Power Platform Community Forum Thread Details

I am trying to setup a child agent that will call dataverse to fetch data. I specify my filter in my instructions. It looks like this:

Get data with tool /Get_data_from_dataverse where xxx_name eq '{section_name}' and xxx_version eq '{version}'

The problem is that the agent is unable to map reliably my input variables. I tried referencing the variables with '/' -> 'variables' but I only see system variables. Is this by design? Is there a way to map it?

UPDATE 2026-02-24

I was able to add the variable to the instructions by typing '/Topic.Input.version'. Then the variable started to appear. However, I don't if it's related to my variable name, the agent never maps the value. I tried other ways to specify the value. The agent just put a random value there.

Categories:

Autonomous agents

Hello Admin.Nick2,
Generative agents may produce incorrect parameter values if instructions are unclear.

Quick Fix:

Be very clear with instructions:
Make sure to use the EXACT input values.
xxx_name = {Topic.section_name} (do not modify this)
xxx_version = {Topic.version} (do not modify this)
Manually pass variables from parent to child – they do not transfer automatically
Set input variables in the child agent’s settings first

Better Solution:

Avoid using agent instructions for filtering. Instead, use a Power Fx/Power Automate action:

Filter(dataverse_table,
xxx_name = Topic.section_name And
xxx_version = Topic.version
)

This approach is deterministic—no unexpected values, and results will always match exactly.

Generative agents are not reliable for precise data queries. For Dataverse operations, structured actions are recommended.