{"record":{"id":"98b576920da05b75","repo":"openai/codex","slug":"write-stdin-dispatch-payload-used-unsupported-p","errorCode":null,"errorMessage":"write_stdin dispatch payload used unsupported {} payload","messagePattern":"write_stdin dispatch payload used unsupported (.+?) payload","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"codex-rs/rollout-trace/src/reducer/tool/terminal.rs","lineNumber":399,"sourceCode":"            max_output_tokens: None,\n        },\n    };\n    ParsedTerminalRequest {\n        terminal_id,\n        request,\n    }\n}\n\nfn parse_dispatch_terminal_request(value: JsonValue) -> Result<ParsedTerminalRequest> {\n    let payload: DispatchedToolTraceRequestPayload = serde_json::from_value(value)?;\n    if payload.tool_name != \"write_stdin\" {\n        bail!(\n            \"dispatch terminal request is for {}, not write_stdin\",\n            payload.tool_name\n        );\n    }\n    if payload.payload.kind != \"function\" {\n        bail!(\n            \"write_stdin dispatch payload used unsupported {} payload\",\n            payload.payload.kind\n        );\n    }\n    let arguments = payload\n        .payload\n        .arguments\n        .context(\"write_stdin dispatch payload omitted function arguments\")?;\n    let args: DispatchedWriteStdinArgs = serde_json::from_str(&arguments)\n        .context(\"parse write_stdin dispatch function arguments\")?;\n    let terminal_id = terminal_id_from_json(&args.session_id)\n        .context(\"write_stdin dispatch payload omitted session_id\")?;\n\n    Ok(ParsedTerminalRequest {\n        terminal_id: Some(terminal_id),\n        request: TerminalRequest::WriteStdin {\n            stdin: args.chars,\n            yield_time_ms: args.yield_time_ms,","sourceCodeStart":381,"sourceCodeEnd":417,"githubUrl":"https://github.com/openai/codex/blob/339751715c64496cb86246bfb3935f40e309dd3d/codex-rs/rollout-trace/src/reducer/tool/terminal.rs#L381-L417","documentation":"Error \"write_stdin dispatch payload used unsupported {} payload\" thrown in openai/codex.","triggerScenarios":"Thrown at codex-rs/rollout-trace/src/reducer/tool/terminal.rs:399 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"339751715c64496cb86246bfb3935f40e309dd3d","analyzedAt":"2026-08-25T05:35:09.876Z","schemaVersion":2},"datasetVersion":"2026-08-25T06:17:31.827Z"}