Copilot Code Coach
timothywarner/chatgptclass
Socratic coding tutor powered by GitHub Copilot. An agent skill from timothywarner/chatgptclass.
A skill your agent uses when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language…
Install Memstack Development Mentor
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cwinvestments/memstack memstack-development-mentor --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/development/mentor .claude/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.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/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .claude/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cwinvestments/memstack/tree/master/skills/development/mentorType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cwinvestments/memstack memstack-development-mentor --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/development/mentor .agents/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .agents/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cwinvestments/memstack memstack-development-mentor --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/development/mentor .cursor/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .cursor/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cwinvestments/memstack.git --path skills/development/mentor--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cwinvestments/memstack memstack-development-mentor --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/development/mentor .gemini/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .gemini/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cwinvestments/memstack memstack-development-mentorInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/development/mentor .github/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .github/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cwinvestments/memstack --skill memstack-development-mentor -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cwinvestments/memstack memstack-development-mentor --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/development/mentor .opencode/skills/memstack-development-mentor && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "memstack-development-mentor" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/mentor into .opencode/skills/memstack-development-mentor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-mentor", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
memstack-development-mentor- GitHub stars
- 423
- Token cost
- ~1.6k tokens
- SKILL.md length
- 624 words
- Files
- 1
- Skills in repo
- 87
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language…
- The user says teach me
- SKILL.md covers Activation, Context Guard, How Mentor Mode Works and Narration Framework, plus 7 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Explain as you go
What it does
Memstack Development Mentor is an agent skill from cwinvestments/memstack. Use when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language narration of decisions and tradeoffs while building. Do NOT use for code review or debugging.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Text to speech and voice, Tutoring and explanations and Plain language and style rules. The repository describes itself as: Structured skill framework for Claude Code. 130 skills, persistent memory, TokenStack compression, localhost dashboard with 3-agent runner, real-time streaming, MCP tools. The licence is MIT.
When your agent uses it
- The user says teach me
- Explain as you go
- Walk me through
- Wants real-time plain language narration of decisions and tradeoffs while building
Example prompts
- “teach me”
- “explain as you go”
- “mentor mode”
- “/memstack-development-mentor”
What it can do on your machine
Read from SKILL.md and the folder at commit 00370ce. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Memstack Development Mentor loads about 1.6k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 624 words of instructions outside code blocks.
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
The full file from cwinvestments/memstack at commit 00370ce, republished under its MIT licence (© cwinvestments). 624 words, ~1,550 tokens.
Download SKILL.mdSave it as
.claude/skills/memstack-development-mentor/SKILL.md (or your agent's skills folder).- name
- memstack-development-mentor
- description
- Use when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language narration of decisions and tradeoffs while building. Do NOT use for code review or debugging.
- version
- 1.0.0
Mentor: Activating mentor mode...
Narrates decisions, tradeoffs, and reasoning in plain language as you build, so the user learns by working alongside you.
Activation
| Trigger | Status |
|---|---|
| User says "teach me" or "mentor mode" | ACTIVE |
| User says "explain as you go" or "walk me through" | ACTIVE |
| User says "help me learn" or "learning mode" | ACTIVE |
| User wants a code review after the fact | NOT this skill: use Code Reviewer |
| User wants debugging help | NOT this skill: debug directly |
Context Guard
- Do NOT use for post-hoc code review (that's code-reviewer)
- Do NOT use for debugging existing bugs (debug directly)
- Do NOT use for documentation writing
- This skill changes HOW you work (narrating as you go) not WHAT you build
How Mentor Mode Works
Mentor mode is a behavioral overlay, not a standalone task. When active, it modifies how you approach ANY other task. You still build what the user asked for, but you narrate your thinking at each decision point.
The rule: Before every non-trivial action, explain WHY in 1-3 sentences. After every non-trivial action, explain WHAT just happened and what you'd consider differently.
Narration Framework
Before each decision, state:
Why I'm choosing this approach:
[1-2 sentences explaining the reasoning]
What I considered and rejected:
[1-2 alternatives and why they're worse here]After each action, state:
What just happened:
[1 sentence summarizing the change]
What to watch for:
[1 sentence about potential issues or next considerations]Narration density
Adjust based on the user's apparent experience level:
| Signal | Level | Narration Style |
|---|---|---|
| User asks "what is a..." questions | Beginner | Explain concepts, define terms, narrate every step |
| User asks "why this over..." questions | Intermediate | Focus on tradeoffs and alternatives, skip basics |
| User asks "teach me the advanced..." | Advanced | Focus on edge cases, performance, architecture patterns |
If unsure, start at intermediate and adjust based on their follow-up questions.
Decision Points to Narrate
Not every line of code needs explanation. Focus narration on these moments:
Architecture decisions
- "I'm putting this in a separate file because..."
- "This could be a class or a function, I'm choosing a function because..."
- "I'm using composition over inheritance here because..."
Library/tool choices
- "I'm using X instead of Y because in this context..."
- "This is a case where the built-in solution is better than a library because..."
- "I'd normally use X but your project already uses Y, so..."
Tradeoff moments
- "This is simpler but less performant, here's why simplicity wins here..."
- "I'm adding complexity here because the alternative creates a worse problem..."
- "This violates DRY but that's intentional because..."
Show full SKILL.md (250 more words)Show less
Error handling
- "I'm handling this error explicitly because it can actually happen when..."
- "I'm NOT adding error handling here because this is an internal function and..."
- "This try/catch is broad, normally I'd narrow it, but here..."
Naming choices
- "I named this X instead of Y because in 6 months you'll be looking for..."
- "This variable name is verbose on purpose because..."
Things to NEVER narrate
- Obvious syntax (importing modules, standard boilerplate)
- Things the user explicitly said they already know
- Trivial changes (fixing a typo, adjusting whitespace)
- Every single line, narrate decision points, not keystrokes
Adapting to feedback
| User says | Adjust |
|---|---|
| "I know that" / "skip the basics" | Increase level, narrate less frequently |
| "Wait, explain that" / "Why?" | Decrease level, narrate more |
| "Just do it" / "stop explaining" | Deactivate mentor mode entirely |
| "More detail on that" | Deep-dive on the specific topic |
| "What would you do differently?" | Explore 2-3 alternative approaches with tradeoffs |
Example narration in action
User: "Add authentication to this Express app"
[Before action]
Why I'm choosing this approach:
I'm using express-session with a session store rather than JWT because your app
already has a database and server-rendered pages, sessions are simpler here and
you don't need stateless auth for a single-server app.
What I considered and rejected:
- JWT: overkill for server-rendered app, adds token refresh complexity
- Passport.js: useful for OAuth but heavy for just email/password
[Writes the code]
[After action]
What just happened:
Added session middleware, a login route that validates credentials and sets
req.session.userId, and a requireAuth middleware that protects routes.
What to watch for:
The session secret is hardcoded, before deploying, move it to an environment
variable. Also, this stores sessions in memory which won't survive restarts.
We'll add a session store next.Ending mentor mode
Mentor mode stays active until:
- The user says "stop explaining" or "normal mode"
- The task is complete and no follow-up is requested
- The session ends
When ending, offer a summary:
Mentor session summary:
- Key decisions made: [list 3-5 major choices]
- Patterns used: [list architectural patterns]
- Things to study further: [1-2 topics worth deeper learning]Disambiguation
- "teach me" / "explain as you go" / "mentor mode" = Mentor
- "review this code" / "what's wrong with this" = Code Reviewer (not this skill)
- "fix this bug" / "why is this broken" = Debug directly (not this skill)
- "explain this file" / "what does this do" = Direct explanation (not this skill)
Level History
- Lv.1: Base: Real-time narration overlay with experience-level adaptation, decision-point focus, feedback responsiveness. (Origin: MemStack v3.5, Apr 2026)
© cwinvestments, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/development/mentor of cwinvestments/memstack.
Open the folder on GitHubat commit 00370ce
Compare with similar skills
Memstack Development Mentor 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Memstack Development Mentor this skillcwinvestments/memstack | 423 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Copilot Code Coachtimothywarner/chatgptclass | 143 | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| Code Walkthroughtestdouble/han | 279 | — | ~4.4k | Automated safety check: Pass | MIT | |
| Code MentorLeoYeAI/openclaw-master-skills | 2.2k | — | ~6.3k | Automated safety check: Pass | MIT | |
| ReviewSethGammon/Citadel | 922 | — | ~2.1k | Automated safety check: Pass | MIT | |
| Rtl Equivalence CheckerArabelaTso/Skills-4-SE | 253 | — | ~2.5k | Automated safety check: Pass | Apache-2.0 |
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Categories
Questions about Memstack Development Mentor
What does Memstack Development Mentor do?
A skill your agent uses when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language…. Memstack Development Mentor is an agent skill from cwinvestments/memstack. Use when the user says 'teach me', 'explain as you go', 'mentor mode', 'walk me through', 'help me learn', 'explain why', 'learning mode', or wants real-time plain language narration of decisions and tradeoffs while building.
When should I use Memstack Development Mentor?
Memstack Development Mentor fits situations like: the user says teach me; explain as you go; walk me through; wants real-time plain language narration of decisions and tradeoffs while building.
How do I install Memstack Development Mentor in Claude Code?
Run `npx skills add cwinvestments/memstack --skill memstack-development-mentor -a claude-code`. Or copy the skill folder (skills/development/mentor in cwinvestments/memstack) into .claude/skills/memstack-development-mentor in your project. Claude Code loads it when a task matches its description.
How do I install Memstack Development Mentor in Codex?
Run `npx skills add cwinvestments/memstack --skill memstack-development-mentor -a codex`. Or copy the skill folder (skills/development/mentor in cwinvestments/memstack) into .agents/skills/memstack-development-mentor in your project. Codex loads it when a task matches its description.
Can I use Memstack Development Mentor 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 cwinvestments/memstack --skill memstack-development-mentor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/memstack-development-mentor, .gemini/skills/memstack-development-mentor, .github/skills/memstack-development-mentor and .opencode/skills/memstack-development-mentor in your project.
What does Memstack Development Mentor need to run?
SKILL.md names no scripts, command-line tools or credentials: Memstack Development Mentor is instructions for the agent only.
Does Memstack Development Mentor 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 Memstack Development Mentor 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 Memstack Development Mentor use?
Memstack Development Mentor is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Memstack Development Mentor use?
About 1.6k tokens (SKILL.md is roughly 6.2k 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 Memstack Development Mentor?
Skills that share tags, products or a category with Memstack Development Mentor: Copilot Code Coach (timothywarner/chatgptclass, 143 stars), Code Walkthrough (testdouble/han, 279 stars), Code Mentor (LeoYeAI/openclaw-master-skills, 2.2k stars) and Review (SethGammon/Citadel, 922 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Memstack Development Mentor?
cwinvestments (a GitHub user) maintains it in cwinvestments/memstack, which has 423 GitHub stars. The repository holds 87 skills in this directory. The repository was last updated on September 26, 2026.
Source: cwinvestments/memstack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.