Coding agents are great at the first 80% of UI. But for that last 20%, when you need to make tweaks for final polish, you end up constantly re-prompting it... it's a sledgehammer when you need a scalpel. The best of both worlds is to do the first draft with the agent and then directly fine-tune it by hand with visual tools.
We built Handle, a simple open source MCP + Chrome extension to solve this. We hope it's useful to the community!
Ask us anything, give us feedback, or share how your AI-powered development workflow is changing. We’ll be around to chat all day.
About Handle Extension on Product Hunt
“Refine UI in the browser, feed changes to your coding agent”
Handle Extension launched on Product Hunt on April 5th, 2026 and earned 147 upvotes and 20 comments, placing #6 on the daily leaderboard. Point and fix. Refine UI directly in your browser instead of endlessly re-prompting your agent. Works with Claude Code, Codex, Cursor and others.
On the analytics side, Handle Extension competes within Chrome Extensions, Open Source, Developer Tools and GitHub — topics that collectively have 673.1k followers on Product Hunt. The dashboard above tracks how Handle Extension performed against the three products that launched closest to it on the same day.
Who hunted Handle Extension?
Handle Extension was hunted by fmerian. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
fmerian
Hey Product Hunt! 👋 I’m Derek, founder of Handle.
Coding agents are great at the first 80% of UI. But for that last 20%, when you need to make tweaks for final polish, you end up constantly re-prompting it... it's a sledgehammer when you need a scalpel. The best of both worlds is to do the first draft with the agent and then directly fine-tune it by hand with visual tools.
We built Handle, a simple open source MCP + Chrome extension to solve this. We hope it's useful to the community!
Ask us anything, give us feedback, or share how your AI-powered development workflow is changing. We’ll be around to chat all day.