Option for AI Agent to look for in a specified collection of articles for a workflow

If i have 3 Workflows for A, B, C, i would like Fibi AI agent to only look for in the corresponding collection of article.
If the workflow A is running, Fibi AI agent should only look in the A collection articles, etc.

Today he is mixing collection in this anwser leading to totally inconsitent answer.

We’ve tried to be strict in his prompt but it still happen sometimes.