Function: createTelemetryBus()

function createTelemetryBus(config?): Promise<TelemetryBusInstance>;

Defined in: packages/core/src/observability/TelemetryBus.ts:343

Create an out-of-band telemetry bus for MCP Fusion.

The returned emit function is the TelemetrySink to pass to AttachOptions.telemetry. It broadcasts events as NDJSON to all connected TUI clients via IPC.

When no clients are connected, emit() is a no-op — zero overhead.

Parameters

Parameter	Type	Description
config?	TelemetryBusConfig	Optional configuration

Returns

Promise<TelemetryBusInstance>

A promise that resolves to the running bus instance

Example

import { createTelemetryBus } from '@vinkius-core/mcp-fusion/observability';

const bus = await createTelemetryBus();

// Pass to server attachment
registry.attachToServer(server, {
    contextFactory: createContext,
    telemetry: bus.emit,
});

// On shutdown
await bus.close();