{"record":{"id":"9ae359cb1b38e320","repo":"Hmbown/CodeWhale","slug":"handing-delegated-coordination-between-engines-in","errorCode":null,"errorMessage":"handing delegated coordination between engines in this process for {}: {error}","messagePattern":"handing delegated coordination between engines in this process for (.+?): (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/tui/src/tools/subagent/mod.rs","lineNumber":3174,"sourceCode":"                    let _ = release_rx.recv();\n                }\n                Err(error) => {\n                    let _ = ready_tx.send(Err(error.to_string()));\n                }\n            }\n        });\n        match ready_rx.recv_timeout(Duration::from_secs(5)) {\n            Ok(Ok(())) => Ok(Self {\n                release: Some(release_tx),\n                thread: Some(thread),\n            }),\n            Ok(Err(error)) => {\n                let _ = thread.join();\n                let holder_pid = std::fs::read_to_string(&lock_path)\n                    .ok()\n                    .and_then(|contents| contents.trim().parse::<u32>().ok());\n                if holder_pid == Some(std::process::id()) {\n                    Err(anyhow!(\n                        \"{COORDINATION_SAME_PROCESS_HANDOVER} for {}: {error}\",\n                        state_root.display()\n                    ))\n                } else {\n                    Err(anyhow!(\n                        \"another Codewhale process{} owns delegated coordination for {}: {error}\",\n                        holder_pid\n                            .map(|pid| format!(\" (pid {pid})\"))\n                            .unwrap_or_default(),\n                        state_root.display()\n                    ))\n                }\n            }\n            Err(error) => {\n                drop(release_tx);\n                let _ = thread.join();\n                Err(anyhow!(\n                    \"{COORDINATION_LOCK_TIMEOUT_MARKER} for {}: {error}\",","sourceCodeStart":3156,"sourceCodeEnd":3192,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/0c42157ee52f9d55af2b506d71b46249910f77d3/crates/tui/src/tools/subagent/mod.rs#L3156-L3192","documentation":"Same-process handover branch of the delegated coordination lock: the background thread that tried to acquire the lock failed, the ready channel returned an error string, and the lock file's recorded pid equals the current process id. The COORDINATION_SAME_PROCESS_HANDOVER sentinel marks a re-entrant acquisition being handed between engines inside one process for the given state_root.","triggerScenarios":"Thrown at crates/tui/src/tools/subagent/mod.rs:3174 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Verify the earlier engine in this process released its coordination lease (check the release channel path)","Ensure only one engine at a time holds delegated coordination for the state_root","Restart the process if a stale same-process lock file (with this pid) remains"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"0c42157ee52f9d55af2b506d71b46249910f77d3","analyzedAt":"2026-08-20T21:50:45.477Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}