| environment network policy requires managed network… | validation | error | |
| failed to build signable request | exception | error | |
| failed to deserialize merged permissions profile while… | validation | error | |
| process interrupt is not supported by this process backend | exception | error | |
| runner pipe closed before spawn_ready | exception | error | |
| tool input schema must not be a singleton null type | validation | error | |
| convert deny capability SID failed | exception | error | |
| Environment variable | validation | error | mcp, codex, environment-variable, unicode, bearer-token, encoding |
| executor-local network proxy launch requires an enabled… | exception | error | |
| failed to build SigV4 signing params | exception | error | |
io::ErrorKind::PermissionDenied remote control is disabled by managed requirements | exception | error | |
| features.multi_agent_v2.min_wait_timeout_ms must be at most… | validation | error | codex, config, multi-agent, timeouts |
| MCP startup failed | exception | error | |
| failed to process path inside worktree | exception | error | |
| OAuth login task was cancelled | exception | error | |
| outputSchema must be a plain JSON object | validation | error | |
| session configured event was not the first event in the… | exception | error | |
| Session persistence is disabled; cannot | exception | error | |
| failed to update runtime allowlist | exception | error | |
| filename | validation | error | rust, memories, validation, filename, codex |
| guardian review session could not set permission profile | exception | error | |
| handshaking with MCP server failed | exception | error | |
| No corresponding config content | exception | error | |
| policy path has no parent | exception | error | |
| rollout missing metadata builder | exception | error | |
| sandbox ACL path must be absolute | validation | error | |
| telemetry shutdown worker stopped before initializing | exception | error | |
| timed out after waiting for OAuth refresh lock | exception | error | |
| CreateFileW failed for pipe | exception | error | |
| Git apply failed (applied= , skipped= , conflicts=… | exception | error | |
HelperReadAclHelperSpawnFailed spawn read ACL helper failed | error_code | error | |
| idempotency key refers to deleted project | validation | error | |
| Luna response did not contain assistant output | exception | warning | rust, model-response, guardian, codex |
| remote control client list limit must be between 1 and 100 | validation | error | validation, pagination, remote-control, invalid-input |
| Remote control is enabled on | exception | error | |
| Unable to locate Codex CLI binaries. Ensure | exception | error | |
| `--ws-token-file` or `--ws-token-sha256` is required when… | validation | error | |
| agent thread limit reached | exception | error | |
| failed to resolve CODEX_HOME for MCP OAuth | exception | error | |
| invalid value for : (allowed ) | validation | error | |
| packaged defaults config file | exception | error | |
| status history rate-limit state poisoned | panic | error | |
| unsupported model item type | exception | error | |
| env_vars entry ` ` uses source `remote`, which requires… | validation | error | |
| network policy amendment host | exception | error | |
| refusing to clear symlinked memory root | exception | error | |
| login is not registered for waiting | exception | error | |
| OAuth HTTP response body exceeds | exception | error | |
| PeekNamedPipe failed while waiting for spawn_ready | exception | error | |
| code cell disappeared during output linking | exception | error | |
| command args are empty | exception | error | |
| cannot be blank | validation | error | |
| MCP client recovery semaphore closed | exception | error | |
| runner frame length overflow | exception | error | |
| field ` ` cannot be empty | validation | error | config, validation, empty-string, constraints, rust |
| timed out after refreshing OAuth tokens for server | exception | error | |
| unknown MCP server | exception | error | |
| agents. .config_file must point to an existing file at | validation | error | |
| failed to build OTLP metrics exporter | exception | error | |
| features.multi_agent_v2.default_wait_timeout_ms must be at… | validation | error | codex, config, multi-agent, timeouts |
| path must be a directory | validation | error | |
| remote control client revoke requires environmentId | validation | error | validation, remote-control, revocation, api-params, invalid-input |
| remote control requires sqlite state db | exception | error | |
| timeout waiting for child process to exit | exception | error | |
| failed to lock MCP OAuth | exception | error | |
HelperDpapiProtectFailed dpapi protect failed for offline user | error_code | error | |
| memory root cannot be a symbolic link | validation | error | |
| startup CA bundle contained no certificates | exception | error | |
| client already initializing | exception | error | |
| duplicate tool | exception | error | |
| RegCreateKeyExW failed | exception | error | |
| remote control pairing requires remote control to be enabled | exception | error | |
| request contains a non-UTF8 header value | exception | error | |
| reserved thread ID cannot be used when resuming a thread | validation | error | |
| seccomp setup error | exception | error | |
| tool call rejected because the catalog changed after | exception | error | |
| agents.max_concurrent_threads_per_session must be at least 1 | validation | error | codex, config, agents, validation |
| ChatGPT backend requests require Codex backend auth | exception | error | |
| compaction request completion used compaction , but start… | exception | error | |
| error loading config | exception | error | |
| failed to send elicitation response | exception | error | |
HelperLogFailed failed to write setup log line | error_code | error | |
| invalid shell environment policy in | validation | error | |
| runtime code cell in thread mapped to both and | exception | error | |
| wait tool request payload | exception | error | |
| We're currently experiencing high demand, which may cause… | exception | error | |
-32602 {0} | validation | error | |
| Desktop app at failed OpenAI signature verification (team … | exception | error | |
| duplicate code cell start for | exception | error | |
| Failed to read config file | exception | error | |
| `experimental_thread_store_endpoint` is no longer… | validation | error | |
| failed to determine the working directory recorded for the… | exception | error | |
HelperSandboxLockFailed lock sandbox dir failed | error_code | error | |
| path ` ` must be relative when joining a path URI | exception | error | |
| code-mode host bulk websocket pairing was abandoned | exception | error | |
| Codex executable path is not configured | exception | error | |
| elicitation request router unavailable | exception | error | |
| GetLengthSid failed for | exception | error | |
| must be at least | validation | error | |
| schema still references namespaced definitions; found | exception | error | |