Structured Agent Action Declaration With Parameter Binding

Open source framework for building agents that pre-express their planned actions, share their progress and can be interrupted by a human. [#opensource](https://github.com/portiaAI/portia-sdk-python)

Unique: Schema-driven action declaration with explicit parameter binding and validation, preventing agents from executing arbitrary code or invalid operations

vs others: More restrictive than function-calling APIs but provides stronger safety guarantees by limiting agents to pre-defined, validated actions