**Overall Verdict:** Strong Accept — The submission is complete, professionally constructed, objectively gradable, and end-to-end reachable on the declared single-machine environment.

**Completeness Check:**
- Instruction: Complete — Binding physics, protocols, constraints, timing rule, deliverables, and output schemas are explicitly defined.
- Inputs: Complete — The starter includes source stubs, a runnable minimal case, configuration, public sensor data, examples, tests, and documented provenance.
- Toolchain: Complete — OpenFOAM-12, compiler, Python dependencies, supported operating systems, hardware requirements, installation path, and offline execution requirements are specified.
- Reference output: Complete — A full expert output, raw solver evidence, protected truth data, evaluator dependencies, and a valid 100/100 evaluation report are supplied.
- Rubric: Complete — All 100 points have objective rules, tolerances, partial-credit behavior, failure flags, trusted reruns, and time-penalty handling.

**File and Task Reachability:**
Attachment classification: `reachable`. Task classification: `reachable`. I inspected `cylinder_wake_inputs.zip`, `cylinder_wake_calibration_evidence.zip`, and `cylinder_wake_reference.zip`. Their downloaded sizes matched the manifest; all were readable, CRC-clean, unencrypted ZIP containers with 81, 22, and 847 entries respectively, without traversal paths, links, device entries, or excessive expansion. Inspected content included the task and rubric, conventions and schemas, configuration, environment and provenance documentation, public experiment YAML/CSV schemas, source stubs, minimal OpenFOAM case, controller interface, calibration reports and logs, expert deliverables, raw solver records, evaluator source and protocol structure, private truth-record schemas, baseline-state inventory, and installation documentation. No manifest attachment was left unreviewed; large raw time series, binary OpenFOAM state fields, and every source file were inventoried but not examined line by line. Uploaded programs were not executed, and public package availability was not independently rechecked through external search; these are review-method limitations rather than submission defects. The documented path is complete: install the pinned open-source toolchain, complete the starter, run OpenFOAM, produce the specified output tree, then grade it using protected truth, trusted source, solver-integrity checks, and independent reruns. 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

**Recommended Changes:**
The submission provides substantial reproducibility, security, calibration, and negative-control evidence. No material changes are required.