# wpfunnels/3.13.1/includes/core/MCP/Observability/FunnelMcpObservabilityHandler.php

WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell, version 3.13.1. 58 lines.

- Page: https://pluginprobe.com/plugins/wpfunnels/3.13.1/code/includes/core/MCP/Observability/FunnelMcpObservabilityHandler.php
- Raw: https://pluginprobe.com/plugins/wpfunnels/3.13.1/raw/includes/core/MCP/Observability/FunnelMcpObservabilityHandler.php
- Modified: 2026-09-01T03:25:36+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/wpfunnels/3.13.1/code/includes/core/MCP/Observability/FunnelMcpObservabilityHandler.php#L10-L20`.

```php
<?php
/**
 * FunnelMcpObservabilityHandler — observability sink for the WPFunnels MCP server.
 *
 * Wraps the adapter's error-log handler and drops the events that the adapter
 * emits while building the server, keeping only the events that describe
 * something a site owner would actually want in an audit trail.
 *
 * @package WPFunnels\MCP\Observability
 * @since 3.13.0
 */

namespace WPFunnels\MCP\Observability;

defined( 'ABSPATH' ) || exit;

use WP\MCP\Infrastructure\Observability\ErrorLogMcpObservabilityHandler as AdapterErrorLogHandler;

/**
 * Class FunnelMcpObservabilityHandler
 *
 * Logs MCP tool traffic without the per-request lifecycle noise.
 */
class FunnelMcpObservabilityHandler extends AdapterErrorLogHandler {

	/**
	 * Events the adapter emits as a side effect of constructing the server,
	 * whether or not anyone is using MCP.
	 *
	 * The adapter builds every registered server on `rest_api_init`, so passing
	 * these through to error_log() writes one line per REST request on every
	 * site — hundreds of thousands of lines on a busy store, none of them
	 * actionable. Tool traffic (`mcp.request`) is still logged.
	 *
	 * @var string[]
	 */
	private const LIFECYCLE_EVENTS = array(
		'mcp.server.created',
		'mcp.component.registration',
	);

	/**
	 * Record an event unless it is per-request lifecycle noise.
	 *
	 * @param string     $event       The event name to record.
	 * @param array      $tags        Optional tags to attach to the event.
	 * @param float|null $duration_ms Optional duration in milliseconds.
	 * @return void
	 */
	public function record_event( string $event, array $tags = array(), ?float $duration_ms = null ): void {
		if ( in_array( self::format_metric_name( $event ), self::LIFECYCLE_EVENTS, true ) ) {
			return;
		}

		parent::record_event( $event, $tags, $duration_ms );
	}
}

```