Add a command listing all the tool names

[fanyang-mono]

What does this PR do?

Add a command listing all the tool names. This will come handy when using --tool option to specify tools to be included.

GitHub issue number?

N/A

Pre-merge Checklist

• Required for All PRs
  • Read contribution guidelines
  • PR title clearly describes the change
  • Commit history is clean with descriptive messages (cleanup guide)
  • Added comprehensive tests for new/modified functionality
  • Updated servers/Azure.Mcp.Server/CHANGELOG.md and/or servers/Fabric.Mcp.Server/CHANGELOG.md for product changes (features, bug fixes, UI/UX, updated dependencies)
• For MCP tool changes:
  • One tool per PR: This PR adds or modifies only one MCP tool for faster review cycles
  • Updated servers/Azure.Mcp.Server/README.md and/or servers/Fabric.Mcp.Server/README.md documentation
  • Updated command list in /servers/Azure.Mcp.Server/docs/azmcp-commands.md and/or /docs/fabric-commands.md
  • For new or modified tool descriptions, ran ToolDescriptionEvaluator and obtained a score of 0.4 or more and a top 3 ranking for all related test prompts
  • For new tools associated with Azure services or publicly available tools/APIs/products, add URL to documentation in the PR description
• Extra steps for Azure MCP Server tool changes:
  • Updated test prompts in /servers/Azure.Mcp.Server/docs/e2eTestPrompts.md
  • 👉 For Community (non-Microsoft team member) PRs:
    • Security review: Reviewed code for security vulnerabilities, malicious code, or suspicious activities before running tests (crypto mining, spam, data exfiltration, etc.)
    • Manual tests run: added comment /azp run mcp - pullrequest - live to run Live Test Pipeline

[Copilot]

Pull Request Overview

This PR adds a new command to list all available tool names in the Azure MCP server. The command provides a simple enumeration of tool names without descriptions or metadata, making it useful for quick discovery and automated tool enumeration, particularly when using the --tool option to specify tools.

• Introduces a new list-names command under the tools area
• Adds necessary infrastructure for JSON serialization and dependency injection
• Creates minimal options class as the command requires no additional parameters

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
core/Azure.Mcp.Core/src/Models/ModelsJsonContext.cs	Adds JSON serialization support for the new command's result type
core/Azure.Mcp.Core/src/Areas/Tools/ToolsSetup.cs	Registers the new command in the dependency injection container and command group
core/Azure.Mcp.Core/src/Areas/Tools/Options/ToolsListNamesOptions.cs	Creates empty options class for the new command
core/Azure.Mcp.Core/src/Areas/Tools/Commands/ToolsListNamesCommand.cs	Implements the main command logic to list all tool names

[joshfree]

Since the PR doesn't pass CI, let's hold this until after the October stabilization period