Update CLI command descriptions and testing prompts

[vcolin7]

What does this PR do?

Enhance clarity of CLI extension command descriptions and update prompts for manual testing. Revise azure-rules.txt to disambiguate when to use the extension tools for Azure CLI commands from bestpractices.

GitHub issue number?

Fixes: #1987

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
  • Validate README.md changes using script at eng/scripts/Process-PackageReadMe.ps1. See Package README
  • Updated command list in /servers/Azure.Mcp.Server/docs/azmcp-commands.md and/or /docs/fabric-commands.md
  • Run .\eng\scripts\Update-AzCommandsMetadata.ps1 to update tool metadata in azmcp-commands.md (required for CI)
  • 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 tools with new names, including new tools or renamed tools, update consolidated-tools.json
  • For renamed tools, follow the Tool Rename Checklist and tag the PR with the breaking-change label
  • 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 updates the Azure MCP Server’s “extension/CLI” tool descriptions and related guidance/prompts to better steer tool selection toward extension_cli_generate / extension_cli_install, addressing issue #1987.

Changes:

• Refines extension area and CLI command descriptions to more explicitly mention az/azd/func/azqr.
• Updates azure-rules.txt to prioritize extension tools for CLI-related user requests.
• Adjusts Azure CLI e2e test prompts to better trigger the intended extension tools.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
tools/Azure.Mcp.Tools.Extension/src/ExtensionSetup.cs	Updates the extension/cli command group descriptions for improved clarity and routing.
tools/Azure.Mcp.Tools.Extension/src/Commands/CliInstallCommand.cs	Revises tool description text for CLI install guidance.
tools/Azure.Mcp.Tools.Extension/src/Commands/CliGenerateCommand.cs	Revises tool description text for Azure CLI command generation guidance.
tools/Azure.Mcp.Tools.Extension/src/Commands/AzqrCommand.cs	Condenses/rewrites azqr tool description text.
servers/Azure.Mcp.Server/src/Resources/azure-rules.txt	Updates server rules to route CLI-related intents to extension tools first.
servers/Azure.Mcp.Server/docs/e2eTestPrompts.md	Updates e2e prompts for Azure CLI to better trigger extension tools.

[vcolin7]

I've successfully tested all of the manual prompts reported in the original issue:

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