Raindrop Workshop - Open source, free, local debugger for AI agents

Raindrop Workshop is the first local debugger for agents. It's free, local, and open source. Your local agent traces stream, token-by-token, instantly. Another Agent like Claude Code can read them over MCP. Then Claude can write evals, replay traces, fix bugs... and do it all over again. This is the Self-Healing Agent loop. And it’s only possible on Raindrop. Check it out and star on Github here:

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Hey PH! This is Alexis, Co-Founder of Raindrop.

Your agent fails at 1am, traces are in some SaaS dashboard, harness is on your machine, eval suite is in a third place, and Claude sees none of it.

We've been stuck in this loop. So we built our way out of it. Workshop is the first sane way to debug your agent locally.

It has two parts: a local UI and an MCP.

Every span streams live to a local browser UI and you can replay any agent run with edited prompts, models, and tools.

The MCP lets you create self-healing eval loops. Claude Code reads your traces, writes evals, and fixes what's broken.

It's free, open source, and works with all the agent SDKs you already use.

One command to install: curl -fsSL | bash

Excited to hear what you think!

Welcome to the self-improving agentic world. Very solid team, great launch. Congrats Alexis!

 It's a crazy world! Thanks so much Alex

This was so easy to integrate and view my agent traces. No more console logging!!

 huge!! love to hear it

Really excited about this! If I'm a fan of Vercel's AI SDK local debugger what should I expect from this one? Raindrop integration I assume?

 amazing! the biggest thing is that it exposes a local MCP so Claude can write evals, replay traces, fix bugs... and do it all over again in a self-healing loop

 this also allows you save traces, re-run from production, is compatible with pretty much any SDK (including Claude Code!) etc.

 Really really appreciate

What’s the easiest way to hook Raindrop into an existing agent project?

 great question, you can actually just run the command below and then call a skill from your coding agent and it will set it up!

1 curl -fsSL | bash

2 /instrument-agent in your coding agent

Let me know how it goes!

This is really interesting, excited to play with it

 excited to get your thoughts!

This is incredible! Using it to improve your prompting and execution is already a massive improvement, but your agent being able to use it itself just tightens the feedback loop. Huge!

 amazing to hear :)

We've been building an agent and this is exactly what we've been looking for! so excited to give this a spin

 so excited to get your feedback!

Finally, a proper debugger for the agent era. Bridging traces over to other agents via MCP is such a smart architectural move. I love the focus on local-first—it makes iterating on sensitive agent logic much more viable. Does Raindrop support custom visualizers for specific tool-call outputs yet?

 exactly! what are you looking for from the custom visualizer? it's also open source so we're excited to see what people contribute :)

Agents have been such a black box, you're all doing an amazing job and helping me make sense of building in the new world. Congratulations and thank you for this!

 thanks so much James!! Glad to hear its been useful :)

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