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.
Presents adaptive codebase challenge questions with multiple-choice and trace exercises.
Install Challenge
$ npx skills add athola/claude-night-market --skill challenge -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install athola/claude-night-market challenge --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/athola/claude-night-market.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .claude/skills/challenge && 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 "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .claude/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challengeType 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 athola/claude-night-market --skill challenge -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install athola/claude-night-market challenge --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .agents/skills/challenge && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .agents/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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 athola/claude-night-market --skill challenge -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install athola/claude-night-market challenge --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .cursor/skills/challenge && 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 "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .cursor/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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/athola/claude-night-market.git --path plugins/gauntlet/skills/challenge--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 athola/claude-night-market --skill challenge -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install athola/claude-night-market challenge --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .gemini/skills/challenge && 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 "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .gemini/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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 athola/claude-night-market challengeInstalls 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 athola/claude-night-market --skill challenge -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .github/skills/challenge && 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 "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .github/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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 athola/claude-night-market --skill challenge -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install athola/claude-night-market challenge --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/gauntlet/skills/challenge .opencode/skills/challenge && 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 "challenge" agent skill from https://github.com/athola/claude-night-market/tree/master/plugins/gauntlet/skills/challenge into .opencode/skills/challenge/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "challenge", 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
challenge- GitHub stars
- 341
- Token cost
- ~592 tokens
- SKILL.md length
- 266 words
- Files
- 1
- Skills in repo
- 154
- Repo updated
- First seen
- Licence
- MIT
At a glance
Presents adaptive codebase challenge questions with multiple-choice and trace exercises.
- Works in 8 steps: Load state: read… → Check for pending challenge: if → Generate challenge: use adaptive… → …
- Testing contributor knowledge of the codebase
- SKILL.md covers When NOT To Use, In-Loop Provider Setup, Steps and Scoring, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Challenge is an agent skill from athola/claude-night-market. Presents adaptive codebase challenge questions with multiple-choice and trace exercises. Use when testing contributor knowledge of the codebase.
Its SKILL.md is about 590 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, covering Quizzes and assessments. The repository describes itself as: 23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context… The licence is MIT.
When your agent uses it
- Testing contributor knowledge of the codebase
- Tasks that involve Quizzes and assessments
Example prompts
- “Use the challenge skill to present adaptive codebase challenge questions with multiple-choice and trace exercises”
- “/challenge”
Requirements
- Python 3
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Load state: read .gauntlet/knowledge.json and developer
- Check for pending challenge: if
- Generate challenge: use adaptive weighting to select a
- Present challenge: show the question with context
- Evaluate answer: score the response (pass/partial/fail)
- Record result: update developer progress and streak
- On pass: write pass token if from pre-commit gate. Show
- On fail: show correct answer with explanation. Present a
What it can do on your machine
Read from SKILL.md and the folder at commit 9f3eb00. 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 (its code samples are 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
Challenge loads about 592 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 266 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 athola/claude-night-market at commit 9f3eb00, republished under its MIT licence (© athola). 266 words, ~592 tokens.
Download SKILL.mdSave it as
.claude/skills/challenge/SKILL.md (or your agent's skills folder).- name
- challenge
- description
- Presents adaptive codebase challenge questions with multiple-choice and trace exercises. Use when testing contributor knowledge of the codebase.
- model_hint
- standard
Run Gauntlet Challenge
Present challenges from the knowledge base and evaluate answers.
When NOT To Use
- The knowledge base does not exist yet (use
gauntlet:extract) - A staged path for a new contributor (use
gauntlet:onboard)
In-Loop Provider Setup
Before generating a challenge, register the in-loop variation provider so we do not call out to the Anthropic API just to spawn a sibling Claude (issue #464). Outside Claude Code this is a no-op and the default Anthropic provider remains active.
from gauntlet.providers.in_loop import (
register_in_loop_provider_if_inside_claude_code,
)
register_in_loop_provider_if_inside_claude_code()Steps
Load state: read
.gauntlet/knowledge.jsonand developer progressCheck for pending challenge: if
.gauntlet/state/pending_challenge.jsonexists, evaluate the developer's most recent message as an answer before generating a new oneGenerate challenge: use adaptive weighting to select a knowledge entry and challenge type
Present challenge: show the question with context
Evaluate answer: score the response (pass/partial/fail)
Record result: update developer progress and streak
On pass: write pass token if from pre-commit gate. Show next challenge if in session.
On fail: show correct answer with explanation. Present a new challenge.
Scoring
| Result | Score | Streak |
|---|---|---|
| Pass | 1.0 | +1 |
| Partial | 0.5 | reset |
| Fail | 0.0 | reset |
Exit Criteria
-
.gauntlet/knowledge.jsonexists and is readable before a challenge is generated; if missing, the skill surfaces the error and suggests runninggauntlet:extract - Each challenge attempt results in a score (1.0/0.5/0.0) written to the developer's progress store and a streak update applied
-
.gauntlet/state/pending_challenge.jsonis evaluated before generating a new challenge when it exists; the file is removed or updated after evaluation - On fail, the correct answer and explanation are shown before the next challenge is presented (not skipped silently)
© athola, 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 plugins/gauntlet/skills/challenge of athola/claude-night-market.
Open the folder on GitHubat commit 9f3eb00
Compare with similar skills
Challenge 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 |
|---|---|---|---|---|---|---|
| Challenge this skillathola/claude-night-market | 341 | — | ~592 | Automated safety check: Pass | MIT | |
| DeepTutor CLIHKUDS/DeepTutor | 41k | — | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| AI Engineering Placement Quizrohitg00/ai-engineering-from-scratch | 66k | — | ~2k | Automated safety check: Pass | MIT | |
| Codebase to Coursezarazhangrui/codebase-to-course | 5.7k | — | ~4.4k | Automated safety check: Pass | None | |
| AI Engineering Phase Quizrohitg00/ai-engineering-from-scratch | 66k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Scholar EvaluationK-Dense-AI/claude-scientific-writer | 2.4k | 2 repos | ~2.9k | Automated safety check: Notes | MIT |
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Codebase to Course
zarazhangrui/codebase-to-course
Turns a codebase into an interactive single-page HTML course for non-technical learners, with scroll modules, animated diagrams, quizzes and plain-English code translations.
AI Engineering Phase Quiz
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Quizzes you on a completed phase of the AI Engineering from Scratch course, taking a phase number or name and mapping it to that phase's directory.
Scholar Evaluation
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Provide qualitative-first, evidence-traceable developmental review of scholarly works and audit low-stakes research-assessment rubrics with optional local quality controls.
Evaluation
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Categories
Questions about Challenge
What does Challenge do?
Presents adaptive codebase challenge questions with multiple-choice and trace exercises. Challenge is an agent skill from athola/claude-night-market. Presents adaptive codebase challenge questions with multiple-choice and trace exercises.
When should I use Challenge?
Challenge fits situations like: testing contributor knowledge of the codebase; tasks that involve Quizzes and assessments.
How do I install Challenge in Claude Code?
Run `npx skills add athola/claude-night-market --skill challenge -a claude-code`. Or copy the skill folder (plugins/gauntlet/skills/challenge in athola/claude-night-market) into .claude/skills/challenge in your project. Claude Code loads it when a task matches its description.
How do I install Challenge in Codex?
Run `npx skills add athola/claude-night-market --skill challenge -a codex`. Or copy the skill folder (plugins/gauntlet/skills/challenge in athola/claude-night-market) into .agents/skills/challenge in your project. Codex loads it when a task matches its description.
Can I use Challenge 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 athola/claude-night-market --skill challenge -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/challenge, .gemini/skills/challenge, .github/skills/challenge and .opencode/skills/challenge in your project.
What does Challenge need to run?
SKILL.md names no scripts, command-line tools or credentials: Challenge is instructions for the agent only. Our summary lists: Python 3.
Does Challenge 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 Challenge 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 Challenge use?
Challenge 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 Challenge use?
About 592 tokens (SKILL.md is roughly 2.4k 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 Challenge?
Skills that share tags, products or a category with Challenge: DeepTutor CLI (HKUDS/DeepTutor, 41k stars), AI Engineering Placement Quiz (rohitg00/ai-engineering-from-scratch, 66k stars), Codebase to Course (zarazhangrui/codebase-to-course, 5.7k 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 Challenge?
athola (a GitHub user) maintains it in athola/claude-night-market, which has 341 GitHub stars. The repository holds 154 skills in this directory. The repository was last updated on October 6, 2026.
Source: athola/claude-night-market on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.