feat(mentoring): A skill and an agent in order to help juniors in their work by understanding result and by teaching them

[fdescamps]

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 run build and verified that README.md is up to date.

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Description

This PR adds a new mentoring-juniors skill and its companion agent to help junior developers learn and improve their coding practices through Socratic mentorship.

Skill: skills/mentoring-juniors/

The skill provides a comprehensive Socratic mentoring methodology:

• Sensei persona — A patient, experienced mentor who guides through questions
• PEAR Loop — Plan, Explore, Analyze, Rewrite workflow for Copilot-assisted learning
• Progressive clue system — 4-level help from guided questions to detailed pseudocode
• 5-phase response protocol — Context → Socratic Questions → Concepts → Clues → Validation
• Teaching techniques — Rubber Duck Debugging, 5 Whys, Red-Green-Refactor
• 47 trigger keywords — Covers common junior expressions (I'm stuck, help me understand, ELI5, etc.)

Agent: agents/mentoring-juniors.agent.md

A companion agent that brings the same Socratic methodology directly into GitHub Copilot Chat:

• Model: gpt-4.1
• Tools: codebase, search, problems, editFiles, usages, and more
• Invocation: @Sensei - Junior Mentor in Copilot Chat
• Same persona, golden rules, and response protocol as the skill

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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

• Skill folder: skills/mentoring-juniors/
• Agent file: agents/mentoring-juniors.agent.md
• Validation: Passed npm run skill:validate
• README: Updated with npm run build
• Line endings: Normalized with bash scripts/fix-line-endings.sh
• Authors: Thomas Chmara (@AGAH4X) & François Descamps (@fdescamps)

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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.

[aaronpowell]

it looks like you've branched off the main branch, not staged meaning you have all the materialised plugin files.

You can fix this with:

git fetch origin staged
git rebase --onto origin/staged origin/main <your branch name>
git push --force-with-lease

Or by using the script npm run plugin:clean