Add MCP schema changes for conformance testing demonstration

[Copilot]

Demonstrates three types of schema changes that MCP conformance testing detects: tool argument addition, resource removal, and prompt metadata modification.

Changes

Tool schema change (mcp_starter/tools.py)

• Added optional uppercase: bool = False parameter to hello tool
• Returns uppercased name when flag is set: f"Hello, {name.upper() if uppercase else name}! Welcome to MCP."

Resource removal (mcp_starter/resources.py)

• Removed example_file resource (file://example.md)
• Deleted 23 lines including function and markdown content

Prompt metadata change (mcp_starter/prompts.py)

• Updated greet prompt description: "Generate a greeting in a specific style" → "Generate a personalized greeting message with customizable style"

Documentation update (mcp_starter/server.py)

• Removed file://example.md reference from SERVER_INSTRUCTIONS

These changes exercise the conformance action's ability to detect breaking changes in tool signatures, resource availability, and prompt metadata.

Warning

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• astral.sh
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If you need me to access, download, or install something from one of these locations, you can either:

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Original prompt

This PR demonstrates MCP schema changes that will be detected by conformance testing.

Make these 3 specific changes:

1. Add a tool argument: In mcp_starter/tools.py, find the hello tool and add an optional uppercase boolean argument:

   • Add parameter uppercase: bool = False
   • Update the function body to return f"Hello, {name.upper() if uppercase else name}! Welcome to MCP."

2. Remove a resource: In mcp_starter/resources.py, completely remove the example_file function decorated with @mcp.resource("file://example.md"). This removes the example.md resource.

3. Change a prompt description: In mcp_starter/prompts.py, find the greet prompt and change its description from "Generate a greeting in a specific style" to "Generate a personalized greeting message with customizable style"

These changes demonstrate what the conformance action detects:

• Tool schema changes (new argument)
• Resource removal
• Prompt metadata changes

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