Interactive Course Builder
XiaomiMiMo/MiMo-Code
Turns a PDF, paper, document, URL or topic into a chapter-by-chapter course with exercises, feedback and review, and saves progress so you can resume later.
General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching…
Install Study Companion En
$ npx skills add mingchen666/Reviva --skill study-companion-en -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mingchen666/Reviva study-companion-en --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/mingchen666/Reviva.git skills-src && mkdir -p .claude/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .claude/skills/study-companion-en && 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 "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .claude/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-enType 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 mingchen666/Reviva --skill study-companion-en -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mingchen666/Reviva study-companion-en --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .agents/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .agents/skills/study-companion-en && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .agents/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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 mingchen666/Reviva --skill study-companion-en -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mingchen666/Reviva study-companion-en --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .cursor/skills/study-companion-en && 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 "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .cursor/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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/mingchen666/Reviva.git --path electron/builtin-assets/skills/study-companion-en--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 mingchen666/Reviva --skill study-companion-en -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mingchen666/Reviva study-companion-en --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .gemini/skills/study-companion-en && 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 "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .gemini/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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 mingchen666/Reviva study-companion-enInstalls 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 mingchen666/Reviva --skill study-companion-en -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .github/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .github/skills/study-companion-en && 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 "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .github/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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 mingchen666/Reviva --skill study-companion-en -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mingchen666/Reviva study-companion-en --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/electron/builtin-assets/skills/study-companion-en .opencode/skills/study-companion-en && 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 "study-companion-en" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/study-companion-en into .opencode/skills/study-companion-en/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "study-companion-en", 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
study-companion-en- GitHub stars
- 244
- Token cost
- ~5.7k tokens
- SKILL.md length
- 2,593 words
- Files
- 59 (incl. scripts, references)
- Skills in repo
- 54
- Repo updated
- First seen
- Licence
- None found
At a glance
General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching…
- Works in 6 steps: Diagnose the learner's current state. → Choose a method and explain why in one… → Teach or guide one small chunk. → …
- Adult self-study
- SKILL.md covers Quick Start, Proactive Study Intake, Need Routing and Learner Profile In Session, plus 13 more sections
- Calls python
What it does
Study Companion En is an agent skill from mingchen666/Reviva. General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching, error analysis, active recall, flashcards, study plans, visualizations, animations, simulations, coding practice, language learning, and academic writing. Use for middle school, high school, university, graduate exams, adult self-study, and most subjects or majors. The skill text is English for compactness, but…
Its SKILL.md is about 5.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 62 other files, including scripts and reference files (for example `agents/openai.yaml`, `config.json` and `references/animation.md`).
It sits in Education, covering Study guides and flashcards, Curriculum and course design and Language learning. It works with Manim. The repository describes itself as: Local-first AI learning workspace — ask, note, review and create around your own materials. Wiki KB, Agents, Skills, creation tools.Private NotebookLM Alternative.AI….
When your agent uses it
- Adult self-study
- Knowledge graphs
- Spaced repetition
- Help me learn X / I dont understand this
Example prompts
- “help me learn X”
- “t understand this”
- “/study-companion-en”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Diagnose the learner's current state.
- Choose a method and explain why in one short sentence.
- Teach or guide one small chunk.
- Ask a quick check question.
- Adapt based on the answer.
- End with a short summary and a concrete next action.
What it can do on your machine
Read from SKILL.md and the folder at commit 0834b20. 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 1 file in scripts/, which the agent can run.
Shell commands in SKILL.md call:
python
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
Study Companion En loads about 5.7k tokens when it runs, and up to ~94k if it reads all its reference files. Until then it costs about 235 tokens; SKILL.md has 2,593 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); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 2,593 words (~5,695 tokens).
“Act as an adaptive learning tutor. The goal is not to merely give answers; the goal is to help the learner understand, remember, practice, and transfer knowledge. Select the teaching method, workflow, and output format based on the learner's level…”
- name
- study-companion-en
Files
SKILL.md and 58 other files (scripts, references) in electron/builtin-assets/skills/study-companion-en of mingchen666/Reviva.
- SKILL.md
- agents/openai.yaml
- config.json
- references/animation.md
- references/modes/feynman.md
- references/modes/knowledge-map.md
- references/modes/practice.md
- references/modes/socratic.md
- references/modes/spaced-repetition.md
- references/modes/teach-ai.md
- references/modes/visual.md
- references/question-banks/biology.md
- references/question-banks/chemistry.md
- references/question-banks/cs.md
- references/question-banks/english.md
- references/question-banks/humanities.md
- references/question-banks/math.md
- … and 42 more
Open the folder on GitHubat commit 0834b20
Compare with similar skills
Study Companion En 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 |
|---|---|---|---|---|---|---|
| Study Companion En this skillmingchen666/Reviva | 244 | — | ~5.7k | Automated safety check: Pass | None | |
| Interactive Course BuilderXiaomiMiMo/MiMo-Code | 14k | — | ~2.9k | Automated safety check: Pass | MIT | |
| Claude Certification Tutorrohitg00/ai-engineering-from-scratch | 66k | — | ~3k | Automated safety check: Pass | MIT | |
| StudyVault Quiz Tutorbevibing/tutor-skills | 1.3k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Codex Skill Self-AssessmentFlorianBruniaux/claude-code-ultimate-guide | 6.1k | — | ~2.3k | Automated safety check: Pass | CC-BY-SA-4.0 | |
| Learnkirilxd/claude-tutor | 135 | — | ~3.6k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Study Companion En
What does Study Companion En do?
General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching…. Study Companion En is an agent skill from mingchen666/Reviva. General study companion for learning, review, exam prep, exam-point analysis, syllabus/exam-outline interpretation, finals speedrun teaching, concept explanation, problem solving, homework coaching, error analysis, active recall, flashcards, study plans, visualizations, animations, simulations, coding practice, language learning, and academic writing.
When should I use Study Companion En?
Study Companion En fits situations like: adult self-study; knowledge graphs; spaced repetition; help me learn X / I dont understand this.
How do I install Study Companion En in Claude Code?
Run `npx skills add mingchen666/Reviva --skill study-companion-en -a claude-code`. Or copy the skill folder (electron/builtin-assets/skills/study-companion-en in mingchen666/Reviva) into .claude/skills/study-companion-en in your project. Claude Code loads it when a task matches its description.
How do I install Study Companion En in Codex?
Run `npx skills add mingchen666/Reviva --skill study-companion-en -a codex`. Or copy the skill folder (electron/builtin-assets/skills/study-companion-en in mingchen666/Reviva) into .agents/skills/study-companion-en in your project. Codex loads it when a task matches its description.
Can I use Study Companion En 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 mingchen666/Reviva --skill study-companion-en -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/study-companion-en, .gemini/skills/study-companion-en, .github/skills/study-companion-en and .opencode/skills/study-companion-en in your project.
What does Study Companion En need to run?
Going by SKILL.md and its folder, Study Companion En needs the command-line tools its instructions call (python).
Does Study Companion En 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 Study Companion En 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Study Companion En use?
No licence was found for Study Companion En or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Study Companion En use?
About 5.7k tokens (SKILL.md is roughly 23k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 88k tokens, read only when the agent opens those files.
What are the alternatives to Study Companion En?
Skills that share tags, products or a category with Study Companion En: Interactive Course Builder (XiaomiMiMo/MiMo-Code, 14k stars), Claude Certification Tutor (rohitg00/ai-engineering-from-scratch, 66k stars), StudyVault Quiz Tutor (bevibing/tutor-skills, 1.3k stars) and Codex Skill Self-Assessment (FlorianBruniaux/claude-code-ultimate-guide, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Study Companion En?
mingchen666 (a GitHub user) maintains it in mingchen666/Reviva, which has 244 GitHub stars. The repository holds 54 skills in this directory. The repository was last updated on October 10, 2026.
Source: mingchen666/Reviva on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.