PromptLog — Version Control for Your Prompts

Developers iterate on prompts constantly—tweaking wording, adding constraints, changing formats—but never track what changed or what worked. When a prompt stops working, there's no history to revert to.

PromptLog is a CLI that captures prompts from your clipboard and stores them with version history and diffs. Copy a prompt, run

promptlog save code-review --note "added naming rules"

and it's versioned. Later, run

promptlog diff code-review

to see what changed between versions.

Built with @clack/prompts for a polished terminal UI, it includes security warnings for accidentally copying API keys, relative timestamps, and one-command installs via npm.

To get started using it install via:

npm install -g promptlog

Inspired by my own workflow: I kept losing good prompts after iterating past them. Now I don't.