{"record":{"id":"ccd9244cd7e6300f","repo":"datawhalechina/hello-agents","slug":"hunter-agent-str-e","errorCode":null,"errorMessage":"Hunter Agent执行失败: {str(e)}","messagePattern":"Hunter Agent执行失败: (.+?)","errorType":"exception","errorClass":"AgentException","httpStatus":500,"severity":"error","filePath":"Co-creation-projects/Apricity-InnocoreAI/agents/hunter.py","lineNumber":88,"sourceCode":"                    if downloaded_paper:\n                        downloaded_papers.append(downloaded_paper)\n                except Exception as e:\n                    self._add_to_history(f\"下载论文失败 {paper.get('title', 'Unknown')}: {str(e)}\")\n            \n            self.set_state(\"completed\")\n            \n            return {\n                \"status\": \"success\",\n                \"total_found\": len(all_papers),\n                \"unique_papers\": len(unique_papers),\n                \"filtered_papers\": len(filtered_papers),\n                \"downloaded_papers\": len(downloaded_papers),\n                \"papers\": downloaded_papers\n            }\n            \n        except Exception as e:\n            self.set_state(\"error\")\n            raise AgentException(f\"Hunter Agent执行失败: {str(e)}\")\n    \n    def get_required_fields(self) -> List[str]:\n        \"\"\"获取必需的输入字段\"\"\"\n        return [\"keywords\"]\n    \n    async def _search_papers_from_arxiv(self, keywords: List[str], max_papers: int, days_back: int) -> List[Dict]:\n        \"\"\"从ArXiv搜索论文\"\"\"\n        papers = []\n        \n        # 构建查询字符串\n        query_parts = []\n        for keyword in keywords:\n            query_parts.append(f'all:\"{keyword}\"')\n        query = \" OR \".join(query_parts)\n        \n        # 添加时间过滤\n        date_filter = \"\"\n        if days_back > 0:","sourceCodeStart":70,"sourceCodeEnd":106,"githubUrl":"https://github.com/datawhalechina/hello-agents/blob/606a07d341a47be773fab7f4b71177f53f96b2c3/Co-creation-projects/Apricity-InnocoreAI/agents/hunter.py#L70-L106","documentation":"Catch-all in HunterAgent.run: failures from the arXiv/IEEE search helpers, filtering, or PDF download steps are re-wrapped with the 'Hunter Agent执行失败:' prefix after setting agent state to 'error'. The original message is preserved, so typical suffixes are 'ArXiv API请求失败: 403' (error 55), 'IEEE API请求失败: 401' (error 56), or download filesystem errors.","triggerScenarios":"run({'keywords':[...]}) where arXiv returns non-200 (rate limit / block), the IEEE key is missing so config.ieee_api_key is '' and the API rejects, or the download directory is unwritable when saving PDFs.","commonSituations":"Missing IEEE_API_KEY in .env but IEEE included in sources; arXiv throttling burst searches from one IP; PDF save path not created at startup; proxy required but unset in the container.","solutions":["Read the suffix — it names the failing source and HTTP status; fix that (key, quota, path) rather than the wrapper.","Set the IEEE key in config or exclude 'ieee' from search sources; arXiv alone needs no key.","Pre-create the PDF download directory and verify write permissions.","Space out arXiv calls (their guideline is ~1 request/3s) or cache responses.","Re-raise typed exceptions unchanged (except ExternalAPIException: raise) for cleaner upstream handling."],"exampleFix":"# before\nexcept Exception as e:\n    self.set_state(\"error\")\n    raise AgentException(f\"Hunter Agent执行失败: {str(e)}\")\n\n# after\nexcept ExternalAPIException:\n    self.set_state(\"error\")\n    raise\nexcept Exception as e:\n    self.set_state(\"error\")\n    raise AgentException(f\"Hunter Agent执行失败: {e}\") from e","handlingStrategy":"try-catch","validationCode":"# Pre-flight the hunter's external dependencies\nrequired_paths = [hunter.download_dir]\nfor p in required_paths:\n    Path(p).mkdir(parents=True, exist_ok=True)\nif \"ieee\" in sources and not config.ieee_api_key:\n    sources.remove(\"ieee\")  # skip a source that is guaranteed to 401","typeGuard":null,"tryCatchPattern":"try:\n    result = await hunter.run({\"keywords\": kws})\nexcept AgentException as e:\n    root = str(e).replace(\"Hunter Agent执行失败: \", \"\")\n    if \"ArXiv\" in root or \"IEEE\" in root:\n        result = await hunter.run({\"keywords\": kws}, sources=[\"arxiv\"])  # degrade to keyless source\n    else:\n        raise","preventionTips":["Skip configured-but-keyless sources before running.","Ensure download directories exist and are writable at startup.","Space out arXiv calls or cache responses to stay under throttling limits."],"tags":["python","agent","error-wrapping","web-scraping","network"],"backgroundTag":null,"analyzedSha":"606a07d341a47be773fab7f4b71177f53f96b2c3","analyzedAt":"2026-08-14T22:57:27.446Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}