BUG: UI hangs when running mcp_add_memory_tctnzi tool

OS: macOS 26.4.1

Version: BoltAI 2.12.1 (build 68) - Setapp

LLM: Anthropic Claude Sonnet 4.6

I instructed the LLM to commit something in particular to memory.

It appears to have called the mem0-memory-mcp server installed. Although it’s not clear to me if that’s what Bolt tried to use, or whether it’s using the built-in Bolt memory tool. I can see in the UI what you see in attached screenshot.

The conversation hang after it tried to use this memory tool. I had to manually terminate the hung prompt response.

I can see that the number of memories in the Bolt Memory tool didn’t increase. So if that is the memory system it’s utilising in this chat, the hung attempt to add a memory did not get so far as actually adding a memory.