"Feature Request: Agent Session Tracking for Multi-Tool Operations"

## Problem
When agents use multiple tools, telemetry shows them as "idle" between tool calls, making it impossible to:

• Track total agent session duration
• Calculate aggregate token usage for the entire agent task
• Know when an agent is truly complete vs waiting between tools

## Current Behavior
Agent Start → Tool 1 → [Shows IDLE] → Tool 2 → [Shows IDLE] → Agent Complete
Each tool fires separate completion events with no session correlation.

## Requested Feature
Add agent session tracking that:

1. Assigns a unique session_id when an agent starts
2. Maintains this ID across all tool calls within that agent's task
3. Emits an "agent_complete" event with total metrics:

• Total tokens used (sum of all tools)
• Total duration
• Tool count
• Agent name/type

## Use Case
Building dashboards to monitor agent performance and resource usage in multi-agent systems and to better implement optimization for token usage per agent.