AI Engineering Placement Quiz
rohitg00/ai-engineering-from-scratch
Runs a 10-question quiz across five areas to place a learner in the AI Engineering from Scratch curriculum, so they skip what they already know.
Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general).
Install Classroom
$ npx skills add Atmosphere/atmosphere --skill classroom -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Atmosphere/atmosphere classroom --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/Atmosphere/atmosphere.git skills-src && mkdir -p .claude/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .claude/skills/classroom && 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 "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .claude/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroomType 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 Atmosphere/atmosphere --skill classroom -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Atmosphere/atmosphere classroom --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Atmosphere/atmosphere.git skills-src && mkdir -p .agents/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .agents/skills/classroom && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .agents/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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 Atmosphere/atmosphere --skill classroom -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Atmosphere/atmosphere classroom --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Atmosphere/atmosphere.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .cursor/skills/classroom && 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 "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .cursor/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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/Atmosphere/atmosphere.git --path modules/skills/src/main/resources/META-INF/skills/classroom--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 Atmosphere/atmosphere --skill classroom -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Atmosphere/atmosphere classroom --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Atmosphere/atmosphere.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .gemini/skills/classroom && 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 "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .gemini/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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 Atmosphere/atmosphere classroomInstalls 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 Atmosphere/atmosphere --skill classroom -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Atmosphere/atmosphere.git skills-src && mkdir -p .github/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .github/skills/classroom && 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 "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .github/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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 Atmosphere/atmosphere --skill classroom -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Atmosphere/atmosphere classroom --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Atmosphere/atmosphere.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/modules/skills/src/main/resources/META-INF/skills/classroom .opencode/skills/classroom && 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 "classroom" agent skill from https://github.com/Atmosphere/atmosphere/tree/main/modules/skills/src/main/resources/META-INF/skills/classroom into .opencode/skills/classroom/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "classroom", 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
classroom- GitHub stars
- 3.8k
- Token cost
- ~345 tokens
- SKILL.md length
- 142 words
- Files
- 1
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general).
- Shared-broadcast educational settings
- SKILL.md covers Skills and Guardrails
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Classroom is an agent skill from Atmosphere/atmosphere. Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general). Use for shared-broadcast educational settings.
Its SKILL.md is about 350 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 Education. The repository describes itself as: Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and… The licence is Apache-2.0.
When your agent uses it
- Shared-broadcast educational settings
Example prompts
- “/classroom”
What it can do on your machine
Read from SKILL.md and the folder at commit 13671cf. 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
Classroom loads about 345 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 142 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 Atmosphere/atmosphere at commit 13671cf, republished under its Apache-2.0 licence (© Atmosphere). 142 words, ~345 tokens.
Download SKILL.mdSave it as
.claude/skills/classroom/SKILL.md (or your agent's skills folder).- name
- classroom
- description
- Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general). Use for shared-broadcast educational settings.
- metadata.category
- education
- metadata.tags
- classroom, multi-room, education, broadcast
AI Classroom Assistant
You are a collaborative AI classroom assistant. When a student asks a question, all students in the room see your response simultaneously. Keep responses clear, educational, and under 400 words.
Each room has its own subject focus. Adapt your teaching style to the subject:
- Math: Show step-by-step solutions. Use notation students can follow
- Science: Explain concepts with real-world examples. Encourage curiosity
- Code: Provide working examples. Explain why, not just how
- General: Answer anything. Relate topics back to the classroom context
Skills
- Explain concepts at the appropriate level for the audience
- Provide worked examples with clear step-by-step reasoning
- Encourage follow-up questions and exploration
- Adapt tone and depth to the room's subject area
Guardrails
- Keep responses educational and age-appropriate
- Show your reasoning -- don't just give answers
- Encourage students to think through problems themselves
- Acknowledge when a question is outside your expertise
© Atmosphere, Apache-2.0. 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 modules/skills/src/main/resources/META-INF/skills/classroom of Atmosphere/atmosphere.
Open the folder on GitHubat commit 13671cf
Compare with similar skills
Classroom 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 |
|---|---|---|---|---|---|---|
| Classroom this skillAtmosphere/atmosphere | 3.8k | — | ~345 | Automated safety check: Pass | Apache-2.0 | |
| AI Engineering Placement Quizrohitg00/ai-engineering-from-scratch | 66k | — | ~2k | Automated safety check: Pass | MIT | |
| AI Engineering Project Tutorrohitg00/ai-engineering-from-scratch | 66k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Hung-Yi Lee Teaching Stylevoidful/hung-yi-lee-skill | 1.3k | — | ~13k | Automated safety check: Pass | None | |
| AI Engineering Phase Quizrohitg00/ai-engineering-from-scratch | 66k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Claude Certification Tutorrohitg00/ai-engineering-from-scratch | 66k | — | ~3k | Automated safety check: Pass | MIT |
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Related
Questions about Classroom
What does Classroom do?
Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general). Classroom is an agent skill from Atmosphere/atmosphere. Multi-room AI classroom where all students see AI responses simultaneously, with per-room subject focus (math, science, code, general).
When should I use Classroom?
Classroom fits situations like: shared-broadcast educational settings.
How do I install Classroom in Claude Code?
Run `npx skills add Atmosphere/atmosphere --skill classroom -a claude-code`. Or copy the skill folder (modules/skills/src/main/resources/META-INF/skills/classroom in Atmosphere/atmosphere) into .claude/skills/classroom in your project. Claude Code loads it when a task matches its description.
How do I install Classroom in Codex?
Run `npx skills add Atmosphere/atmosphere --skill classroom -a codex`. Or copy the skill folder (modules/skills/src/main/resources/META-INF/skills/classroom in Atmosphere/atmosphere) into .agents/skills/classroom in your project. Codex loads it when a task matches its description.
Can I use Classroom 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 Atmosphere/atmosphere --skill classroom -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/classroom, .gemini/skills/classroom, .github/skills/classroom and .opencode/skills/classroom in your project.
What does Classroom need to run?
SKILL.md names no scripts, command-line tools or credentials: Classroom is instructions for the agent only.
Does Classroom 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 Classroom 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 Classroom use?
Classroom is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Classroom use?
About 345 tokens (SKILL.md is roughly 1.4k 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 Classroom?
Skills that share tags, products or a category with Classroom: AI Engineering Placement Quiz (rohitg00/ai-engineering-from-scratch, 66k stars), AI Engineering Project Tutor (rohitg00/ai-engineering-from-scratch, 66k stars), Hung-Yi Lee Teaching Style (voidful/hung-yi-lee-skill, 1.3k stars) and AI Engineering Phase Quiz (rohitg00/ai-engineering-from-scratch, 66k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Classroom?
Atmosphere (a GitHub organization) maintains it in Atmosphere/atmosphere, which has 3,818 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 6, 2026.
Source: Atmosphere/atmosphere on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.