Getting an error in AI agent node (with Anthropic chat model)

Questions
1

I started to get error in AI Agent node. It has anthropic tool connected. Everything was working fine 3 days ago. Any ideas why?

Bad request - please check your parameters

tools.0.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_-]{1,64}$'

Error in this workflow

the output returned by the last node

[
  {
    "id": "rec2X9bBYFL24ZZ0b",
    "Title": "mytitle",
    "Description": "mydescr",
    "Keyword": "my keywords"
  }
]

Information on my n8n setup

  • n8n version: 1.86.1
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (n8n cloud):
  • Operating system:Linux
2

Hi,

I might be wrong but the keyword field doesn’t allow spaces as per the regex in the error.

Reg,
J.