A behaviour and macro for creating event handlers that subscribe to telemetry events.

Usage

defmodule MyApp.Handlers.AgentLogger do
  use SkillKit.Telemetry.Handler, events: [
    [:skill_kit, :agent, :turn, :stop]
  ]

  @impl true
  def handle_event([:skill_kit, :agent, :turn, :stop], measurements, metadata) do
    Logger.info("Turn completed in #{measurements.duration}ns for #{metadata.agent_name}")
    :ok
  end
end

The handler module becomes a GenServer that:

• Subscribes to the specified telemetry events on startup
• Calls handle_event/3 when events are emitted
• Can be added to a supervision tree