feat: NeMo Agent Toolkit telemetry exporter (clawmetry-nat)

[vivekchand]

Python exporter plugin for NVIDIA NeMo Agent Toolkit. Maps NAT workflow events to ClawMetry brain event format. Publish to PyPI as clawmetry-nat.

Overview

Implement a ClawMetryNATExporter that bridges NVIDIA NeMo Agent Toolkit (NAT) workflow events to ClawMetry's observability pipeline.

Event Mapping

• NAT task_start → ClawMetry session start event
• NAT llm_call / LLM_START → ClawMetry turn event with token counts
• NAT tool_call / TOOL_START → ClawMetry tool event
• NAT task_end → ClawMetry session end with cost summary

Package

• Package name: clawmetry-nat
• Version: 0.1.0
• Standalone: works as NAT telemetry plugin OR standalone JSONL exporter

Config

Env vars: CLAWMETRY_URL, CLAWMETRY_API_KEY