Cross-Post

Cross-post content to Twitter/X, Reddit, and LinkedIn from one prompt. Use when user wants to publish the same content to multiple social platforms, schedule social posts, or post to Twitter/X + Reddit + LinkedIn at once. Supports thread posting on Twitter, custom titles/subreddits on Reddit, and professional formatting for LinkedIn. Use when user says post this, publish to social, cross-post, share on twitter/reddit/linkedin, or post to all my platforms.

Post content to Twitter/X, Reddit, and LinkedIn via official APIs.

Setup

First time use:

bash

python3 scripts/cross_post.py init-config

Config stored at ~/.config/cross-post/config.json.

Usage

bash

# Post to all platforms
python3 scripts/cross_post.py post "Your content here"

# Post to specific platform
python3 scripts/cross_post.py post "Content" -p twitter

# Post as Twitter thread
python3 scripts/cross_post.py post "Long content..." -p twitter --thread

# Post to Reddit with title
python3 scripts/cross_post.py post "Body text" -p reddit -t "Title" -s python

# Read from file
python3 scripts/cross_post.py post -f draft.txt

# Preview formatting
python3 scripts/cross_post.py preview "Content" -p twitter
python3 scripts/cross_post.py preview "Content" -p reddit
python3 scripts/cross_post.py preview "Content" -p linkedin

Platform Requirements

Twitter/X

• Bearer Token (API v2)
• User ID
• Setup: developer.twitter.com

Reddit

• Client ID, Client Secret, Username
• Password via REDDIT_PASSWORD env var
• Setup: reddit.com/prefs/apps

LinkedIn

• Access Token
• Person URN
• Setup: developers.linkedin.com

Tips

• Use --thread for long Twitter content (auto-splits at 280 chars)
• Use --file to post from files
• Use preview before posting to check formatting
• Each platform has different length limits:
  • Twitter: 280 chars per tweet
  • Reddit: 100 char title, unlimited body
  • LinkedIn: 3000 chars

Security

Config file is chmod 600. Never commit config.json.