Reply to Posts -- Tutorial

Step-by-step guide to replying to posts on X using XActions browser scripts.

Prerequisites

• Logged into x.com in your browser
• Browser DevTools console (F12 -> Console tab)

Quick Start

1. Navigate to https://x.com/home or any search page
2. Open DevTools (F12) and go to the Console tab
3. Copy the contents of src/autoReply.js
4. Edit the CONFIG section (triggers, delays, dryRun)
5. Paste into the console and press Enter

Configuration

The CONFIG object at the top of src/autoReply.js controls all behavior:

Trigger/Reply Pairs

triggers: [
  {
    keywords: ['xactions', 'twitter automation'],
    reply: 'Check out XActions -- the complete X automation toolkit!',
  },
  {
    keywords: ['open source tools'],
    reply: 'Have you tried XActions? Great open source project.',
  },
],

Each trigger has an array of keywords (any match activates it) and a reply text that gets posted.

Targeting Options

Limits and Safety

Step-by-Step Guide

Manual Reply (No Script)

To reply to a single post manually via the console:

// Click the reply button on the first visible tweet
document.querySelector('article[data-testid="tweet"] [data-testid="reply"]').click();

After the reply dialog opens, type your reply and click send.

Automated Replies with autoReply.js

Step 1: Start with a Dry Run

Always start with dryRun: true (the default). This logs what the script would do without posting anything.

const CONFIG = {
  triggers: [
    {
      keywords: ['AI agents', 'LLM tools'],
      reply: 'Great point! AI agents are changing everything.',
    },
  ],
  maxReplies: 5,
  dryRun: true,  // Preview only
};

Step 2: Review Dry Run Output

The console will show messages like:

[DRY] Would reply to @someuser: "Just discovered this amazing AI agent..."
  Reply: "Great point! AI agents are changing everything. [emoji]"

Step 3: Go Live

Once you are satisfied with the dry run results, change dryRun to false:

dryRun: false,

Re-paste the script. The script will now actually post replies.

Step 4: Monitor Progress

The script logs each reply:

#1 Replied to @someuser: "Great point! AI agents are..."

And shows a summary when done:

Replied: 5
Time: 312s
Total tracked: 5

Targeting Specific Users

To only reply to tweets from certain accounts:

fromUsers: ['nichxbt', 'openai'],
ignoreUsers: ['spambot123'],

Engagement-Based Targeting

To only reply to tweets with some traction but skip viral ones:

minLikes: 5,
maxLikes: 1000,

Tips & Tricks

• Always start with dryRun: true to preview before posting real replies.
• Keep delays high (30-60 seconds minimum). Rapid replies trigger spam detection.
• Vary your reply text by adding multiple trigger/reply pairs. Identical replies get flagged.
• The addRandomEmoji option appends a random emoji to each reply for natural variation.
• Reply tracking is stored in localStorage under xactions_autoreplied, so the script skips tweets it already replied to across sessions.
• Navigate to a search page like x.com/search?q=AI+agents to target specific topics instead of your home timeline.

Troubleshooting

Related Scripts

• src/likePost.js -- Like posts by URL or keyword
• src/quoteTweetAutomation.js -- Quote tweet with commentary
• src/mentionUsers.js -- Mention multiple users in a post
• src/automation/autoLiker.js -- Auto-like posts (requires core.js)