| Thread history returned duplicate seq values. | validation | error | validation, threads, data-integrity, pagination |
| Automatic account creation is disabled. Contact your… | http | error | auth, oidc, sso, http-403, user-provisioning |
registration_disabled Self-registration is disabled on this deployment | http | warning | auth, http-403, registration, config |
| Cannot set header ' ' to masked value '***'; provide a real… | http | error | mcp, secrets, masking, headers, http-400 |
| Artifact is too large to edit | http | warning | api, artifacts, size-limit, http-413, limits |
| fact.content must be a string | exception | error | deermem, memory, validation, facts |
| No chat models are configured. Please configure at least… | exception | critical | config, model, startup, valueerror |
| agent_name is required to upsert a fact | validation | error | memory, scoping, validation, deermem |
| File ' ' not found in skill archive | http | error | api, artifacts, skills, zip, not-found, http-404 |
| retrieval scope agentName must be a string or null | exception | error | typing, retrieval, deermem, memory, scope |
system_already_initialized System already initialized | http | warning | auth, http-409, bootstrap, admin |
| User not found | http | error | auth, http-401, user-management, stale-cookie |
| Thread has a run in flight. Save after the run finishes. | http | error | artifacts, http-409, concurrency, threads |
| Failed to update memory fact. | http | error | memory, filesystem, http-500, gateway |
| Failed to read latest checkpoint | http | error | checkpoint, http-500, infrastructure |
| Failed to update MCP server | exception | error | mcp, config, http, frontend |
| once schedule must be in the future | http | warning | scheduled-tasks, validation, http-422, time |
| Checkpoint not found | http | warning | runs, http-404, checkpoints |
| Failed to update thread | http | error | threads, database, http-500, patch, metadata |
| Edited message cannot be empty | http | info | edit, validation, http-409 |
| expected exactly 32 bytes | validation | error | buzz, nostr, validation, config |
| GITHUB_APP_ID is not set | exception | error | github-app, environment-variables, configuration, auth, integration |
| unsupported FTS5 retrieval mode | exception | error | retrieval, config, validation, deermem, memory |
| Agent ' ' already exists | http | warning | http-409, agents, conflict, case-insensitive |
| Failed to load demo thread | exception | warning | demo, static-assets, frontend, threads |
| once schedule must be at least | http | warning | scheduled-tasks, scheduler, validation, http-422, time |
| agent_name is required to delete a fact | validation | error | memory, scoping, validation, deermem |
| Unable to recover SSE history after | exception | error | openviking, configuration, validation, auth |
| retrieval fact.content must be a non-empty string | exception | error | validation, retrieval, deermem, memory, typing |
| Scheduled task run repo not available | http | error | http-503, scheduler, run-history, persistence, gateway |
| agent_name | validation | error | memory, deermem, validation, required-argument |
| Memory fact ' ' not found. | http | warning | memory, http-404, idempotency |
USER_NOT_FOUND User not found | http | error | auth, http-401, user-store, jwt, gateway |
| MCP task service not available | http | error | http-503, mcp, service, persistence, gateway |
| GITHUB_APP_PRIVATE_KEY_PATH points to nonexistent file | exception | error | github-app, file-not-found, secrets, docker, kubernetes |
| Failed to load upload limits | exception | warning | upload, limits, api, frontend |
| Failed to load workspace changes. | exception | warning | api, workspace-changes, runs, network, frontend |
| GITHUB_APP_ID= is not an integer | exception | error | github-app, environment-variables, misconfiguration, validation |
| Unsupported schedule_type | http | warning | scheduled-tasks, validation, http-422, cron |
| fact.source.threadId must be a string or null | exception | error | deermem, memory, validation, facts |
| cron schedule requires schedule_spec.cron | http | warning | scheduled-tasks, cron, validation, http-422 |
| Failed to list uploaded files | exception | warning | upload, api, files, frontend |
| MCP task repo not available | http | error | http-503, mcp, tasks, persistence, lifespan, gateway |
| reuse_thread requires thread_id | http | warning | scheduled-tasks, validation, http-422, threads |
| Failed to delete file | exception | warning | upload, delete, api, idempotency, frontend |
| OpenViking default_peer_id must start with a lowercase… | validation | error | |
| mem0 base_url must use https:// because it carries the API… | validation | error | |
| OpenViking plain HTTP is allowed only for… | validation | error | |
| OpenViking trusted mode is no longer supported by this… | validation | error | |
| Console requires a SQL database backend; set… | http | error | |
| Fact scope mismatch for | exception | error | |
| OpenViking default_peer_id must not start with the reserved… | validation | error | |
| Cannot migrate previous default bucket | exception | error | |
| mem0 API key missing: environment variable | validation | error | |
| Legacy facts in require explicit migrate(user_id=...… | exception | error | |
| Expected user-memory revision | exception | error | |
| OpenViking retrieval.content_mode must be auto, abstract… | validation | error | |
| OpenViking retrieval.score_threshold must be a finite value… | validation | error | |
| (fallback: Scheduled task trigger conflicted with an active… | http | error | |
| Failed to start channel. Check the values and try again. | http | error | |
| OpenViking retrieval.max_injection_chars must be between… | validation | error | |
| Run is active on another worker; retry after lease expiry. | http | error | |
| Thread has a run in flight. Clear the goal after the run… | http | error | |
| Run is not active on this worker and cannot be cancelled | http | error | |
| Run is not active on this worker and cannot be streamed | http | error | |
| Thread has a run in flight. Update state after the run… | http | error | |
| OpenViking custom HTTP client fields are no longer… | validation | error | |
| Selected history entry has no previous content to roll back… | http | error | |
| Missing required channel configuration | http | error | |
| Thread has a run in flight. Compact after the run finishes. | http | error | |
| OpenViking USER API key is missing; set | validation | error | |
| Unknown thread-state field(s) | http | error | |
| after_seq is not supported by this backward-only endpoint | validation | error | |
| Invalid metadata filter entries | validation | error | |
| Fact cannot be upserted and deleted together | validation | error | |
| Journal contains facts without agentName | exception | error | |
| Invalid memory operation journal | exception | error | |
| OpenViking retrieval.injection_query must not be empty | validation | error | |
| OpenViking timeout_seconds must be a finite value > 0 | validation | error | |
| memory_data.facts is required for an agent full save | validation | error | |
| OpenViking retrieval.top_k must be between 1 and 100 | validation | error | |
| OpenViking base_url must be an absolute http(s) URL | validation | error | |
| Rollback blocked by security scanner | http | error | |
| agent_name is required for fact repository changes | validation | error | |
| Failed to reload skill | http | error | |
| Invalid legacy manifest entry for fact | exception | error | |
| Journal contains an invalid fact id | exception | error | |
| (fallback: Scheduled task trigger failed) | http | error | |
| Failed to stop channel. Try again. | http | error | |
| Timed out acquiring memory scope lock | exception | error | |
| Unknown journal state | exception | error | |
| Legacy facts in must be a list or mapping | exception | error | |
| Legacy manifest id mismatch for fact | exception | error | |
| Fact migration conflict for | exception | error | |
| Failed to load global memory JSON | exception | error | |
| agent_name is required to migrate legacy facts | validation | error | |
| change_set.summaries.history must be an object | validation | error | |
| Duplicate fact ids are not allowed in deletes | validation | error | |
| Legacy fact in is not an object | exception | error | |
| The source assistant message is missing an id | http | error | |