tweet-rl-tracker

What I Do

Set up a Notion database to track tweet performance and enable a feedback loop for improving tweet quality over time. This is "poor man's reinforcement learning" - manually logging outcomes to discover what works.

NEW: Screenshot Capture - Automatically capture screenshots from tweet links (including video frames at 10 seconds) using Chrome DevTools MCP.

The RL Loop

1. WRITE   -> Draft tweet with a hypothesis (hook type, topic, etc.)
2. POST    -> Publish to Twitter/X
3. LOG     -> Record in Notion after 24-48hrs with metrics
4. SCORE   -> Mark "Worked?" based on engagement rate
5. REVIEW  -> Weekly: compare winners vs losers, extract patterns
6. REPEAT  -> Apply learnings to step 1

Database Schema

Core Fields (Outcomes)

Input Features (What You Controlled)

Optional Extensions

Setup Instructions

Step 1: Create the Page and Database

Use the Notion MCP tools to create:

notion_notion-create-pages with:
- title: "Tweet Lab" (or your preferred name)
- content: Brief intro about the system

Then inside that page, create a database with:
notion_notion-create-database with the schema above

Step 2: Example Notion Tool Calls

Create the container page:

{
  "pages": [
    {
      "properties": { "title": "Tweet Lab" },
      "content": "## Tweet Performance Tracker\n\nA simple system to track what works and improve over time.\n\n### The Loop\n1. Post tweet\n2. Log metrics after 24-48hrs\n3. Mark if it \"Worked\"\n4. Weekly: review patterns\n\n<database>Tweets</database>"
    }
  ]
}

Create the database (after getting page_id):

{
  "parent": { "page_id": "<page-id-from-above>" },
  "title": [{ "type": "text", "text": { "content": "Tweets" } }],
  "properties": {
    "Tweet": { "type": "title", "title": {} },
    "Likes": { "type": "number", "number": { "format": "number" } },
    "Impressions": { "type": "number", "number": { "format": "number" } },
    "Score": {
      "type": "formula",
      "formula": {
        "expression": "if(prop(\"Impressions\") > 0, prop(\"Likes\") / prop(\"Impressions\") * 100, 0)"
      }
    },
    "Worked?": { "type": "checkbox", "checkbox": {} },
    "Hook": {
      "type": "select",
      "select": {
        "options": [
          { "name": "Question", "color": "blue" },
          { "name": "Bold Claim", "color": "red" },
          { "name": "Story", "color": "green" },
          { "name": "List", "color": "yellow" },
          { "name": "How-To", "color": "purple" },
          { "name": "Contrarian", "color": "orange" },
          { "name": "Data/Stats", "color": "pink" }
        ]
      }
    },
    "Topic": {
      "type": "select",
      "select": { "options": [] }
    },
    "Posted": { "type": "date", "date": {} }
  }
}

Using the System

Daily: Log Tweets

After 24-48 hours, add a row:

• Copy tweet text
• Pull Likes and Impressions from Twitter analytics
• Select the Hook type you used
• Select or create a Topic tag

Weekly: Review Session

1. Sort by Score (descending) - what performed best?
2. Filter by "Worked?" = true - what patterns emerge?
3. Group by Hook - which hook types win?
4. Group by Topic - which topics resonate?

Monthly: Form Hypotheses

Based on patterns, create hypotheses to test:

• "Questions about [topic] get 2x engagement"
• "Bold claims underperform for my audience"
• "Threads outperform single tweets"

Then deliberately test these in the next month.

Key Insights

What Makes This Work

1. Track inputs, not just outputs - Without knowing what you tried (hook, topic), you can't learn what caused success
2. Binary "Worked?" is powerful - Forces a clear decision, easier to analyze than continuous scores
3. Review regularly - Data without reflection is useless
4. Test hypotheses deliberately - Don't just observe, experiment

Common Pitfalls

• Logging inconsistently (do it same time each day/week)
• Not tracking input features (hook, topic)
• Never reviewing the data
• Optimizing for wrong metric (likes vs. replies vs. followers)

Customization

Different Goals = Different Metrics

Add Your Topics

Update the Topic select options based on your niche. Examples:

• Tech founder: Product, Fundraising, Hiring, Lessons, Industry
• Creator: Process, Tools, Mindset, Results, Behind-the-scenes

Troubleshooting

"I forget to log tweets"

• Set a daily/weekly calendar reminder
• Add a "Logged?" checkbox to your posting workflow
• Batch log once per week instead of daily

"I don't know what hook I used"

• Decide BEFORE posting, not after
• Add hook type to your tweet drafting process
• When in doubt, pick the closest match

"My Score is always low"

• Engagement rates are typically 1-5% - this is normal
• Compare relative performance, not absolute numbers
• Consider using a different base metric for "Worked?"

---

Screenshot Capture with Chrome MCP

Prerequisites

• Chrome DevTools MCP configured in your MCP client
• Logged into Twitter/X in the Chrome profile

Database Field

The Tweets database includes a Screenshot field (type: files) to store captured images.

Data Source ID: a6913492-bfdc-4f6a-b539-ea98b57a2738

Workflow: Capture Tweet Screenshot

Given a tweet URL like https://x.com/username/status/1234567890:

Step 1: Navigate to Tweet

// Open new page with the tweet
new_page({ url: 'https://x.com/username/status/1234567890' });

// Wait for tweet to load
wait_for({ text: 'Reply' }); // or wait for specific tweet content

Step 2: Take Screenshot of Tweet

// Take full page screenshot
take_screenshot({ fullPage: false });

// Or screenshot specific element (the tweet article)
take_snapshot(); // Get element uids first
take_screenshot({ uid: 'tweet-article-uid' });

Step 3: For Video Tweets - Capture Frame at 10 Seconds

// 1. Find and click the video to start playing
take_snapshot();
click({ uid: 'video-player-uid' });

// 2. Wait 10 seconds for video to play
// (Use evaluate_script to seek if possible)
evaluate_script({
  function: `() => {
    const video = document.querySelector('video');
    if (video) {
      video.currentTime = 10;
      video.pause();
      return { success: true, duration: video.duration };
    }
    return { success: false };
  }`,
});

// 3. Take screenshot of the video frame
take_screenshot({ fullPage: false });

Step 4: Extract Tweet Metadata

evaluate_script({
  function: `() => {
    // Extract tweet text
    const tweetText = document.querySelector('[data-testid="tweetText"]')?.textContent || '';
    
    // Extract author
    const author = document.querySelector('[data-testid="User-Name"]')?.textContent || '';
    
    // Extract metrics (likes, retweets, etc.)
    const metrics = {};
    document.querySelectorAll('[data-testid="like"], [data-testid="retweet"]').forEach(el => {
      const label = el.getAttribute('aria-label') || '';
      if (label.includes('like')) metrics.likes = parseInt(label) || 0;
      if (label.includes('repost')) metrics.retweets = parseInt(label) || 0;
    });
    
    // Check if video exists
    const hasVideo = !!document.querySelector('video');
    const hasImage = !!document.querySelector('[data-testid="tweetPhoto"]');
    
    return {
      text: tweetText,
      author,
      metrics,
      mediaType: hasVideo ? 'Video' : hasImage ? 'Image' : 'None'
    };
  }`,
});

Complete Example: Add Tweet with Screenshot

User: Add this tweet to the tracker: https://x.com/unvalley_/status/2005899617775542298

Agent workflow:
1. new_page({ url: 'https://x.com/unvalley_/status/2005899617775542298' })
2. wait_for({ text: 'Reply' })
3. take_snapshot() - to see page structure
4. evaluate_script() - extract tweet text, author, media type
5. If video: seek to 10s and pause
6. take_screenshot() - capture the visual
7. Save screenshot to local file (screenshot is returned as base64)
8. Create Notion page with extracted data + screenshot file

Saving Screenshot to Notion

Important: Notion's files property requires external URLs. The workflow is:

1. Take screenshot with Chrome MCP (returns base64)
2. Save to a publicly accessible location (e.g., upload to S3, Cloudinary, or use a temp file host)
3. Add the URL to the Notion page's Screenshot field

// After taking screenshot, you'll get base64 data
// Save it locally first:
const fs = require('fs');
const screenshotPath = `/tmp/tweet-${Date.now()}.png`;
fs.writeFileSync(screenshotPath, Buffer.from(base64Data, 'base64'));

// Then upload to your preferred hosting and get URL
// Finally, create Notion page with the screenshot URL

Quick Reference: Chrome MCP Tools for Tweet Capture

Troubleshooting Screenshots

"Tweet not loading"

• Check if logged into Twitter in Chrome profile
• Twitter may require login for some content
• Try wait_for with longer timeout

"Video won't seek"

• Some videos are streaming and don't support seeking
• Try clicking play first, then waiting 10 seconds naturally
• Use setTimeout in evaluate_script if needed

"Screenshot is blank"

• Wait longer for content to render
• Check if page has overlay/modal blocking content
• Try fullPage: true to capture everything

"Can't upload to Notion"

• Notion files require external URLs
• Use a file hosting service (S3, Cloudinary, imgur)
• Or embed screenshot as image in page content instead