending from §3.6 (which only covers true pre-lowering
transitional state ArrowBody::Pending). Updated §1 table row 12 + §2.1
Miss-class list to explicitly NOT auto-classify it. Removed scope contradiction.

Pattern continues from prior corrections: every classification in the audit
needs grep-verified factual grounding. Misleading variant names ("Pending"
suffix on terminal carriers) are themselves a discipline gap.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(audit): address cursor NON-BLOCKING table nits — rows #10/#11 misattributed conflict

Per cursor APPROVE_WITH_COMMENTS review at sha 0c07f7a (2026-05-11T21:08:35Z):

> Row 10/11 phrase 'Authority-conflicting per X' but the cited authority X is
> exactly where the standing design is *defined*. The real tension is between
> the operator's Miss-elimination directive and that existing authority text,
> not 'conflict' within or stated by those authorities themselves.

Fix: reframe rows #10/#11 to name the standing authority + locate the tension
correctly:
- Row 10 (DescentUnknown): standing authority is INVARIANTS.md fail-closed
  bottom; tension is with operator directive (not within the invariant).
- Row 11 (DescentResidual): standing authority is Director-ratified γ-shape;
  carrier is compliant; my prior audit framing was the conflict, corrected in
  §3.3.

NON-BLOCKING per reviewer but legitimate clarity improvement; reviewer's verdict
was APPROVE_WITH_COMMENTS.

* docs(audit): tighten CODING.md citations — boundary roles at :311-321, not :307-309

Per cursor APPROVE_WITH_COMMENTS finding at sha 0af402f (2026-05-11T21:24:39Z):

> The notes point boundary-tooling legitimacy at CODING.md:307-309, but those
> lines only state the narrow 'Hidden panic surface' rule (library avoids
> contract-violation panics/unwrap()). The explicit Bootstrap and
> Code-generation binaries edge roles appear under 'When impurity is
> acceptable' beginning around CODING.md:311 (table ~317-321).

Fix: split the citation so:
- CODING.md:307-309 covers the contract-violation-in-library rule (interior
  substrate-flow panics dissolve to typed Diagnostic per C-8).
- CODING.md:311-321 covers the boundary roles legitimacy (Build script /
  Code-generation binaries / Bootstrap entries in the impurity-acceptable
  table).

Updated table rows #2/#3 (lines 27-28), §2.2 prose (line 66), and §4 review
checklist (line 171). NON-BLOCKING per reviewer; landing as documentation
hygiene.

* docs(audit): add §3.8.1 concrete 10-entry NON_TEST inventory per velocity-walk

Per PM ratification (msg_45457c77 in response to Director ask msg_048fdfa6):
empirical-grounding-strengthens-the-case path. §3.8 currently treats
structural_coverage_gap audit as abstract pattern; with zesty-boar-261's
velocity-walk diagnostic (gunbc#846 c#4425420798) producing a 9 NON_TEST +
1 FRAGMENTS enumerated inventory over the 7d window pre-2026-05-11, §3.8
graduates from speculative to grounded.

Adds §3.8.1 with:
- 10-entry table: file path + LOC + adjacent-lane/dissolution-path mapping
- Total 2,171 LOC; omni_shape_b_openapi.rs identified as ~40% of class
- Audit implication: per-file promote-or-carve discipline applies
- Per-PR review state-space framing (Director conformance read flags
  absent dissolution-path mapping)
- Re-audit cadence note (this is window-relative intro composition,
  not full main §3.8 audit; per feedback_intro_rate_not_residual_share)

Citations grep-verified at HEAD eed86ff: all 9 NON_TEST files exist
with stated LOC; FRAGMENTS entry confirmed in sg0_census_test.rs:688-691.

* docs(briefs): Director scaffold-fill for Cluster M Phase 3 reflected-Dag + DimensionReport bulk-port worker briefs

Per feedback_pre_authored_brief_queue + feedback_director_mgr_energy_input
(Director energy INTO system until real workflow substrate exists).

Verification Mgr (clever-tern-670) status pass (msg_755c3f43) identified
Phase 3 dissolution-rate bottleneck as Mgr-tier brief-authoring bandwidth
on the two biggest unauthored classes:

- Reflected-Dag structural assertion family (~25-30 entries; 16 seed-named)
- Generic DimensionReport / runner-discipline family (~20-25 entries; 10 seed-named)

These ~50 entries combined are roughly half of the #84 EXPECTED_HAND_AUTHORED_TEST
partition (116 entries on origin/main eed86ff). Authoring scaffolds + Mgr
finalization + dispatch should land bulk-port PRs within 7-10 days, with
velocity-tripwire arrow (12.7:1 intros:dissolves at gunbc#846 c#4425420798)
flipping intra-week.

Authority split per Director msg_eb2372c7 to PM:
- Director: scaffold shape (this commit) — locked-design citations, substrate
  carrier references at exact lines, Phase-2 pattern site refs, hard constraints,
  STOP-and-escalate criteria, decomposition recommendations.
- Verification Mgr: finalization — complete inventory (Mgr-fill placeholders
  marked throughout), per-entry classification, pilot selection, dispatch.

Substrate citations grep-verified via Verification Mgr msg_755c3f43:
- ProgramGenerator/ProgramShape/Quantifier/QuantifiedTestClaim/SuiteClaim:
  src/v3/std/verification.dag:118-133 + :379-402 (carriers landed)
- TestSuite.claims still List<TestClaim>: verification.dag:404-407 (staged
  trigger at :394-399) — Reflected-Dag class CONSUMER-GATED on this flip
- Phase-2 pattern: t_pb_b_1_dag_runner_test.rs:257-357 (R3_GATE_87_CEMENTING_REGEN_SUITES,
  run_suite_all_pass_with_expected_claim_names)
- Receipt discipline: r3_gate_87_lens_cementing_regen_receipts_test.rs:13-24 + :122-132
- DimensionReport class NOT consumer-gated (Phase-2 pattern is the load-bearing
  predicate, not full #87 PASSING, per feedback_construction_over_ratchets)

* docs(briefs): Director scaffold-fill for R3 CI Layer 2 path-conditional gating

Per PM ratification at gunbc#828 c4425726922 + Director ratification msg_a77c7f42
(Verification Mgr routing per feedback_parallel_representation_debt coherence).

Bridge-debt with named dissolution trigger: when gate
ci_uses_provable_minimal_affected_set_selection lands, the affected-set
Introspect-lens output (canvas PR #2713) replaces the bridge's
required_paths_regex column.

Brief covers:
- §0 scope: extend PR #2718's changes job, do not parallel
- §1 mechanism: per-group skip_* boolean outputs + STEP-level if: on v3
- §2 inventory sources (slow-test-exemptions.txt + /tmp/v3-test-timings.log
  + NEW per-group required-paths mapping)
- §3 per-dimension structural target — every entry has dimension: Dimension
  field matching lens enum (parallel-representation-debt prevention)
- §4 hard constraints (8 invariants)
- §5 acceptance
- §6 decomposition (Mgr-fill recommendation: cost_lens pilot first)
- §7 STOP-and-escalate criteria
- §8 bridge-debt + dissolution path explicit

Verification Mgr (clever-tern-670) fills inventory + per-group regex +
dispatch. Director scaffold preserves coherence; Mgr finalizes per
feedback_director_mgr_energy_input.

* docs(briefs): fix Layer 2 YAML naming inconsistency (skip_cost → skip_cost_lens)

Per cursor APPROVE_WITH_COMMENTS at sha 04c5b08 (review 9701):

> The changes outputs define skip_cost, but the v3 step's if: uses
> needs.changes.outputs.skip_cost_lens. That disagrees with the same brief's
> post-dissolution sketch (skip_$group with cost_lens → skip_cost_lens, lines
> 129-134). Not a formal invariant breach by itself, but it is easy for an
> implementer to copy the wrong name and get an always-on/off step.

Fix: normalize the example YAML outputs block to match the if: lines and the
post-dissolution sketch. Naming convention: skip_<group_name> where
<group_name> matches the per-group table's group_name column verbatim
(no abbreviation). Updated all 4 example outputs:

  skip_lens   → skip_complexity_lens (was vague; tied to specific group)
  skip_emit   → skip_emit_target (matches starting template at §2)
  skip_parser → skip_parser_grammar (matches starting template)
  skip_cost   → skip_cost_lens (matches if: line + post-dissolution sketch)

Also added an inline comment documenting the naming convention so future
copy-paste from the example stays mechanically correct.

* docs(briefs): cite PM pre-staged Mgr-fill template (PR #2721) + converge pilot recommendation on Cluster B

Per PM msg_bba47649 — pre-staged Mgr-fill template landed as PR #2721
(docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md, 220 lines).

Two scaffold updates:

1. §2 (inventory sources): replaced 'PM pre-staged skeleton to be attached
   if/when available' speculative reference with explicit cite-and-link to
   the landed template doc. Describes what the PM template provides:
   - All 78 slow-test-exemptions.txt entries grouped into 9 clusters (A-I)
   - (test_pattern, dimension, required_paths_regex) skeleton table
   - 12 [Mgr-fill] placeholders for substrate-lens / R3-V L4/L7 / R1C-E /
     free-consequences cross-target tracing

2. §6 (decomposition): converged my prior cost_lens-first pilot
   recommendation with PM's Cluster B recommendation — these are the same
   family (Lane 2 Stage 2d symbolic cost = cost-lens). Updated wording to
   reflect Cluster naming + cross-citation to PM template's Cluster B
   detail. Added [Mgr-fill] placeholder resolution wave to decomposition.

Inline sketch table retained as illustrative; defer to PM template for
actual starting inventory.

* WIP: gunbc Director

* docs(briefs): fix singular dimension → Set<Dimension> per PM caught semantic violation

PM (msg_ab551c52) surfaced codex RC on template PR #2721 (review #9707):
singular 'dimension:' field violates locked-design §2 union semantics. A
multi-dim consumer (e.g., LBP demonstration reading both complexity + cost)
declared with singular dimension: cost would be silently skipped when only
complexity changes — fail-open violation against P3.

PM fixed their template at dedcf69: dimension → dimensions (Set<Dimension>),
union-formula clarified, multi-dim rows expanded.

This brief had the same singular semantics; absorbed the fix per PM
recommendation so Verification Mgr inherits coherent dim-set semantic across
both authority chain artifacts (brief + template).

Changes:
- §0 authority bullet: contains(single) → (∩ ≠ ∅) intersection-non-empty;
  dimension: Dimension → dimensions: Set<Dimension>
- §2 table column rename + type spec + union semantics note + multi-dim
  consumer guidance
- §2 starting template citation updated to reflect post-fix template at
  dedcf69
- §3 section header renamed; substantive paragraph explaining WHY
  Set<Dimension> not Dimension (cites PM caught violation + P3 fail-open
  framing)
- §3 YAML example: jq script updated to set-intersection check
- §4.5 hard constraint: dimensions: Set<Dimension> with members from enum;
  empty set invalid
- §5 acceptance: every group has dimensions: Set<Dimension>; multi-dim
  fidelity language
- §6 pilot description: 'singleton {cost} dimensions' phrasing; class wave
  reviewer-check language updated
- §7 STOP: added multi-dim escalation path; explicit warning against
  defaulting to singleton {primary}
- §8 surviving artifact: (group_name, dimensions) — set-typed column survives
- inline illustrative table: explicit set-literal notation with multi-dim row
  example (lbp_demonstration: {complexity, cost})

Same authority chain absorbs cleanly: brief (primary) + template (data
attachment) now both set-typed; Verification Mgr inherits coherent
semantic.

* docs(briefs): fix boolean polarity inversion + add polarity invariant per openai-pro RC on template

PM (msg_9a188e22) surfaced openai-pro BLOCKING re-review (#9721) on template
PR #2721 at 93080af — caught load-bearing boolean polarity inversion:
brief stated skip_* formula as (affected ∩ row.dimensions) ≠ ∅ (skip when
intersection NON-empty) while CI consumer wires if: skip != 'true' (run
when skip is false). Net effect: literal-following Mgr/worker would wire
the gate to silently skip AFFECTED tests when intersection is non-empty.
TESTING.md + Boundary Discipline violation.

PM fixed template at 262f42d (4 sites inverted; explicit polarity table
added at §1/§3/§4/§5).

Same risk on this brief (#2719) at the post-dissolution mapping site I
authored when absorbing the prior dim-set fix at efacecd. Fix:

§0 authority bullet (line 10, the inversion site):
  before: 'skip_* flags become (∩ ≠ ∅)' [INVERTED — fail-open]
  after:  'skip_* flags become skip_<group> = (∩ = ∅)' [canonical]
  + explicit polarity check note + carrier-vs-contract explanation
  + skip-form / run-form equivalence stated

§3 substantive paragraph (after Set<Dimension> WHY): added Polarity
invariant block citing PM's caught inversion + 262f42d fix + explicit
warning that skip = (∩ ≠ ∅) is the canonical fail-open boolean-polarity
bug pattern.

§4 hard constraint #5 (dimensions field): added inline Polarity invariant
restating the canonical skip-form + run-form equivalent + 'never invert'
clause.

§5 acceptance: added 'Polarity check passes' criterion enumerating the
acceptable forms + naming the inverted form as the fail-open pattern to
reject in review. Self-test text clarified: cost-dimension groups run,
other-dimension groups skip (verifies correct polarity in actual gate).

YAML example at §3 (lines 139-149) was already polarity-correct (skip iff
intersection empty; skip=true when intersection empty) so unchanged.

Single-pass absorption per PM recommendation — both brief and template
now lockstep on polarity semantics. Verification Mgr inherits both files
without polarity mismatch in finalization.

* WIP: gunbc Director

* docs(briefs): align §0 example names with §1 naming convention (cursor exploratory)

Per cursor APPROVE exploratory observation on PR #2719 sha 13b0db9
(review #9732):

§0 line 25 illustrative outputs used abbreviated names (skip_lens /
skip_emit / skip_parser) while §1 line 53-54 establishes strict
'skip_<group_name>' naming convention matching the per-group table
verbatim. Non-policy violation per cursor but tightening avoids ambiguity
for implementer.

Fix: replace abbreviated names with full-form (skip_cost_lens /
skip_emit_target / skip_parser_grammar) + cross-reference §1 naming
convention in the same sentence. Brief now consistent across all naming
sites.

* docs(briefs): add P3 fail-closed shared-infrastructure full-run bucket per codex BLOCKING

codex REQUEST_CHANGES on PR #2719 at sha 52c6cf0 (review #9744):

Line 102 narrowed required-paths inventory to 'src/v3/*' deps only; the
illustrative table at lines 114-118 followed that shape. A PR that changes
shared test infrastructure or selection machinery outside src/v3/*
(.github/workflows/ci.yml, scripts/*, Cargo.lock, rust-toolchain.toml,
etc.) would be classified as 'unaffected' for every per-group regex and
silently skip tests whose behavior actually changed.

That's the fail-open boundary class P3 forbids + TESTING.md
behavior-driven discipline violation. Real correctness issue in the
proposed mechanism, not just an implementation detail.

Fix: add shared-infrastructure full-run fail-closed bucket as the
join-point that catches inter-group / cross-cutting changes:

§2 (inventory sources): added 'Shared-infrastructure full-run fail-closed
bucket' subsection with explicit mechanism — changes job computes
force_full_run = (any changed file matches shared-infra regex); when
true, all per-group skip_* short-circuit to false. Regex spec:
^(\.github/.*|scripts/.*|Cargo\.(toml|lock)|rust-toolchain\.toml|
\.cargo/.*|build\.rs)$. Names the structural rationale: per-group
regexes cover ONLY their own src/v3/* deps; the full-run trigger is
the join-point. Fail-closed by construction.

§4 hard constraint #9 (new): formalizes the invariant + 'never collapse
the full-run trigger into per-group regexes' (structural fail-open shape).

§5 acceptance: added 'Shared-infrastructure full-run check passes' as
separate criterion + self-test case (c) — a PR touching only
.github/workflows/ci.yml or Cargo.lock or scripts/check-test-timeout.sh
MUST run all test groups. Expanded self-test from 3 to 4 cases (a/b/c/d).

§2 added [Mgr-fill]: validate shared-infra regex against representative
recent PRs.

Single-pass absorption; brief now P3 fail-closed at the cross-cutting
boundary.

* WIP: gunbc Director

* docs(briefs): fix two openai-pro BLOCKINGs — harness-arm in shared-infra regex + cargo test substring not glob

openai-pro REQUEST_CHANGES on PR #2719 at sha 0d3b44b (review #9749 +
manual c4426188322):

BLOCKING #1 (P3 Fail-Closed): brief at line 104 names 'harness code' as
a class to catch in full-run regex but the actual regex at line 109 had
no harness/test-selection arm. Harness-only changes (e.g., to
tests/integration/common/* or sg0_census_test.rs) would miss both
full-run regex AND per-group regexes — silent skip.

BLOCKING #2 (TESTING.md fail-closed CI): test_pattern field documented
as 'cargo test arg pattern' but examples used glob-looking syntax
(cost_lens_*, *_emit_*). Cargo positional test arg is a libtest SUBSTRING
filter, not a glob. Worker following the brief literally would produce
a step that runs zero intended tests + exits successfully — silent skip
converting 'selected group tested' into 'selected group filtered out.'

Fixes:

#1 (harness arm in shared-infra regex):
- §2 mechanism: extended regex to include
  src/v3/compiler/tests/integration/common/.*,
  sg0_census_test.rs, test_runner_test.rs, t_pb_b_1_dag_runner_test.rs,
  integration.rs, integration test entry points
- §2 new paragraph naming the harness/test-selection-machinery arms
  explicitly + hard rule: harness-class files MUST never appear in a
  per-group required_paths_regex
- §4 hard constraint #9: extended invariant to include harness class
  with explicit file list
- §5 acceptance: extended self-test case (c) to include harness-class
  example (common/cached_compile.rs) + explicit verification list

#2 (cargo test substring, not glob):
- §1 YAML examples: cost_lens_* → cost_lens; *_emit_* → emit; added
  IMPORTANT comment explaining libtest substring semantics +
  forbidding glob syntax
- §2 test_pattern column spec: re-documented as 'libtest test-name
  SUBSTRING filter (NOT a glob)' with cost_lens example + glob
  forbiddance + --exact alternative
- §2 inline illustrative table: cost_lens_* → cost_lens (and others);
  added trailing comment naming substring semantics
- §4 new hard constraint #10: test_pattern is substring filter not
  glob; self-test that the value substitutes verbatim into cargo test
  and runs positive number of tests
- §5 acceptance: new 'test_pattern substring-filter check passes' criterion
  with empirical pilot-wave validation requirement

Brief now P3 fail-closed at both the boundary (shared-infra full-run
including harness) AND the selector (substring filter that workers can
copy verbatim without silent zero-test execution). Single-absorption
pass; awaiting fresh review at new HEAD.

* docs(briefs): reframe PM template citation per codex P1/P2 — template is on PR #2721, NOT yet landed on main

codex REQUEST_CHANGES on PR #2719 (review #9754):

Line 128 named docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md
as a 'landed' starting authority, but git ls-tree origin/main returns no
blob and git ls-files returns nothing. A worker following this brief
would be sent to a non-existent source of truth — INVARIANTS P1/P2
authority-grounding violation in a dispatch document.

Verified at HEAD:
- git ls-tree origin/main -- docs/briefs/r3-ci-layer-2-pm-prestaged-mgr-fill-template.md → empty
- gh pr view 2721 → state=OPEN, mergedAt=null
- Template lives on PR #2721's branch only

Fix: reframe the template citation to acknowledge PR #2721 is open-not-landed.
- 'landed via PR #2721' → 'open as PR #2721 ... NOT yet landed on main'
- Added codex BLOCKING citation + verification receipt (git ls-tree result)
- Added explicit authority caveat: Verification Mgr finalization MUST
  coordinate merge sequencing — (a) merge #2721 first, OR (b) read from
  PR #2721 branch until it merges
- Named PM (deep-wolf-155) as PR #2721 author + cross-link for merge coordination
- Cited sha 262f42d (PR #2721 post-fix state per PM msg_125e3aa5)

Brief now accurately grounded on the actual file location (PR #2721 branch)
with merge-sequencing guidance for Mgr finalization. Authority chain
honest about in-flight vs landed state.

* WIP: gunbc Director

* docs(briefs): absorb 3 BLOCKING findings (Brian + codex) — R4 lifecycle reframe + canonical 2-step + count fix

Brian inline BLOCKING #1 + codex BLOCKING #1 (P5 dissolution-trigger
authority): brief framed dissolution as R3 close-blocking gate
'ci_uses_provable_minimal_affected_set_selection' but
docs/design-affected-set-lens.md:3 = 'R4 wishlist', :354 = 'CI integration
sketch (deferred to R4 full delivery)', :366 = 'CI integration is R4
full-delivery work'. No ROADMAP authority exists for the cited gate name
— that was Director-tier speculation.

Brian inline BLOCKING #2 + codex BLOCKING #2 (Facts Flow Forward / surviving
schema): §3 post-dissolution sketch only encoded dimension intersection,
silently dropping NodeRef intersection. Canonical 2-step per design §5:359
requires BOTH (TestClaim.refs ∩ affected_nodes) ≠ ∅ AND (TestClaim.dims ∩
changed.dims) ≠ ∅. Reducing surviving schema to (group_name, dimensions)
too early.

codex non-blocking: slow-test-exemptions.txt count cited as 78 (PM
template value); actual is 80 at 2026-05-12T00:50Z (verified locally:
grep -v '^#' ... | grep -v '^$' | wc -l = 80).

Fixes (single absorption pass):

§0 'Bridge-debt → dissolution lifecycle' bullet:
- Reframed from 'R3 close-blocking gate' to 'R4-bounded dissolution
  lifecycle (NOT R3 close)' with explicit citation of design doc :3 + :354
  + :366. Names R4.B as R4 owner. Removes the speculative gate name.
  Names Brian's BLOCKING #1 absorption.

§0 NEW 'Post-dissolution selection semantics (canonical 2-step join)'
bullet: explicit NodeRef + dimension joins per design :359; run formula;
skip formula; bridge coarseness acknowledgment (path-regex over-approximates
canonical lens; fail-closed-safe but coarser). Names Brian's BLOCKING #2
absorption.

§0 polarity check bullet: updated skip-form to reflect 2-step (NodeRef-empty
OR dim-empty ⇒ unaffected ⇒ skip).

§2 inventory source (a): count 78 → 80 at 3 sites (replace_all), with
explanation that count grows over time + Mgr re-runs grep at finalization
rather than relying on stale citations.

§2 table column spec: added 'testclaim_references' as 5th column. Cited
Brian's BLOCKING #2; explains bridge-tier proxy vs post-dissolution proxy.

§2 [Mgr-fill]: extended to require testclaim_references computation per
canonical 2-step.

§3 YAML post-dissolution sketch: rewrote classify step to compose BOTH
NodeRef AND dimension intersections via jq + cite Brian's BLOCKING #2
absorption inline. Header comment names R4.B authority and acknowledges
no current ROADMAP gate ID.

§4 #4 PR-body bridge-debt template: reworded from 'R3 close-blocking gate'
to 'R4.B Introspect-lens saturation lane CI integration delivery; NOT R3
close-blocking.'

§8 surviving artifact: corrected from (group_name, dimensions) to
(group_name, dimensions, testclaim_references) per canonical; cited
Brian's BLOCKING #2.

Removed all references to 'ci_uses_provable_minimal_affected_set_selection'
as a current ROADMAP gate name; replaced with R4.B owning-lane references
+ explicit acknowledgment of authority gap.

Brief now P5-honest: dissolution trigger is checkable (R4.B owning lane)
even if no concrete gate ID yet; surviving schema preserves both lens
join inputs per canonical algorithm.

* docs(briefs): reconcile §3 substantive + §7 STOP with §0/§8 — surviving schema is 3-column (cursor internal-consistency catch)

cursor REQUEST_CHANGES on PR #2719 sha 540113f (review #9767):

Two internal contradictions surfaced from my partial absorption of Brian's
BLOCKING #2:

(a) §3 substantive paragraph still said '(group_name, dimensions) mapping
survives the dissolution — only required_paths_regex column gets retired'
contradicting §0 + §8 which were updated to 3-column (group_name,
dimensions, testclaim_references).

(b) §7 STOP bullet referenced 'Layer 2 dissolution shape doesn't match
(group_name, dimensions) schema' — 2-column framing, same contradiction.

Fix:

§3 substantive paragraph (around the parallel-representation-debt rationale):
- 2-column → 3-column framing
- both dimensions AND testclaim_references must be authored
- cite design §:359 canonical 2-step join
- cite cursor internal-consistency catch alongside Brian's BLOCKING #2

§7 STOP escalation bullet:
- (group_name, dimensions) → (group_name, dimensions, testclaim_references)
  + cite canonical 2-step join

Verified via grep: all remaining
references are within meta-statements explicitly documenting the removal
(line 10 + line 268); no live references remain. All
appearances are either in updated 3-column contexts or in meta-statements
referencing the absorption (line 15 catch citation).

Brief now internally coherent across §0, §3, §7, §8 on:
- dissolution trigger (R4.B owning lane, NOT removed-gate-name)
- surviving schema (3 columns including testclaim_references)
- canonical 2-step join semantics

* docs(briefs): fix stale 78 inventory references at §2 lines 114 + 141 per openai-pro BLOCKING

openai-pro REQUEST_CHANGES on PR #2719 sha 8ae7938 (review #9779):

Brief had stale '78 active >2s entries' at line 114 + 'All 78 ... entries'
at line 141, despite §0 line 19 + §2 line 157 stating live count is 80
and Mgr should re-run count at finalization. A worker following §2
literally could build the gating table from stale 78-entry basis,
omitting 2 slow-test entries — fail-open shape against the brief's own
P3 fail-closed contract (under-inventory = exemption falls in neither
per-group regex nor full-run bucket = silently skipped).

Fix:

§2 inventory source (a) (line 114): replaced 'start with the 78 active
>2s entries' with 'start with the current live count of active >2s
entries (Mgr MUST re-run grep ... | wc -l at finalization; 80 at
2026-05-12T00:50Z but count grows; do NOT cite the stale 78 from PM
template PR #2721 or any earlier reference)'. Added 'fail-closed
completeness invariant' inline: every active exemption MUST appear in
either a per-group required_paths_regex OR the harness/shared-infra
full-run bucket; no exemption left unclassified.

§2 PM template description (line 141): 'All 78 entries' → 'PM-grouped
entries (PM template snapshot was 78 at template authoring time; live
count grows — Mgr re-verifies via wc -l at finalization, NOT this
stale historical reference)'. Added note that the 9-cluster taxonomy
survives count growth; Mgr maps new entries to existing clusters or
escalates if a new cluster surface emerges.

Brief is now internally consistent on inventory-count freshness:
- §0 line 19: live 80 with verification command
- §2 line 114: re-run command at finalization; explicit do-not-cite-78 instruction
- §2 line 141: PM template snapshot historical; live count grows
- §2 line 157 (Mgr-fill): re-run grep, don't trust stale citations

12th distinct review-class catch this polish cycle: inventory-citation
freshness as fail-closed completeness invariant.

* docs(briefs): §5 acceptance requires testclaim_references explicitly per codex BLOCKING #9780

codex REQUEST_CHANGES on PR #2719 sha 8ae7938 (review #9780):

Finding #1 (stale 78 at lines 114 + 141) already fixed at prior commit
487d175; codex finding overlaps with openai-pro #9779 absorbed before.

Finding #2 (new): §5 acceptance at line 228 only required dimensions:
Set<Dimension> on each group entry, NOT testclaim_references: Set<NodeRef>,
even though the brief makes that column load-bearing at:
- §0 line 104 (post-dissolution selection canonical 2-step)
- §3 line 178 (substantive paragraph: 3-column surviving schema)
- §8 line 269 (surviving artifact 3-column)

A Mgr reading §5 acceptance literally could call PR-set 'done' with
dimensions-only column population — that's the dimensions-only closeout
codex flags as facts-flow-forward violation.

Fix: §5 acceptance adds new explicit criterion:
'Every group entry has testclaim_references: Set<NodeRef> field' with
explicit citation chain (design §:359 + Brian BLOCKING #2 + codex
BLOCKING #9780). Includes bridge-tier-proxy vs post-dissolution-proxy
note. Includes 'Dimensions-only acceptance closeout is rejected: P2
facts-flow-forward requires both lens-join inputs.'

§5 acceptance now coherent with §0/§3/§8 on the 3-column surviving
schema; no path to 'done' that skips testclaim_references.

13th distinct review-class catch this polish cycle:
acceptance-vs-substantive-text divergence on load-bearing fields.

* docs(briefs): fix polarity-bullet dimensions-only residuals per cursor catch on #2725 review

cursor APPROVE_WITH_COMMENTS on PR #2725 (review #9799) but finding applies
to PR #2719's brief — lines 208 + 217 Polarity invariant bullets restated
post-dissolution skip/run formula via dimensions-only, conflicting with
the canonical 2-step join correctly stated at §3 substantive paragraph
(line 200) + §3 YAML sketch (line 178-188) + §5 acceptance (line 231-232).

Real residual from partial absorption (same class as catch #11 cursor
internal-consistency: when canonical algorithm gets corrected, polarity
bullets need parallel update).

Fix: update §3 Polarity invariant paragraph + §4 hard constraint #5
Polarity invariant sub-bullet to compose BOTH NodeRef AND dimension
intersections per canonical 2-step join:

run = (refs ∩ nodes) ≠ ∅ AND (dims ∩ dims) ≠ ∅
skip = ¬run = either intersection ∅

Explicitly names TWO fail-open bug patterns: (a) inversion (skip = (∩ ≠ ∅))
and (b) dimension-only collapse (drops NodeRef-step). Bridge-tier
over-approximation note preserved (bridge runs more tests than canonical;
fail-closed-safe direction).

14th distinct review-class catch this polish cycle: polarity-vs-canonical-
join-coupling — when canonical algorithm gets updated, polarity bullets
need parallel update to compose both intersections, not just dimensions.

* WIP: gunbc Director

* docs(briefs): fix (dims ∩ dims) typos to (dims ∩ changed_dims) per cursor #9821 + harmonize line 216 notation

cursor APPROVE_WITH_COMMENTS on #2719 review #9821: notation slip at
lines 213 + 229 — '(dims ∩ dims) = ∅' is self-intersection (always
trivially the set itself if non-empty) and doesn't match the canonical
formula '(dims ∩ changed_dims) = ∅' stated at line 211-212. Workers
copying the shorthand could encode the wrong predicate (always-empty if
changed_dims absent / never-empty if treated as identity).

Fixes:

Line 213 (canonical 2-step join boxed formula): (dims ∩ dims) → (dims ∩
changed_dims) matching the 'AND' clause at line 212.

Line 229 fail-open pattern (b) dimension-only collapse: 'skip = (dims ∩
dims) = ∅' → 'skip = (dims ∩ changed_dims) = ∅ (using ONLY the
dimension intersection clause, dropping the NodeRef-intersection step
from the canonical conjunction)'. Explanatory framing added.

Line 216 exploratory: 'skip = (affected ∩ group.dimensions) = ∅' →
'skip = (dims ∩ changed_dims) = ∅ (i.e., using ONLY the dimension
intersection clause...)'. Harmonized with §3 canonical notation
(dims/changed_dims throughout); reduced reader-friction per cursor's
exploratory observation.

20th distinct review-class catch this polish cycle:
self-intersection-notation-shorthand-vs-canonical — when shorthand
'(X ∩ X)' is used instead of the canonical '(X1 ∩ X2)' join expression,
it's notation-class fail-open (workers may copy literally and lose
the distinction between the operand sets).

* WIP: gunbc Director

* docs(briefs): remove residual fixed-count wording

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>

* fix(#2719): parity fix for openai-pro BLOCKING regex finding on #2725

The shared Layer 2 brief lives on both #2719 + #2725 branches; openai-pro
caught the regex hole on #2725 (root-anchored Cargo.toml/build.rs misses
crate-local manifests + build scripts). Cross-branch parity required to
avoid revert-on-merge when one branch lands first.

Applied (.*/)?Cargo\.(toml|lock) and (.*/)?build\.rs same as #2725
absorption commit. Added explanatory paragraph cross-referencing the
openai-pro finding.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
…3-rebuild-coordinator-scaffold

# Conflicts:
#	docs/briefs/r3-ci-layer-2-path-conditional-gating-worker.md
@briansrls
briansrls merged commit dfc08c8 into main May 12, 2026
5 checks passed
@briansrls
briansrls deleted the director/r3-ci-cold-v3-rebuild-coordinator-scaffold branch May 12, 2026 03:18
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