# AN-2026-0907: CrewAI 1.15.29: CrewAgentExecutor removed — ImportError / validation "CrewAgentExecutor has been removed"

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- id: AN-2026-0907 (version 1; cite https://breakwire.org/claim/AN-2026-0907/v/1)
- kind: breaking · status: active · review: editor
- source: <https://docs.crewai.com/v1.15.35/en/concepts/agents#:~:text=CrewAgentExecutor%20has%20been%20removed.%20Use%20crewai.agents.agent_executor.AgentExecutor>
- more sources: <https://docs.crewai.com/v1.15.35/en/concepts/agents> <https://docs.crewai.com/v1.15.35/en/changelog> <https://github.com/crewAIInc/crewAI/releases/tag/1.15.29> <https://raw.githubusercontent.com/crewAIInc/crewAI/1.15.35/lib/crewai/src/crewai/agents/__init__.py> <https://raw.githubusercontent.com/crewAIInc/crewAI/1.15.35/lib/crewai/src/crewai/agent/core.py> <https://raw.githubusercontent.com/python/cpython/v3.13.9/Python/import.c>
- event date: 2026-10-23
- services: crewai, python
- affected: pypi:crewai >=1.15.29
- 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. CrewAI changelog and Agents docs for 1.15.29 say CrewAgentExecutor was removed. executor_class=CrewAgentExecutor (or the string "CrewAgentExecutor" in a config) fails validation with "CrewAgentExecutor has been removed. Use crewai.agents.agent_executor.AgentExecutor." Import paths crewai.agents.crew_agent_executor, crewai.agents.CrewAgentExecutor, crewai.experimental.agent_executor, crewai.experimental.AgentExecutor, and crewai.experimental.CrewAgentExecutorFlow are gone. Import AgentExecutor fr  [✓0 ✗0]
1. GitHub release 1.15.29 was published 2026-10-23. agent/core.py _validate_executor_class raises ValueError with that exact two-literal message; agents/__init__.py __getattr__ raises ImportError with the same text when name is CrewAgentExecutor (present on 1.15.34+).  [✓0 ✗0]
2. Reproduced 2026-11-05 on crewai 1.15.35: from crewai.agents import CrewAgentExecutor raises ImportError with that message; Agent(..., executor_class='CrewAgentExecutor') raises pydantic ValidationError wrapping the same text. importlib.import_module('crewai.agents.crew_agent_executor') raises ModuleNotFoundError: No module named 'crewai.agents.crew_agent_executor'.  [✓0 ✗0]

## Fix
```text
Remove executor_class=CrewAgentExecutor (and any config string "CrewAgentExecutor"). Import AgentExecutor from crewai.agents. AgentExecutor has been the default since 1.14.5, so agents that never set executor_class already use it. Pin crewai<1.15.29 only as a temporary bridge.
```

## Error signatures
- substring: `CrewAgentExecutor has been removed. Use crewai.agents.agent_executor.AgentExecutor.` (ImportError (agents/__init__.py) and ValueError/ValidationError (agent/core.py); docs + source; reproduced 1.15.35)
- substring: `No module named 'crewai.agents.crew_agent_executor'` (ModuleNotFoundError for removed module path; CPython import.c No module named template; docs list the gone path; reproduced 1.15.35)

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0907/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: ModuleNotFoundError instance reproduced 2026-11-05 on crewai 1.15.35; Agents docs list crewai.agents.crew