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 existential-birds/beagle --skill tutorial-docsgit clone --depth 1 https://github.com/existential-birds/beagleWrote 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/existential-birds/beagle/tutorial-docs)<a href="https://agentmods.dev/skills/existential-birds/beagle/tutorial-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/tutorial-docs/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/existential-birds/beagle/tutorial-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/tutorial-docs.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 | $0.00060 | $0.02730 |
| Opus 5.5 | $0.00024 | $0.01092 |
| Sonnet 5.5 | $0.00012 | $0.00546 |
| Haiku 4.5 | $0.00006 | $0.00273 |
Grade A, and why
tutorial-docs 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 — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tutorial Documentation Skill
This skill provides patterns for writing effective tutorials following the Diataxis framework. Tutorials are learning-oriented content where the reader learns by doing under the guidance of a teacher.
Dependency: Use this skill with docs-style for core writing principles. To confirm a tutorial is the right type — rather than a how-to, reference, or explanation — see docs-style/references/diataxis-compass.md.
Purpose & Audience
Target readers:
- Complete beginners with no prior experience
- Users who want to learn, not accomplish a specific task
- People who need a successful first experience with the product
- Learners who benefit from guided, hands-on practice
Tutorials are NOT:
- How-To guides (which help accomplish specific tasks)
- Explanations (which provide understanding)
- Reference docs (which describe the system)
Core Principles (Diataxis Framework)
1. Learn by Doing, Not by Reading
Tutorials teach through action, not explanation. The reader should be doing something at every moment.
| Avoid | Prefer |
|---|---|
| "REST APIs use HTTP methods to..." | "Run this command to make your first API call:" |
| "Authentication is important because..." | "Add your API key to authenticate:" |
| "The dashboard contains several sections..." | "Click Create Project in the dashboard." |
2. Deliver Visible Results at Every Step
After each action, tell readers exactly what they should see. This confirms success and builds confidence.
Run the development server:
```bash
npm run dev
You should see:
> Local: http://localhost:3000
> Ready in 500ms
Open http://localhost:3000 in your browser. You should see a welcome page with "Hello, World!" displayed.
### 3. One Clear Path, Minimize Choices
Tutorials should not offer alternatives. Pick one way and guide the reader through it completely.
| Avoid | Prefer |
|-------|--------|
| "You can use npm, yarn, or pnpm..." | "Install the dependencies:" |
| "There are several ways to configure..." | "Create a config file:" |
| "Optionally, you might want to..." | [Omit optional steps entirely] |
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 First seen · 380 lines · 60 tokens per session scan A 6099ba004dfc
tutorial-docs is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 60 tokens to every session and 2,730 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 2026-09-16.
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