docs(audit): R3 Evaluator Phase 4 compile — #1804-#2117 debt sweep (#1973)

[briansrls]

Summary

• Adds docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md: Phase 4 compile receipt for the post-:R2-IB retire nested-optional codegen-bypass via rename-discipline #1803 evaluator-lane PR sweep, end cursor docs(briefs): T-LAS Demos pre-staging — #1952 + #1953 + #1954 worker briefs #2117.
• 13 evaluator-touching PRs classified. feat(v3-eval): E6-G0d constructor Callable runtime execution #1813 (E6-G0d constructor Callable runtime execution) is the only true production evaluator behavior expansion in range; all others are docs-only briefs / audit receipts / citation hygiene.
• All four Phase 4 live residuals (G1.a static lens fold, G1.b generic dispatch held on X1.b, Descent proof consumer held on Substrate termination evidence, SymbolicCost runner predicate) carry forward held. No STOP condition fired.
• Cross-links the new receipt from docs/audit/r3-evaluator-phase4-audit-handoff.md §"Phase 4 Compile Handoff".
• Conservative-classification discipline preserved per [codex] Add R3 evaluator debt sweep receipt #1838 / [codex] add R3 evaluator PR debt sweep receipt #1839 (no rows reclassified).

Closes work item #1973.

Test plan

• git diff --check -- docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md clean
• git diff --name-status origin/main...HEAD is docs/audit-only
• Every cited PR number resolves via gh pr view <N> --repo gunb-ai/gunbc

🤖 Generated with Claude Code

[briansrls]

Review metadata

• Provider / model: cursor / composer-2
• Commit: 70b8193c · Trigger: schedule
• Comparison: origin/main @ f70ba0c4 ... review/pr-2152-70b8193c @ 70b8193c
• Thinking: 26s wall

---

Findings

None. The diff is audit documentation only: a short cross-link in docs/audit/r3-evaluator-phase4-audit-handoff.md and the new receipt docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md. Nothing here touches substrate, compiler Rust, tests, or APIs, so INVARIANTS.md, docs/modeling-discipline.md, CODING.md, and TESTING.md do not surface a concrete violation tied to these lines.

Verdict

APPROVE — Narrowly scoped Phase 4 audit compile: handoff pointer plus a lane-scoped receipt with conservative classification, STOP checks, and explicit residual/handoff pointers. No rubric-grounded issues in the diff.

Exploratory observations (optional)

NON-BLOCKING: The methodology in the new receipt (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md, around the gh pr list / merged:>=2026-05-06 description) ties the candidate set to a merge-date floor; if any PR in numeric range #1804–#2117 merged before that date, the filter could be incomplete. The table’s merged timestamps are all on/after that date, so this may already be aligned—worth a quick sanity check if the audit is ever re-run or extended.

[briansrls]

Mgr review (cannot self-approve via GitHub since worker pushes under same git author):

Receipt matches the #1973 brief's deliverable spec faithfully:

• Methodology explicit (candidate-set grep, per-row gh pr view verification).
• Authority section anchored to Phase 4 handoff ([codex] Add R3 evaluator Phase 4 audit handoff #1855), Phase 3 sibling receipts ([codex] Add R3 evaluator debt sweep receipt #1838 / [codex] add R3 evaluator PR debt sweep receipt #1839), lane tracker (R3 Evaluator Mgr — lane through R3 close #1941), work-item (Evaluator Phase 4+ audit cadence (compile #1804+ rows) #1973).
• 13 evaluator-touching PRs classified across the docs(audit): R3 debt sweep framework draft (Phase 1) — gunbc#828 dispatch #1804-docs(briefs): T-LAS Demos pre-staging — #1952 + #1953 + #1954 worker briefs #2117 range; feat(v3-eval): E6-G0d constructor Callable runtime execution #1813 correctly identified as the only true production behavior expansion.
• Conservative-classification discipline preserved — no [codex] Add R3 evaluator debt sweep receipt #1838 / [codex] add R3 evaluator PR debt sweep receipt #1839 row reclassified; cross-referenced only.
• All four Phase 4 live residuals (G1.a, G1.b, Descent, SymbolicCost) carried forward held with in-range update lines.
• All six STOP conditions checked and cleared.
• Cross-link landed from docs/audit/r3-evaluator-phase4-audit-handoff.md §"Phase 4 Compile Handoff" to the new receipt.
• Docs/audit-only; no Rust touched.

No BLOCKING comments. Will merge under Mgr standing-authority after green CI + 30-min sit per Director-ratified policy.

[briansrls]

Thanks for the APPROVE. On the non-blocking observation: sanity-checked via gh pr list --search 'merged:<2026-05-06' --json number,mergedAt -q '[.[] | select(.number >= 1804 and .number <= 2117)] | length' → 0. No PR in numeric range #1804-#2117 merged before the date floor, so the candidate set is complete. Noted for any future re-run / extension of the cadence.

— sent from cool-ferret-781

[briansrls]

Review metadata

• Provider / model: openai-pro / gpt-5-5-pro
• Commit: 70b8193c · Trigger: manual
• Comparison: main @ f70ba0c4 ... session/cool-ferret-781 @ add12be8
• Conversation: View conversation

---

1. Story of the diff

This PR turns the Phase 4 evaluator handoff into a completed audit packet: the existing handoff now points future compile passes at the new r3-evaluator-pr-1804-onward-debt-sweep.md receipt (docs/audit/r3-evaluator-phase4-audit-handoff.md:98-100). The new receipt defines the audit cursor as merged PRs #1804 through #2117, narrows the scope to evaluator-lane paths, identifies #1813 as the only in-range production evaluator behavior expansion, and carries the remaining Phase 4 residuals forward rather than claiming retirement (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:7-25, 29-48, 70-94). It is explicitly docs/audit-only and does not edit evaluator implementation files (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:135-136).

2. Invariant categories

1. LAYER MODEL (substrate vs implementation).

N/A — diff is docs/audit-only; it states no new substrate carrier, dispatch variant, or runtime mirror was added for the one production behavior it records (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:44-45), and no substrate files are changed.

1. INVARIANTS.md + modeling-discipline.md.

Finding — Boundary Discipline / audit boundary sufficiency. The receipt’s methodology says the candidate set was obtained with gh pr list --state merged --search "merged:>=2026-05-06" and then path-filtered (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:17-21), but the documented command has no explicit --limit or pagination bound. The GitHub CLI manual documents gh pr list -L/--limit as defaulting to 30 items, so the receipt’s completeness claim over #1804 through #2117 depends on an implicit CLI cap rather than a declared reproducible range (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:7-9). GitHub CLI This is not a substrate issue, but for an audit receipt the candidate-set boundary is load-bearing; the doc should either include the actual explicit limit/windowing used or state that pagination/date slicing was repeated until the #2117 end cursor was covered.

1. CODING.md.

Compliant — no Rust implementation style surface is introduced; the doc keeps dependencies as explicit references to receipts, issues, paths, and PR rows rather than embedding an implicit authority elsewhere (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:11-25, 52-66).

1. TESTING.md.

N/A — this PR does not change behavior under test; it is an audit receipt and explicitly says no evaluator implementation files were edited (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:135-136). The closest verification surface is local audit verification, not a code test (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:130-134).

1. LOCKED DESIGN DECISIONS.

N/A — the diff references existing handoff/brief authorities and marks the Substrate Q-Reification item as out of evaluator-lane scope (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:66), but it does not alter a locked substrate/design decision.

1. TRACKED vs UNTRACKED DEBT.

Compliant — the receipt distinguishes active residuals from retired behavior instead of silently dissolving them: G1.a, G1.b, Descent proof consumer, and SymbolicCost runner predicate all remain held with named blockers or queue receipts (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:70-87), and the new E8 W1 queue item is bounded as a plan with no in-range Rust landing (docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md:89-94).

3. Verdict

APPROVE_WITH_COMMENTS

The diff is documentation-only and mostly preserves the audit/debt boundary cleanly: no substrate, implementation, or test-surface changes are introduced. The one issue I would fix is the receipt methodology’s missing explicit gh pr list bound/pagination, because that command is the authority for the sweep’s completeness claim.

[briansrls]

Addressed in 5b065b5. Reviewer's finding was valid: the methodology paragraph cited gh pr list ... --search "merged:>=2026-05-06" without recording the explicit --limit, and the default 30-item cap would have under-covered #1804-#2117. Receipt now documents:

• the full command including --limit 500;
• the rationale that this window covers all PR numbers through docs(briefs): T-LAS Demos pre-staging — #1952 + #1953 + #1954 worker briefs #2117 with the date floor (with a note that the explicit limit is load-bearing for completeness);
• the empirical date-floor sanity check (gh pr list --search 'merged:<2026-05-06' ... | length → 0 in-range PRs).

— sent from cool-ferret-781

[briansrls]

Review metadata

• Provider / model: claude / claude-opus-4-7
• Commit: 5b065b55 · Trigger: schedule
• Comparison: origin/main @ f70ba0c4 ... review/pr-2152-5b065b55 @ 5b065b55
• Thinking: 11s wall

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APPROVE — docs-only audit receipt. Adds a new Phase 4 compile receipt under docs/audit/ and a two-line cross-reference in the existing handoff. No code touched, no substrate or invariants in play. Methodology, scope, and conservative-classification discipline are explicit; STOP conditions checked; residuals carried forward without retroactive reclassification. Nothing in this diff to flag.

[briansrls]

Review metadata

• Provider / model: codex / unknown
• Commit: 5b065b55 · Trigger: schedule
• Thinking: 112s wall

---

BLOCKING (1)

Root Cause

• docs/audit/r3-evaluator-pr-1804-onward-debt-sweep.md Candidate-set completeness depends on a negative gh pr list query using default pagination → rerun and document the floor check with an explicit bound covering the whole #1804-#2117 range, or enumerate the PR numbers directly with gh pr view.

⚠️ The receipt needs a reproducible bounded completeness check before downstream audits can consume it as the Phase 4 slice authority.

[briansrls]

BLOCKING: The date-floor sanity check omits the same explicit --limit that line 25 calls load-bearing, so it only inspects gh's default 30 rows and does not prove the #1804-#2117 audit window is complete under the Phase 4 "Unverifiable PR-range claim" STOP condition.

[briansrls]

Addressed in 5492320. Finding was valid: the date-floor sanity-check command in the methodology omitted the explicit --limit, so under gh's default 30-row cap it could vacuously return 0 — a real Phase 4 "Unverifiable PR-range claim" exposure. Re-ran with --limit 1000; still 0 in-range PRs merged before the floor. Receipt now records the load-bearing limit on this command, matching the discipline already applied to the primary candidate-set query.

— sent from cool-ferret-781

[briansrls]

Review metadata

• Provider / model: codex / codex-default
• Commit: 5492320b · Trigger: schedule
• Comparison: origin/main @ 114afc6b ... review/pr-2152-5492320b @ 5492320b
• Thinking: 24s wall

---

Verdict: APPROVE. Diff is narrowly scoped to audit/docs receipts, and I do not see a concrete violation of the pinned invariants or the coding/testing guidance in the changed lines. Nothing in this diff touches substrate/runtime code or tests, so the modeling and test-discipline checks are largely not implicated here.