{"record":{"id":"02284af926f3f26a","repo":"Hmbown/CodeWhale","slug":"runtime-chat-binding-state-contains-duplicate-thread","errorCode":null,"errorMessage":"Runtime Chat binding state contains duplicate thread authority","messagePattern":"Runtime Chat binding state contains duplicate thread authority","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/tui/src/runtime_chat_relay.rs","lineNumber":231,"sourceCode":"        let mut virtual_threads = HashSet::new();\n        let mut native_threads = HashSet::new();\n        for binding in &self.bindings {\n            validate_relay_id(&binding.run_id, \"run id\")?;\n            validate_relay_id(&binding.runtime_binding_id, \"binding id\")?;\n            validate_virtual_thread_id(&binding.virtual_thread_id)?;\n            validate_native_record_id(&binding.native_thread_id, \"native thread id\")?;\n            validate_route_id(&binding.model_provider, \"provider id\")?;\n            validate_route_id(&binding.model_provider_id, \"model-provider id\")?;\n            validate_model_id(&binding.model)?;\n            validate_fingerprint(&binding.first_operation_fingerprint)?;\n            if let Some(fingerprint) = binding.system_prompt_fingerprint.as_deref() {\n                validate_fingerprint(fingerprint)?;\n            }\n            if !binding_ids.insert(binding.runtime_binding_id.clone())\n                || !virtual_threads.insert(binding.virtual_thread_id.clone())\n                || !native_threads.insert(binding.native_thread_id.clone())\n            {\n                bail!(\"Runtime Chat binding state contains duplicate thread authority\");\n            }\n            for (virtual_turn_id, turn) in &binding.turns {\n                validate_virtual_turn_id(virtual_turn_id)?;\n                validate_native_record_id(&turn.native_turn_id, \"native turn id\")?;\n                validate_fingerprint(&turn.operation_fingerprint)?;\n                validate_fingerprint(&turn.request_fingerprint)?;\n            }\n        }\n        Ok(())\n    }\n}\n\nimpl RuntimeChatRelayHost {\n    pub(crate) fn open(\n        config: Config,\n        _plugin_registry: Arc<PluginRegistry>,\n        private_root: PathBuf,\n        target_ref: String,","sourceCodeStart":213,"sourceCodeEnd":249,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/73e0f67d83c59909b571efdfc88c4bc28c309cb1/crates/tui/src/runtime_chat_relay.rs#L213-L249","documentation":"RelayState::validate enforces uniqueness of thread authority identifiers: runtime_binding_id, virtual_thread_id, and native_thread_id must each be unique across all bindings in the state. A duplicate means two bindings claim the same thread identity, which would make routing ambiguous, so persistence is refused.","triggerScenarios":"Calling persist_state (or the persisted_binding_state_rejects_duplicate_or_nonopaque_authority test) with a RelayState containing two bindings that share any of runtime_binding_id, virtual_thread_id, or native_thread_id.","commonSituations":"Copy-pasting a binding in test fixtures; a merge of two state files that produced overlapping ids; a bug that regenerates the same virtual thread id for two runs; restoring state where a new binding reused an old id.","solutions":["Remove or regenerate the duplicate binding so each runtime_binding_id, virtual_thread_id, and native_thread_id is unique","Regenerate the virtual thread id (local_thread_ + fresh hex) for the second binding","Deduplicate bindings before constructing RelayState (e.g. with a HashSet keyed on the ids)","Fix the id-generation code that produced a collision"],"exampleFix":"// before\nstate.bindings.push(binding.clone()); // same ids as an existing binding\n// after\nbinding.virtual_thread_id = new_virtual_thread_id();\nbinding.native_thread_id = new_native_thread_id();\nstate.bindings.push(binding);","handlingStrategy":"validation","validationCode":"fn ensure_unique_authority(state: &RelayState) -> Result<()> {\n    let mut seen = std::collections::HashSet::new();\n    for b in &state.bindings {\n        for id in [&b.runtime_binding_id, &b.virtual_thread_id, &b.native_thread_id] {\n            if !seen.insert(id.clone()) {\n                anyhow::bail!(\"duplicate thread authority: {id}\");\n            }\n        }\n    }\n    Ok(())\n}","typeGuard":"fn bindings_have_unique_authority(state: &RelayState) -> bool {\n    let ids: Vec<_> = state.bindings.iter()\n        .flat_map(|b| [&b.runtime_binding_id, &b.virtual_thread_id, &b.native_thread_id])\n        .collect();\n    ids.iter().collect::<std::collections::HashSet<_>>().len() == ids.len()\n}","tryCatchPattern":"if let Err(e) = relay.persist_state(&state) {\n    if e.to_string().contains(\"duplicate thread authority\") {\n        // regenerate ids for the offending binding and retry once\n    } else { return Err(e); }\n}","preventionTips":["Always allocate ids from the single local id generator; never clone bindings with their ids","Deduplicate bindings against existing state before insertion","Key in-memory bindings by (virtual_thread_id, native_thread_id) so duplicates surface early"],"tags":["state","validation","duplicate-ids"],"backgroundTag":"schema-validation-failed","analyzedSha":"73e0f67d83c59909b571efdfc88c4bc28c309cb1","analyzedAt":"2026-09-22T01:30:00.501Z","contentChangedAt":"2026-09-22T01:30:00.501Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}