DeepTutor CLI
HKUDS/DeepTutor
Teaches the agent to set up and run DeepTutor from the command line: chat and capabilities, knowledge bases, partners, memory, sessions, notebooks and the server or Web app.
Design deliberately flawed examples that develop error-detection skills and deepen understanding.
Install Erroneous Example Designer
$ npx skills add GarethManning/education-agent-skills --skill erroneous-example-designer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install GarethManning/education-agent-skills erroneous-example-designer --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/GarethManning/education-agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .claude/skills/erroneous-example-designer && 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 "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .claude/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designerType 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 GarethManning/education-agent-skills --skill erroneous-example-designer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install GarethManning/education-agent-skills erroneous-example-designer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .agents/skills/erroneous-example-designer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .agents/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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 GarethManning/education-agent-skills --skill erroneous-example-designer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install GarethManning/education-agent-skills erroneous-example-designer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .cursor/skills/erroneous-example-designer && 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 "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .cursor/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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/GarethManning/education-agent-skills.git --path skills/ai-learning-science/erroneous-example-designer--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 GarethManning/education-agent-skills --skill erroneous-example-designer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install GarethManning/education-agent-skills erroneous-example-designer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .gemini/skills/erroneous-example-designer && 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 "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .gemini/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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 GarethManning/education-agent-skills erroneous-example-designerInstalls 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 GarethManning/education-agent-skills --skill erroneous-example-designer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .github/skills/erroneous-example-designer && 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 "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .github/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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 GarethManning/education-agent-skills --skill erroneous-example-designer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install GarethManning/education-agent-skills erroneous-example-designer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/ai-learning-science/erroneous-example-designer .opencode/skills/erroneous-example-designer && 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 "erroneous-example-designer" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/ai-learning-science/erroneous-example-designer into .opencode/skills/erroneous-example-designer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erroneous-example-designer", 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
erroneous-example-designer- GitHub stars
- 830
- Token cost
- ~5k tokens
- SKILL.md length
- 1,808 words
- Files
- 1
- Skills in repo
- 142
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Design deliberately flawed examples that develop error-detection skills and deepen understanding.
- Works in 5 steps: "Read Sam's solution. Does each step… → "Sam says ½ + ⅓ = 2/5. Think about this:… → "Which step went wrong? Circle it and… → …
- Students make characteristic errors and need practice spotting mistakes
- SKILL.md covers What This Skill Does, Evidence Foundation, Input Schema and Prompt, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Erroneous Example Designer is an agent skill from GarethManning/education-agent-skills. Design deliberately flawed examples that develop error-detection skills and deepen understanding. Use when students make characteristic errors and need practice spotting mistakes.
Its SKILL.md is about 5k 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: 165 evidence-grounded AI skills for teachers, school leaders and EdTech builders—pedagogy, learning science, curriculum, assessment and regeneration. Claude, Codex and Hermes.
When your agent uses it
- Students make characteristic errors and need practice spotting mistakes
Example prompts
- “/erroneous-example-designer”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- "Read Sam's solution. Does each step make sense?"
- "Sam says ½ + ⅓ = 2/5. Think about this: ½ is the same as 0.5. Is 2/5 bigger or smaller than ½?" (2/5 = 0.4, which is SMALLER than ½…
- "Which step went wrong? Circle it and explain WHY it's wrong."
- "What should Sam have done instead? Solve the problem correctly."
- "Write Sam a note explaining the mistake in a way that would help them understand."
What it can do on your machine
Read from SKILL.md and the folder at commit 6bbbce4. 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
Erroneous Example Designer loads about 5k tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 1,808 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,808 words (~5,007 tokens).
“Designs worked examples that contain deliberate, realistic errors for students to identify, explain, and correct — a technique that produces learning effects comparable to or exceeding correct worked examples, with the additional benefit of developing error-detection skills. The critical insight…”
- name
- erroneous-example-designer
- disable-model-invocation
- false
- user-invocable
- true
- effort
- medium
- skill_id
- ai-learning-science/erroneous-example-designer
- skill_name
- Erroneous Example Designer
- domain
- ai-learning-science
- version
- 1.0
- evidence_strength
- moderate
- evidence_sources
- McLaren, Adams & Mayer (2012) — Delayed learning effects with erroneous examples, McLaren, Adams, Durkin, Goguadze, Mayer & Rittle-Johnson (2015) — To err is…
- output_schema.type
- object
Files
Just SKILL.md in skills/ai-learning-science/erroneous-example-designer of GarethManning/education-agent-skills.
Open the folder on GitHubat commit 6bbbce4
Compare with similar skills
Erroneous Example Designer 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 |
|---|---|---|---|---|---|---|
| Erroneous Example Designer this skillGarethManning/education-agent-skills | 830 | — | ~5k | Automated safety check: Pass | Custom licence | |
| DeepTutor CLIHKUDS/DeepTutor | 41k | — | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Zhang Xuefeng Perspectivealchaincyf/zhangxuefeng-skill | 10k | 1 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Deep Reading Analystginobefun/deep-reading-analyst-skill | 353 | 5 repos | ~3.6k | Automated safety check: Pass | MIT | |
| AI Engineering Placement Quizrohitg00/ai-engineering-from-scratch | 65k | — | ~2k | Automated safety check: Pass | MIT | |
| OpenMAIC Setup and ExtensionTHU-MAIC/OpenMAIC | 40k | — | ~1.7k | Automated safety check: Notes | MIT |
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Related
Categories
Questions about Erroneous Example Designer
What does Erroneous Example Designer do?
Design deliberately flawed examples that develop error-detection skills and deepen understanding. Erroneous Example Designer is an agent skill from GarethManning/education-agent-skills. Design deliberately flawed examples that develop error-detection skills and deepen understanding.
When should I use Erroneous Example Designer?
Erroneous Example Designer fits situations like: students make characteristic errors and need practice spotting mistakes.
How do I install Erroneous Example Designer in Claude Code?
Run `npx skills add GarethManning/education-agent-skills --skill erroneous-example-designer -a claude-code`. Or copy the skill folder (skills/ai-learning-science/erroneous-example-designer in GarethManning/education-agent-skills) into .claude/skills/erroneous-example-designer in your project. Claude Code loads it when a task matches its description.
How do I install Erroneous Example Designer in Codex?
Run `npx skills add GarethManning/education-agent-skills --skill erroneous-example-designer -a codex`. Or copy the skill folder (skills/ai-learning-science/erroneous-example-designer in GarethManning/education-agent-skills) into .agents/skills/erroneous-example-designer in your project. Codex loads it when a task matches its description.
Can I use Erroneous Example Designer 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 GarethManning/education-agent-skills --skill erroneous-example-designer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/erroneous-example-designer, .gemini/skills/erroneous-example-designer, .github/skills/erroneous-example-designer and .opencode/skills/erroneous-example-designer in your project.
What does Erroneous Example Designer need to run?
SKILL.md names no scripts, command-line tools or credentials: Erroneous Example Designer is instructions for the agent only.
Does Erroneous Example Designer 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 Erroneous Example Designer 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 Erroneous Example Designer use?
Erroneous Example Designer 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 Erroneous Example Designer use?
About 5k tokens (SKILL.md is roughly 20k 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 Erroneous Example Designer?
Skills that share tags, products or a category with Erroneous Example Designer: DeepTutor CLI (HKUDS/DeepTutor, 41k stars), Zhang Xuefeng Perspective (alchaincyf/zhangxuefeng-skill, 10k stars), Deep Reading Analyst (ginobefun/deep-reading-analyst-skill, 353 stars) and AI Engineering Placement Quiz (rohitg00/ai-engineering-from-scratch, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Erroneous Example Designer?
GarethManning (a GitHub user) maintains it in GarethManning/education-agent-skills, which has 830 GitHub stars. The repository holds 142 skills in this directory. The repository was last updated on August 28, 2026.
Source: GarethManning/education-agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.