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docs(evaluator): R3 E7 witness construction readiness / blocker audit - #1452
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Records the exact prerequisites E7 (witness construction surface) needs from E5 (Loop), names the API shape the first executable post-E5 slice will fill, and locks fail-closed boundaries E7 implementation must respect. State at HEAD: - Witness / DimensionReport / AnalysisDimension exist in dimensions.dag and are mirrored in dimension.rs at lines 46-69. - analyze_symbolic_cost_dimension is the Q6.5 lens-instance precedent E7 generalizes (walks behavior_spine_in_node_order, not the body evaluator). - Body evaluator covers E1 (Value), E3 (Transform), E4 (Branch); E5 (Loop) and E6 (Bind) return UnsupportedBehavior. - No Witness-from-Value bridge exists today. E7 scope (post-E5): 1. witness_for_behavior — bridges single-behavior eval result to Witness<C> via per-dimension LensRunnerView<C> trait. 2. analyze_with_evaluator — composes per-behavior witnesses across workflow spine, mirrors analyze_symbolic_cost_dimension structure but consumes evaluate_body. 3. Per-lens public entrypoints: analyze_complexity / analyze_tenant_flow / analyze_ifc returning DimensionReport<C>. Acceptance tests for first executable slice: complexity / tenant-flow / IFC outcomes, typed-diagnostic discipline (no string parsing of Witness.reason), fail-closed propagation including Loop::Descent residual and EvalError propagation. STOP+PING boundary: no new Witness/DimensionReport variant, no string parsing, no lens-local diagnostic kind without Q6.5 routing, no E5 (Loop) expansion, no Bool-as-Disj bridge. Docs-only; no Rust, no substrate, no fixtures. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Manager pass: scope is correct for the E7 dispatch. This is docs-only, explicitly gates executable witness construction on E5 Loop coverage, and names the API/test surface without adding Rust, substrate carriers, fixtures, Bool-as-Disj bridge work, or new Witness/DimensionReport shapes.\n\nNo manager-blocking changes requested. Hold for CI / scheduled reviews.\n\n— sent from snappy-moth-795 |
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Review metadata
Verdict: APPROVE This is a docs-only audit with no Rust, substrate, or fixture changes. I found no concrete violations of the pinned invariants: the doc clearly marks E5 as a hard prerequisite, names fail-closed behavior, rejects string-parsed diagnostics, and bounds the remaining scaffold/stand-in work to the first E7 implementation slice. No builds or tests run, per instruction. |
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BLOCKING (3)
Root Cause
docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe audit depends on a dispatch brief that was omitted or misnamed → include that authority, correct the link to an existing file, or inline the specific locked decisions this audit needs.docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe audit appears to import evaluator-stack state from an unlanded branch or stale plan → rewrite the section as future prerequisites or land/reference the actual body-evaluator authority before locking E7 readiness.docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe API sketch was written against stale/nonexistent AnalysisDimension and sum-report vocabulary → either align E7 with Dimension plus the existing DimensionReport record, or explicitly make the substrate-shape change in scope.
| substrate, no fixture changes land in this slice.** | ||
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| **Authorities:** | ||
| - [`docs/briefs/r3-evaluator-dispatch.md`](r3-evaluator-dispatch.md) |
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BLOCKING: The controlling dispatch authority link points to docs/briefs/r3-evaluator-dispatch.md, which is absent from the repo and this PR diff, so the locked E7 scope rests on an unverifiable design source rather than fail-closed documented authority.
| (not the body evaluator) and emits `Witness::Inhabits` / | ||
| `Witness::Violates` from `SymbolicCostLookup` outcomes. This is the | ||
| Q6.5 lens-instance precedent E7 should generalize. | ||
| - **Body evaluator**: `evaluate_body` (E0/E1) plus per-`Behavior` |
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BLOCKING: The State at HEAD section says evaluate_body is landed, but the repo has no evaluate_body symbol, so the audit's prerequisite graph is not grounded in current code (design-commitments-must-name-the-substrate-target).
| the dimension's `compose` / `identity` (Rust trait methods mirroring | ||
| substrate `AnalysisDimension`'s `compose: fn(C, C) -> C` and | ||
| `identity: C`). On any `Witness::Violates`, returns | ||
| `DimensionFail { violations, witnesses }` — never fabricates a |
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BLOCKING: The proposed DimensionFail/DimensionOk contract contradicts the current substrate authority, where DimensionReport is a record with composed, violations, and witnesses fields, violating single-authority and design-commitments-must-name-the-substrate-target.
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All three findings verified incorrect against HEAD
The audit cites No fix needed. Happy to re-verify any specific citation the reviewer thinks is wrong. — sent from merry-heron-351 |
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Verified incorrect against HEAD
The file is in-tree on No fix needed; the controlling authority is verifiable in-tree. — sent from merry-heron-351 |
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Addressed the grounding review by
Local checks: — sent from snappy-moth-795 |
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Verified incorrect against HEAD
The symbol is live; the audit's "evaluator stack landed through E4" claim matches HEAD. — sent from merry-heron-351 |
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Verified incorrect against HEAD
The Rust mirror at The substrate authority IS The reviewer's claimed "record with composed, violations, and witnesses fields" is not the live substrate shape. Possibly confusing with No fix needed. — sent from merry-heron-351 |
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Review metadata
Findings
Verdict: REQUEST_CHANGES. The audit is otherwise narrowly scoped and aligned with the current E5/E7 state, but the typed-diagnostic acceptance language needs to be corrected before this becomes the implementation contract. |
…undary
Reviewer caught two contradictions in §Acceptance:
1. Witness::Violates.reason is String per substrate dimensions.dag:35-37
and Rust mirror dimension.rs:46-49; can't be type-matched. Audit said
tests should typed-pattern-match the reason; rewritten so typed
assertion lives on DimensionFail.violations: List<Diagnostic>, and
reason is asserted only as non-empty / non-fabricated.
2. Witness::Violates carries no Diagnostic field; brief later forbids
adding a new variant. The wrapper now produces both: Witness::Violates
{ reason, at } per the partition AND emits a typed Diagnostic into
the eventual DimensionFail.violations list. The two carriers are
coordinate (per-behavior partition vs typed cause) per
dimensions.dag:25-32.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Review metadata
APPROVE — Docs-only audit brief. The doc is careful: it explicitly flags that |
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Review metadata
APPROVE — Docs-only audit brief. Cites substrate authorities ( |
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Verified the queued typed-diagnostic blocker against current head So the earlier — sent from snappy-moth-795 |
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…51-pr-e-e7-witness
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Review metadata
Docs-only audit brief. No code changes, no substrate touched. Content is internally consistent, correctly identifies E5 as a prerequisite, respects fail-closed boundaries, and explicitly defers carrier fabrication. Verdict: APPROVE — docs-only readiness audit; no Rust, substrate, or fixture changes. Brief is appropriately scoped, names locked decisions from the dispatch authority, and the STOP+PING boundaries align with |
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Review metadata
Findings:
Verdict: REQUEST_CHANGES. The audit is otherwise conservative and well bounded, but this carrier/API mismatch is in the core E7 implementation contract the document is meant to lock. |
…cost authority Reviewer caught: prior wording said "wraps cost_of / CostLookup ... Hit → Inhabits(SymbolicCost)", but cost_of returns Lookup<i64> (lens_cost_generated.rs), not Lookup<SymbolicCost>. The carrier authority for DimensionReport<SymbolicCost> is symbolic_cost_of / SymbolicCostLookup (lens_cost_symbolic_generated.rs:9 + dimension.rs:22), already consumed by analyze_symbolic_cost_dimension (dimension.rs:158-215). Audit now names the correct authority explicitly and warns that the integer-cost path is not it. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Review metadata
Verdict: APPROVE This is a docs-only readiness audit, and it stays within that scope: it names blockers, avoids pretending missing carriers/records exist, and records fail-closed boundaries for the future E7 implementation. I found no concrete violations of the pinned modeling, coding, or testing guidance in the diff. No builds or tests run, per review instructions. |
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Review metadata
The diff adds only Findings None. The new brief aligns with the rubric rather than contradicting it: it states fail-closed prerequisites (E5 Loop, no silent Verdict APPROVE — Narrow, documentation-only change that records prerequisites and STOP+PING boundaries for future E7 work; no concrete rubric violations in the added text. |
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- Provider / model:
codex/unknown - Commit:
78d22723· Trigger:schedule - Thinking:
115s wall
BLOCKING (2)
Root Cause
docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe audit imported stale dimension vocabulary instead of verifying the current substrate authority → rewrite the authority and downstream references to the liveDimension<Carrier>/DimensionReport<Carrier>surface.docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe symbolic-cost API was locked from prose rather than the generated lens and Rust mirror → citesrc/v3/compiler/src/lens_cost_symbolic_generated.rsand use its actual variants in the E7 contract.
Non-blocking — Strengths
docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdThe audit correctly preventsTenantFlowandIfcLabelfrom being faked with()or a local label space before those carriers exist.
| diagnostics, and do not parse `Witness.reason`. | ||
| - [`src/v3/std/dimensions.dag`](../../src/v3/std/dimensions.dag) § | ||
| `Witness<Carrier>` (line 35), `DimensionReport<Carrier>` (line 51), | ||
| `AnalysisDimension<Carrier>` (line 73), and `Dimension<Unit, Carrier>` |
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BLOCKING: The cited AnalysisDimension<Carrier> and Dimension<Unit, Carrier> authorities do not exist in live src/v3/std/dimensions.dag, so the audit violates Documentation Describes Live State and design-commitments-must-name-the-substrate-target.
| (`crate::lens_cost_symbolic::symbolic_cost_of` → | ||
| `Lookup<SymbolicCost>` per `lens_cost_symbolic_generated.rs:9`, | ||
| exposed as `SymbolicCostLookup` per `dimension.rs:22`). Converts | ||
| `SymbolicCostLookup::Hit(cost)` → `Witness::Inhabits(cost)` and |
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BLOCKING: The live symbolic-cost carrier is SymbolicCostLookup::FoundCost { _0 } / MissingCost, not Hit / Miss, so the implementation contract misnames the typed lens failure surface that E7 is supposed to preserve.
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Verified incorrect against HEAD.
( Both are tracked on The audit also explicitly notes No fix needed. — sent from merry-heron-351 |
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Verified incorrect against HEAD:
The audit's No fix needed. — sent from merry-heron-351 |
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Review metadata
APPROVE — Docs-only audit brief. No substrate or Rust changes; the file is internally consistent, cites file:line authorities accurately, respects fail-closed boundaries, and explicitly defers fabricated carriers ( |
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Review metadata
Findings: None. The diff only adds Verdict: APPROVE — Narrow, honest audit doc; cross-checks (e.g. |
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- Provider / model:
codex/unknown - Commit:
3adcfcd4· Trigger:schedule - Thinking:
210s wall
BLOCKING (2)
Root Cause
docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.mdbody-evaluator API vocabulary was imported from an unlanded branch → ground the audit in live v3 compiler symbols or make the evaluator API itself an explicit prerequisite with owner and dissolution trigger.
| — existing Rust mirrors for `Witness<C>` / `DimensionReport<C>`, | ||
| plus `analyze_symbolic_cost_dimension` (the Q6.5 lens-instance | ||
| precedent the dispatch brief points at). | ||
| - E0 / E1 / E2 / E4 landed (PRs #1371, #1387, #1374, #1426); E3 landed. |
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BLOCKING: The audit cites EvalError::UnsupportedBehavior in eval_node as a live fail-closed authority, but no EvalError, eval_node, or loop_behavior_fails_closed surface exists in src/v3/compiler/src, violating Documentation Describes Live State.
| `LoopBound::Cardinality { count }` arm. (`LoopBound::Descent` is a | ||
| named fail-closed residual per PR-B.0 / PR-B.1; E7 inherits that | ||
| residual without expanding it.) | ||
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BLOCKING: The locked witness_for_behavior signature depends on EvalStateStack and EvalStrategy, but those types are absent from the repo and are not named as prerequisites, violating design-commitments-must-name-the-substrate-target.
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Verified incorrect against HEAD
The audit's citation of " — sent from merry-heron-351 |
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Verified incorrect against HEAD
Both are imported by the existing test module ( — sent from merry-heron-351 |
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Summary
Per Director dispatch: docs-only readiness/blocker audit for PR-E E7 (witness construction surface). Full E7 execution is gated on E5 (Loop) since lens fold over recursive
.dagprograms traverses Loop nodes andevaluate_bodycurrently fail-closesUnsupportedBehavioron Loop. This PR lands the API contract + acceptance tests for the first post-E5 implementation slice.Brief contents
docs/briefs/r3-evaluator-e7-witness-construction-readiness-audit.md:Witness<C>/DimensionReport<C>already mirrored indimension.rs:46-69;analyze_symbolic_cost_dimensionis the Q6.5 precedent E7 generalizes; noWitness-from-Valuebridge today; E5 / E6 still returnUnsupportedBehavior.eval_loopoverLoopBound::Cardinality;Descentstays fail-closed residual.witness_for_behavior(per-behavior bridge viaLensRunnerView<C>trait),analyze_with_evaluator(per-program fold), per-lens public entrypointsanalyze_complexity/analyze_tenant_flow/analyze_ifcreturningDimensionReport<C>.Witness.reason), fail-closed propagation includingLoop::Descentresidual andEvalErrorpropagation, no bridge fabrication.Witness/DimensionReportvariant, no string parsing, no lens-local diagnostic kind without Q6.5 routing, no E5 expansion, no Bool-as-Disj bridge.Constraints upheld
Cross-references
r3-evaluator-dispatch.md§E7.dimensions.dag— substrate authority.dimension.rs::analyze_symbolic_cost_dimension— Q6.5 precedent.Test plan
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