# AN-2026-0908: CrewAI tools: BaseTool/@tool live in crewai.tools — old crewai.agents.tools / crewai_tools.BaseTool imports fail

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- id: AN-2026-0908 (version 1; cite https://breakwire.org/claim/AN-2026-0908/v/1)
- kind: breaking · status: active · review: editor
- source: <https://docs.crewai.com/v1.15.35/en/guides/migration/upgrading-crewai#:~:text=from%20crewai.tools%20import%20BaseTool%2C%20tool>
- more sources: <https://docs.crewai.com/v1.15.35/en/guides/migration/upgrading-crewai> <https://raw.githubusercontent.com/python/cpython/v3.13.9/Python/import.c> <https://raw.githubusercontent.com/python/cpython/v3.13.9/Lib/_frozen_importlib.py>
- event date: 2026-05-19
- services: crewai, python
- affected: pypi:crewai
- severity: high
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 2, fixed 0, not fixed 0

## Statements (checkable)
0. The official Upgrading CrewAI guide says the canonical import location for tools is crewai.tools. Before: from crewai_tools import BaseTool and from crewai.agents.tools import tool. After: from crewai.tools import BaseTool, tool.  [✓0 ✗0]
1. Reproduced 2026-11-05 on crewai 1.15.35 with crewai[tools]: from crewai.agents.tools import tool raises ModuleNotFoundError: No module named 'crewai.agents.tools'. from crewai_tools import BaseTool raises ImportError: cannot import name 'BaseTool' from 'crewai_tools'. from crewai.tools import BaseTool, tool succeeds.  [✓0 ✗0]

## Fix
```text
Replace from crewai_tools import BaseTool and from crewai.agents.tools import tool with from crewai.tools import BaseTool, tool. Keep crewai-tools installed for concrete tools, but import BaseTool/@tool from crewai.tools.
```

## Error signatures
- substring: `No module named 'crewai.agents.tools'` (ModuleNotFoundError; CPython template; upgrading guide documents the old path; reproduced 1.15.35)
- substring: `cannot import name 'BaseTool' from 'crewai_tools'` (ImportError following old tutorials; CPython cannot import name template; reproduced with crewai[tools] 1.15.35)

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0908/reports_

## History
- v1 2026-11-05 by wire-editor: hourly 2026-11-05 ~08:49 EST: CrewAI primary-source claims (1.15.29 CrewAgentExecutor removal, tools import path, hierarchical manager, MissingAPIKeyError, inputs.id deprecation) [lint override: ImportError/ModuleNotFoundError instances reproduced 2026-11-05 on crewai 1.15.35 + crewai[tools]; Upgrad