{"record":{"id":"6fc669693c63cbb3","repo":"datawhalechina/hello-agents","slug":"str-e-6fc669","errorCode":null,"errorMessage":"str(e)","messagePattern":"str\\(e\\)","errorType":"http","errorClass":"HTTPException","httpStatus":500,"severity":"warning","filePath":"Co-creation-projects/Apricity-InnocoreAI/api/routes/writing.py","lineNumber":155,"sourceCode":"        logger.error(f\"写作助手处理失败: {str(e)}\")\n        raise HTTPException(status_code=500, detail=f\"处理失败: {str(e)}\")\n\n@router.post(\"/explain\", response_model=Dict[str, Any])\nasync def explain_concept(request: ExplainRequest):\n    \"\"\"解释复杂概念\"\"\"\n    try:\n        # 模拟概念解释\n        return {\n            \"success\": True,\n            \"concept\": request.concept,\n            \"explanation\": f\"[Detailed explanation of {request.concept} in accessible terms while maintaining technical accuracy]\",\n            \"examples\": [\"Example 1\", \"Example 2\"],\n            \"timestamp\": \"2024-01-15T10:30:00Z\"\n        }\n        \n    except Exception as e:\n        logger.error(f\"概念解释失败: {str(e)}\")\n        raise HTTPException(status_code=500, detail=str(e))\n\n@router.post(\"/polish\", response_model=Dict[str, Any])\nasync def polish_text(request: PolishRequest):\n    \"\"\"润色文本\"\"\"\n    try:\n        # 模拟文本润色\n        return {\n            \"success\": True,\n            \"original\": request.text,\n            \"improved\": f\"Based on {request.target_style} writing standards, the text can be improved: [Enhanced version]\",\n            \"suggestions\": [\"Use more precise terminology\", \"Improve sentence structure\"],\n            \"timestamp\": \"2024-01-15T10:30:00Z\"\n        }\n        \n    except Exception as e:\n        logger.error(f\"文本润色失败: {str(e)}\")\n        raise HTTPException(status_code=500, detail=str(e))\n","sourceCodeStart":137,"sourceCodeEnd":173,"githubUrl":"https://github.com/datawhalechina/hello-agents/blob/606a07d341a47be773fab7f4b71177f53f96b2c3/Co-creation-projects/Apricity-InnocoreAI/api/routes/writing.py#L137-L173","documentation":"A catch-all 500 from POST /writing/explain in api/routes/writing.py. The endpoint body only returns a hardcoded mock dict (explanation is a placeholder template string), so the except branch is unreachable with the current code; the literal timestamp '2024-01-15T10:30:00Z' and fake examples confirm this is stubbed functionality. If triggered after someone adds real logic, it indicates that implementation raised unexpectedly.","triggerScenarios":"With the shipped mock body: essentially never (dict literals with f-strings on safe inputs do not raise). After replacing the mock with a real LLM call: any client/network/quota error, or logger being None. Triggered by any POST to /writing/explain once real code is added.","commonSituations":"Developers wire a real explainer into the endpoint and hit OpenAI auth/timeout errors; reviewers flag the endpoint during audits because it returns fabricated data; tests asserting real explanations fail against the mock.","solutions":["Recognize this endpoint is a stub — if you need real explanations, implement them and add specific exception handling","When implementing, catch the LLM client's specific exceptions and return 502/503 rather than 500","Replace detail=str(e) with a static message; log full traceback with logger.exception","Remove the try/except while it is still a pure mock, so dead code does not imply real error handling"],"exampleFix":"# before\nexcept Exception as e:\n    logger.error(f\"概念解释失败: {str(e)}\")\n    raise HTTPException(status_code=500, detail=str(e))\n\n# after (real implementation)\nresult = await llm.explain(request.concept)  # specific errors handled by caller\nexcept LLMError:\n    logger.exception(\"概念解释失败\")\n    raise HTTPException(status_code=502, detail=\"概念解释服务不可用\")","handlingStrategy":"validation","validationCode":"// Endpoint is a stub; validate expectations client-side instead of relying on it\nconst resp = await fetch('/writing/explain', ...);\nconst data = await resp.json();\nif (data.explanation?.startsWith('[')) console.warn('explain endpoint returned mock data');","typeGuard":null,"tryCatchPattern":"try:\n    data = client.post('/writing/explain', json={'concept': c})\nexcept HTTPError:\n    # stub cannot fail; a 500 means real logic was added — check server logs\n    raise","preventionTips":["Do not build features on this endpoint until it has a real implementation — responses are placeholders","Feature-flag mock endpoints so clients can detect and skip them","If you implement it, add tests for the failure path before shipping"],"tags":["mock-data","dead-code","http-500","error-handling","fastapi"],"backgroundTag":null,"analyzedSha":"606a07d341a47be773fab7f4b71177f53f96b2c3","analyzedAt":"2026-08-14T22:57:27.446Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}