Method OnToolsChanged

pkg/runtime/runtime.go:1396–1410

OnToolsChanged registers a handler that is called when an MCP toolset reports a tool list change outside of a RunStream. This allows the UI to update the tool count immediately.

(handler func(Event))

// reports a tool list change outside of a RunStream. This allows the UI
// to update the tool count immediately.
func (r *LocalRuntime) OnToolsChanged(handler func(Event)) {
	r.onToolsChanged = handler

	for _, name := range r.team.AgentNames() {
		a, err := r.team.Agent(name)
		if err != nil {
			continue
		}
		for _, ts := range a.ToolSets() {
			if n, ok := tools.As[tools.ChangeNotifier](ts); ok {
				n.SetToolsChangedHandler(r.emitToolsChanged)
			}
		}
	}
}

// emitToolsChanged is the callback registered on MCP toolsets. It re-reads
// the current agent's full tool list and pushes a ToolsetInfo event.