{"record":{"id":"2762bb92e1c0ecf3","repo":"tinyhumansai/openhuman","slug":"missing-required-parameter-model","errorCode":null,"errorMessage":"Missing required parameter: model","messagePattern":"Missing required parameter: model","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/openhuman/search/tools/parallel.rs","lineNumber":533,"sourceCode":"                    \"items\": {\n                        \"type\": \"object\",\n                        \"properties\": {\n                            \"role\": { \"type\": \"string\", \"enum\": [\"system\", \"user\", \"assistant\"] },\n                            \"content\": { \"type\": \"string\" }\n                        },\n                        \"required\": [\"role\", \"content\"]\n                    }\n                }\n            },\n            \"required\": [\"model\", \"messages\"]\n        })\n    }\n\n    async fn execute(&self, args: serde_json::Value) -> anyhow::Result<ToolResult> {\n        let model = args\n            .get(\"model\")\n            .and_then(|v| v.as_str())\n            .ok_or_else(|| anyhow::anyhow!(\"Missing required parameter: model\"))?;\n        let messages = args\n            .get(\"messages\")\n            .and_then(|v| v.as_array())\n            .filter(|a| !a.is_empty())\n            .ok_or_else(|| anyhow::anyhow!(\"messages must be a non-empty array\"))?;\n\n        tracing::info!(\n            \"[parallel_chat] model={} messages={}\",\n            model,\n            messages.len()\n        );\n\n        let body = json!({ \"model\": model, \"messages\": messages });\n        match self\n            .client\n            .post::<ChatResponse>(\"/agent-integrations/parallel/chat\", &body)\n            .await\n        {","sourceCodeStart":515,"sourceCodeEnd":551,"githubUrl":"https://github.com/tinyhumansai/openhuman/blob/749120085864ce16e0f273c7b86fac7740b39c5b/src/openhuman/search/tools/parallel.rs#L515-L551","documentation":"Argument-validation guard in the Parallel LLM/chat tool's execute: 'model' is absent or not a string (ok_or_else on and_then(as_str)). The schema's required list is [model, messages]. Purely a malformed-tool-call guard — the error goes back to the calling model as a retryable tool error, no API request is made.","triggerScenarios":"Thrown at src/openhuman/search/tools/parallel.rs:533 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Retry including a 'model' string naming one of the Parallel-supported models.","Check available model identifiers documented in the tool schema.","If the model name is dynamic, ensure it is serialized as a string, not an object."],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"749120085864ce16e0f273c7b86fac7740b39c5b","analyzedAt":"2026-08-17T21:21:45.363Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}