Describe the bug
When using the Gemini 2.5 Pro model in Goose (v1.1.4 on Windows), I receive the following error on every single prompt, even basic ones like "Hi" or "Hello":

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Request failed: Request failed with status: 400 Bad Request.
Message: * GenerateContentRequest.tools[0].function_declarations[20].parameters.properties[url].format: only 'enum' and 'date-time' are supported for STRING type
This issue does not occur when using GPT-4 or other OpenAI models with the same prompt and extension configuration. The error appears to originate from a tool/function being registered with a parameter named url using an invalid format.

To Reproduce
Steps to reproduce the behavior:

Use Goose v1.1.4 on Windows

Enable extensions: Computer Controller, Developer, Fetch, Pdfreader, Tutorial, and Memory (see screenshot)

Select Gemini 2.5 Pro as provider/model

Type any prompt (e.g., "Hi")

Observe error: 400 Bad Request with message related to .parameters.properties[url].format

Expected behavior
Prompt should be processed normally. The Gemini model should return a response without error, as it does in other apps or via direct API access.

Screenshots
Error message screenshot

Enabled extensions screenshot

Please provide following information:
OS & Arch: Windows 11 x64

Interface: UI

Version: Goose v1.1.4

Extensions enabled: Computer Controller, Developer, Fetch, Pdfreader, Tutorial, Memory

Provider & Model: Google - gemini-2.5-pro

Other provider tested: OpenAI - gpt-4 (✅ works fine)

Additional context
This appears to be a schema validation issue specific to Gemini 2.5, which enforces stricter rules for function/tool parameters. It seems Goose or one of the enabled extensions is registering a tool with a parameter that includes:

"url": {
"type": "string",
"format": "url" // ❌ not allowed by Gemini 2.5
}

Only format: "enum" or format: "date-time" are supported on string types by Gemini. This needs to be stripped or replaced to ensure compatibility.

Please advise on a fix or patch. Happy to help test or dig deeper if needed.