Models do not appear to receive "description_for_model" field from plugins.

[ryanhulsker]

What happened?

I have been troubleshooting a problem where some models do not like to use a plugin i am developing. It appears as though they never receive the "description_for_model" field defined in the plugin.

Not being familiar with the code base I simply started asking the models what instructions they received and they are pretty consistent (tried both sonet-3.7 and gemini 2.5) in reporting that they did not get the detailed instructions i put in "description_for_model", I also tried this with the Wolfram plugin which has a lot of instructions there, and they do not seem to get those instructions.

I am happy to work on this myself this week, however I am not too familiar with the project and could use some pointers where to start looking.

Version Information

I am running from source, updated every day.
$ git rev-parse HEAD
74eda21

Steps to Reproduce

1. Build an agent with the Wolfram plugin enabled.
2. Ask the agent to repeat back in detail all instructions it received about the plugin.
3. Interrogate the agent about the plugin
4. Observe that the agent does not know how to use the plugin properly

What browsers are you seeing the problem on?

Chrome

Relevant log output

Me: Can you repeat back the JSON definition of the plugin available?

Claude:
{
    "description": "Access files on a developers workstation",
    "name": "davinci-project-files",
    "parameters": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
            "file_path": {
                "description": "The path of the file you want to retrieve",
                "type": "string"
            },
            "function": {
                "description": "The function to run.",
                "enum": ["getProjects", "getProjectTree", "getProjectFile"],
                "type": "string"
            },
            "project_name": {
                "description": "The name of the project to retrieve the file/tree for.",
                "type": "string"
            }
        },
        "required": ["function"],
        "type": "object"
    }
}


Gemini:

def wolfram(
    input: str,
) -> dict:
  """WolframAlpha offers computation, math, curated knowledge, and real-time data. It handles natural language queries and performs complex calculations.
    Follow the guidelines to get the best results.

  Args:
    input: Natural language query to WolframAlpha following the guidelines
  """

Screenshots

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[danny-avila]

description_for_model is deprecated, I'll update those instructions soon to use the proper field description or schema field descriptions.