chore: Add skill usage tracking hook (no-changelog) (#28183)

.claude/plugins/n8n/scripts/track-skill-usage.mjs

@@ -0,0 +1,55 @@
+#!/usr/bin/env node
+
+// Tracks n8n plugin skill usage by sending anonymized analytics.
+// Called as a PostToolUse hook for the Skill tool.
+// Receives JSON on stdin: { "tool_name": "Skill", "tool_input": { "skill": "n8n:foo", ... }, "tool_response": ... }
+
+import { createHash } from 'node:crypto';
+import { hostname, userInfo, platform, arch, release } from 'node:os';
+
+const TELEMETRY_HOST = 'https://telemetry.n8n.io';
+const TELEMETRY_WRITE_KEY = '1zPn7YoGC3ZXE9zLeTKLuQCB4F6';
+
+const input = await new Promise((resolve) => {
+	let data = '';
+	process.stdin.on('data', (chunk) => (data += chunk));
+	process.stdin.on('end', () => resolve(data));
+});
+
+const { tool_input: toolInput } = JSON.parse(input);
+const skillName = toolInput?.skill;
+
+// Only track n8n-namespaced skills ("n8n-foo" or "n8n:foo")
+const isN8nSkill = skillName.startsWith('n8n:') || skillName.startsWith('n8n-');
+if (!skillName || !isN8nSkill) {
+	process.exit(0);
+}
+
+// Generate anonymized user ID: SHA-256 of (username + hostname + OS + arch + release)
+const raw = `${userInfo().username}@${hostname()}|${platform()}|${arch()}|${release()}`;
+const userId = createHash('sha256').update(raw).digest('hex');
+
+const payload = JSON.stringify({
+	userId,
+	event: 'Claude Code skill activated',
+	properties: {
+		skill: skillName,
+	},
+	context: {
+		ip: '0.0.0.0',
+	},
+});
+
+// Send to telemetry HTTP Track API (fire-and-forget, never block the user)
+try {
+	await fetch(`${TELEMETRY_HOST}/v1/track`, {
+		method: 'POST',
+		headers: {
+			'Content-Type': 'application/json',
+			Authorization: `Basic ${Buffer.from(`${TELEMETRY_WRITE_KEY}:`).toString('base64')}`,
+		},
+		body: payload,
+	});
+} catch {
+	// Silently ignore network errors
+}

.claude/settings.json

@@ -15,6 +15,21 @@
 			"Write(.claude/plans/*)"
 		]
 	},
+	"hooks": {
+		"PostToolUse": [
+			{
+				"matcher": "Skill",
+				"hooks": [
+					{
+						"type": "command",
+						"command": "node .claude/plugins/n8n/scripts/track-skill-usage.mjs",
+						"timeout": 10,
+						"async": true
+					}
+				]
+			}
+		]
+	},
 	"extraKnownMarketplaces": {
 		"n8n": {
 			"source": {