fix(tools): support CREWAI_API_URL/CREWAI_BEARER_TOKEN env vars - #7390
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughThe automation tool now supports zero-argument construction, environment-variable credential fallbacks, explicit-argument precedence, deferred configuration validation, updated tool metadata, and tests for compatibility and execution behavior. ChangesAutomation configuration
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InvokeCrewAIAutomationTool required crew_api_url and crew_bearer_token as positional __init__ arguments with no environment-variable fallback, even though docs.crewai.com documents CREWAI_API_URL/CREWAI_BEARER_TOKEN as alternatives. It also could not be instantiated with zero arguments, which blocks CrewAI AMP Studio's "Invoke Amp Automation" internal tool: the Studio runtime resolves tools by class reference and instantiates them with no arguments. - crew_api_url/crew_bearer_token become optional, falling back to CREWAI_API_URL/CREWAI_BEARER_TOKEN (explicit args still win), mirroring the env-var pattern already used by GenerateCrewaiAutomationTool. - crew_name/crew_description become optional too, defaulting to the tool's existing generic name/description, so InvokeCrewAIAutomationTool() never raises at construction time. - Declare env_vars: list[EnvVar] so the tool catalog surfaces the two env vars, matching the sibling tool. - Raise a clear ValueError at use time when crew_api_url/crew_bearer_token are still missing, instead of failing inside `requests` or with the previous confusing TypeError about positional arguments. - Update the tool's README and the edge docs page (docs/edge/en/tools/integration/crewaiautomationtool.mdx) so the "Tool Arguments" table matches the corrected code. Fully backward compatible: existing positional/keyword constructor calls are unchanged. tool.specs.json is left untouched; the "Generate Tool Specifications" CI workflow regenerates and commits it automatically once this is pushed. crewAIInc/crewAI-tools (the previous home of this tool) is archived and can no longer receive pushes, so this fix targets the actively maintained copy of the tool under lib/crewai-tools/ instead.
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Inline comments:
In
`@lib/crewai-tools/src/crewai_tools/tools/invoke_crewai_automation_tool/invoke_crewai_automation_tool.py`:
- Around line 155-156: Update the configuration resolution in the
invoke_crewai_automation_tool flow to use the explicit crew_api_url and
crew_bearer_token whenever they are not None, including empty strings; only fall
back to CREWAI_API_URL and CREWAI_BEARER_TOKEN when the corresponding argument
is None, so _ensure_configured() validates explicit empty values.
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An explicit empty string is a caller mistake, so it must reach the configuration check and be reported as missing, rather than being silently replaced by CREWAI_API_URL/CREWAI_BEARER_TOKEN. Adds a regression test and docstrings for the test functions flagged by the docstring coverage check. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Pull request overview
Adds environment-based configuration and zero-argument initialization for InvokeCrewAIAutomationTool.
Changes:
- Supports credential environment variables with explicit-argument precedence.
- Adds deferred configuration validation and tests.
- Updates English documentation and generated tool metadata.
File summaries
| File | Description |
|---|---|
tool.specs.json |
Reflects optional parameters and environment variables. |
invoke_crewai_automation_tool_test.py |
Tests initialization, fallback, validation, and compatibility. |
README.md |
Documents optional configuration. |
invoke_crewai_automation_tool.py |
Implements defaults, fallback, and validation. |
crewaiautomationtool.mdx |
Updates English reference documentation. |
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| | **crew_api_url** | `str` | No | `None` | Base URL of the CrewAI Platform automation API. Falls back to the `CREWAI_API_URL` environment variable when omitted. | | ||
| | **crew_bearer_token** | `str` | No | `None` | Bearer token for API authentication. Falls back to the `CREWAI_BEARER_TOKEN` environment variable when omitted. | | ||
| | **crew_name** | `str` | No | generic name | Name of the crew automation. Set explicitly outside CrewAI AMP Studio so the LLM sees a meaningful tool name. | | ||
| | **crew_description** | `str` | No | generic description | Description of what the crew automation does. Set explicitly for the same reason as `crew_name`. | |
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Solid PR — clean approach, good backward compat, thorough tests. A few observations:
What's good:
- Env var fallback pattern mirrors
GenerateCrewaiAutomationTool— consistency across sibling tools ✓ _ensure_configured()deferring validation to runtime is the right call — lets zero-arg instantiation work for Studio while still catching misconfigurations before they hitrequests- Empty string handling is intentional and well-tested (explicit empty ≠ "please read env")
- 8 new tests covering all the important paths: zero-arg, positional compat, env fallback, precedence, partial config errors, and dynamic schema
- CI all green across Python 3.10–3.13, type-checker, lint, CodeQL
Minor notes:
- PR body says
tool.specs.jsonwas "deliberately left untouched" but it does appear in the diff (36+/10-). Looks like the generate-specs workflow picked it up — the changes are consistent with the schema update, so no issue, just a stale note in the description. - The generic
DEFAULT_TOOL_NAME = "invoke_amp_automation"default is a reasonable trade-off for unblocking Studio. The callout in the PR body about this being a judgement call worth maintainer attention is appreciated — transparent about the design choice.
No blockers from my side. 💬 45
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Related issue
Fixes #7389
Summary
InvokeCrewAIAutomationToolrequirescrew_api_url,crew_bearer_token,crew_nameandcrew_descriptionas positional arguments and never reads theCREWAI_API_URL/CREWAI_BEARER_TOKENenvironment variables its own documentation presents as alternatives. That breaks two things: the documented contract, and CrewAI AMP Studio, where the tool is offered as "Invoke Amp Automation" and the declarative Flow runtime instantiates tools by class reference with no arguments (crewai/project/json_loader.py::_instantiate_tool_import_refcallstool_cls();crewai/flow/runtime/_actions.py::ToolAction._build_tooldoes the same). A Studio run fails in about 18 seconds withcannot instantiate tool ref ... without arguments.This PR targets
lib/crewai-tools/because the tool's former home,crewAIInc/crewAI-tools, is archived and its README points contributors here.What changed:
crew_api_urlandcrew_bearer_tokenbecome optional and fall back toCREWAI_API_URLandCREWAI_BEARER_TOKEN. Explicit arguments still win. This mirrorsGenerateCrewaiAutomationTool, the sibling CrewAI Platform tool in this package, which already usesField(default_factory=lambda: os.getenv(...)).crew_nameandcrew_descriptionbecome optional too, defaulting to the genericnameanddescriptionclass attributes that already existed on the class and were unreachable, since__init__always overwrote them. This is what letsInvokeCrewAIAutomationTool()succeed with no arguments, which the Studio runtime needs. Outside Studio, set them explicitly so the model sees a meaningful tool name and description.env_vars: list[EnvVar]throughField(default_factory=...), matching the sibling tool, so the tool catalog surfaces both variables as required.ValueErrornaming exactly what is missing, instead of failing insiderequestswithInvalid URL 'None/kickoff'or returning a bare 401 from the API.docs/edge/en/tools/integration/crewaiautomationtool.mdx, whose "Tool Arguments" table still marked the four parameters as required. Versioned docs snapshots were left untouched.Backward compatibility is preserved: existing positional and keyword calls keep working, and there is a test for exactly that.
Verification
Added
lib/crewai-tools/tests/tools/invoke_crewai_automation_tool_test.py; no test file existed for this tool before. It follows the style ofgenerate_crewai_automation_tool_test.pyand covers: no-argument instantiation, the existing positional and keyword call shape, the environment-variable fallback, explicit arguments winning over the environment, the clear error when nothing is configured, the error naming only the missing half when one of the two is set, a successful mocked run configured purely from the environment, and the dynamiccrew_inputsschema.The 2 failures and 5 errors in the full package run are pre-existing on
mainand unrelated to this change: a permission test that does not apply when running as root, and missing optional extras for the mongodb and oxylabs tools. Neither touchesinvoke_crewai_automation_toolorgenerate_crewai_automation_tool.Additional context
lib/crewai-tools/tool.specs.jsonwas deliberately left untouched. It is generated, and the "Generate Tool Specifications" workflow regenerates and commits it on push, as it did for earlier tool PRs. Regenerating it locally produced an unrelated diff of about 1200 lines across many other tools, because the committed manifest already lagsmain.This PR was prepared by an agent and is labeled
llm-generatedaccordingly. One judgement call deserves maintainer attention in particular: givingcrew_nameandcrew_descriptiongeneric defaults. Without them, no-argument instantiation still fails and the Studio path stays broken; with them, a tool namedinvoke_amp_automationcan reach a model's tool list when a developer forgets to name it. I chose to unblock Studio and document the expectation. Happy to restrict the defaults to the Studio path, or to drop them, if you prefer.