reference-docs

reference-docs is a skill for Claude Code from existential-birds/beagle. It costs 47 tokens per session (2,671 once invoked), scanned A, original, Apache-2.0.

A reference for writing API and symbol documentation: pages that describe functions, parameters, return values, and other technical details for lookup.

In plain words
What is it for?
Use it when creating API references, function references, parameter tables, or technical specifications.
Why use it?
It provides a consistent structure so experienced users can quickly find the exact detail they need without reading a tutorial.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Part of the beagle-docs plugin — 10 skills shipped together

Good fit Use it when creating API references, function references, parameter tables, or technical specifications.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/existential-birds/beagle/reference-docs
Install

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.

Any agent
npx skills add existential-birds/beagle --skill reference-docs
Clone the repo
git clone --depth 1 https://github.com/existential-birds/beagle

Made for: Claude Code.

Or install beagle-docs, the plugin that ships this one along with the rest of its 10 skills.

Wrote 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.

agentmods badge for reference-docs

README.md
[![agentmods](https://agentmods.dev/badge/skills/existential-birds/beagle/reference-docs/github.svg)](https://agentmods.dev/skills/existential-birds/beagle/reference-docs)
Your own site
<a href="https://agentmods.dev/skills/existential-birds/beagle/reference-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/reference-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.

agentmods 80×15 button for reference-docs

Your own site · 80×15
<a href="https://agentmods.dev/skills/existential-birds/beagle/reference-docs"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/reference-docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,671 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00047 $0.02671
Opus 5.5 $0.00019 $0.01068
Sonnet 5.5 $0.00009 $0.00534
Haiku 4.5 $0.00005 $0.00267

Measured 1mo ago against content hash eca34ee815e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

reference-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.

plugins/beagle-docs/skills/reference-docs/SKILL.md · 372 lines

How it starts

The opening of the file, as written. The whole thing — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reference Documentation Patterns

Reference documentation is information-oriented - helping experienced users find precise technical details quickly. This skill provides patterns for writing clear, scannable reference pages.

Dependency: Always use this skill in conjunction with docs-style for core writing principles. To confirm reference is the right type — rather than a tutorial, how-to, or explanation — see docs-style/references/diataxis-compass.md.

Purpose and Audience

  • Who: Experienced users seeking specific information
  • Goal: Quick lookup of technical details
  • Mode: Not for learning, for looking up
  • Expectation: Brevity, consistency, completeness

Document Structure Template

Use this template when creating reference documentation:

---
title: "[Symbol/API Name]"
description: "One-line description of what it does"
---

# [Name]

Brief description (1-2 sentences). State what it is and its primary purpose.

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `param1` | `string` | Yes | What this parameter controls |
| `param2` | `number` | No | Optional behavior modification. Default: `10` |

## Returns

| Type | Description |
|------|-------------|
| `ReturnType` | What the function returns and when |

## Example

```language
import { symbolName } from 'package';

// Complete, runnable example showing common use case
const result = symbolName({
  param1: 'realistic-value',
  param2: 42
});

console.log(result);
// Expected output: { ... }

## Writing Principles

### Describe, and Only Describe

Reference is austere, neutral, and authoritative — a map the reader can trust without independent verification. Its one job is to describe the machinery: commands, options, parameters, return values, limits, warnings. It does not instruct (that's How-To), teach (Tutorial), or argue (Explanation). When you feel the urge to explain *why* or walk the reader through a task, link out instead of inlining it; a digression interrupts and obscures the facts the reader came to consult.

Read the full file on GitHub · 372 lines

Changes

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.

  1. 1mo ago First seen · 372 lines · 47 tokens per session scan A eca34ee815e6

Subscribe to this mod's changes

reference-docs is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 47 tokens to every session and 2,671 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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