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difftastic
Use when the user wants a structural, syntax-aware diff between two source files or git revisions - a diff that parses each side as code (Rust, TS, Python, Go, …) and ignores reformatting, brace movement, or whitespace noise. Binary is difft; use for syntax-aware diffs, not plain file viewing.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.