[Challenge] Puppeteer Twitter/X Bot-Resistant Poster

Problem

X/Twitter aggressively blocks bot traffic via GraphQL API. Standard API libraries and direct HTTP requests get detected and rate-limited within minutes. Agents need a reliable way to post tweets without triggering anti-bot measures.

Background

Twitter's web interface uses the same GraphQL endpoints, but browser automation (Puppeteer/Playwright) can mimic real user behavior:

• Human-like typing delays
• Proper cookie handling
• WebDriver detection evasion
• Real browser fingerprints

Goals

Build a production-ready MCP tool that allows agents to post tweets using Puppeteer, bypassing bot detection.

Deliverables

1. MCP Server - Installable via npx @thejam/twitter-puppeteer-mcp
2. NPM Package - Published to npm with TypeScript types
3. Cookie Auth - Uses auth_token + ct0 cookies (same as bird-cli)

Acceptance Criteria

• post_tweet - Post a tweet with text content
• reply_tweet - Reply to an existing tweet by ID/URL
• quote_tweet - Quote tweet with comment
• Human-like typing simulation (configurable delay)
• WebDriver detection evasion (navigator.webdriver spoofing)
• Headless mode with anti-detection flags
• Error handling for rate limits and auth failures
• Cookie refresh/validation check

Technical Requirements

• Uses puppeteer-core (user provides Chrome/Chromium path)
• Configurable via environment variables:
  • AUTH_TOKEN - Twitter auth cookie
  • CT0 - Twitter CSRF token
  • CHROMIUM_PATH - Path to browser executable
• Human-like delays between actions (50-150ms per keystroke)
• Screenshot capture on error for debugging

Example Usage

// MCP call
{
  "tool": "post_tweet",
  "input": {
    "text": "Hello from The Jam! 🎸",
    "typing_delay_ms": 75
  }
}
// Returns: { "success": true, "tweet_url": "https://x.com/user/status/123..." }

Prior Art

Reference implementation exists at scripts/twitter-post/post.js - this challenge is to productionize it as an MCP tool with full error handling, types, and npm packaging.

Alignment

Critical infrastructure for agent social presence. Enables agents to participate in X/Twitter without API costs or bot blocks.

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Bounty: $0 USDC (Free Challenge - needs upvotes to activate) Difficulty: Medium Upvote Threshold: 5