X Composer

Prerequisites

• Google Chrome installed

• chrome-remote-interface

  npm package

npm install -g chrome-remote-interface

Workflow

1. Launch Chrome with CDP (run

   scripts/cdp-launch.js

   )
2. Wait for X.com compose page to load (~3s)
3. Type draft text (run

   scripts/cdp-type.js

   )
4. User reviews and clicks Post manually

Step 1: Launch Chrome

scripts/cdp-launch.js

NODE_PATH=$(npm root -g) node scripts/cdp-launch.js

https://x.com/compose/post

https://x.com/home

https://x.com/search?q=QUERY&f=live

~/.chrome-cdp-profile

Step 2: Type Draft

scripts/cdp-type.js

echo '[{"text":"Hello world!"}]' | NODE_PATH=$(npm root -g) node scripts/cdp-type.js

Segment Format

{"text": "string"}

{"enter": true}

{"enter": 2}

Example: Multi-paragraph post

cat << 'EOF' | NODE_PATH=$(npm root -g) node scripts/cdp-type.js
[
  {"text": "Hook line with emoji"},
  {"enter": 2},
  {"text": "Main content paragraph."},
  {"enter": 2},
  {"text": "- Point one"},
  {"enter": true},
  {"text": "- Point two"},
  {"enter": 2},
  {"text": "https://example.com"},
  {"enter": true},
  {"text": "#hashtag #tags"}
]
EOF

Step 3: User Posts

Troubleshooting

pkill -f "Chrome.*remote-debugging"

npm install -g chrome-remote-interface

~/.chrome-cdp-profile

Notes

• NODE_PATH=$(npm root -g)

  resolves globally installed

  chrome-remote-interface

• Input.insertText()

  handles emoji/unicode reliably (not character-by-character)
• Fixed

  --user-data-dir

  preserves login across Chrome restarts
• If text appears scrambled, restart Chrome and retry