Agent skill

Copilot Code Coach

by timothywarner in timothywarner/chatgptclass

Socratic coding tutor powered by GitHub Copilot. An agent skill from timothywarner/chatgptclass.

Custom licenceAuto-check passedDevelopment

Install Copilot Code Coach

skills CLI
$ npx skills add timothywarner/chatgptclass --skill copilot-code-coach -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install timothywarner/chatgptclass copilot-code-coach --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/timothywarner/chatgptclass.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/copilot-code-coach .claude/skills/copilot-code-coach && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
copilot-code-coach
GitHub stars
143
Token cost
~1.9k tokens
SKILL.md length
460 words
Files
6
Skills in repo
2
Repo updated
First seen
Licence
Custom licence

At a glance

Socratic coding tutor powered by GitHub Copilot. An agent skill from timothywarner/chatgptclass.

  • Works in 5 steps: Read the selected code with the codebase… → Identify the one-sentence purpose of the… → Walk through each logical block in… → …
  • : explain this code
  • SKILL.md covers Invocation Triggers, Mode 1 - Explain Mode, Mode 2 - Exercise Generator and Mode 3 - Teaching Review
  • Runs Python and PowerShell scripts from its folder

What it does

Copilot Code Coach is an agent skill from timothywarner/chatgptclass. Socratic coding tutor powered by GitHub Copilot. Explains code in plain English using the Feynman technique, generates tiered practice exercises, annotates code reviews with teaching rationale (not just fixes), walks through debugging step-by-step, and produces before/after refactoring narratives. USE FOR: "explain this code", "what does this do", "help me understand", "generate practice exercises", "teach me about [concept]", "code review for learning", "why does this work", "debug with me", "refactor and…

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files (for example `examples.md`, `sample-code/before-refactor.py` and `sample-code/debuggable.py`).

It sits in Development, covering Tutoring and explanations, Refactoring and Code review. The repository describes itself as: ChatGPT and GitHub Copilot in Four Hours.

When your agent uses it

  • : explain this code
  • What does this do
  • Help me understand
  • Generate practice exercises

Example prompts

  • “explain this code”
  • “what does this do”
  • “help me understand”
  • “/copilot-code-coach”

Requirements

  • Python 3
  • PowerShell

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Read the selected code with the codebase tool if no selection is active.
  2. Identify the one-sentence purpose of the code.
  3. Walk through each logical block in order, naming
  4. End with a Mental Model Summary: a 3-bullet analogy to something non-technical.
  5. Offer 2 follow-up questions the learner could ask to go deeper.

What it can do on your machine

Read from SKILL.md and the folder at commit edcb19e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Python and PowerShell), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Copilot Code Coach loads about 1.9k tokens when it runs. Until then it costs about 160 tokens; SKILL.md has 460 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~160
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 460 words (~1,878 tokens).

“You are a patient, Feynman-method coding tutor working alongside a learner inside VS Code. Your job is never to just hand over correct code - it is to make the learner understand why the code works, what trade-offs were made…”

— opening of SKILL.md by timothywarner, Custom licence
name
copilot-code-coach

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files in .github/skills/copilot-code-coach of timothywarner/chatgptclass.

  • SKILL.md
  • examples.md
  • sample-code/before-refactor.py
  • sample-code/debuggable.py
  • sample-code/explain-me.ps1
  • sample-code/security-demo.py

Open the folder on GitHubat commit edcb19e

Compare with similar skills

Copilot Code Coach next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Copilot Code Coach compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Copilot Code Coach this skilltimothywarner/chatgptclass143—~1.9kAutomated safety check: PassCustom licence
Memstack Development Mentorcwinvestments/memstack423—~1.6kAutomated safety check: PassMIT
Cyclomatic Complexitysaurabhkumar8112/cyclomatic-complexity-skill405—~761Automated safety check: PassApache-2.0
Code Review Graph Navigatorhandsontable/handsontable22k—~939Automated safety check: PassCustom licence
Software Design Philosophyluoling8192/software-design-philosophy-skill344—~3.4kAutomated safety check: PassMIT
RoamCranot/roam-code517—~2.4kAutomated safety check: PassApache-2.0

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Categories

Questions about Copilot Code Coach

What does Copilot Code Coach do?

Socratic coding tutor powered by GitHub Copilot. An agent skill from timothywarner/chatgptclass. Copilot Code Coach is an agent skill from timothywarner/chatgptclass. Socratic coding tutor powered by GitHub Copilot.

When should I use Copilot Code Coach?

Copilot Code Coach fits situations like: : explain this code; what does this do; help me understand; generate practice exercises.

How do I install Copilot Code Coach in Claude Code?

Run `npx skills add timothywarner/chatgptclass --skill copilot-code-coach -a claude-code`. Or copy the skill folder (.github/skills/copilot-code-coach in timothywarner/chatgptclass) into .claude/skills/copilot-code-coach in your project. Claude Code loads it when a task matches its description.

How do I install Copilot Code Coach in Codex?

Run `npx skills add timothywarner/chatgptclass --skill copilot-code-coach -a codex`. Or copy the skill folder (.github/skills/copilot-code-coach in timothywarner/chatgptclass) into .agents/skills/copilot-code-coach in your project. Codex loads it when a task matches its description.

Can I use Copilot Code Coach in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add timothywarner/chatgptclass --skill copilot-code-coach -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/copilot-code-coach, .gemini/skills/copilot-code-coach, .github/skills/copilot-code-coach and .opencode/skills/copilot-code-coach in your project.

What does Copilot Code Coach need to run?

Going by SKILL.md and its folder, Copilot Code Coach needs Python and PowerShell for the scripts in its folder. Our summary lists: Python 3; PowerShell.

Does Copilot Code Coach access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Copilot Code Coach safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Copilot Code Coach use?

Copilot Code Coach has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Copilot Code Coach use?

About 1.9k tokens (SKILL.md is roughly 7.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Copilot Code Coach?

Skills that share tags, products or a category with Copilot Code Coach: Memstack Development Mentor (cwinvestments/memstack, 423 stars), Cyclomatic Complexity (saurabhkumar8112/cyclomatic-complexity-skill, 405 stars), Code Review Graph Navigator (handsontable/handsontable, 22k stars) and Software Design Philosophy (luoling8192/software-design-philosophy-skill, 344 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Copilot Code Coach?

timothywarner (a GitHub user) maintains it in timothywarner/chatgptclass, which has 143 GitHub stars. The repository holds 2 skills in this directory. The repository was last updated on September 19, 2026.

Source: timothywarner/chatgptclass on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.