Enable GitHub Copilot automatic PR reviews

[Copilot]

What does this PR do?

Enables GitHub Copilot automatic PR reviews by implementing configuration files and documentation. Analyzed microsoft/mcp repository for comparison and created comprehensive setup infrastructure.

Key additions:

• PR template (.github/PULL_REQUEST_TEMPLATE.md) - Structured checklists for CLI/template/extension changes
• Enhanced Copilot instructions - Added PR review guidelines and coding standards section
• Setup documentation (.github/COPILOT_REVIEW_SETUP.md) - Step-by-step admin guide for enabling automatic reviews via repository rulesets
• Comparison analysis (.github/COPILOT_COMPARISON.md) - Detailed feature comparison with microsoft/mcp, documents architectural decisions
• Quick reference (.github/QUICK_REFERENCE.md) - Condensed guide for contributors, reviewers, and admins

Comparison with microsoft/mcp:

Feature	azure-dev	microsoft/mcp
PR template	✅ Created	✅ Exists
Copilot instructions	✅ Enhanced (264 lines)	✅ Concise (~50 lines)
Setup workflow	✅ copilot-setup-steps.yml	❌ None
Documentation	✅ 4 guides	❌ None
Event processor	⚠️ Check enforcer	✅ Advanced automation

To activate: Repository admins configure rulesets per .github/COPILOT_REVIEW_SETUP.md (Settings → Rules → Rulesets → Enable "Automatically request Copilot code review").

GitHub issue number?

Related to improving PR review workflow and code quality automation.

Pre-merge Checklist

• Required for All PRs

  • Read contribution guidelines
  • PR title clearly describes the change
  • Commit history is clean with descriptive messages
  • Added comprehensive tests for new/modified functionality
  • Code follows repository standards (see .github/copilot-instructions.md)
  • All checks pass (formatting, linting, tests)

• For azd CLI changes (cli/azd/):

  • Ran gofmt -s -w . from cli/azd/ directory
  • Ran golangci-lint run ./... from cli/azd/ directory
  • Ran cspell lint "**/*.go" --relative --config ./.vscode/cspell.yaml --no-progress from cli/azd/ directory
  • All Go files include standard copyright header
  • Updated cli/azd/CHANGELOG.md for user-facing changes (features, bug fixes, breaking changes)
  • Ran go test ./... -short (allow up to 10 minutes)
  • Updated snapshot tests if CLI help output changed (set UPDATE_SNAPSHOTS=true)

• For template changes (templates/):

  • Tested template deployment end-to-end
  • Updated template documentation

• For extension changes (ext/):

  • Tested extension functionality
  • Updated extension documentation

Additional Notes

Documentation-only change. No code changes, hence no CHANGELOG update required. Live testing requires admin permissions to configure repository rulesets.

Files modified: 7 files, 739 lines added

• 5 new documentation files
• Enhanced copilot-instructions.md (+23 lines)
• Updated cspell.yaml for new terms

Original prompt

---

This section details on the original issue you should resolve

<issue_title>enable Copilot for PR initial review</issue_title>
<issue_description>Azure MCP has copilot for initial review when a PR is opened. Compare the copilot instruction from our repo vs https://github.com/microsoft/mcp repo and list a table for differences on copilot functions. Create related code and instruction that allow copilot to be triggered and generate initial PR review. </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes enable Copilot for PR initial review #6170

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.