Add new agent: expert-angular-frontend-engineer

[zshn-dev]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, agent, skill, or workflow 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, agent, skill, or workflow with GitHub Copilot.
• I have run npm start and verified that README.md is up to date.

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Description

This agent was created to deeply understand Angular's modern ecosystem and it provides:

• Complete, production-ready code examples with explanations
• Best practices for Angular Signals and zoneless applications
• Recommendations on when to use Signals vs observables
• Proper TypeScript typing throughout
• Accessibility considerations built into solutions

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Type of Contribution

• New instruction file.
• New prompt file.
• New agent file.
• New plugin.
• New skill file.
• New agentic workflow.
• Update to existing instruction, prompt, agent, plugin, skill, or workflow.
• Other (please specify):

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Additional Notes

None

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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 introduces a new agent for Angular frontend development expertise and updates plugin configurations across the repository to use standardized directory path formats. The agent provides comprehensive guidance on modern Angular development practices, while the configuration changes improve consistency in how plugins reference their agents and skills folders.

Changes:

• Added a new expert-angular-frontend-engineer.agent.md agent specializing in modern Angular development
• Updated multiple plugin configurations to use "./agents" instead of listing individual agent files
• Standardized skill folder references to remove trailing slashes across all plugins

Reviewed changes

Copilot reviewed 139 out of 234 changed files in this pull request and generated no comments.

File	Description
agents/expert-angular-frontend-engineer.agent.md	New agent file providing Angular 21 expertise with Signals, zoneless change detection, and modern best practices
docs/README.agents.md	Added entry for the new Expert Angular Frontend Engineer agent to the documentation index
plugins/*/plugin.json	Updated to use "./agents" directory reference instead of individual file paths for cleaner configuration
plugins/*/plugin.json	Standardized skill folder references by removing trailing slashes (e.g., ./skills/skill-name instead of ./skills/skill-name/)