documentation

documentation is a skill for Claude Code from sun2443/designer-skills. It costs 59 tokens per session (334 once invoked), scanned A, a copy of documentation, Apache-2.0.

A technical documentation guide for writing and maintaining READMEs, API references, architecture explanations, runbooks, and onboarding guides. A runbook is a step-by-step guide for carrying out an operational task, such as responding to an outage.

In plain words
What is it for?
Use it to document software setup, APIs, system design, deployment or recovery procedures, and new-team-member workflows.
Why use it?
It helps turn scattered technical knowledge into instructions that users, developers, and operators can follow and keep current.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the engineering plugin — 10 skills shipped together

Good fit Use it to document software setup, APIs, system design, deployment or recovery procedures, and new-team-member workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sun2443/designer-skills/documentation
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 sun2443/designer-skills --skill documentation
Clone the repo
git clone --depth 1 https://github.com/sun2443/designer-skills

Made for: Claude Code.

Or install engineering, 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 documentation

README.md
[![agentmods](https://agentmods.dev/badge/skills/sun2443/designer-skills/documentation/github.svg)](https://agentmods.dev/skills/sun2443/designer-skills/documentation)
Your own site
<a href="https://agentmods.dev/skills/sun2443/designer-skills/documentation"><img src="https://agentmods.dev/badge/skills/sun2443/designer-skills/documentation/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 documentation

Your own site · 80×15
<a href="https://agentmods.dev/skills/sun2443/designer-skills/documentation"><img src="https://agentmods.dev/badge/skills/sun2443/designer-skills/documentation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 334 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 100% copy Near-identical to another mod 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 $0.00059 $0.00334
Opus 5.5 $0.00024 $0.00134
Sonnet 5.5 $0.00012 $0.00067
Haiku 4.5 $0.00006 $0.00033

Measured 13d ago against content hash 1d469418f786, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

documentation 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 13d 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.

Origin

This is a copy

100% identical to documentation — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

engineering/skills/documentation/SKILL.md · 50 lines

What it actually says

Technical Documentation

Write clear, maintainable technical documentation for different audiences and purposes.

Document Types

README

  • What this is and why it exists
  • Quick start (< 5 minutes to first success)
  • Configuration and usage
  • Contributing guide

API Documentation

  • Endpoint reference with request/response examples
  • Authentication and error codes
  • Rate limits and pagination
  • SDK examples

Runbook

  • When to use this runbook
  • Prerequisites and access needed
  • Step-by-step procedure
  • Rollback steps
  • Escalation path

Architecture Doc

  • Context and goals
  • High-level design with diagrams
  • Key decisions and trade-offs
  • Data flow and integration points

Onboarding Guide

  • Environment setup
  • Key systems and how they connect
  • Common tasks with walkthroughs
  • Who to ask for what

Principles

  1. Write for the reader — Who is reading this and what do they need?
  2. Start with the most useful information — Don't bury the lede
  3. Show, don't tell — Code examples, commands, screenshots
  4. Keep it current — Outdated docs are worse than no docs
  5. Link, don't duplicate — Reference other docs instead of copying
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. 13d ago First seen · 50 lines · 59 tokens per session scan A 1d469418f786

Subscribe to this mod's changes

documentation is a skill published in the GitHub repository sun2443/designer-skills (0 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 59 tokens to every session and 334 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to documentation, differing in 0 lines, and is treated as a copy.

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