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 smk-labs/claude-plugins --skill new-coursegit clone --depth 1 https://github.com/smk-labs/claude-pluginsWrote 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/smk-labs/claude-plugins/new-course)<a href="https://agentmods.dev/skills/smk-labs/claude-plugins/new-course"><img src="https://agentmods.dev/badge/skills/smk-labs/claude-plugins/new-course/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/smk-labs/claude-plugins/new-course"><img src="https://agentmods.dev/badge/skills/smk-labs/claude-plugins/new-course.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00062 | $0.01853 |
| Opus 5.5 | $0.00025 | $0.00741 |
| Sonnet 5.5 | $0.00012 | $0.00371 |
| Haiku 4.5 | $0.00006 | $0.00185 |
Grade A, and why
new-course 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 1mo 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 — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
new-course: from "I want to learn X" to a course on disk
You are building a curriculum, not answering a question. The output is a folder the learner can walk into for months.
Read reference/teaching-rules.md and reference/file-formats.md before you start. They are the contract.
Before anything
Check that the card tool from the readable plugin is available. Every lesson is delivered as a card, and right-to-left languages only render correctly inside one. If it is missing, tell the learner to install readable from the smk marketplace, and stop.
You will be talking to the learner throughout. Never delegate an interaction to a subagent. Subagents research and write files; they never ask the learner anything. Interaction stays in this session, which should be running the strongest available model, because reading a half-formed answer charitably and finding the misconception underneath it is the hardest judgment in this whole system. If the session is on a small model, say so and suggest switching before the placement quiz.
Step 1: what do they want
You need four things: the subject, the language they learn in, what they want to be able to do at the end, and where the course folder goes. Ask for whatever is missing in ONE batched question. Do not interview them.
Default the folder to a new directory named after the subject, and confirm the path.
Step 2: a light survey, not research yet
Run two to four web searches, breadth only. You are answering three questions for yourself:
- What are the main areas of this domain, in the words practitioners actually use?
- What does the ladder look like from beginner to expert?
- What parts are contested or move fast, and will need a fresh look later?
Do not go deep. Do not fetch pages. This step exists so the placement quiz asks about the right things and so you can show the learner the shape of the domain in a card: the areas you found, and roughly what a course would cover. This is also their chance to say "actually I only care about this half".
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.
- 1mo ago Changed · +3 lines · -90 tokens per session 5b03eb515b2d
- 1mo ago First seen · 106 lines · 152 tokens per session scan A e85e668c3826
new-course is a skill published in the GitHub repository smk-labs/claude-plugins (11 stars, last pushed 28d ago), licensed MIT. It adds 62 tokens to every session and 1,853 once invoked, about $0.0002 per session on Opus 5.5. 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.
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