[Release] crewaiInc/crewAI 1.9.1: 1.9.1

CrewAI 1.9.1 release introduces before and after tool call hooks in CrewAgentExecutor and adds structured outputs with response_format support across providers. The release includes bug fixes for tool-calling content handling and schema serialization.

Key Points

• •Implement before and after tool call hooks in CrewAgentExecutor for enhanced control over tool execution lifecycle
• •Add structured outputs support across multiple providers to enable consistent response formatting
• •Introduce response_format parameter support for better control over API response structures
• •Fix tool-calling content handling to ensure proper message and data flow during tool invocation
• •Correct schema serialization issues to prevent data corruption or mismatches in tool definitions
• •Release version 1.9.1 includes critical bug fixes and new hook mechanisms for advanced agent customization

Workflow Diagram

Concepts