diffcheck

# Diffcheck Create shareable Diffchecker URLs from the CLI using `diffcheck`. If `diffcheck` is not found, install it first: `uv tool install diffchecker-skill` ## Setup ```bash # Store your session cookie (one-time, optional — works without auth too) diffcheck login '<diffsession_cookie_value>' diffcheck whoami ``` ## Commands ```bash # Compare two files diffcheck diff file1.txt file2.txt # Compare with title and expiry diffcheck diff old.py new.py --title "refactor auth" --expiry 1_week # Compare inline text diffcheck diff --left-text "hello world" --right-text "hello earth" dummy # Pipe left from stdin, right from file cat old_version.py | diffcheck diff - new_version.py --title "migration changes" # Full JSON response diffcheck diff a.txt b.txt --json # Private diff diffcheck diff a.txt b.txt --private ``` ## Expiry Options `1_hour`, `1_day` (default), `1_week`, `1_month`, `forever` ## Typical Workflow When the user asks to share a diff or compare content: 1. Write left/right content to temp files if needed 2. Run `diffcheck diff <left> <right> --title "descriptive title"` 3. Return the URL to the user Example with git changes: ```bash git diff HEAD~1 -- path/to/file > /tmp/old.txt git show HEAD:path/to/file > /tmp/new.txt diffcheck diff /tmp/old.txt /tmp/new.txt --title "latest commit changes" ```