fix: use simple dict filters for local mem0 Memory instead of AND/OR format

[devin-ai-integration]

fix: use simple dict filters for local mem0 Memory instead of AND/OR format

Summary

Fixes #4030

The local mem0 Memory class expects simple dict filters like {"user_id": "bob"}, but the code was passing {"AND": [{"user_id": "bob"}]}. This caused the mem0 library to incorrectly convert the filter to a RediSearch query like @AND:{[{'user_id': 'bob'}]} @user_id:{bob}, resulting in the error: Invalid filter expression: AND is not indexed as a tag field.

Changes:

• Added for_local_memory parameter to _create_filter_for_search() method
• When using local Memory (OSS), returns simple dict filters: {"user_id": "bob"}
• When using MemoryClient (cloud API), preserves existing AND/OR format: {"AND": [{"user_id": "bob"}]}
• Updated search() method to detect Memory type and use appropriate filter format

Review & Testing Checklist for Human

• Verify with real valkey/redis: Tests use mocked Memory instances. Please test with an actual valkey/redis setup using the reproduction steps from issue [BUG] using external memory with mem0 and valkey (or redis) fails #4030 to confirm the fix works end-to-end
• Check docstring accuracy: The docstring at line 84-85 says "only user_id is included" when both are present, but the code actually includes both user_id and agent_id as an implicit AND. Verify this is the intended behavior
• Verify MemoryClient still works: The AND/OR filter format is preserved for MemoryClient - confirm cloud API users are not affected

Recommended Test Plan

1. Follow the reproduction steps from issue [BUG] using external memory with mem0 and valkey (or redis) fails #4030 with a local valkey/redis instance
2. Run crewai run with external memory configured with local_mem0_config and user_id
3. Verify no filter expression errors occur during memory search

Notes

• Link to Devin run: https://app.devin.ai/sessions/77dbc30d81954e228c49343a42abc731
• Requested by: João ([email protected])

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