{"record":{"id":"708c9595950d3edf","repo":"Significant-Gravitas/AutoGPT","slug":"session-session-id-not-found-or-access-denied","errorCode":null,"errorMessage":"Session {session_id} not found or access denied","messagePattern":"Session (.+?) not found or access denied","errorType":"http","errorClass":"HTTPException","httpStatus":404,"severity":"error","filePath":"autogpt_platform/backend/backend/api/features/chat/routes.py","lineNumber":759,"sourceCode":"    Delete a chat session.\n\n    Permanently removes a chat session and all its messages.\n    Only the owner can delete their sessions.\n\n    Args:\n        session_id: The session ID to delete.\n        user_id: The authenticated user's ID.\n\n    Returns:\n        204 No Content on success.\n\n    Raises:\n        HTTPException: 404 if session not found or not owned by user.\n    \"\"\"\n    deleted = await delete_chat_session(session_id, user_id, organization_id=ctx.org_id)\n\n    if not deleted:\n        raise HTTPException(\n            status_code=404,\n            detail=f\"Session {session_id} not found or access denied\",\n        )\n\n    # Best-effort cleanup of the E2B sandbox (if any).\n    # sandbox_id is in Redis; kill_sandbox() fetches it from there.\n    e2b_cfg = ChatConfig()\n    if e2b_cfg.e2b_active:\n        assert e2b_cfg.e2b_api_key  # guaranteed by e2b_active check\n        try:\n            await kill_sandbox(session_id, e2b_cfg.e2b_api_key)\n        except Exception:\n            logger.warning(\n                \"[E2B] Failed to kill sandbox for session %s\", session_id[:12]\n            )\n\n    return Response(status_code=204)\n","sourceCodeStart":741,"sourceCodeEnd":777,"githubUrl":"https://github.com/Significant-Gravitas/AutoGPT/blob/9c8bb5550f446ba5d3046b78896578742495b3cf/autogpt_platform/backend/backend/api/features/chat/routes.py#L741-L777","documentation":"A 404 from DELETE /chat/sessions/{session_id}: delete_chat_session() returned falsy, meaning the session does not exist or is not owned by the requesting user/organization. The message deliberately conflates 'not found' and 'access denied' to avoid leaking the existence of other users' sessions.","triggerScenarios":"DELETE /chat/sessions/{id} where the id was already deleted, never existed, belongs to another user, or belongs to a different organization than the request context (org_id is part of the ownership scoping).","commonSituations":"Double-delete: user clicks delete in two tabs or the client retries after a first success; stale session list after deletion elsewhere; wrong org context header/token for a session created in another org.","solutions":["Treat 404 on delete as success in idempotent clients (the session is gone either way) — drop it from local state and move on.","Otherwise refresh the session list and delete by a live id.","If the session should be deletable, verify the authenticated user and org context match the session's owner fields in the DB."],"exampleFix":"// before\nif (res.status !== 204) throw new Error('delete failed');  // 404 on retry crashes\n\n// after\nif (res.status === 404) { removeSessionFromState(id); }  // idempotent: already gone\nelse if (res.status !== 204) throw new Error('delete failed');","handlingStrategy":"try-catch","validationCode":"const live = sessions.some(s => s.session_id === id);\nif (!live) { removeSessionFromState(id); return; } // idempotent skip\nawait deleteSession(id);","typeGuard":null,"tryCatchPattern":"try {\n  await deleteSession(id);\n} catch (e) {\n  if (e.status === 404) { removeSessionFromState(id); return; } // already gone: treat as success\n  throw e;\n}","preventionTips":["Make client deletes idempotent: 404 means done.","Cancel in-flight deletes when one succeeds; serialize deletes per session id.","Send the correct org context for org-owned sessions."],"tags":["backend","chat","session","http-404","idempotency"],"backgroundTag":null,"analyzedSha":"9c8bb5550f446ba5d3046b78896578742495b3cf","analyzedAt":"2026-08-14T17:17:21.957Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}