**Overall Verdict:** Accept — The submission is complete, safely reachable, internally consistent, and objectively evaluable; only narrow, nonmaterial evaluator-hardening opportunities remain.

**Completeness Check:**
- Instruction: Complete — The required DXF, BOM, and report changes, units, stack-up bounds, preservation rules, formats, and output locations are explicit and consistent.
- Inputs: Complete — The Rev-A DXF, four-row BOM, ECN, and release specification are readable and contain all facts needed to produce Rev B.
- Toolchain: Complete — Python 3.12 and open-source ezdxf 1.4 on Linux provide a practical single-machine workflow without external services.
- Reference output: Complete — The reference DXF, BOM, and report consistently implement the ECN, including the 31.75 mm conversion and 1.500 mm passing gap.
- Rubric: Complete — The supplied evaluator defines hard gates, weighted partial credit, guarded malformed-input handling, outline comparison, and extensive positive and negative test evidence.

**File and Task Reachability:**
The attachment set is `reachable`, and the end-to-end task is `reachable`. Both declared ZIP files matched their manifest sizes, were unencrypted, passed container integrity checks, contained only regular traversal-free members, and had modest expansion sizes. All content was inspected: `05_upload_inputs.zip` contained `bom_rev_a.csv`, `drawing_rev_a.dxf`, `ecn_2214.txt`, and `spec_sheet.md`; `05_upload_reference.zip` contained the three reference outputs, both evaluator source files, all three naive-attempt files, `task_card.json`, and the three build/evaluation logs. No content was left unreviewed.

The CSV and text files use readable ASCII or UTF-8 with valid four-column BOM schemas. The DXFs identify as R2010, declare millimeters, contain the required layer tables and expected text entities, and preserve the seven raw OUTLINE geometry entities between revisions. The reviewer environment lacked Python, so the DXFs could not be independently audited through ezdxf; non-executing group-code inspection was completed, while the supplied logs report clean ezdxf audits and comprehensive evaluator results. Solver-visible inputs are separated from reference and evaluator evidence. A solver can edit the Rev-A drawing and BOM using the declared toolchain, generate the three outputs, and receive deterministic gate and weighted-score evaluation.

License keys, accounts, tokens, and other credentials are not required from the contributor. Confidential, proprietary, or internal material may be evaluated as submitted evidence without requiring additional disclosure.

**Special Screening:**
None — no affirmative evidence supports a screening label. Public identifiability was not independently searched because approved search capability was unavailable.

**Recommended Changes:**
The submission includes coherent artifacts, a correct reference release, and broad negative-test coverage. No material changes are required. Optional evaluator hardening would bind the nonempty description check to the same Rev-B row carrying the required ECN and date, and enforce the documented two-decimal format in report dimension rows.