Update suggest-awesome-github-copilot-agents.prompt.md to detect and update outdated agents

[yaooqinn]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, or chat mode file in the correct directory.
• The file follows the required naming convention.
• The content is clearly structured and follows the example format.
• I have tested my instructions, prompt, or chat mode with GitHub Copilot.
• I have run npm start and verified that README.md is up to date.

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Description

This PR enhances the suggest-awesome-github-copilot-agents.prompt.md to add functionality for detecting and updating outdated local agents against the upstream awesome-copilot repository.

Key Enhancements:

• Version Comparison: Automatically fetches and compares local agent files with their remote counterparts using raw GitHub URLs
• Three-State Status System:
  • ✅ Already installed and up-to-date
  • ⚠️ Installed but outdated (with specific differences noted)
  • ❌ Not installed in repo
• Detailed Difference Detection: Identifies specific changes in front matter, tools configuration, and content
• Update Support: Provides instructions for updating outdated agents while preserving local file structure
• Enhanced Output: Shows side-by-side comparison with rationale for updates

Motivation:

Previously, the prompt could only identify if an agent was installed or not. This enhancement enables users to keep their local agents synchronized with the latest versions from the awesome-copilot repository, ensuring they benefit from improvements, bug fixes, and new features.

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Type of Contribution

• New instruction file.
• New prompt file.
• New chat mode file.
• New collection file.
• New skill file.
• Update to existing instruction, prompt, chat mode, collection or skill.
• Other (please specify):

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Additional Notes

The prompt has been enhanced with:

1. A new "Version Comparison Process" section detailing how to fetch and compare remote versions
2. Updated process flow (steps 4-5 added for version comparison)
3. New "Update Handling" section with instructions for managing outdated agents
4. Example output showing the new ⚠️ status for outdated agents
5. Updated requirements to include version comparison capabilities

This change maintains backward compatibility while adding significant new functionality for agent lifecycle management.

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.

[Copilot]

Pull request overview

This PR enhances the agent suggestion prompt to detect and update outdated local agents by comparing them with their upstream versions in the awesome-copilot repository. The enhancement enables users to keep their local agents synchronized with the latest versions.

Changes:

• Added version comparison functionality to identify outdated agents
• Introduced a new ⚠️ status icon for installed but outdated agents
• Added detailed comparison instructions for remote vs local agent content (front matter, tools, content)

[Copilot]

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