Zookeeper slow and 'Too many connections' errors

I’ve been experimenting with Zookeeper for a simple 3D modeling task and running into what seems like a broken state. Happy to share more details for debugging.

What I’m trying to build
Two solid pillars connected by a U-shaped arch with pins on top.

What’s happening

  • The agent has been running for ~30 minutes to get meaningful output. It appears to loop between “thinking” steps without making progress.
  • I’m hitting a connection limit error repeatedly:
    KCL Engine error: Too many active connections, only 2 allowed per user
  • I also noticed that get_docs doesn’t seem to return constraints according to the thinking output. This might be separate issue.

Questions

  1. Is Zookeeper currently stable, or is there a known bug causing this loop behavior?
  2. Is the connection limit (2 per user) a hard cap, or can it be raised?
  3. Is the get_docs constraint issue a known limitation?

Context
I’m exploring this both for personal use and as a potential commercial integration. So understanding the current stability level matters for my planning.

Thanks for any pointers!

Hi Benedikt,

Thank you for your message. We really appreciate you trying our product and sharing your experience! To answer your points:

  • Reducing Zookeeper’s speed is something we are actively working to improve. As expected, there is a tradeoff with generation accuracy, but it is one of our main priorities to try to make it faster without compromising the latter.
  • We are aware of the KCL Engine error: Too many active connections, only 2 allowed per user, and are currently working towards a permanent fix for it. However, in most cases we’ve seen, Zookeeper should still proceed with generations despite this.
  • The get_docs error was an issue with Zookeeper’s ability to retrieve the correct, updated documentation. However, this is now resolved, and Zookeeper now instead shows calls such as search_knowledge and read_knowledge as part of a larger retrieval effort.

Thank you once again for using Zookeeper and apologize for the inconveniences faced as we work to fix them. Please share any additional feedback or questions you’ll have going forward.

Best,

  • Karan