@apideck/agent-analytics - npm Package Compare versions

Comparing version 0.7.0 to 0.8.0

dist/types-a_qWvt3v.d.cts

+interface CaptureEvent {
+    event: string;
+    distinctId: string;
+    timestamp: string;
+    properties: Record<string, unknown>;
+}
+interface AnalyticsAdapter {
+    capture(event: CaptureEvent): Promise<void> | void;
+}
+interface TrackVisitOptions {
+    analytics: AnalyticsAdapter;
+    /**
+     * Label describing how the request arrived (e.g. `'page-view'`, `'md-suffix'`,
+     * `'ua-rewrite'`). Emitted as a `source` property on the captured event so
+     * you can segment by channel.
+     */
+    source?: string;
+    /**
+     * Event name. Defaults to `'agent_visit'`.
+     */
+    eventName?: string;
+    /**
+     * When `true`, skip capture unless the request UA matches the built-in AI
+     * bot pattern. Defaults to `false`, which captures every request (including
+     * coding-agent traffic that uses HTTP-library UAs like axios or curl).
+     */
+    onlyBots?: boolean;
+    /**
+     * When `true`, capture AI bots and coding agents (HTTP clients like axios,
+     * curl, node-fetch) but skip regular browsers. Use this when client-side
+     * analytics already handles browser traffic. Defaults to `false`.
+     */
+    skipBrowsers?: boolean;
+    /**
+     * Extra properties merged into the captured event. Useful for tagging the
+     * site (`{ site: 'docs' }`) or any other dimension.
+     */
+    properties?: Record<string, unknown>;
+    /**
+     * Override the origin used for `$current_url`. Defaults to the request URL's
+     * origin.
+     */
+    origin?: string;
+    /**
+     * When `true`, emit the raw `client_ip` (first hop of `x-forwarded-for`) on
+     * the event. Off by default — the IP is always hashed into `distinctId`,
+     * but the raw value is only useful for log-style exports (e.g. Peec.ai's
+     * crawl-insights CSV) and carries privacy implications.
+     */
+    captureIp?: boolean;
+}
+
+export type { AnalyticsAdapter as A, CaptureEvent as C, TrackVisitOptions as T };

dist/types-a_qWvt3v.d.ts

+interface CaptureEvent {
+    event: string;
+    distinctId: string;
+    timestamp: string;
+    properties: Record<string, unknown>;
+}
+interface AnalyticsAdapter {
+    capture(event: CaptureEvent): Promise<void> | void;
+}
+interface TrackVisitOptions {
+    analytics: AnalyticsAdapter;
+    /**
+     * Label describing how the request arrived (e.g. `'page-view'`, `'md-suffix'`,
+     * `'ua-rewrite'`). Emitted as a `source` property on the captured event so
+     * you can segment by channel.
+     */
+    source?: string;
+    /**
+     * Event name. Defaults to `'agent_visit'`.
+     */
+    eventName?: string;
+    /**
+     * When `true`, skip capture unless the request UA matches the built-in AI
+     * bot pattern. Defaults to `false`, which captures every request (including
+     * coding-agent traffic that uses HTTP-library UAs like axios or curl).
+     */
+    onlyBots?: boolean;
+    /**
+     * When `true`, capture AI bots and coding agents (HTTP clients like axios,
+     * curl, node-fetch) but skip regular browsers. Use this when client-side
+     * analytics already handles browser traffic. Defaults to `false`.
+     */
+    skipBrowsers?: boolean;
+    /**
+     * Extra properties merged into the captured event. Useful for tagging the
+     * site (`{ site: 'docs' }`) or any other dimension.
+     */
+    properties?: Record<string, unknown>;
+    /**
+     * Override the origin used for `$current_url`. Defaults to the request URL's
+     * origin.
+     */
+    origin?: string;
+    /**
+     * When `true`, emit the raw `client_ip` (first hop of `x-forwarded-for`) on
+     * the event. Off by default — the IP is always hashed into `distinctId`,
+     * but the raw value is only useful for log-style exports (e.g. Peec.ai's
+     * crawl-insights CSV) and carries privacy implications.
+     */
+    captureIp?: boolean;
+}
+
+export type { AnalyticsAdapter as A, CaptureEvent as C, TrackVisitOptions as T };

dist/adapters/posthog.d.cts

@@ -1,2 +0,2 @@
-import { A as AnalyticsAdapter } from '../types--odwdYFT.cjs';
+import { A as AnalyticsAdapter } from '../types-a_qWvt3v.cjs';
 
@@ -3,0 +3,0 @@ interface PostHogAdapterConfig {

dist/adapters/posthog.d.ts

@@ -1,2 +0,2 @@
-import { A as AnalyticsAdapter } from '../types--odwdYFT.js';
+import { A as AnalyticsAdapter } from '../types-a_qWvt3v.js';
 
@@ -3,0 +3,0 @@ interface PostHogAdapterConfig {

dist/adapters/webhook.d.cts

@@ -1,2 +0,2 @@
-import { C as CaptureEvent, A as AnalyticsAdapter } from '../types--odwdYFT.cjs';
+import { C as CaptureEvent, A as AnalyticsAdapter } from '../types-a_qWvt3v.cjs';
 
@@ -3,0 +3,0 @@ interface WebhookAdapterConfig {

dist/adapters/webhook.d.ts

@@ -1,2 +0,2 @@
-import { C as CaptureEvent, A as AnalyticsAdapter } from '../types--odwdYFT.js';
+import { C as CaptureEvent, A as AnalyticsAdapter } from '../types-a_qWvt3v.js';
 
@@ -3,0 +3,0 @@ interface WebhookAdapterConfig {

dist/index.cjs

@@ -173,2 +173,3 @@ 'use strict';
   const referer = req.headers.get("referer");
+  const country = req.headers.get("x-vercel-ip-country") || req.headers.get("cf-ipcountry") || req.headers.get("x-country-code") || null;
   const classification = classifyRequest(req);
@@ -183,2 +184,5 @@ const event = {
       path: pathname,
+      method: req.method,
+      country_code: country,
+      ...opts.captureIp ? { client_ip: ip || null } : {},
       user_agent: userAgent,
@@ -185,0 +189,0 @@ is_ai_bot: classification.isAiBot,

dist/index.cjs.map

@@ -1,1 +0,1 @@
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* User-agent substrings that identify **publicly declared** AI crawlers — the\n * branded bots that identify themselves by name (OpenAI's GPTBot, Anthropic's\n * ClaudeBot, Perplexity-User, Google-Extended, etc.). High-confidence: when\n * this matches, the request almost certainly comes from that vendor's crawler\n * fleet.\n *\n * Does NOT include **coding-agent traffic** (Claude Code, Cline, Cursor,\n * Windsurf, Aider, OpenCode, VS Code). Those tools use generic HTTP library\n * UAs (axios, curl, got, colly, Electron) or spoof full browser UAs — they\n * can't be distinguished from non-AI traffic by UA alone. See\n * {@link HTTP_CLIENT_PATTERN} for the loose heuristic layer.\n *\n * Sources consulted when updating: darkvisitors.com, vendor docs from OpenAI,\n * Anthropic, Google, Perplexity, Cohere, Apple, Bytedance.\n */\nexport const AI_BOT_PATTERN =\n  /ClaudeBot|Claude-User|Anthropic|ChatGPT-User|GPTBot|OAI-SearchBot|PerplexityBot|Perplexity-User|Google-Extended|Applebot-Extended|cohere-ai|Bytespider|CCBot|Amazonbot|Meta-ExternalAgent|FacebookBot|DuckAssistBot|MistralAI-User|YouBot|AI2Bot|Diffbot|Cursor|Windsurf/i\n\n/**\n * HTTP library / runtime signatures frequently used by coding agents. Matching\n * any of these is a **loose** signal — legitimate curl scripts, CI jobs, and\n * server-to-server traffic use the same libraries. Use this for the wider\n * net (`coding_agent_hint: true`) and pair with other signals (request\n * shape, JA4 fingerprint, path patterns) for higher confidence.\n *\n * Based on behavioural signatures observed by Addy Osmani:\n *   Claude Code  → axios/1.8.4\n *   Cline, Junie → curl/8.4.0\n *   Cursor       → got (sindresorhus/got)\n *   Windsurf     → colly\n *   VS Code      → Electron / Chromium\n *\n * Aider and OpenCode use Playwright-driven full Mozilla/Safari UAs and are\n * indistinguishable from real browsers at the UA layer.\n */\nexport const HTTP_CLIENT_PATTERN =\n  /axios\\/|curl\\/|(?:^|[\\s(])got(?:\\/|[\\s(])|\\bcolly\\b|Electron\\/|node-fetch\\/|python-requests\\/|Go-http-client\\/|okhttp\\/|aiohttp\\/|Deno\\//i\n\nexport function isAiBot(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return AI_BOT_PATTERN.test(userAgent)\n}\n\nexport function isHttpClient(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return HTTP_CLIENT_PATTERN.test(userAgent)\n}\n\n/**\n * Map a user-agent string to a coarse, human-readable label. Returns one of:\n *\n * - A branded-crawler name (`'Claude'`, `'ChatGPT'`, …) — pair with\n *   {@link isAiBot} for `is_ai_bot: true` segmentation.\n * - An HTTP-library name (`'curl'`, `'axios'`, `'got'`, `'colly'`,\n *   `'Electron'`, …) — hint of a coding agent or automation; not\n *   conclusive. Pair with {@link isHttpClient}.\n * - `'Browser'` for typical desktop browsers (possibly spoofed by\n *   Playwright-based agents like Aider/OpenCode — this label alone can't\n *   tell you).\n * - `'Other'` for anything unrecognised or empty input.\n */\nexport function parseBotName(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const s = userAgent.toLowerCase()\n\n  // Publicly declared AI crawlers (high confidence).\n  if (s.includes('chatgpt-user') || s.includes('gptbot') || s.includes('oai-searchbot') || s.includes('openai'))\n    return 'ChatGPT'\n  if (s.includes('claudebot') || s.includes('claude-user') || s.includes('anthropic')) return 'Claude'\n  if (s.includes('perplexitybot') || s.includes('perplexity-user')) return 'Perplexity'\n  if (s.includes('ccbot')) return 'Common Crawl'\n  if (s.includes('google-extended') || s.includes('googlebot')) return 'Google'\n  if (s.includes('applebot-extended') || s.includes('applebot')) return 'Apple'\n  if (s.includes('bingbot')) return 'Bing'\n  if (s.includes('bytespider')) return 'Bytespider'\n  if (s.includes('amazonbot')) return 'Amazon'\n  if (s.includes('meta-externalagent') || s.includes('facebookbot')) return 'Meta'\n  if (s.includes('mistralai-user')) return 'Mistral'\n  if (s.includes('duckassistbot')) return 'DuckDuckGo'\n  if (s.includes('youbot')) return 'You.com'\n  if (s.includes('diffbot')) return 'Diffbot'\n  if (s.includes('ai2bot')) return 'AI2'\n  if (s.includes('cohere')) return 'Cohere'\n  if (s.includes('cursor')) return 'Cursor'\n  if (s.includes('windsurf')) return 'Windsurf'\n  if (s.includes('petalbot')) return 'PetalBot'\n\n  // SEO crawlers and monitoring bots.\n  if (s.includes('ahrefsbot')) return 'Ahrefs'\n  if (s.includes('semrushbot')) return 'Semrush'\n  if (s.includes('mj12bot')) return 'Majestic'\n  if (s.includes('dotbot')) return 'Moz'\n  if (s.includes('rogerbot')) return 'Moz'\n  if (s.includes('screaming frog')) return 'Screaming Frog'\n  if (s.includes('sitebulb')) return 'Sitebulb'\n  if (s.includes('linkfluence')) return 'Linkfluence'\n  if (s.includes('dataforseo')) return 'DataForSEO'\n  if (s.includes('serpstatbot')) return 'Serpstat'\n\n  // Monitoring and feed bots.\n  if (s.includes('uptimerobot')) return 'UptimeRobot'\n  if (s.includes('pingdom')) return 'Pingdom'\n  if (s.includes('statuscake')) return 'StatusCake'\n  if (s.includes('newrelicpinger')) return 'New Relic'\n  if (s.includes('datadogagent') || s.includes('datadog')) return 'Datadog'\n  if (s.includes('slackbot')) return 'Slack'\n  if (s.includes('twitterbot')) return 'Twitter'\n  if (s.includes('linkedinbot')) return 'LinkedIn'\n  if (s.includes('discordbot')) return 'Discord'\n  if (s.includes('telegrambot')) return 'Telegram'\n  if (s.includes('whatsapp')) return 'WhatsApp'\n\n  // AI search and indexing bots.\n  if (s.includes('linkupbot')) return 'Linkup'\n  if (s.includes('sogou')) return 'Sogou'\n  if (s.includes('yandexbot')) return 'Yandex'\n  if (s.includes('baiduspider')) return 'Baidu'\n\n  // Link preview fetchers.\n  if (s.includes('facebookexternalhit')) return 'Facebook'\n  if (s.includes('com.apple.webkit')) return 'Apple URL Preview'\n\n  // Uptime and monitoring.\n  if (s.includes('ohdear')) return 'Oh Dear'\n\n  // Generic scrapers.\n  if (s.includes('scrapy')) return 'Scrapy'\n  if (s.includes('headlesschrome')) return 'Headless Chrome'\n  if (s.includes('phantomjs')) return 'PhantomJS'\n  if (s.includes('wget')) return 'wget'\n  if (s.includes('httpie')) return 'HTTPie'\n  if (s.includes('guzzlehttp')) return 'Guzzle'\n\n  // HTTP library / runtime signatures (loose — coding agent or automation).\n  // Check Electron before Browser since Electron UAs contain Chrome/Safari.\n  if (s.includes('electron/')) return 'Electron'\n  if (/curl\\//.test(s)) return 'curl'\n  if (/axios\\//.test(s)) return 'axios'\n  if (/(?:^|[\\s(])got(?:\\/|[\\s(])/.test(s)) return 'got'\n  if (/\\bcolly\\b/.test(s)) return 'colly'\n  if (/node-fetch\\//.test(s)) return 'node-fetch'\n  if (/python-requests\\//.test(s)) return 'python-requests'\n  if (/go-http-client\\//.test(s)) return 'Go http client'\n  if (/okhttp\\//.test(s)) return 'OkHttp'\n  if (/aiohttp\\//.test(s)) return 'aiohttp'\n  if (/deno\\//.test(s)) return 'Deno'\n\n  // Real browsers (or UAs spoofed to look like them — see Aider/OpenCode note).\n  if (s.includes('mozilla') || s.includes('chrome') || s.includes('safari') || s.includes('firefox'))\n    return 'Browser'\n\n  return 'Other'\n}\n\n/**\n * Return the first product token from a UA header, useful for segmenting by\n * client without hard-coding every bot name. Falls back to `'Other'` for empty\n * input.\n */\nexport function firstUserAgentProduct(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const compatibleMatch = userAgent.match(/compatible;\\s*([^/;\\s]+)(?:\\/[^\\s;]*)?/i)\n  if (compatibleMatch && compatibleMatch[1]) return compatibleMatch[1].trim()\n  const first = userAgent.trim().split('/')[0]?.trim().split(/\\s+/)[0]?.trim()\n  return first || 'Other'\n}\n\n/**\n * Detect likely headless/automated browsers by checking for missing headers\n * that real browsers always send. Playwright, Puppeteer, and similar tools\n * spoof the UA but often omit standard browser headers.\n *\n * Signals checked (each scores 1 point):\n * - Missing `Accept-Language` — every real browser sends this\n * - Missing `Sec-Fetch-Mode` — sent by all modern browsers\n * - Missing `Sec-CH-UA` — Client Hints, Chromium 89+\n * - `Sec-CH-UA` contains \"HeadlessChrome\"\n * - Missing or bare Accept header — browsers send detailed accept lists\n * - `Connection: close` with browser UA — browsers use keep-alive\n *\n * Returns a score (0-6), the signals that fired, and a boolean `likely`\n * flag (score >= 2 with a browser-like UA).\n */\nexport function detectHeadless(req: Request): HeadlessDetection {\n  const signals: string[] = []\n  const ua = (req.headers.get('user-agent') || '').toLowerCase()\n  const isBrowserUA =\n    ua.includes('mozilla') || ua.includes('chrome') || ua.includes('safari') || ua.includes('firefox')\n\n  if (!isBrowserUA) return { score: 0, signals: [], likely: false }\n\n  if (!req.headers.get('accept-language')) {\n    signals.push('missing-accept-language')\n  }\n  if (!req.headers.get('sec-fetch-mode')) {\n    signals.push('missing-sec-fetch-mode')\n  }\n  const secChUa = req.headers.get('sec-ch-ua')\n  if (!secChUa) {\n    signals.push('missing-sec-ch-ua')\n  } else if (secChUa.toLowerCase().includes('headlesschrome')) {\n    signals.push('headless-chrome-hint')\n  }\n  const accept = req.headers.get('accept') || ''\n  if (!accept || accept === '*/*') {\n    signals.push('missing-or-bare-accept')\n  }\n  if ((req.headers.get('connection') || '').toLowerCase() === 'close') {\n    signals.push('connection-close')\n  }\n\n  const score = signals.length\n  return { score, signals, likely: score >= 2 }\n}\n\nexport interface HeadlessDetection {\n  /** Number of suspicious signals found (0-6). */\n  score: number\n  /** Names of the specific signals that fired. */\n  signals: string[]\n  /** True when score >= 2 — strong headless indication. */\n  likely: boolean\n}\n\nexport type AgentKind =\n  | 'declared-crawler'\n  | 'coding-agent-hint'\n  | 'headless-likely'\n  | 'browser'\n  | 'other'\n\nexport interface AgentClassification {\n  /**\n   * Categorical tag for the request:\n   *\n   * - `'declared-crawler'` — {@link AI_BOT_PATTERN} matched. High confidence.\n   * - `'coding-agent-hint'` — {@link HTTP_CLIENT_PATTERN} matched. Loose\n   *   signal; could be a coding agent, a curl script, or any automation.\n   * - `'headless-likely'` — Browser-like UA but missing standard headers.\n   *   Strong signal of Playwright/Puppeteer automation (Aider, OpenCode, etc.).\n   * - `'browser'` — Looks like a real browser with expected headers present.\n   * - `'other'` — Unrecognised or empty.\n   */\n  kind: AgentKind\n  /** Human-readable label, same string {@link parseBotName} returns. */\n  label: string\n  /** Strict: `true` only when the UA matches a branded AI crawler. */\n  isAiBot: boolean\n  /** Loose: `true` for known HTTP-library / automation UAs. */\n  codingAgentHint: boolean\n  /** Headless browser detection result. Only populated when `req` is passed. */\n  headless?: HeadlessDetection\n}\n\n/**\n * UA-only classification. Use {@link classifyRequest} for full detection\n * including headless browser heuristics.\n */\nexport function classifyAgent(userAgent: string | null | undefined): AgentClassification {\n  const label = parseBotName(userAgent)\n  const aiBot = isAiBot(userAgent)\n  const httpClient = isHttpClient(userAgent)\n\n  let kind: AgentKind\n  if (aiBot) kind = 'declared-crawler'\n  else if (httpClient) kind = 'coding-agent-hint'\n  else if (label === 'Browser') kind = 'browser'\n  else kind = 'other'\n\n  return { kind, label, isAiBot: aiBot, codingAgentHint: httpClient }\n}\n\n/**\n * Full request classification — combines UA parsing with header-based\n * headless detection. When a browser-like UA is missing standard headers,\n * the kind is promoted from `'browser'` to `'headless-likely'`.\n */\nexport function classifyRequest(req: Request): AgentClassification {\n  const userAgent = req.headers.get('user-agent') || ''\n  const base = classifyAgent(userAgent)\n  const headless = detectHeadless(req)\n\n  let kind = base.kind\n  if (kind === 'browser' && headless.likely) {\n    kind = 'headless-likely'\n  }\n\n  return { ...base, kind, headless }\n}\n","/**\n * djb2 hash returning an 8-char hex string prefixed with `anon_`. Used to\n * build stable anonymous distinct-ids from `ip:ua:...` tuples without\n * collecting identifying data. Not cryptographic — collisions are fine for\n * analytics segmentation.\n */\nexport function hashId(input: string): string {\n  let h = 5381\n  for (let i = 0; i < input.length; i++) {\n    h = ((h << 5) + h + input.charCodeAt(i)) & 0xffffffff\n  }\n  return 'anon_' + (h >>> 0).toString(16)\n}\n","import { classifyRequest, detectHeadless, isAiBot, isHttpClient } from './bots.js'\nimport { hashId } from './hash.js'\nimport type { TrackVisitOptions } from './types.js'\n\n/**\n * Capture an event describing the incoming request. Fire-and-forget: awaits\n * the adapter but swallows errors so a downed analytics backend never breaks\n * the response path. Callers typically don't await the returned promise.\n *\n * By default, captures every request so coding-agent traffic (axios, curl,\n * Electron, …) shows up alongside branded crawlers. Set `onlyBots: true` to\n * restrict capture to UAs matching {@link AI_BOT_PATTERN}.\n */\nexport async function trackVisit(\n  req: Request,\n  opts: TrackVisitOptions\n): Promise<void> {\n  const userAgent = req.headers.get('user-agent') || ''\n\n  const onlyBots = opts.onlyBots ?? false\n  const skipBrowsers = opts.skipBrowsers ?? false\n  if (onlyBots && !isAiBot(userAgent)) return\n  if (skipBrowsers && !isAiBot(userAgent) && !isHttpClient(userAgent)) {\n    // Not a declared bot or HTTP client — check headless heuristics.\n    // Playwright-based agents (Aider, OpenCode) will pass if they're missing\n    // standard browser headers. Real browsers get skipped.\n    if (!detectHeadless(req).likely) return\n  }\n\n  let pathname = '/'\n  let originFromUrl = ''\n  try {\n    const url = new URL(req.url)\n    pathname = url.pathname\n    originFromUrl = url.origin\n  } catch {\n    // Some runtimes hand us a relative URL; fall back to the raw string.\n    pathname = req.url || '/'\n  }\n  const origin = opts.origin ?? originFromUrl\n\n  const forwardedFor = req.headers.get('x-forwarded-for') || ''\n  const ip = forwardedFor.split(',')[0]?.trim() ?? ''\n  const referer = req.headers.get('referer')\n  const classification = classifyRequest(req)\n\n  const event = {\n    event: opts.eventName ?? 'agent_visit',\n    distinctId: hashId(`${ip}:${userAgent}`),\n    timestamp: new Date().toISOString(),\n    properties: {\n      $process_person_profile: false,\n      $current_url: origin ? `${origin}${pathname}` : pathname,\n      path: pathname,\n      user_agent: userAgent,\n      is_ai_bot: classification.isAiBot,\n      bot_name: classification.label,\n      ua_category: classification.kind,\n      coding_agent_hint: classification.codingAgentHint,\n      headless_score: classification.headless?.score ?? 0,\n      headless_likely: classification.headless?.likely ?? false,\n      referer,\n      source: opts.source ?? null,\n      ...opts.properties\n    }\n  }\n\n  try {\n    await opts.analytics.capture(event)\n  } catch {\n    // Intentional swallow — analytics failures must not affect the response.\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface PostHogAdapterConfig {\n  /** PostHog project API key (the public one used by the JS SDK). */\n  apiKey: string\n  /**\n   * PostHog host, with or without scheme. Defaults to `https://us.i.posthog.com`.\n   * Use `https://eu.i.posthog.com` for EU cloud, or your own reverse-proxy\n   * domain (e.g. `https://svc.example.com`).\n   */\n  host?: string\n  /**\n   * Path on the host that accepts single-event captures. Defaults to\n   * `/i/v0/e/` which is PostHog's current endpoint for this.\n   */\n  path?: string\n  /**\n   * Override the `fetch` implementation (useful for tests or custom runtimes\n   * that need a pinned fetch).\n   */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that posts each event to the PostHog capture endpoint. Uses\n * `keepalive: true` so the request survives after a serverless response\n * returns — events aren't guaranteed (fire-and-forget), but that's the\n * trade we want to keep the hot path fast.\n */\nexport function posthogAnalytics(config: PostHogAdapterConfig): AnalyticsAdapter {\n  const hostRaw = config.host ?? 'https://us.i.posthog.com'\n  const base = (/^https?:\\/\\//.test(hostRaw) ? hostRaw : `https://${hostRaw}`).replace(/\\/$/, '')\n  const path = (config.path ?? '/i/v0/e/').replace(/^(?!\\/)/, '/')\n  const endpoint = `${base}${path}`\n  const fetchImpl = config.fetchImpl ?? fetch\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      const payload = {\n        api_key: config.apiKey,\n        event: event.event,\n        distinct_id: event.distinctId,\n        timestamp: event.timestamp,\n        properties: event.properties\n      }\n      await fetchImpl(endpoint, {\n        method: 'POST',\n        headers: { 'Content-Type': 'application/json' },\n        body: JSON.stringify(payload),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface WebhookAdapterConfig {\n  /** Destination URL that receives a POST for each event. */\n  url: string\n  /** Extra headers merged onto the POST (useful for shared-secret auth). */\n  headers?: Record<string, string>\n  /**\n   * Transform the event into the exact JSON body the destination expects.\n   * Defaults to sending the {@link CaptureEvent} as-is.\n   */\n  transform?: (event: CaptureEvent) => unknown\n  /** Override the `fetch` implementation. */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that POSTs each event to an arbitrary webhook URL. Keeps the\n * library analytics-backend-agnostic — use this when PostHog isn't your\n * analytics of record, or when you want to multiplex events through your\n * own ingestion layer.\n */\nexport function webhookAnalytics(config: WebhookAdapterConfig): AnalyticsAdapter {\n  const fetchImpl = config.fetchImpl ?? fetch\n  const transform = config.transform ?? ((e: CaptureEvent): unknown => e)\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      await fetchImpl(config.url, {\n        method: 'POST',\n        headers: {\n          'Content-Type': 'application/json',\n          ...(config.headers ?? {})\n        },\n        body: JSON.stringify(transform(event)),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\n/**\n * Escape hatch for wiring a callback directly as an analytics adapter.\n * Useful when you want to log events, pipe them through your own SDK, or\n * compose multiple adapters.\n *\n * @example\n * ```ts\n * const devAnalytics = customAnalytics((e) => console.log('[doc_view]', e))\n * ```\n */\nexport function customAnalytics(\n  capture: (event: CaptureEvent) => Promise<void> | void\n): AnalyticsAdapter {\n  return { capture }\n}\n"]}
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* User-agent substrings that identify **publicly declared** AI crawlers — the\n * branded bots that identify themselves by name (OpenAI's GPTBot, Anthropic's\n * ClaudeBot, Perplexity-User, Google-Extended, etc.). High-confidence: when\n * this matches, the request almost certainly comes from that vendor's crawler\n * fleet.\n *\n * Does NOT include **coding-agent traffic** (Claude Code, Cline, Cursor,\n * Windsurf, Aider, OpenCode, VS Code). Those tools use generic HTTP library\n * UAs (axios, curl, got, colly, Electron) or spoof full browser UAs — they\n * can't be distinguished from non-AI traffic by UA alone. See\n * {@link HTTP_CLIENT_PATTERN} for the loose heuristic layer.\n *\n * Sources consulted when updating: darkvisitors.com, vendor docs from OpenAI,\n * Anthropic, Google, Perplexity, Cohere, Apple, Bytedance.\n */\nexport const AI_BOT_PATTERN =\n  /ClaudeBot|Claude-User|Anthropic|ChatGPT-User|GPTBot|OAI-SearchBot|PerplexityBot|Perplexity-User|Google-Extended|Applebot-Extended|cohere-ai|Bytespider|CCBot|Amazonbot|Meta-ExternalAgent|FacebookBot|DuckAssistBot|MistralAI-User|YouBot|AI2Bot|Diffbot|Cursor|Windsurf/i\n\n/**\n * HTTP library / runtime signatures frequently used by coding agents. Matching\n * any of these is a **loose** signal — legitimate curl scripts, CI jobs, and\n * server-to-server traffic use the same libraries. Use this for the wider\n * net (`coding_agent_hint: true`) and pair with other signals (request\n * shape, JA4 fingerprint, path patterns) for higher confidence.\n *\n * Based on behavioural signatures observed by Addy Osmani:\n *   Claude Code  → axios/1.8.4\n *   Cline, Junie → curl/8.4.0\n *   Cursor       → got (sindresorhus/got)\n *   Windsurf     → colly\n *   VS Code      → Electron / Chromium\n *\n * Aider and OpenCode use Playwright-driven full Mozilla/Safari UAs and are\n * indistinguishable from real browsers at the UA layer.\n */\nexport const HTTP_CLIENT_PATTERN =\n  /axios\\/|curl\\/|(?:^|[\\s(])got(?:\\/|[\\s(])|\\bcolly\\b|Electron\\/|node-fetch\\/|python-requests\\/|Go-http-client\\/|okhttp\\/|aiohttp\\/|Deno\\//i\n\nexport function isAiBot(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return AI_BOT_PATTERN.test(userAgent)\n}\n\nexport function isHttpClient(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return HTTP_CLIENT_PATTERN.test(userAgent)\n}\n\n/**\n * Map a user-agent string to a coarse, human-readable label. Returns one of:\n *\n * - A branded-crawler name (`'Claude'`, `'ChatGPT'`, …) — pair with\n *   {@link isAiBot} for `is_ai_bot: true` segmentation.\n * - An HTTP-library name (`'curl'`, `'axios'`, `'got'`, `'colly'`,\n *   `'Electron'`, …) — hint of a coding agent or automation; not\n *   conclusive. Pair with {@link isHttpClient}.\n * - `'Browser'` for typical desktop browsers (possibly spoofed by\n *   Playwright-based agents like Aider/OpenCode — this label alone can't\n *   tell you).\n * - `'Other'` for anything unrecognised or empty input.\n */\nexport function parseBotName(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const s = userAgent.toLowerCase()\n\n  // Publicly declared AI crawlers (high confidence).\n  if (s.includes('chatgpt-user') || s.includes('gptbot') || s.includes('oai-searchbot') || s.includes('openai'))\n    return 'ChatGPT'\n  if (s.includes('claudebot') || s.includes('claude-user') || s.includes('anthropic')) return 'Claude'\n  if (s.includes('perplexitybot') || s.includes('perplexity-user')) return 'Perplexity'\n  if (s.includes('ccbot')) return 'Common Crawl'\n  if (s.includes('google-extended') || s.includes('googlebot')) return 'Google'\n  if (s.includes('applebot-extended') || s.includes('applebot')) return 'Apple'\n  if (s.includes('bingbot')) return 'Bing'\n  if (s.includes('bytespider')) return 'Bytespider'\n  if (s.includes('amazonbot')) return 'Amazon'\n  if (s.includes('meta-externalagent') || s.includes('facebookbot')) return 'Meta'\n  if (s.includes('mistralai-user')) return 'Mistral'\n  if (s.includes('duckassistbot')) return 'DuckDuckGo'\n  if (s.includes('youbot')) return 'You.com'\n  if (s.includes('diffbot')) return 'Diffbot'\n  if (s.includes('ai2bot')) return 'AI2'\n  if (s.includes('cohere')) return 'Cohere'\n  if (s.includes('cursor')) return 'Cursor'\n  if (s.includes('windsurf')) return 'Windsurf'\n  if (s.includes('petalbot')) return 'PetalBot'\n\n  // SEO crawlers and monitoring bots.\n  if (s.includes('ahrefsbot')) return 'Ahrefs'\n  if (s.includes('semrushbot')) return 'Semrush'\n  if (s.includes('mj12bot')) return 'Majestic'\n  if (s.includes('dotbot')) return 'Moz'\n  if (s.includes('rogerbot')) return 'Moz'\n  if (s.includes('screaming frog')) return 'Screaming Frog'\n  if (s.includes('sitebulb')) return 'Sitebulb'\n  if (s.includes('linkfluence')) return 'Linkfluence'\n  if (s.includes('dataforseo')) return 'DataForSEO'\n  if (s.includes('serpstatbot')) return 'Serpstat'\n\n  // Monitoring and feed bots.\n  if (s.includes('uptimerobot')) return 'UptimeRobot'\n  if (s.includes('pingdom')) return 'Pingdom'\n  if (s.includes('statuscake')) return 'StatusCake'\n  if (s.includes('newrelicpinger')) return 'New Relic'\n  if (s.includes('datadogagent') || s.includes('datadog')) return 'Datadog'\n  if (s.includes('slackbot')) return 'Slack'\n  if (s.includes('twitterbot')) return 'Twitter'\n  if (s.includes('linkedinbot')) return 'LinkedIn'\n  if (s.includes('discordbot')) return 'Discord'\n  if (s.includes('telegrambot')) return 'Telegram'\n  if (s.includes('whatsapp')) return 'WhatsApp'\n\n  // AI search and indexing bots.\n  if (s.includes('linkupbot')) return 'Linkup'\n  if (s.includes('sogou')) return 'Sogou'\n  if (s.includes('yandexbot')) return 'Yandex'\n  if (s.includes('baiduspider')) return 'Baidu'\n\n  // Link preview fetchers.\n  if (s.includes('facebookexternalhit')) return 'Facebook'\n  if (s.includes('com.apple.webkit')) return 'Apple URL Preview'\n\n  // Uptime and monitoring.\n  if (s.includes('ohdear')) return 'Oh Dear'\n\n  // Generic scrapers.\n  if (s.includes('scrapy')) return 'Scrapy'\n  if (s.includes('headlesschrome')) return 'Headless Chrome'\n  if (s.includes('phantomjs')) return 'PhantomJS'\n  if (s.includes('wget')) return 'wget'\n  if (s.includes('httpie')) return 'HTTPie'\n  if (s.includes('guzzlehttp')) return 'Guzzle'\n\n  // HTTP library / runtime signatures (loose — coding agent or automation).\n  // Check Electron before Browser since Electron UAs contain Chrome/Safari.\n  if (s.includes('electron/')) return 'Electron'\n  if (/curl\\//.test(s)) return 'curl'\n  if (/axios\\//.test(s)) return 'axios'\n  if (/(?:^|[\\s(])got(?:\\/|[\\s(])/.test(s)) return 'got'\n  if (/\\bcolly\\b/.test(s)) return 'colly'\n  if (/node-fetch\\//.test(s)) return 'node-fetch'\n  if (/python-requests\\//.test(s)) return 'python-requests'\n  if (/go-http-client\\//.test(s)) return 'Go http client'\n  if (/okhttp\\//.test(s)) return 'OkHttp'\n  if (/aiohttp\\//.test(s)) return 'aiohttp'\n  if (/deno\\//.test(s)) return 'Deno'\n\n  // Real browsers (or UAs spoofed to look like them — see Aider/OpenCode note).\n  if (s.includes('mozilla') || s.includes('chrome') || s.includes('safari') || s.includes('firefox'))\n    return 'Browser'\n\n  return 'Other'\n}\n\n/**\n * Return the first product token from a UA header, useful for segmenting by\n * client without hard-coding every bot name. Falls back to `'Other'` for empty\n * input.\n */\nexport function firstUserAgentProduct(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const compatibleMatch = userAgent.match(/compatible;\\s*([^/;\\s]+)(?:\\/[^\\s;]*)?/i)\n  if (compatibleMatch && compatibleMatch[1]) return compatibleMatch[1].trim()\n  const first = userAgent.trim().split('/')[0]?.trim().split(/\\s+/)[0]?.trim()\n  return first || 'Other'\n}\n\n/**\n * Detect likely headless/automated browsers by checking for missing headers\n * that real browsers always send. Playwright, Puppeteer, and similar tools\n * spoof the UA but often omit standard browser headers.\n *\n * Signals checked (each scores 1 point):\n * - Missing `Accept-Language` — every real browser sends this\n * - Missing `Sec-Fetch-Mode` — sent by all modern browsers\n * - Missing `Sec-CH-UA` — Client Hints, Chromium 89+\n * - `Sec-CH-UA` contains \"HeadlessChrome\"\n * - Missing or bare Accept header — browsers send detailed accept lists\n * - `Connection: close` with browser UA — browsers use keep-alive\n *\n * Returns a score (0-6), the signals that fired, and a boolean `likely`\n * flag (score >= 2 with a browser-like UA).\n */\nexport function detectHeadless(req: Request): HeadlessDetection {\n  const signals: string[] = []\n  const ua = (req.headers.get('user-agent') || '').toLowerCase()\n  const isBrowserUA =\n    ua.includes('mozilla') || ua.includes('chrome') || ua.includes('safari') || ua.includes('firefox')\n\n  if (!isBrowserUA) return { score: 0, signals: [], likely: false }\n\n  if (!req.headers.get('accept-language')) {\n    signals.push('missing-accept-language')\n  }\n  if (!req.headers.get('sec-fetch-mode')) {\n    signals.push('missing-sec-fetch-mode')\n  }\n  const secChUa = req.headers.get('sec-ch-ua')\n  if (!secChUa) {\n    signals.push('missing-sec-ch-ua')\n  } else if (secChUa.toLowerCase().includes('headlesschrome')) {\n    signals.push('headless-chrome-hint')\n  }\n  const accept = req.headers.get('accept') || ''\n  if (!accept || accept === '*/*') {\n    signals.push('missing-or-bare-accept')\n  }\n  if ((req.headers.get('connection') || '').toLowerCase() === 'close') {\n    signals.push('connection-close')\n  }\n\n  const score = signals.length\n  return { score, signals, likely: score >= 2 }\n}\n\nexport interface HeadlessDetection {\n  /** Number of suspicious signals found (0-6). */\n  score: number\n  /** Names of the specific signals that fired. */\n  signals: string[]\n  /** True when score >= 2 — strong headless indication. */\n  likely: boolean\n}\n\nexport type AgentKind =\n  | 'declared-crawler'\n  | 'coding-agent-hint'\n  | 'headless-likely'\n  | 'browser'\n  | 'other'\n\nexport interface AgentClassification {\n  /**\n   * Categorical tag for the request:\n   *\n   * - `'declared-crawler'` — {@link AI_BOT_PATTERN} matched. High confidence.\n   * - `'coding-agent-hint'` — {@link HTTP_CLIENT_PATTERN} matched. Loose\n   *   signal; could be a coding agent, a curl script, or any automation.\n   * - `'headless-likely'` — Browser-like UA but missing standard headers.\n   *   Strong signal of Playwright/Puppeteer automation (Aider, OpenCode, etc.).\n   * - `'browser'` — Looks like a real browser with expected headers present.\n   * - `'other'` — Unrecognised or empty.\n   */\n  kind: AgentKind\n  /** Human-readable label, same string {@link parseBotName} returns. */\n  label: string\n  /** Strict: `true` only when the UA matches a branded AI crawler. */\n  isAiBot: boolean\n  /** Loose: `true` for known HTTP-library / automation UAs. */\n  codingAgentHint: boolean\n  /** Headless browser detection result. Only populated when `req` is passed. */\n  headless?: HeadlessDetection\n}\n\n/**\n * UA-only classification. Use {@link classifyRequest} for full detection\n * including headless browser heuristics.\n */\nexport function classifyAgent(userAgent: string | null | undefined): AgentClassification {\n  const label = parseBotName(userAgent)\n  const aiBot = isAiBot(userAgent)\n  const httpClient = isHttpClient(userAgent)\n\n  let kind: AgentKind\n  if (aiBot) kind = 'declared-crawler'\n  else if (httpClient) kind = 'coding-agent-hint'\n  else if (label === 'Browser') kind = 'browser'\n  else kind = 'other'\n\n  return { kind, label, isAiBot: aiBot, codingAgentHint: httpClient }\n}\n\n/**\n * Full request classification — combines UA parsing with header-based\n * headless detection. When a browser-like UA is missing standard headers,\n * the kind is promoted from `'browser'` to `'headless-likely'`.\n */\nexport function classifyRequest(req: Request): AgentClassification {\n  const userAgent = req.headers.get('user-agent') || ''\n  const base = classifyAgent(userAgent)\n  const headless = detectHeadless(req)\n\n  let kind = base.kind\n  if (kind === 'browser' && headless.likely) {\n    kind = 'headless-likely'\n  }\n\n  return { ...base, kind, headless }\n}\n","/**\n * djb2 hash returning an 8-char hex string prefixed with `anon_`. Used to\n * build stable anonymous distinct-ids from `ip:ua:...` tuples without\n * collecting identifying data. Not cryptographic — collisions are fine for\n * analytics segmentation.\n */\nexport function hashId(input: string): string {\n  let h = 5381\n  for (let i = 0; i < input.length; i++) {\n    h = ((h << 5) + h + input.charCodeAt(i)) & 0xffffffff\n  }\n  return 'anon_' + (h >>> 0).toString(16)\n}\n","import { classifyRequest, detectHeadless, isAiBot, isHttpClient } from './bots.js'\nimport { hashId } from './hash.js'\nimport type { TrackVisitOptions } from './types.js'\n\n/**\n * Capture an event describing the incoming request. Fire-and-forget: awaits\n * the adapter but swallows errors so a downed analytics backend never breaks\n * the response path. Callers typically don't await the returned promise.\n *\n * By default, captures every request so coding-agent traffic (axios, curl,\n * Electron, …) shows up alongside branded crawlers. Set `onlyBots: true` to\n * restrict capture to UAs matching {@link AI_BOT_PATTERN}.\n */\nexport async function trackVisit(\n  req: Request,\n  opts: TrackVisitOptions\n): Promise<void> {\n  const userAgent = req.headers.get('user-agent') || ''\n\n  const onlyBots = opts.onlyBots ?? false\n  const skipBrowsers = opts.skipBrowsers ?? false\n  if (onlyBots && !isAiBot(userAgent)) return\n  if (skipBrowsers && !isAiBot(userAgent) && !isHttpClient(userAgent)) {\n    // Not a declared bot or HTTP client — check headless heuristics.\n    // Playwright-based agents (Aider, OpenCode) will pass if they're missing\n    // standard browser headers. Real browsers get skipped.\n    if (!detectHeadless(req).likely) return\n  }\n\n  let pathname = '/'\n  let originFromUrl = ''\n  try {\n    const url = new URL(req.url)\n    pathname = url.pathname\n    originFromUrl = url.origin\n  } catch {\n    // Some runtimes hand us a relative URL; fall back to the raw string.\n    pathname = req.url || '/'\n  }\n  const origin = opts.origin ?? originFromUrl\n\n  const forwardedFor = req.headers.get('x-forwarded-for') || ''\n  const ip = forwardedFor.split(',')[0]?.trim() ?? ''\n  const referer = req.headers.get('referer')\n  const country =\n    req.headers.get('x-vercel-ip-country') ||\n    req.headers.get('cf-ipcountry') ||\n    req.headers.get('x-country-code') ||\n    null\n  const classification = classifyRequest(req)\n\n  const event = {\n    event: opts.eventName ?? 'agent_visit',\n    distinctId: hashId(`${ip}:${userAgent}`),\n    timestamp: new Date().toISOString(),\n    properties: {\n      $process_person_profile: false,\n      $current_url: origin ? `${origin}${pathname}` : pathname,\n      path: pathname,\n      method: req.method,\n      country_code: country,\n      ...(opts.captureIp ? { client_ip: ip || null } : {}),\n      user_agent: userAgent,\n      is_ai_bot: classification.isAiBot,\n      bot_name: classification.label,\n      ua_category: classification.kind,\n      coding_agent_hint: classification.codingAgentHint,\n      headless_score: classification.headless?.score ?? 0,\n      headless_likely: classification.headless?.likely ?? false,\n      referer,\n      source: opts.source ?? null,\n      ...opts.properties\n    }\n  }\n\n  try {\n    await opts.analytics.capture(event)\n  } catch {\n    // Intentional swallow — analytics failures must not affect the response.\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface PostHogAdapterConfig {\n  /** PostHog project API key (the public one used by the JS SDK). */\n  apiKey: string\n  /**\n   * PostHog host, with or without scheme. Defaults to `https://us.i.posthog.com`.\n   * Use `https://eu.i.posthog.com` for EU cloud, or your own reverse-proxy\n   * domain (e.g. `https://svc.example.com`).\n   */\n  host?: string\n  /**\n   * Path on the host that accepts single-event captures. Defaults to\n   * `/i/v0/e/` which is PostHog's current endpoint for this.\n   */\n  path?: string\n  /**\n   * Override the `fetch` implementation (useful for tests or custom runtimes\n   * that need a pinned fetch).\n   */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that posts each event to the PostHog capture endpoint. Uses\n * `keepalive: true` so the request survives after a serverless response\n * returns — events aren't guaranteed (fire-and-forget), but that's the\n * trade we want to keep the hot path fast.\n */\nexport function posthogAnalytics(config: PostHogAdapterConfig): AnalyticsAdapter {\n  const hostRaw = config.host ?? 'https://us.i.posthog.com'\n  const base = (/^https?:\\/\\//.test(hostRaw) ? hostRaw : `https://${hostRaw}`).replace(/\\/$/, '')\n  const path = (config.path ?? '/i/v0/e/').replace(/^(?!\\/)/, '/')\n  const endpoint = `${base}${path}`\n  const fetchImpl = config.fetchImpl ?? fetch\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      const payload = {\n        api_key: config.apiKey,\n        event: event.event,\n        distinct_id: event.distinctId,\n        timestamp: event.timestamp,\n        properties: event.properties\n      }\n      await fetchImpl(endpoint, {\n        method: 'POST',\n        headers: { 'Content-Type': 'application/json' },\n        body: JSON.stringify(payload),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface WebhookAdapterConfig {\n  /** Destination URL that receives a POST for each event. */\n  url: string\n  /** Extra headers merged onto the POST (useful for shared-secret auth). */\n  headers?: Record<string, string>\n  /**\n   * Transform the event into the exact JSON body the destination expects.\n   * Defaults to sending the {@link CaptureEvent} as-is.\n   */\n  transform?: (event: CaptureEvent) => unknown\n  /** Override the `fetch` implementation. */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that POSTs each event to an arbitrary webhook URL. Keeps the\n * library analytics-backend-agnostic — use this when PostHog isn't your\n * analytics of record, or when you want to multiplex events through your\n * own ingestion layer.\n */\nexport function webhookAnalytics(config: WebhookAdapterConfig): AnalyticsAdapter {\n  const fetchImpl = config.fetchImpl ?? fetch\n  const transform = config.transform ?? ((e: CaptureEvent): unknown => e)\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      await fetchImpl(config.url, {\n        method: 'POST',\n        headers: {\n          'Content-Type': 'application/json',\n          ...(config.headers ?? {})\n        },\n        body: JSON.stringify(transform(event)),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\n/**\n * Escape hatch for wiring a callback directly as an analytics adapter.\n * Useful when you want to log events, pipe them through your own SDK, or\n * compose multiple adapters.\n *\n * @example\n * ```ts\n * const devAnalytics = customAnalytics((e) => console.log('[doc_view]', e))\n * ```\n */\nexport function customAnalytics(\n  capture: (event: CaptureEvent) => Promise<void> | void\n): AnalyticsAdapter {\n  return { capture }\n}\n"]}

dist/index.d.cts

@@ -1,2 +0,2 @@
-import { T as TrackVisitOptions, C as CaptureEvent, A as AnalyticsAdapter } from './types--odwdYFT.cjs';
+import { T as TrackVisitOptions, C as CaptureEvent, A as AnalyticsAdapter } from './types-a_qWvt3v.cjs';
 export { posthogAnalytics } from './adapters/posthog.cjs';
@@ -3,0 +3,0 @@ export { webhookAnalytics } from './adapters/webhook.cjs';

dist/index.d.ts

@@ -1,2 +0,2 @@
-import { T as TrackVisitOptions, C as CaptureEvent, A as AnalyticsAdapter } from './types--odwdYFT.js';
+import { T as TrackVisitOptions, C as CaptureEvent, A as AnalyticsAdapter } from './types-a_qWvt3v.js';
 export { posthogAnalytics } from './adapters/posthog.js';
@@ -3,0 +3,0 @@ export { webhookAnalytics } from './adapters/webhook.js';

dist/index.js

@@ -171,2 +171,3 @@ // src/bots.ts
   const referer = req.headers.get("referer");
+  const country = req.headers.get("x-vercel-ip-country") || req.headers.get("cf-ipcountry") || req.headers.get("x-country-code") || null;
   const classification = classifyRequest(req);
@@ -181,2 +182,5 @@ const event = {
       path: pathname,
+      method: req.method,
+      country_code: country,
+      ...opts.captureIp ? { client_ip: ip || null } : {},
       user_agent: userAgent,
@@ -183,0 +187,0 @@ is_ai_bot: classification.isAiBot,

dist/index.js.map

@@ -1,1 +0,1 @@
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* User-agent substrings that identify **publicly declared** AI crawlers — the\n * branded bots that identify themselves by name (OpenAI's GPTBot, Anthropic's\n * ClaudeBot, Perplexity-User, Google-Extended, etc.). High-confidence: when\n * this matches, the request almost certainly comes from that vendor's crawler\n * fleet.\n *\n * Does NOT include **coding-agent traffic** (Claude Code, Cline, Cursor,\n * Windsurf, Aider, OpenCode, VS Code). Those tools use generic HTTP library\n * UAs (axios, curl, got, colly, Electron) or spoof full browser UAs — they\n * can't be distinguished from non-AI traffic by UA alone. See\n * {@link HTTP_CLIENT_PATTERN} for the loose heuristic layer.\n *\n * Sources consulted when updating: darkvisitors.com, vendor docs from OpenAI,\n * Anthropic, Google, Perplexity, Cohere, Apple, Bytedance.\n */\nexport const AI_BOT_PATTERN =\n  /ClaudeBot|Claude-User|Anthropic|ChatGPT-User|GPTBot|OAI-SearchBot|PerplexityBot|Perplexity-User|Google-Extended|Applebot-Extended|cohere-ai|Bytespider|CCBot|Amazonbot|Meta-ExternalAgent|FacebookBot|DuckAssistBot|MistralAI-User|YouBot|AI2Bot|Diffbot|Cursor|Windsurf/i\n\n/**\n * HTTP library / runtime signatures frequently used by coding agents. Matching\n * any of these is a **loose** signal — legitimate curl scripts, CI jobs, and\n * server-to-server traffic use the same libraries. Use this for the wider\n * net (`coding_agent_hint: true`) and pair with other signals (request\n * shape, JA4 fingerprint, path patterns) for higher confidence.\n *\n * Based on behavioural signatures observed by Addy Osmani:\n *   Claude Code  → axios/1.8.4\n *   Cline, Junie → curl/8.4.0\n *   Cursor       → got (sindresorhus/got)\n *   Windsurf     → colly\n *   VS Code      → Electron / Chromium\n *\n * Aider and OpenCode use Playwright-driven full Mozilla/Safari UAs and are\n * indistinguishable from real browsers at the UA layer.\n */\nexport const HTTP_CLIENT_PATTERN =\n  /axios\\/|curl\\/|(?:^|[\\s(])got(?:\\/|[\\s(])|\\bcolly\\b|Electron\\/|node-fetch\\/|python-requests\\/|Go-http-client\\/|okhttp\\/|aiohttp\\/|Deno\\//i\n\nexport function isAiBot(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return AI_BOT_PATTERN.test(userAgent)\n}\n\nexport function isHttpClient(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return HTTP_CLIENT_PATTERN.test(userAgent)\n}\n\n/**\n * Map a user-agent string to a coarse, human-readable label. Returns one of:\n *\n * - A branded-crawler name (`'Claude'`, `'ChatGPT'`, …) — pair with\n *   {@link isAiBot} for `is_ai_bot: true` segmentation.\n * - An HTTP-library name (`'curl'`, `'axios'`, `'got'`, `'colly'`,\n *   `'Electron'`, …) — hint of a coding agent or automation; not\n *   conclusive. Pair with {@link isHttpClient}.\n * - `'Browser'` for typical desktop browsers (possibly spoofed by\n *   Playwright-based agents like Aider/OpenCode — this label alone can't\n *   tell you).\n * - `'Other'` for anything unrecognised or empty input.\n */\nexport function parseBotName(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const s = userAgent.toLowerCase()\n\n  // Publicly declared AI crawlers (high confidence).\n  if (s.includes('chatgpt-user') || s.includes('gptbot') || s.includes('oai-searchbot') || s.includes('openai'))\n    return 'ChatGPT'\n  if (s.includes('claudebot') || s.includes('claude-user') || s.includes('anthropic')) return 'Claude'\n  if (s.includes('perplexitybot') || s.includes('perplexity-user')) return 'Perplexity'\n  if (s.includes('ccbot')) return 'Common Crawl'\n  if (s.includes('google-extended') || s.includes('googlebot')) return 'Google'\n  if (s.includes('applebot-extended') || s.includes('applebot')) return 'Apple'\n  if (s.includes('bingbot')) return 'Bing'\n  if (s.includes('bytespider')) return 'Bytespider'\n  if (s.includes('amazonbot')) return 'Amazon'\n  if (s.includes('meta-externalagent') || s.includes('facebookbot')) return 'Meta'\n  if (s.includes('mistralai-user')) return 'Mistral'\n  if (s.includes('duckassistbot')) return 'DuckDuckGo'\n  if (s.includes('youbot')) return 'You.com'\n  if (s.includes('diffbot')) return 'Diffbot'\n  if (s.includes('ai2bot')) return 'AI2'\n  if (s.includes('cohere')) return 'Cohere'\n  if (s.includes('cursor')) return 'Cursor'\n  if (s.includes('windsurf')) return 'Windsurf'\n  if (s.includes('petalbot')) return 'PetalBot'\n\n  // SEO crawlers and monitoring bots.\n  if (s.includes('ahrefsbot')) return 'Ahrefs'\n  if (s.includes('semrushbot')) return 'Semrush'\n  if (s.includes('mj12bot')) return 'Majestic'\n  if (s.includes('dotbot')) return 'Moz'\n  if (s.includes('rogerbot')) return 'Moz'\n  if (s.includes('screaming frog')) return 'Screaming Frog'\n  if (s.includes('sitebulb')) return 'Sitebulb'\n  if (s.includes('linkfluence')) return 'Linkfluence'\n  if (s.includes('dataforseo')) return 'DataForSEO'\n  if (s.includes('serpstatbot')) return 'Serpstat'\n\n  // Monitoring and feed bots.\n  if (s.includes('uptimerobot')) return 'UptimeRobot'\n  if (s.includes('pingdom')) return 'Pingdom'\n  if (s.includes('statuscake')) return 'StatusCake'\n  if (s.includes('newrelicpinger')) return 'New Relic'\n  if (s.includes('datadogagent') || s.includes('datadog')) return 'Datadog'\n  if (s.includes('slackbot')) return 'Slack'\n  if (s.includes('twitterbot')) return 'Twitter'\n  if (s.includes('linkedinbot')) return 'LinkedIn'\n  if (s.includes('discordbot')) return 'Discord'\n  if (s.includes('telegrambot')) return 'Telegram'\n  if (s.includes('whatsapp')) return 'WhatsApp'\n\n  // AI search and indexing bots.\n  if (s.includes('linkupbot')) return 'Linkup'\n  if (s.includes('sogou')) return 'Sogou'\n  if (s.includes('yandexbot')) return 'Yandex'\n  if (s.includes('baiduspider')) return 'Baidu'\n\n  // Link preview fetchers.\n  if (s.includes('facebookexternalhit')) return 'Facebook'\n  if (s.includes('com.apple.webkit')) return 'Apple URL Preview'\n\n  // Uptime and monitoring.\n  if (s.includes('ohdear')) return 'Oh Dear'\n\n  // Generic scrapers.\n  if (s.includes('scrapy')) return 'Scrapy'\n  if (s.includes('headlesschrome')) return 'Headless Chrome'\n  if (s.includes('phantomjs')) return 'PhantomJS'\n  if (s.includes('wget')) return 'wget'\n  if (s.includes('httpie')) return 'HTTPie'\n  if (s.includes('guzzlehttp')) return 'Guzzle'\n\n  // HTTP library / runtime signatures (loose — coding agent or automation).\n  // Check Electron before Browser since Electron UAs contain Chrome/Safari.\n  if (s.includes('electron/')) return 'Electron'\n  if (/curl\\//.test(s)) return 'curl'\n  if (/axios\\//.test(s)) return 'axios'\n  if (/(?:^|[\\s(])got(?:\\/|[\\s(])/.test(s)) return 'got'\n  if (/\\bcolly\\b/.test(s)) return 'colly'\n  if (/node-fetch\\//.test(s)) return 'node-fetch'\n  if (/python-requests\\//.test(s)) return 'python-requests'\n  if (/go-http-client\\//.test(s)) return 'Go http client'\n  if (/okhttp\\//.test(s)) return 'OkHttp'\n  if (/aiohttp\\//.test(s)) return 'aiohttp'\n  if (/deno\\//.test(s)) return 'Deno'\n\n  // Real browsers (or UAs spoofed to look like them — see Aider/OpenCode note).\n  if (s.includes('mozilla') || s.includes('chrome') || s.includes('safari') || s.includes('firefox'))\n    return 'Browser'\n\n  return 'Other'\n}\n\n/**\n * Return the first product token from a UA header, useful for segmenting by\n * client without hard-coding every bot name. Falls back to `'Other'` for empty\n * input.\n */\nexport function firstUserAgentProduct(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const compatibleMatch = userAgent.match(/compatible;\\s*([^/;\\s]+)(?:\\/[^\\s;]*)?/i)\n  if (compatibleMatch && compatibleMatch[1]) return compatibleMatch[1].trim()\n  const first = userAgent.trim().split('/')[0]?.trim().split(/\\s+/)[0]?.trim()\n  return first || 'Other'\n}\n\n/**\n * Detect likely headless/automated browsers by checking for missing headers\n * that real browsers always send. Playwright, Puppeteer, and similar tools\n * spoof the UA but often omit standard browser headers.\n *\n * Signals checked (each scores 1 point):\n * - Missing `Accept-Language` — every real browser sends this\n * - Missing `Sec-Fetch-Mode` — sent by all modern browsers\n * - Missing `Sec-CH-UA` — Client Hints, Chromium 89+\n * - `Sec-CH-UA` contains \"HeadlessChrome\"\n * - Missing or bare Accept header — browsers send detailed accept lists\n * - `Connection: close` with browser UA — browsers use keep-alive\n *\n * Returns a score (0-6), the signals that fired, and a boolean `likely`\n * flag (score >= 2 with a browser-like UA).\n */\nexport function detectHeadless(req: Request): HeadlessDetection {\n  const signals: string[] = []\n  const ua = (req.headers.get('user-agent') || '').toLowerCase()\n  const isBrowserUA =\n    ua.includes('mozilla') || ua.includes('chrome') || ua.includes('safari') || ua.includes('firefox')\n\n  if (!isBrowserUA) return { score: 0, signals: [], likely: false }\n\n  if (!req.headers.get('accept-language')) {\n    signals.push('missing-accept-language')\n  }\n  if (!req.headers.get('sec-fetch-mode')) {\n    signals.push('missing-sec-fetch-mode')\n  }\n  const secChUa = req.headers.get('sec-ch-ua')\n  if (!secChUa) {\n    signals.push('missing-sec-ch-ua')\n  } else if (secChUa.toLowerCase().includes('headlesschrome')) {\n    signals.push('headless-chrome-hint')\n  }\n  const accept = req.headers.get('accept') || ''\n  if (!accept || accept === '*/*') {\n    signals.push('missing-or-bare-accept')\n  }\n  if ((req.headers.get('connection') || '').toLowerCase() === 'close') {\n    signals.push('connection-close')\n  }\n\n  const score = signals.length\n  return { score, signals, likely: score >= 2 }\n}\n\nexport interface HeadlessDetection {\n  /** Number of suspicious signals found (0-6). */\n  score: number\n  /** Names of the specific signals that fired. */\n  signals: string[]\n  /** True when score >= 2 — strong headless indication. */\n  likely: boolean\n}\n\nexport type AgentKind =\n  | 'declared-crawler'\n  | 'coding-agent-hint'\n  | 'headless-likely'\n  | 'browser'\n  | 'other'\n\nexport interface AgentClassification {\n  /**\n   * Categorical tag for the request:\n   *\n   * - `'declared-crawler'` — {@link AI_BOT_PATTERN} matched. High confidence.\n   * - `'coding-agent-hint'` — {@link HTTP_CLIENT_PATTERN} matched. Loose\n   *   signal; could be a coding agent, a curl script, or any automation.\n   * - `'headless-likely'` — Browser-like UA but missing standard headers.\n   *   Strong signal of Playwright/Puppeteer automation (Aider, OpenCode, etc.).\n   * - `'browser'` — Looks like a real browser with expected headers present.\n   * - `'other'` — Unrecognised or empty.\n   */\n  kind: AgentKind\n  /** Human-readable label, same string {@link parseBotName} returns. */\n  label: string\n  /** Strict: `true` only when the UA matches a branded AI crawler. */\n  isAiBot: boolean\n  /** Loose: `true` for known HTTP-library / automation UAs. */\n  codingAgentHint: boolean\n  /** Headless browser detection result. Only populated when `req` is passed. */\n  headless?: HeadlessDetection\n}\n\n/**\n * UA-only classification. Use {@link classifyRequest} for full detection\n * including headless browser heuristics.\n */\nexport function classifyAgent(userAgent: string | null | undefined): AgentClassification {\n  const label = parseBotName(userAgent)\n  const aiBot = isAiBot(userAgent)\n  const httpClient = isHttpClient(userAgent)\n\n  let kind: AgentKind\n  if (aiBot) kind = 'declared-crawler'\n  else if (httpClient) kind = 'coding-agent-hint'\n  else if (label === 'Browser') kind = 'browser'\n  else kind = 'other'\n\n  return { kind, label, isAiBot: aiBot, codingAgentHint: httpClient }\n}\n\n/**\n * Full request classification — combines UA parsing with header-based\n * headless detection. When a browser-like UA is missing standard headers,\n * the kind is promoted from `'browser'` to `'headless-likely'`.\n */\nexport function classifyRequest(req: Request): AgentClassification {\n  const userAgent = req.headers.get('user-agent') || ''\n  const base = classifyAgent(userAgent)\n  const headless = detectHeadless(req)\n\n  let kind = base.kind\n  if (kind === 'browser' && headless.likely) {\n    kind = 'headless-likely'\n  }\n\n  return { ...base, kind, headless }\n}\n","/**\n * djb2 hash returning an 8-char hex string prefixed with `anon_`. Used to\n * build stable anonymous distinct-ids from `ip:ua:...` tuples without\n * collecting identifying data. Not cryptographic — collisions are fine for\n * analytics segmentation.\n */\nexport function hashId(input: string): string {\n  let h = 5381\n  for (let i = 0; i < input.length; i++) {\n    h = ((h << 5) + h + input.charCodeAt(i)) & 0xffffffff\n  }\n  return 'anon_' + (h >>> 0).toString(16)\n}\n","import { classifyRequest, detectHeadless, isAiBot, isHttpClient } from './bots.js'\nimport { hashId } from './hash.js'\nimport type { TrackVisitOptions } from './types.js'\n\n/**\n * Capture an event describing the incoming request. Fire-and-forget: awaits\n * the adapter but swallows errors so a downed analytics backend never breaks\n * the response path. Callers typically don't await the returned promise.\n *\n * By default, captures every request so coding-agent traffic (axios, curl,\n * Electron, …) shows up alongside branded crawlers. Set `onlyBots: true` to\n * restrict capture to UAs matching {@link AI_BOT_PATTERN}.\n */\nexport async function trackVisit(\n  req: Request,\n  opts: TrackVisitOptions\n): Promise<void> {\n  const userAgent = req.headers.get('user-agent') || ''\n\n  const onlyBots = opts.onlyBots ?? false\n  const skipBrowsers = opts.skipBrowsers ?? false\n  if (onlyBots && !isAiBot(userAgent)) return\n  if (skipBrowsers && !isAiBot(userAgent) && !isHttpClient(userAgent)) {\n    // Not a declared bot or HTTP client — check headless heuristics.\n    // Playwright-based agents (Aider, OpenCode) will pass if they're missing\n    // standard browser headers. Real browsers get skipped.\n    if (!detectHeadless(req).likely) return\n  }\n\n  let pathname = '/'\n  let originFromUrl = ''\n  try {\n    const url = new URL(req.url)\n    pathname = url.pathname\n    originFromUrl = url.origin\n  } catch {\n    // Some runtimes hand us a relative URL; fall back to the raw string.\n    pathname = req.url || '/'\n  }\n  const origin = opts.origin ?? originFromUrl\n\n  const forwardedFor = req.headers.get('x-forwarded-for') || ''\n  const ip = forwardedFor.split(',')[0]?.trim() ?? ''\n  const referer = req.headers.get('referer')\n  const classification = classifyRequest(req)\n\n  const event = {\n    event: opts.eventName ?? 'agent_visit',\n    distinctId: hashId(`${ip}:${userAgent}`),\n    timestamp: new Date().toISOString(),\n    properties: {\n      $process_person_profile: false,\n      $current_url: origin ? `${origin}${pathname}` : pathname,\n      path: pathname,\n      user_agent: userAgent,\n      is_ai_bot: classification.isAiBot,\n      bot_name: classification.label,\n      ua_category: classification.kind,\n      coding_agent_hint: classification.codingAgentHint,\n      headless_score: classification.headless?.score ?? 0,\n      headless_likely: classification.headless?.likely ?? false,\n      referer,\n      source: opts.source ?? null,\n      ...opts.properties\n    }\n  }\n\n  try {\n    await opts.analytics.capture(event)\n  } catch {\n    // Intentional swallow — analytics failures must not affect the response.\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface PostHogAdapterConfig {\n  /** PostHog project API key (the public one used by the JS SDK). */\n  apiKey: string\n  /**\n   * PostHog host, with or without scheme. Defaults to `https://us.i.posthog.com`.\n   * Use `https://eu.i.posthog.com` for EU cloud, or your own reverse-proxy\n   * domain (e.g. `https://svc.example.com`).\n   */\n  host?: string\n  /**\n   * Path on the host that accepts single-event captures. Defaults to\n   * `/i/v0/e/` which is PostHog's current endpoint for this.\n   */\n  path?: string\n  /**\n   * Override the `fetch` implementation (useful for tests or custom runtimes\n   * that need a pinned fetch).\n   */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that posts each event to the PostHog capture endpoint. Uses\n * `keepalive: true` so the request survives after a serverless response\n * returns — events aren't guaranteed (fire-and-forget), but that's the\n * trade we want to keep the hot path fast.\n */\nexport function posthogAnalytics(config: PostHogAdapterConfig): AnalyticsAdapter {\n  const hostRaw = config.host ?? 'https://us.i.posthog.com'\n  const base = (/^https?:\\/\\//.test(hostRaw) ? hostRaw : `https://${hostRaw}`).replace(/\\/$/, '')\n  const path = (config.path ?? '/i/v0/e/').replace(/^(?!\\/)/, '/')\n  const endpoint = `${base}${path}`\n  const fetchImpl = config.fetchImpl ?? fetch\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      const payload = {\n        api_key: config.apiKey,\n        event: event.event,\n        distinct_id: event.distinctId,\n        timestamp: event.timestamp,\n        properties: event.properties\n      }\n      await fetchImpl(endpoint, {\n        method: 'POST',\n        headers: { 'Content-Type': 'application/json' },\n        body: JSON.stringify(payload),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface WebhookAdapterConfig {\n  /** Destination URL that receives a POST for each event. */\n  url: string\n  /** Extra headers merged onto the POST (useful for shared-secret auth). */\n  headers?: Record<string, string>\n  /**\n   * Transform the event into the exact JSON body the destination expects.\n   * Defaults to sending the {@link CaptureEvent} as-is.\n   */\n  transform?: (event: CaptureEvent) => unknown\n  /** Override the `fetch` implementation. */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that POSTs each event to an arbitrary webhook URL. Keeps the\n * library analytics-backend-agnostic — use this when PostHog isn't your\n * analytics of record, or when you want to multiplex events through your\n * own ingestion layer.\n */\nexport function webhookAnalytics(config: WebhookAdapterConfig): AnalyticsAdapter {\n  const fetchImpl = config.fetchImpl ?? fetch\n  const transform = config.transform ?? ((e: CaptureEvent): unknown => e)\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      await fetchImpl(config.url, {\n        method: 'POST',\n        headers: {\n          'Content-Type': 'application/json',\n          ...(config.headers ?? {})\n        },\n        body: JSON.stringify(transform(event)),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\n/**\n * Escape hatch for wiring a callback directly as an analytics adapter.\n * Useful when you want to log events, pipe them through your own SDK, or\n * compose multiple adapters.\n *\n * @example\n * ```ts\n * const devAnalytics = customAnalytics((e) => console.log('[doc_view]', e))\n * ```\n */\nexport function customAnalytics(\n  capture: (event: CaptureEvent) => Promise<void> | void\n): AnalyticsAdapter {\n  return { capture }\n}\n"]}
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* User-agent substrings that identify **publicly declared** AI crawlers — the\n * branded bots that identify themselves by name (OpenAI's GPTBot, Anthropic's\n * ClaudeBot, Perplexity-User, Google-Extended, etc.). High-confidence: when\n * this matches, the request almost certainly comes from that vendor's crawler\n * fleet.\n *\n * Does NOT include **coding-agent traffic** (Claude Code, Cline, Cursor,\n * Windsurf, Aider, OpenCode, VS Code). Those tools use generic HTTP library\n * UAs (axios, curl, got, colly, Electron) or spoof full browser UAs — they\n * can't be distinguished from non-AI traffic by UA alone. See\n * {@link HTTP_CLIENT_PATTERN} for the loose heuristic layer.\n *\n * Sources consulted when updating: darkvisitors.com, vendor docs from OpenAI,\n * Anthropic, Google, Perplexity, Cohere, Apple, Bytedance.\n */\nexport const AI_BOT_PATTERN =\n  /ClaudeBot|Claude-User|Anthropic|ChatGPT-User|GPTBot|OAI-SearchBot|PerplexityBot|Perplexity-User|Google-Extended|Applebot-Extended|cohere-ai|Bytespider|CCBot|Amazonbot|Meta-ExternalAgent|FacebookBot|DuckAssistBot|MistralAI-User|YouBot|AI2Bot|Diffbot|Cursor|Windsurf/i\n\n/**\n * HTTP library / runtime signatures frequently used by coding agents. Matching\n * any of these is a **loose** signal — legitimate curl scripts, CI jobs, and\n * server-to-server traffic use the same libraries. Use this for the wider\n * net (`coding_agent_hint: true`) and pair with other signals (request\n * shape, JA4 fingerprint, path patterns) for higher confidence.\n *\n * Based on behavioural signatures observed by Addy Osmani:\n *   Claude Code  → axios/1.8.4\n *   Cline, Junie → curl/8.4.0\n *   Cursor       → got (sindresorhus/got)\n *   Windsurf     → colly\n *   VS Code      → Electron / Chromium\n *\n * Aider and OpenCode use Playwright-driven full Mozilla/Safari UAs and are\n * indistinguishable from real browsers at the UA layer.\n */\nexport const HTTP_CLIENT_PATTERN =\n  /axios\\/|curl\\/|(?:^|[\\s(])got(?:\\/|[\\s(])|\\bcolly\\b|Electron\\/|node-fetch\\/|python-requests\\/|Go-http-client\\/|okhttp\\/|aiohttp\\/|Deno\\//i\n\nexport function isAiBot(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return AI_BOT_PATTERN.test(userAgent)\n}\n\nexport function isHttpClient(userAgent: string | null | undefined): boolean {\n  if (!userAgent) return false\n  return HTTP_CLIENT_PATTERN.test(userAgent)\n}\n\n/**\n * Map a user-agent string to a coarse, human-readable label. Returns one of:\n *\n * - A branded-crawler name (`'Claude'`, `'ChatGPT'`, …) — pair with\n *   {@link isAiBot} for `is_ai_bot: true` segmentation.\n * - An HTTP-library name (`'curl'`, `'axios'`, `'got'`, `'colly'`,\n *   `'Electron'`, …) — hint of a coding agent or automation; not\n *   conclusive. Pair with {@link isHttpClient}.\n * - `'Browser'` for typical desktop browsers (possibly spoofed by\n *   Playwright-based agents like Aider/OpenCode — this label alone can't\n *   tell you).\n * - `'Other'` for anything unrecognised or empty input.\n */\nexport function parseBotName(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const s = userAgent.toLowerCase()\n\n  // Publicly declared AI crawlers (high confidence).\n  if (s.includes('chatgpt-user') || s.includes('gptbot') || s.includes('oai-searchbot') || s.includes('openai'))\n    return 'ChatGPT'\n  if (s.includes('claudebot') || s.includes('claude-user') || s.includes('anthropic')) return 'Claude'\n  if (s.includes('perplexitybot') || s.includes('perplexity-user')) return 'Perplexity'\n  if (s.includes('ccbot')) return 'Common Crawl'\n  if (s.includes('google-extended') || s.includes('googlebot')) return 'Google'\n  if (s.includes('applebot-extended') || s.includes('applebot')) return 'Apple'\n  if (s.includes('bingbot')) return 'Bing'\n  if (s.includes('bytespider')) return 'Bytespider'\n  if (s.includes('amazonbot')) return 'Amazon'\n  if (s.includes('meta-externalagent') || s.includes('facebookbot')) return 'Meta'\n  if (s.includes('mistralai-user')) return 'Mistral'\n  if (s.includes('duckassistbot')) return 'DuckDuckGo'\n  if (s.includes('youbot')) return 'You.com'\n  if (s.includes('diffbot')) return 'Diffbot'\n  if (s.includes('ai2bot')) return 'AI2'\n  if (s.includes('cohere')) return 'Cohere'\n  if (s.includes('cursor')) return 'Cursor'\n  if (s.includes('windsurf')) return 'Windsurf'\n  if (s.includes('petalbot')) return 'PetalBot'\n\n  // SEO crawlers and monitoring bots.\n  if (s.includes('ahrefsbot')) return 'Ahrefs'\n  if (s.includes('semrushbot')) return 'Semrush'\n  if (s.includes('mj12bot')) return 'Majestic'\n  if (s.includes('dotbot')) return 'Moz'\n  if (s.includes('rogerbot')) return 'Moz'\n  if (s.includes('screaming frog')) return 'Screaming Frog'\n  if (s.includes('sitebulb')) return 'Sitebulb'\n  if (s.includes('linkfluence')) return 'Linkfluence'\n  if (s.includes('dataforseo')) return 'DataForSEO'\n  if (s.includes('serpstatbot')) return 'Serpstat'\n\n  // Monitoring and feed bots.\n  if (s.includes('uptimerobot')) return 'UptimeRobot'\n  if (s.includes('pingdom')) return 'Pingdom'\n  if (s.includes('statuscake')) return 'StatusCake'\n  if (s.includes('newrelicpinger')) return 'New Relic'\n  if (s.includes('datadogagent') || s.includes('datadog')) return 'Datadog'\n  if (s.includes('slackbot')) return 'Slack'\n  if (s.includes('twitterbot')) return 'Twitter'\n  if (s.includes('linkedinbot')) return 'LinkedIn'\n  if (s.includes('discordbot')) return 'Discord'\n  if (s.includes('telegrambot')) return 'Telegram'\n  if (s.includes('whatsapp')) return 'WhatsApp'\n\n  // AI search and indexing bots.\n  if (s.includes('linkupbot')) return 'Linkup'\n  if (s.includes('sogou')) return 'Sogou'\n  if (s.includes('yandexbot')) return 'Yandex'\n  if (s.includes('baiduspider')) return 'Baidu'\n\n  // Link preview fetchers.\n  if (s.includes('facebookexternalhit')) return 'Facebook'\n  if (s.includes('com.apple.webkit')) return 'Apple URL Preview'\n\n  // Uptime and monitoring.\n  if (s.includes('ohdear')) return 'Oh Dear'\n\n  // Generic scrapers.\n  if (s.includes('scrapy')) return 'Scrapy'\n  if (s.includes('headlesschrome')) return 'Headless Chrome'\n  if (s.includes('phantomjs')) return 'PhantomJS'\n  if (s.includes('wget')) return 'wget'\n  if (s.includes('httpie')) return 'HTTPie'\n  if (s.includes('guzzlehttp')) return 'Guzzle'\n\n  // HTTP library / runtime signatures (loose — coding agent or automation).\n  // Check Electron before Browser since Electron UAs contain Chrome/Safari.\n  if (s.includes('electron/')) return 'Electron'\n  if (/curl\\//.test(s)) return 'curl'\n  if (/axios\\//.test(s)) return 'axios'\n  if (/(?:^|[\\s(])got(?:\\/|[\\s(])/.test(s)) return 'got'\n  if (/\\bcolly\\b/.test(s)) return 'colly'\n  if (/node-fetch\\//.test(s)) return 'node-fetch'\n  if (/python-requests\\//.test(s)) return 'python-requests'\n  if (/go-http-client\\//.test(s)) return 'Go http client'\n  if (/okhttp\\//.test(s)) return 'OkHttp'\n  if (/aiohttp\\//.test(s)) return 'aiohttp'\n  if (/deno\\//.test(s)) return 'Deno'\n\n  // Real browsers (or UAs spoofed to look like them — see Aider/OpenCode note).\n  if (s.includes('mozilla') || s.includes('chrome') || s.includes('safari') || s.includes('firefox'))\n    return 'Browser'\n\n  return 'Other'\n}\n\n/**\n * Return the first product token from a UA header, useful for segmenting by\n * client without hard-coding every bot name. Falls back to `'Other'` for empty\n * input.\n */\nexport function firstUserAgentProduct(userAgent: string | null | undefined): string {\n  if (!userAgent || typeof userAgent !== 'string') return 'Other'\n  const compatibleMatch = userAgent.match(/compatible;\\s*([^/;\\s]+)(?:\\/[^\\s;]*)?/i)\n  if (compatibleMatch && compatibleMatch[1]) return compatibleMatch[1].trim()\n  const first = userAgent.trim().split('/')[0]?.trim().split(/\\s+/)[0]?.trim()\n  return first || 'Other'\n}\n\n/**\n * Detect likely headless/automated browsers by checking for missing headers\n * that real browsers always send. Playwright, Puppeteer, and similar tools\n * spoof the UA but often omit standard browser headers.\n *\n * Signals checked (each scores 1 point):\n * - Missing `Accept-Language` — every real browser sends this\n * - Missing `Sec-Fetch-Mode` — sent by all modern browsers\n * - Missing `Sec-CH-UA` — Client Hints, Chromium 89+\n * - `Sec-CH-UA` contains \"HeadlessChrome\"\n * - Missing or bare Accept header — browsers send detailed accept lists\n * - `Connection: close` with browser UA — browsers use keep-alive\n *\n * Returns a score (0-6), the signals that fired, and a boolean `likely`\n * flag (score >= 2 with a browser-like UA).\n */\nexport function detectHeadless(req: Request): HeadlessDetection {\n  const signals: string[] = []\n  const ua = (req.headers.get('user-agent') || '').toLowerCase()\n  const isBrowserUA =\n    ua.includes('mozilla') || ua.includes('chrome') || ua.includes('safari') || ua.includes('firefox')\n\n  if (!isBrowserUA) return { score: 0, signals: [], likely: false }\n\n  if (!req.headers.get('accept-language')) {\n    signals.push('missing-accept-language')\n  }\n  if (!req.headers.get('sec-fetch-mode')) {\n    signals.push('missing-sec-fetch-mode')\n  }\n  const secChUa = req.headers.get('sec-ch-ua')\n  if (!secChUa) {\n    signals.push('missing-sec-ch-ua')\n  } else if (secChUa.toLowerCase().includes('headlesschrome')) {\n    signals.push('headless-chrome-hint')\n  }\n  const accept = req.headers.get('accept') || ''\n  if (!accept || accept === '*/*') {\n    signals.push('missing-or-bare-accept')\n  }\n  if ((req.headers.get('connection') || '').toLowerCase() === 'close') {\n    signals.push('connection-close')\n  }\n\n  const score = signals.length\n  return { score, signals, likely: score >= 2 }\n}\n\nexport interface HeadlessDetection {\n  /** Number of suspicious signals found (0-6). */\n  score: number\n  /** Names of the specific signals that fired. */\n  signals: string[]\n  /** True when score >= 2 — strong headless indication. */\n  likely: boolean\n}\n\nexport type AgentKind =\n  | 'declared-crawler'\n  | 'coding-agent-hint'\n  | 'headless-likely'\n  | 'browser'\n  | 'other'\n\nexport interface AgentClassification {\n  /**\n   * Categorical tag for the request:\n   *\n   * - `'declared-crawler'` — {@link AI_BOT_PATTERN} matched. High confidence.\n   * - `'coding-agent-hint'` — {@link HTTP_CLIENT_PATTERN} matched. Loose\n   *   signal; could be a coding agent, a curl script, or any automation.\n   * - `'headless-likely'` — Browser-like UA but missing standard headers.\n   *   Strong signal of Playwright/Puppeteer automation (Aider, OpenCode, etc.).\n   * - `'browser'` — Looks like a real browser with expected headers present.\n   * - `'other'` — Unrecognised or empty.\n   */\n  kind: AgentKind\n  /** Human-readable label, same string {@link parseBotName} returns. */\n  label: string\n  /** Strict: `true` only when the UA matches a branded AI crawler. */\n  isAiBot: boolean\n  /** Loose: `true` for known HTTP-library / automation UAs. */\n  codingAgentHint: boolean\n  /** Headless browser detection result. Only populated when `req` is passed. */\n  headless?: HeadlessDetection\n}\n\n/**\n * UA-only classification. Use {@link classifyRequest} for full detection\n * including headless browser heuristics.\n */\nexport function classifyAgent(userAgent: string | null | undefined): AgentClassification {\n  const label = parseBotName(userAgent)\n  const aiBot = isAiBot(userAgent)\n  const httpClient = isHttpClient(userAgent)\n\n  let kind: AgentKind\n  if (aiBot) kind = 'declared-crawler'\n  else if (httpClient) kind = 'coding-agent-hint'\n  else if (label === 'Browser') kind = 'browser'\n  else kind = 'other'\n\n  return { kind, label, isAiBot: aiBot, codingAgentHint: httpClient }\n}\n\n/**\n * Full request classification — combines UA parsing with header-based\n * headless detection. When a browser-like UA is missing standard headers,\n * the kind is promoted from `'browser'` to `'headless-likely'`.\n */\nexport function classifyRequest(req: Request): AgentClassification {\n  const userAgent = req.headers.get('user-agent') || ''\n  const base = classifyAgent(userAgent)\n  const headless = detectHeadless(req)\n\n  let kind = base.kind\n  if (kind === 'browser' && headless.likely) {\n    kind = 'headless-likely'\n  }\n\n  return { ...base, kind, headless }\n}\n","/**\n * djb2 hash returning an 8-char hex string prefixed with `anon_`. Used to\n * build stable anonymous distinct-ids from `ip:ua:...` tuples without\n * collecting identifying data. Not cryptographic — collisions are fine for\n * analytics segmentation.\n */\nexport function hashId(input: string): string {\n  let h = 5381\n  for (let i = 0; i < input.length; i++) {\n    h = ((h << 5) + h + input.charCodeAt(i)) & 0xffffffff\n  }\n  return 'anon_' + (h >>> 0).toString(16)\n}\n","import { classifyRequest, detectHeadless, isAiBot, isHttpClient } from './bots.js'\nimport { hashId } from './hash.js'\nimport type { TrackVisitOptions } from './types.js'\n\n/**\n * Capture an event describing the incoming request. Fire-and-forget: awaits\n * the adapter but swallows errors so a downed analytics backend never breaks\n * the response path. Callers typically don't await the returned promise.\n *\n * By default, captures every request so coding-agent traffic (axios, curl,\n * Electron, …) shows up alongside branded crawlers. Set `onlyBots: true` to\n * restrict capture to UAs matching {@link AI_BOT_PATTERN}.\n */\nexport async function trackVisit(\n  req: Request,\n  opts: TrackVisitOptions\n): Promise<void> {\n  const userAgent = req.headers.get('user-agent') || ''\n\n  const onlyBots = opts.onlyBots ?? false\n  const skipBrowsers = opts.skipBrowsers ?? false\n  if (onlyBots && !isAiBot(userAgent)) return\n  if (skipBrowsers && !isAiBot(userAgent) && !isHttpClient(userAgent)) {\n    // Not a declared bot or HTTP client — check headless heuristics.\n    // Playwright-based agents (Aider, OpenCode) will pass if they're missing\n    // standard browser headers. Real browsers get skipped.\n    if (!detectHeadless(req).likely) return\n  }\n\n  let pathname = '/'\n  let originFromUrl = ''\n  try {\n    const url = new URL(req.url)\n    pathname = url.pathname\n    originFromUrl = url.origin\n  } catch {\n    // Some runtimes hand us a relative URL; fall back to the raw string.\n    pathname = req.url || '/'\n  }\n  const origin = opts.origin ?? originFromUrl\n\n  const forwardedFor = req.headers.get('x-forwarded-for') || ''\n  const ip = forwardedFor.split(',')[0]?.trim() ?? ''\n  const referer = req.headers.get('referer')\n  const country =\n    req.headers.get('x-vercel-ip-country') ||\n    req.headers.get('cf-ipcountry') ||\n    req.headers.get('x-country-code') ||\n    null\n  const classification = classifyRequest(req)\n\n  const event = {\n    event: opts.eventName ?? 'agent_visit',\n    distinctId: hashId(`${ip}:${userAgent}`),\n    timestamp: new Date().toISOString(),\n    properties: {\n      $process_person_profile: false,\n      $current_url: origin ? `${origin}${pathname}` : pathname,\n      path: pathname,\n      method: req.method,\n      country_code: country,\n      ...(opts.captureIp ? { client_ip: ip || null } : {}),\n      user_agent: userAgent,\n      is_ai_bot: classification.isAiBot,\n      bot_name: classification.label,\n      ua_category: classification.kind,\n      coding_agent_hint: classification.codingAgentHint,\n      headless_score: classification.headless?.score ?? 0,\n      headless_likely: classification.headless?.likely ?? false,\n      referer,\n      source: opts.source ?? null,\n      ...opts.properties\n    }\n  }\n\n  try {\n    await opts.analytics.capture(event)\n  } catch {\n    // Intentional swallow — analytics failures must not affect the response.\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface PostHogAdapterConfig {\n  /** PostHog project API key (the public one used by the JS SDK). */\n  apiKey: string\n  /**\n   * PostHog host, with or without scheme. Defaults to `https://us.i.posthog.com`.\n   * Use `https://eu.i.posthog.com` for EU cloud, or your own reverse-proxy\n   * domain (e.g. `https://svc.example.com`).\n   */\n  host?: string\n  /**\n   * Path on the host that accepts single-event captures. Defaults to\n   * `/i/v0/e/` which is PostHog's current endpoint for this.\n   */\n  path?: string\n  /**\n   * Override the `fetch` implementation (useful for tests or custom runtimes\n   * that need a pinned fetch).\n   */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that posts each event to the PostHog capture endpoint. Uses\n * `keepalive: true` so the request survives after a serverless response\n * returns — events aren't guaranteed (fire-and-forget), but that's the\n * trade we want to keep the hot path fast.\n */\nexport function posthogAnalytics(config: PostHogAdapterConfig): AnalyticsAdapter {\n  const hostRaw = config.host ?? 'https://us.i.posthog.com'\n  const base = (/^https?:\\/\\//.test(hostRaw) ? hostRaw : `https://${hostRaw}`).replace(/\\/$/, '')\n  const path = (config.path ?? '/i/v0/e/').replace(/^(?!\\/)/, '/')\n  const endpoint = `${base}${path}`\n  const fetchImpl = config.fetchImpl ?? fetch\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      const payload = {\n        api_key: config.apiKey,\n        event: event.event,\n        distinct_id: event.distinctId,\n        timestamp: event.timestamp,\n        properties: event.properties\n      }\n      await fetchImpl(endpoint, {\n        method: 'POST',\n        headers: { 'Content-Type': 'application/json' },\n        body: JSON.stringify(payload),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\nexport interface WebhookAdapterConfig {\n  /** Destination URL that receives a POST for each event. */\n  url: string\n  /** Extra headers merged onto the POST (useful for shared-secret auth). */\n  headers?: Record<string, string>\n  /**\n   * Transform the event into the exact JSON body the destination expects.\n   * Defaults to sending the {@link CaptureEvent} as-is.\n   */\n  transform?: (event: CaptureEvent) => unknown\n  /** Override the `fetch` implementation. */\n  fetchImpl?: typeof fetch\n}\n\n/**\n * Adapter that POSTs each event to an arbitrary webhook URL. Keeps the\n * library analytics-backend-agnostic — use this when PostHog isn't your\n * analytics of record, or when you want to multiplex events through your\n * own ingestion layer.\n */\nexport function webhookAnalytics(config: WebhookAdapterConfig): AnalyticsAdapter {\n  const fetchImpl = config.fetchImpl ?? fetch\n  const transform = config.transform ?? ((e: CaptureEvent): unknown => e)\n\n  return {\n    async capture(event: CaptureEvent): Promise<void> {\n      await fetchImpl(config.url, {\n        method: 'POST',\n        headers: {\n          'Content-Type': 'application/json',\n          ...(config.headers ?? {})\n        },\n        body: JSON.stringify(transform(event)),\n        keepalive: true\n      })\n    }\n  }\n}\n","import type { AnalyticsAdapter, CaptureEvent } from '../types.js'\n\n/**\n * Escape hatch for wiring a callback directly as an analytics adapter.\n * Useful when you want to log events, pipe them through your own SDK, or\n * compose multiple adapters.\n *\n * @example\n * ```ts\n * const devAnalytics = customAnalytics((e) => console.log('[doc_view]', e))\n * ```\n */\nexport function customAnalytics(\n  capture: (event: CaptureEvent) => Promise<void> | void\n): AnalyticsAdapter {\n  return { capture }\n}\n"]}

package.json

 {
   "name": "@apideck/agent-analytics",
-  "version": "0.7.0",
+  "version": "0.8.0",
   "description": "Track AI agent and bot traffic to your Next.js / Vercel app — PostHog, webhooks, or any custom analytics backend. Detects Claude, ChatGPT, Perplexity, Google-Extended, and more.",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -62,2 +62,4 @@ <div align="center">
     "path": "/docs/intro",
+    "method": "GET",
+    "country_code": "NL",                   // x-vercel-ip-country / cf-ipcountry / x-country-code
     "user_agent": "ClaudeBot/1.0 (+https://claude.ai/bot)",
@@ -64,0 +66,0 @@ "is_ai_bot": true,                      // strict: matches a branded AI crawler

dist/types--odwdYFT.d.cts

-interface CaptureEvent {
-    event: string;
-    distinctId: string;
-    timestamp: string;
-    properties: Record<string, unknown>;
-}
-interface AnalyticsAdapter {
-    capture(event: CaptureEvent): Promise<void> | void;
-}
-interface TrackVisitOptions {
-    analytics: AnalyticsAdapter;
-    /**
-     * Label describing how the request arrived (e.g. `'page-view'`, `'md-suffix'`,
-     * `'ua-rewrite'`). Emitted as a `source` property on the captured event so
-     * you can segment by channel.
-     */
-    source?: string;
-    /**
-     * Event name. Defaults to `'agent_visit'`.
-     */
-    eventName?: string;
-    /**
-     * When `true`, skip capture unless the request UA matches the built-in AI
-     * bot pattern. Defaults to `false`, which captures every request (including
-     * coding-agent traffic that uses HTTP-library UAs like axios or curl).
-     */
-    onlyBots?: boolean;
-    /**
-     * When `true`, capture AI bots and coding agents (HTTP clients like axios,
-     * curl, node-fetch) but skip regular browsers. Use this when client-side
-     * analytics already handles browser traffic. Defaults to `false`.
-     */
-    skipBrowsers?: boolean;
-    /**
-     * Extra properties merged into the captured event. Useful for tagging the
-     * site (`{ site: 'docs' }`) or any other dimension.
-     */
-    properties?: Record<string, unknown>;
-    /**
-     * Override the origin used for `$current_url`. Defaults to the request URL's
-     * origin.
-     */
-    origin?: string;
-}
-
-export type { AnalyticsAdapter as A, CaptureEvent as C, TrackVisitOptions as T };

dist/types--odwdYFT.d.ts

-interface CaptureEvent {
-    event: string;
-    distinctId: string;
-    timestamp: string;
-    properties: Record<string, unknown>;
-}
-interface AnalyticsAdapter {
-    capture(event: CaptureEvent): Promise<void> | void;
-}
-interface TrackVisitOptions {
-    analytics: AnalyticsAdapter;
-    /**
-     * Label describing how the request arrived (e.g. `'page-view'`, `'md-suffix'`,
-     * `'ua-rewrite'`). Emitted as a `source` property on the captured event so
-     * you can segment by channel.
-     */
-    source?: string;
-    /**
-     * Event name. Defaults to `'agent_visit'`.
-     */
-    eventName?: string;
-    /**
-     * When `true`, skip capture unless the request UA matches the built-in AI
-     * bot pattern. Defaults to `false`, which captures every request (including
-     * coding-agent traffic that uses HTTP-library UAs like axios or curl).
-     */
-    onlyBots?: boolean;
-    /**
-     * When `true`, capture AI bots and coding agents (HTTP clients like axios,
-     * curl, node-fetch) but skip regular browsers. Use this when client-side
-     * analytics already handles browser traffic. Defaults to `false`.
-     */
-    skipBrowsers?: boolean;
-    /**
-     * Extra properties merged into the captured event. Useful for tagging the
-     * site (`{ site: 'docs' }`) or any other dimension.
-     */
-    properties?: Record<string, unknown>;
-    /**
-     * Override the origin used for `$current_url`. Defaults to the request URL's
-     * origin.
-     */
-    origin?: string;
-}
-
-export type { AnalyticsAdapter as A, CaptureEvent as C, TrackVisitOptions as T };

New alerts

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Found 1 instance in 1 package

Fixed alerts

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

190602

1.3%

Lines of code

1047

1.45%

Number of lines in readme file

500

0.4%

No dependency changes