AI products fail silently. Users get bad outputs, lose trust, and move on. Coolhand closes the loop. Add a single HTML attribute to any AI output in your product and we start capturing exactly how users react -- edits, rewrites, thumbs down, silence. Our Optimization Agent analyzes those patterns and delivers improvements as GitHub PRs -- no guesswork or sprint cycles required. Get started for free.

AI products fail silently. Users get bad outputs, lose trust, and move on. Coolhand closes the loop. Add a single HTML attribute to any AI output in your product and we start capturing exactly how users react -- edits, rewrites, thumbs down, silence. Our Optimization Agent analyzes those patterns and delivers improvements as GitHub PRs -- no guesswork or sprint cycles required. Get started for free.