ErrLookup › langchain-ai/deepagents
langchain-ai/deepagents
The batteries-included agent harness. · Python · 394 source files
Analyzed at a1af029e6e on 2026-08-29. 709 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Invalid DEEPAGENTS_HOME | exception | error | configuration, environment, path-validation |
| Server offload operations may not write | exception | error | security, checkpoint, offload, state-validation |
| Local filesystem backend is unavailable. | exception | error | backend, runtime, path-validation |
| Failed to parse as JSON: . Value was | validation | error | json, environment, configuration, parsing |
| Refused pricing catalog with | validation | error | pricing, data-validation, network, safety-guard |
| NotImplementedError raised by abstract `execute` (backend… | exception | error | python, not-implemented, sandbox, shell-execution |
| Offload did not complete after | exception | error | offload, hooks, retry-limit, protocol |
| allow_fs_tools must be None or a non-empty list | validation | error | configuration, security, validation, allowlist |
| Package is not installed | exception | error | python, import, dependency-missing, config |
| ReadResult.total_lines requires start_line and end_line to… | validation | error | validation, dataclass, backend-protocol |
| StateBackend requires CONFIG_KEY_READ / CONFIG_KEY_SEND in… | exception | error | python, langgraph, state-backend, config, runtime-error |
| Conversation history was offloaded to | console | warning | summarization, media, storage, data-loss, python |
| thread_id is required in config.configurable | validation | error | config, validation, thread-id, langgraph |
| self exposure requires ; set =allowlist or open for other… | validation | error | config, env, validation |
| Blueprint ' ' exists but its last build failed. Delete it… | exception | error | runloop, blueprint, build-failed, dockerfile |
| Invalid ALLOW_FS_TOOLS value: unknown filesystem tool… | validation | error | configuration, env-var, validation, valueerror |
| <dynamic deprecation warning message from captured record> | console | warning | deprecation, python, api-migration, langchain |
| exposes no slot, so dcode cannot . The SDK's summarization… | exception | error | version-compatibility, sdk-internals, monkeypatch, attributeerror |
| {str(exc)} | exception | error | mcp, oauth, config-validation, env-var |
| Failed to install | console | error | cli, plugin-install, marketplace |
| schedule must look like 'in 30m' or 'every 15m' | validation | error | validation, cron, input-format |
| An offload result must carry a reason. | validation | error | validation, api-contract, offload |
| Installed but failed to load from cache | exception | error | plugins, marketplace, install, cache |
| workspace binding schema is unsupported for thread | exception | error | workspace, schema-version, conflict, state |
| Failed to add marketplace | console | error | cli, marketplace, credential-redaction |
| NotImplementedError raised by abstract `write` (backend… | exception | error | not-implemented, abstract-method, backend-protocol |
| SDK tool is unavailable. | exception | error | python, runtime, sdk-version, middleware |
| The selected Python runtime does not contain Deep Agents… | console | critical | environment, python-runtime, missing-dependency, script |
-32600 ACP limitation: this agent raised a free-form LangGraph interrupt(), which ACP… | error_code | error | acp, interrupt, human-in-the-loop, protocol-limitation, json-rpc |
| Invalid marketplace URL | exception | error | validation, url, urlparse |
| StateBackend must be used inside a LangGraph graph… | exception | error | python, langgraph, state-backend, misuse, runtime-error |
| Could not import Deep Agents Code dependencies or locate… | console | critical | environment, missing-dependency, path, script |
| does not define a callable 'extension' factory | validation | error | extensions, plugin-loading, python |
| Classifier result did not contain exactly one decision per… | validation | error | classifier, validation, auto-mode, llm-output |
| not set. The app must set this env var before server… | exception | critical | environment, sqlite, checkpointer |
| Remote marketplace sources must use https | exception | error | validation, https, security, url |
| Failed to create Runloop devbox from | exception | error | runloop, devbox, api-error, rate-limit |
| No credentials found for provider | exception | error | authentication, api-key, env-var, config |
| Not signed in to ChatGPT. Run `/auth` and select… | exception | error | authentication, oauth, chatgpt, codex, config |
| Hook resume invocation_id mismatch: expected | validation | error | hooks, interrupt, resume, identity-check |
| workspace identity changed for thread | exception | error | workspace, identity, conflict, state |
| Invalid : expected a JSON string list | validation | error | json, environment, type-validation, configuration |
| Failed to parse credential file | exception | error | auth, file-corruption, json, local-storage |
| Server ' ' cannot set both 'allowedTools' and… | validation | error | config, mcp, validation, tool-filtering |
| Invalid marketplace source format. Try: owner/repo… | exception | error | validation, input-parsing, marketplace |
| Expected UserPromptSubmitDecision, got | exception | error | hooks, type-validation, typeerror |
| Unsupported hook event | exception | error | typeerror, hooks, internal-invariant, projection |
| HarnessProfile.excluded_middleware is invalid: - required… | validation | error | python, profiles, middleware, config |
| GitHub marketplace URLs must contain exactly owner/repo | exception | error | validation, github, url |
| Human decision count does not match pending approval calls | validation | error | validation, human-in-the-loop, auto-mode |
| Context Hub conflict retry loop exhausted unexpectedly | exception | error | python, concurrency, internal-invariant, context-hub |
| remote source must be an absolute HTTPS URL | validation | error | validation, configuration, url, https |
| RemoteAgent workspace is not configured. | exception | error | configuration, workspace, setup, remote-agent |
| interpreter.enable_interpreter is missing from the config… | exception | error | configuration, manifest, internal-error, runtimeerror |
| Invalid MCP config at | validation | error | mcp, config, validation, json |
| NotImplementedError raised by abstract `delete` (backend… | exception | error | python, not-implemented, backend-protocol, optional-capability |
| exposure mode 'open' allows arbitrary senders to trigger… | validation | error | security, configuration, env-var, channels |
| Extension registration is closed for this session | exception | error | extensions, lifecycle, registration |
| External editor failed | exception | error | editor, subprocess, process-failure |
| skills.extra_allowed_dirs is missing from the configuration… | exception | error | config, invariant, internal |
| tool ' ' not registered | exception | error | concurrency, quickjs, tool-bridge, race-condition |
| Agent initialization failed | exception | critical | acp, agent-initialization, factory, runtime-error |
| Git command failed | exception | error | git, subprocess, authentication, network |
| : unsafe zip path | exception | critical | security, zip-slip, path-traversal, import |
| trusted thread, turn, and tool-call identity are required | validation | error | validation, tool-call, identity, auto-mode |
| could not write the complete temporary artifact | exception | error | filesystem, disk-full, temp-file, io |
| Error: Could not read the skill trust store | console | error | cli, trust-store, json |
| Invalid JSON syntax in | exception | error | plugins, manifest, json, parse-error |
| LangGraph returned a non-list messages channel. | exception | error | langgraph, thread-state, messages, type-error |
| QuickJS context is closed | exception | error | lifecycle, quickjs, use-after-close |
| HarnessProfile.excluded_middleware entries matched no… | validation | error | configuration, harness-profile, middleware, typo |
| Failed to | console | error | cli, plugin-enable, plugin-disable |
| Invalid recent startup mode | validation | error | python, validation, config, enum |
| Repository root must be an absolute contained path | validation | error | path-validation, security, configuration |
| Human decision count does not match Manual pending calls | validation | error | auto-mode, human-in-the-loop, validation, approval |
| call_id and failed_attempt must be provided together | exception | error | python, validation, api, correlation |
| Blueprint name is required when no blueprint ID is set | exception | error | runloop, blueprint, api-misuse, internal |
| Refusing to remove non-socket external event path | exception | error | filesystem, unix-socket, event-bus |
| MCP token file is not a JSON object (found ). Delete it and… | exception | error | mcp, json, schema-validation, corrupt-file |
| Offload compaction requires checkpointed conversation… | validation | error | compaction, validation, offload, empty-state |
| ChatGPT session expired. Run `/auth` and select… | exception | error | authentication, token-expired, oauth, codex, chatgpt |
| Path does not exist | exception | error | filesystem, path, validation |
| session/load requires an agent compiled with a checkpointer | exception | error | python, toml, config-file, oserror, io |
| Skill path resolves outside all allowed skill directories… | exception | error | security, symlink, path-validation |
| allow_fs_tools must include 'read_file' | validation | error | config-validation, valueerror, filesystem-tools |
| context.model_context_limit must be an integer or null, got | validation | error | type-error, validation, python, offload-api |
| cron job not found in current conversation | exception | error | cron, not-found, scope-mismatch, state-management |
| Extension options are missing from the config manifest | exception | error | configuration, extensions, internal-consistency |
| MCP config a project root | validation | error | mcp, invariant, dataclass, config-scope |
| Could not construct middleware | exception | error | extensions, middleware, instantiation |
| Failed to apply provider profile for | exception | error | model-config, dependency, provider-integration, version-mismatch |
| Plugin has an unusable source path ( ) | exception | error | plugins, marketplace, auto-update, source-path |
| system_prompt missing required format slot(s) | validation | error | python, skills, validation, value-error |
| {unresolved_source_message(plugin_id, entry, rejections)} | exception | error | plugin-install, source-materialization, symlink |
| Context Hub commit succeeded but its hash could not be… | exception | error | context-hub, commit, remote, consistency |
| Failed to run git | exception | error | git, subprocess, timeout, network |
| StoreBackend must be used inside a LangGraph graph… | exception | error | runtime-context, store, langgraph |
| MCP config file not found | exception | error | mcp, config, file-not-found |
| Pending graph work remained on thread | exception | error | langgraph, state, cancellation, recovery |
| Server graph ' ' did not initialize within s | exception | error | timeout, network, startup |