{"record":{"id":"23cc6d6d00beb7c8","repo":"paperclipai/paperclip","slug":"codex-history-identity-mismatch","errorCode":"codex_history_identity_mismatch","errorMessage":"codex_history_identity_mismatch","messagePattern":"codex_history_identity_mismatch","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"packages/paperclip-runner/src/live/runnerd-codex-transport.ts","lineNumber":3349,"sourceCode":"          : undefined;\n      await this.#command(\n        \"turn.steer\",\n        {\n          text,\n          turnId: this.#durableTurnId,\n          providerTurnId: expectedTurnId,\n          ...(correlationId ? { correlationId } : {}),\n        },\n        correlationId,\n      );\n      return {};\n    }\n    if (method === \"turn/interrupt\") {\n      await this.#command(\"turn.interrupt\", params);\n      return {};\n    }\n    if (method === \"thread/turns/list\" || method === \"thread/items/list\") {\n      if (params.threadId !== this.#threadId) throw new Error(\"codex_history_identity_mismatch\");\n      const snapshot = await this.request(\"thread/read\", { threadId: this.#threadId, includeTurns: false });\n      const turns = record(snapshot.thread).turns as Array<Record<string, unknown>>;\n      let data: Array<Record<string, unknown>>;\n      if (method === \"thread/turns/list\") {\n        data = turns.map(turn => ({ ...turn, items: [], itemsView: \"notLoaded\" }));\n      } else {\n        if (params.turnId !== this.#turnId) throw new Error(\"codex_history_unavailable: requested turn is outside the retained runner event window\");\n        const items = new Map<string, Record<string, unknown>>();\n        let observedTurn = \"\";\n        let observedStart = false;\n        for (const event of this.#core?.store.state.committedEvents ?? []) {\n          const payload = record(record(event.envelope.payload).payload);\n          if (event.eventType === \"turn.started\") observedTurn = String(payload.providerTurnId ?? payload.turnId ?? record(payload.turn).id ?? \"\");\n          if (event.eventType === \"turn.started\" && observedTurn === params.turnId) observedStart = true;\n          if (event.eventType !== \"item.completed\" || observedTurn !== params.turnId) continue;\n          const item = record(rehydrateRunnerdItemNotification(payload, this.#threadId, observedTurn).item);\n          if (typeof item.id === \"string\") items.set(item.id, { turnId: observedTurn, item });\n        }","sourceCodeStart":3331,"sourceCodeEnd":3367,"githubUrl":"https://github.com/paperclipai/paperclip/blob/01ad8584922b5d85292b1723cae71fa0d9b07a19/packages/paperclip-runner/src/live/runnerd-codex-transport.ts#L3331-L3367","documentation":"The thread/turns/list and thread/items/list handlers only serve history for the thread this transport instance is currently bound to (#threadId). Requesting history for any other threadId throws, since the retained runner event window belongs to a different thread.","triggerScenarios":"Calling request('thread/turns/list' | 'thread/items/list', { threadId: X }) where X !== this.#threadId — e.g. a stale client handle, a thread id from a previous session, or a mismatched id format.","commonSituations":"Client cache holding an old threadId after reconnect; reading another company/thread's history through the same transport; id normalization differences (prefix vs full id); adopting a runner whose bound thread differs from the client's expectation.","solutions":["Read the current threadId (e.g. via thread/read or transport state) and request history for that id.","Create a new transport/session bound to the desired thread before listing its turns/items.","Fix the client to use the threadId returned from thread/start rather than a cached value.","Normalize thread ids before comparison if formatting differs."],"exampleFix":"// before\nawait transport.request('thread/turns/list', { threadId: oldThreadId });\n// after\nconst { thread } = await transport.request('thread/read', { threadId: transport.currentThreadId });\nawait transport.request('thread/turns/list', { threadId: transport.currentThreadId });","handlingStrategy":"validation","validationCode":"const current = transport.currentThreadId ?? (await transport.request('thread/read', {})).thread?.id;\nif (threadId !== current) throw new Error(`transport bound to ${current}, not ${threadId}`);","typeGuard":null,"tryCatchPattern":"try {\n  await transport.request('thread/items/list', { threadId, turnId });\n} catch (err) {\n  if ((err as Error).message === 'codex_history_identity_mismatch') {\n    threadId = await resolveBoundThreadId(transport);\n    await transport.request('thread/items/list', { threadId, turnId });\n  } else throw err;\n}","preventionTips":["Always use threadIds returned by thread/start/thread/read of the same transport","Clear cached thread ids on reconnect","Scope one transport instance per thread"],"tags":["history","identity","state-mismatch"],"backgroundTag":"invalid-argument-value","analyzedSha":"01ad8584922b5d85292b1723cae71fa0d9b07a19","analyzedAt":"2026-09-10T03:14:50.855Z","contentChangedAt":"2026-09-10T03:14:50.855Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}