The Pyrana harness implements native tool calling through LiteLLM in the orchestration layer so that action agents can execute tool-driven LLM loops within the platform runtime.

implements native tool calling via LiteLLM

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

`pyrana_services/orchestration/harness/pyrana_harness.py`

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

PyranaHarness.execute(config, workflow_input)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md