Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add kirilxd/claude-tutor --skill reviewgit clone --depth 1 https://github.com/kirilxd/claude-tutorWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/kirilxd/claude-tutor/review)<a href="https://agentmods.dev/skills/kirilxd/claude-tutor/review"><img src="https://agentmods.dev/badge/skills/kirilxd/claude-tutor/review/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kirilxd/claude-tutor/review"><img src="https://agentmods.dev/badge/skills/kirilxd/claude-tutor/review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00097 | $0.01199 |
| Opus 5 | $0.00048 | $0.00600 |
| Sonnet 5 | $0.00019 | $0.00240 |
| Haiku 4.5 | $0.00010 | $0.00120 |
Grade A, and why
review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Review — Learning Progress Dashboard
ALWAYS use the AskUserQuestion tool when asking the user questions, in any context. If you have too many questions for the tool, split them up into multiple calls.
Overview
Show the user their learning progress across all topics or for a specific topic. Display quiz scores, module completion, weak areas, score trends, and actionable next steps.
Data Schemas
The review skill reads data written by the learn and quiz skills. Here are the formats you'll encounter:
index.json (~/.claude/learning/index.json) — master registry:
{
"topics": {
"topic-slug": {
"displayName": "Topic Name",
"planFile": "plans/topic-slug-2026-03-01.json",
"progressFile": "progress/topic-slug.json",
"created": "2026-03-01",
"lastActivity": "2026-03-01",
"level": "beginner",
"modulesCompleted": 0,
"modulesTotal": 5,
"quizzesTaken": 1,
"overallScore": 0.8
}
}
}
Plan files (~/.claude/learning/plans/<slug>-<date>.json) — contain modules[] with id, title, objectives, keyConcepts, estimatedTime, resources[].
Progress files (~/.claude/learning/progress/<slug>.json) — contain quizzes[] (each with date, module, score, total, questions[]), weakAreas[], strongAreas[], overallScore (percentage 0-100, not fraction).
Progress files now also contain spacedRepetition — a map of concept labels to SM-2 scheduling data (easeFactor, intervalDays, nextReview, repetitions). Concepts with nextReview at or before today are due for review.
Process
Step 1: Load Data
Read ~/.claude/learning/index.json.
If file doesn't exist or is empty:
- Tell the user: "No learning data found yet. Use /learn to start your first topic!"
- Stop here.
If user specified a topic (e.g., /review kubernetes):
- Load that topic's plan and progress files
- Show detailed single-topic view
If no topic specified:
- Load all topics from index
- Show overview of all topics
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 118 lines · 97 tokens per session scan A 1a3fa94bf84b
review is a skill published in the GitHub repository kirilxd/claude-tutor (123 stars, last pushed 1mo ago), licensed MIT. It adds 97 tokens to every session and 1,199 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
tutor
Use when the user wants to learn, study, or understand a topic — triggered by requests to teach, tutor, explain concepts, quiz, drill, or build understanding of any subject.
reading-metaskill
A reading and learning guide based on building a regular reading habit, choosing books, and understanding difficult subjects through original works and explanation.
textbook-distillation
Turn a textbook or long-form source into a self-paced learning track: chapter map, lesson plan, then self-contained HTML lecture notes (styled as the human specifies) with worked examples, exercises, and checkpoint questions. Read this for "lecture notes" / "study notes" / "course" / "syllabus" requests from a…
learning-and-development
Builds capability — skills gaps, career frameworks, training that transfers to the job, and internal mobility. Use this to design a career ladder, close a capability gap, decide whether to build or hire a skill, structure onboarding into a role, or work out why training keeps failing to change anything.
learning-notes-automation
A workflow for turning videos, podcasts, and articles into structured learning notes. It extracts key ideas and creates flashcards that can be imported into Anki, a spaced-repetition study app.
diagnose
A short question-based assessment of a pilot's current skill level. It produces a profile and saves it in the connected browser or database.