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 howto-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/howto-docs)<a href="https://agentmods.dev/skills/existential-birds/beagle/howto-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/howto-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/howto-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/howto-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 | $0.00056 | $0.02652 |
| Opus 5.5 | $0.00022 | $0.01061 |
| Sonnet 5.5 | $0.00011 | $0.00530 |
| Haiku 4.5 | $0.00006 | $0.00265 |
Grade A, and why
howto-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 — 358 lines — stays where its author put it; the contents beside it link to each section on GitHub.
How-To Documentation Skill
This skill provides patterns for writing effective How-To guides in documentation. How-To guides are task-oriented content for users who have a specific goal in mind.
Dependency: Use this skill with docs-style for core writing principles. To confirm a how-to is the right type — rather than a tutorial, reference, or explanation — see docs-style/references/diataxis-compass.md.
Purpose & Audience
Target readers:
- Users with a specific goal they want to accomplish
- Assumes some familiarity with the product (not complete beginners)
- Looking for practical, actionable steps
- Want to get things done, not learn concepts
How-To guides are NOT:
- Tutorials (which teach through exploration)
- Explanations (which provide understanding)
- Reference docs (which describe the system)
How-To Guide Template
Use this structure for all how-to guides:
---
title: "How to [achieve specific goal]"
description: "Learn how to [goal] using [product/feature]"
---
# How to [Goal]
Brief intro (1-2 sentences): what you'll accomplish and why it's useful.
## Prerequisites
- [What user needs before starting]
- [Required access, tools, or setup]
- [Any prior knowledge assumed]
## Steps
### 1. [Action verb] the [thing]
[Clear instruction with expected outcome]
<Note>
[Optional tip or important context]
</Note>
### 2. [Next action]
[Continue with clear, single-action steps]
```bash
# Example command or code if needed
3. [Continue numbering]
[Each step should be one discrete action]
Verify it worked
[How to confirm success - what should user see/experience?]
Troubleshooting
Next steps
- [Related how-to guide 1]
- [Related how-to guide 2]
- [Deeper dive reference doc]
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 · 358 lines · 56 tokens per session scan A aae69b9428ff
howto-docs is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 56 tokens to every session and 2,652 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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