{"abstract":"Dependent required condition is triggered by absent key.","category":"Tool call schema validation","checks":6,"contract":"If trigger is present, every dependency key must also be present; without trigger the object is valid.","contract_signature":"obj, trigger, dependencies","evaluation_group":"w3-schema-dependent-required-fields","failed_approach":"Requiring dependencies unconditionally rejects valid objects without the trigger.","family":"w3-tool-call-schema-validation-dependent-required-fields","id":"FA-99831","implementations":{"attempt":{"sha256":"eabb185ebd2d521f5e22104c552183205972e68cc77ec8f36b1648a10750e3ec","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(obj, trigger, dependencies):\n    return all(k in obj for k in dependencies)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('trigger with dependencies',solve({'a':1,'b':0},'a',['b']),True)\ncheck('trigger missing dependency',solve({'a':1},'a',['b']),False)\ncheck('no trigger',solve({'b':1},'a',['b']),True)\ncheck('no trigger no deps',solve({},'a',['b']),True)\ncheck('trigger empty deps',solve({'a':None},'a',[]),True)\ncheck('one missing among many',solve({'a':1,'b':2},'a',['b','c']),False)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"6788fef5185a40c8bc3e9d759f04bfe33cb0378b04014e15aec10dec55e1bd94","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(obj, trigger, dependencies):\n    return all(k in obj for k in dependencies) if trigger not in obj else True\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('trigger with dependencies',solve({'a':1,'b':0},'a',['b']),True)\ncheck('trigger missing dependency',solve({'a':1},'a',['b']),False)\ncheck('no trigger',solve({'b':1},'a',['b']),True)\ncheck('no trigger no deps',solve({},'a',['b']),True)\ncheck('trigger empty deps',solve({'a':None},'a',[]),True)\ncheck('one missing among many',solve({'a':1,'b':2},'a',['b','c']),False)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"Self-contained toy JSON-like schema contract over in-memory Python values; no compatibility with a production schema standard or callable binding is claimed. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"w3-tool-call-schema-validation-dependent-required-fields","generated_at":"2026-09-30T16:48:28.523289+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Tool argument validation prevents malformed structured payloads from entering a deterministic downstream operation.","root_cause":"The dependency rule is applied in the reverse direction.","sha256":"f84caab9884e596043cae834375917790170acb9e102a2fa0020bf1c165a08cf","title":"Dependent required condition is triggered by absent key · case 01","variant":1,"variant_policy":"The same explicitly authored fixtures repeat across all five numbered records; runtime N is unused. These records share one mechanism and must remain together in evaluation splits.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":26.999,"exit_code":1,"observations":[{"actual":true,"check":"trigger with dependencies","expected":true,"passed":true},{"actual":false,"check":"trigger missing dependency","expected":false,"passed":true},{"actual":true,"check":"no trigger","expected":true,"passed":true},{"actual":false,"check":"no trigger no deps","expected":true,"passed":false},{"actual":true,"check":"trigger empty deps","expected":true,"passed":true},{"actual":false,"check":"one missing among many","expected":false,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"trigger with dependencies\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"trigger missing dependency\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"no trigger\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"no trigger no deps\", \"actual\": false, \"expected\": true, \"passed\": false}, {\"check\": \"trigger empty deps\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"one missing among many\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":27.64,"exit_code":1,"observations":[{"actual":true,"check":"trigger with dependencies","expected":true,"passed":true},{"actual":true,"check":"trigger missing dependency","expected":false,"passed":false},{"actual":true,"check":"no trigger","expected":true,"passed":true},{"actual":false,"check":"no trigger no deps","expected":true,"passed":false},{"actual":true,"check":"trigger empty deps","expected":true,"passed":true},{"actual":true,"check":"one missing among many","expected":false,"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"trigger with dependencies\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"trigger missing dependency\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"no trigger\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"no trigger no deps\", \"actual\": false, \"expected\": true, \"passed\": false}, {\"check\": \"trigger empty deps\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"one missing among many\", \"actual\": true, \"expected\": false, \"passed\": false}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}