{"submission_id":"58d4099a-324b-43f4-9ddb-961dfecf4615","submission_revision_id":"43db21b4-d4fe-41dd-bb2c-104ef5a3041b","revision_version":1,"submission_status":"under_review","submitted_at":"2026-08-20T05:24:12.685235Z","submitter_name":"Dianzhuo Wang","submitter_email":"johnwang@g.harvard.edu","task":{"status":"submitted","version":1,"extra_fields":{"difficulty_self_test":{"model":"Opus 5.0","harness":"Claude Code"}},"submitted_at":"2026-08-20T05:24:12.685235+00:00","industry_domain":"Biology","task_short_name":"characterize_pore_forming_toxin_barrel_architecture","operating_system":"Linux, MacOS","task_description":"  \"task\": \"pore_assembly.pdb: coordinates of a bacterial pore-forming toxin in its assembled, membrane-inserted state.\\n\\nCharacterise the transmembrane barrel: report the number of subunits in the assembly, the total number of beta-strands that form the protruding barrel, and the first and last residue of the beta-hairpin each subunit contributes to it.\\n\\nReturn EXACTLY:\\n<EVAL_ANSWER>\\n{\\\"n_subunits\\\": <int>, \\\"n_barrel_strands\\\": <int>, \\\"hairpin_first_residue\\\": <int>, \\\"hairpin_last_residue\\\": <int>}\\n</EVAL_ANSWER>\",\n","software_licensing":"Free/Open Source","evaluation_criteria":null,"verification_method":" \"grader\": {\n    \"type\": \"numeric_tolerance\",\n    \"config\": {\n      \"tolerances\": {\n        \"n_subunits\": {\n          \"type\": \"absolute\",\n          \"value\": 0.4\n        },\n        \"n_barrel_strands\": {\n          \"type\": \"absolute\",\n          \"value\": 0.4\n        },\n        \"hairpin_last_residue\": {\n          \"type\": \"absolute\",\n          \"value\": 6\n        },\n        \"hairpin_first_residue\": {\n          \"type\": \"absolute\",\n          \"value\": 6\n        }\n      },\n      \"ground_truth\": {\n        \"n_subunits\": 7,\n        \"n_barrel_strands\": 14,\n        \"hairpin_last_residue\": 286,\n        \"hairpin_first_residue\": 248\n      }\n    }\n  },","software_and_version":"Python","specific_requirements":null,"expected_completion_time":null},"files":[{"file_id":"ac965cba-e0ad-43a7-a0b6-d5497ba38a53","filename":"pore_assembly.pdb","category":"input_materials","content_type":"chemical/x-pdb","size_bytes":1840941},{"file_id":"20d475a2-4e74-44cf-8cf5-6131bd00c7c7","filename":"Screenshot 2026-08-20 at 1.23.29 AM.png","category":"difficulty_self_test_evidence","content_type":"image/png","size_bytes":47669}],"deep_review":{"overall_verdict":"Borderline Accept","review_text":"**Overall Verdict:** Borderline Accept — The usable structure and objective output contract support the task, but the beta-hairpin endpoint definition can reject a defensible structural interpretation.\n\n**Completeness Check:**\n- Instruction: Unclear — “first and last residue” does not specify whether to report the entire extended beta-hairpin or only its visibly protruding barrel segment.\n- Inputs: Complete — the PDB is valid fixed-column ASCII coordinate data containing seven complete, sequence-identical chains, each spanning residues 22–444.\n- Toolchain: Complete — Python and freely obtainable structural-analysis tools provide a viable single-machine workflow; no exact version is material.\n- Reference output: Complete — all four required numeric values and the exact JSON wrapper are defined.\n- Rubric: Unclear — the endpoint tolerances exclude the plausible 241–297 assignment shown by both the coordinates and self-test evidence, while accepting only values close to 248–286.\n\n**File and Task Reachability:**\nThe attachment set is `reachable`. Both `pore_assembly.pdb` and `Screenshot 2026-08-20 at 1.23.29 AM.png` were inspected. The 1,840,941-byte PDB contains 23,303 consecutively numbered atom records across chains A–G, with no missing C-alpha positions, alternate locations, insertion codes, or non-coordinate payloads. The 47,669-byte PNG is a readable 540×334 image with valid container structure and displays self-test results of 7, 14, 297, and 241 against expected values of 7, 14, 286, and 248. No material content remained unreviewed, and no tooling limitation prevented inspection.\n\nThe task is `conditionally_reachable`: an ordinary solver can parse the chains, inspect the pore-axis geometry, identify one two-strand hairpin per subunit, and emit the required JSON for numeric evaluation. However, coordinate geometry and beta-sheet contacts plausibly extend the hairpin to approximately 241–297, whereas the reference treats 248–286 as the barrel-contributing portion. The screenshot is categorized as difficulty self-test evidence and must remain evaluator-only because it exposes the expected values.\n\nLicense 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.\n\n**Special Screening:**\nNone. No affirmative evidence supports an AI-synthetic, public-benchmark, or synthetic-defect-fixture label; public provenance cannot be established from the headerless coordinate file alone.\n\n**Recommended Changes:**\nThe assembly, required output, and core numeric targets are otherwise coherent. Define an operational endpoint criterion, such as the protruding-barrel junction, a membrane-plane cutoff, or a named secondary-structure assignment. Then either provide the necessary solver-visible orientation/annotation that reproducibly yields residues 248–286 or widen the endpoint tolerances to cover the defensible 241–297 interpretation. Keep the self-test screenshot evaluator-only.","reviewed_at":"2026-08-20T05:32:12.846240Z"},"claim":null}