PromptDiff
git diff for your AI prompts — see exactly what changed and why it matters
Get Pro →Ever run into this?
Developers iterate on LLM prompts constantly but have no structured way to track what changed between versions. Copy-pasting into a text diff tool loses context, and git blame on prompt files tells you nothing about output impact. You end up guessing why a prompt regressed.
The fix
A CLI that versions your prompts in a local SQLite store, diffs any two versions side-by-side with semantic change highlighting, and lets you annotate each version with observed output quality notes.
What it does
- semantic diff: highlights changed instructions, added constraints, removed examples as typed change-classes not just line diffs
- local SQLite prompt store with tags and quality annotations per version
- side-by-side terminal diff with color coding for instruction-class changes (persona / constraint / format / example)