add-documentation

add-documentation is a skill for Claude Code, Codex, Cursor from emaraschio/cursor-commands. It costs 13 tokens per session (342 once invoked), scanned A, original, MIT.

A workflow for writing or improving documentation for a code change or feature, including its purpose, usage, design, errors, and examples.

In plain words
What is it for?
Use it to update a README, documentation folder, or code comments with feature explanations, API details, implementation notes, examples, and pitfalls.
Why use it?
It makes unfamiliar code easier to understand and records how it should be used, maintained, and extended.

Skill for Claude CodeCodexCursor

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.

agentmods
npx agentmods add skills/emaraschio/cursor-commands/add-documentation
Any agent
npx skills add emaraschio/cursor-commands --skill add-documentation
Clone the repo
git clone --depth 1 https://github.com/emaraschio/cursor-commands

Made for: Claude Code, Codex, Cursor.

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 add-documentation

README.md
[![agentmods](https://agentmods.dev/badge/skills/emaraschio/cursor-commands/add-documentation.svg)](https://agentmods.dev/skills/emaraschio/cursor-commands/add-documentation)
Your own site
<a href="https://agentmods.dev/skills/emaraschio/cursor-commands/add-documentation"><img src="https://agentmods.dev/badge/skills/emaraschio/cursor-commands/add-documentation.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 342 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00013 $0.00342
Opus 5 $0.00006 $0.00171
Sonnet 5 $0.00003 $0.00068
Haiku 4.5 $0.00001 $0.00034

Measured 5d ago against content hash 578f9d77566d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

add-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 5d 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.

.cursor/skill-contracts/add-documentation/SKILL.md · 48 lines

What it actually says

Overview

Add comprehensive documentation for the current code/feature and format it according to the project's documentation standards, including it in the appropriate location (README, docs folder, or inline comments).

Steps

  1. Overview
    • What this code/feature does
    • Why it exists and its purpose
    • Key concepts and terminology
  2. API Documentation
    • Function/method signatures
    • Parameters and return values
    • Example usage with code snippets
    • Error handling and edge cases
  3. Implementation Details
    • Architecture overview
    • Important design decisions
    • Dependencies and integrations
  4. Examples
    • Common use cases with full examples
    • Best practices and patterns
    • Common pitfalls to avoid

Add Documentation Checklist

  • Explained what this code/feature does
  • Documented why it exists and its purpose
  • Defined key concepts and terminology
  • Documented function/method signatures
  • Documented parameters and return values
  • Included example usage with code snippets
  • Documented error handling and edge cases
  • Provided architecture overview
  • Documented important design decisions
  • Included common use cases with full examples
  • Documented best practices and patterns
  • Documented common pitfalls to avoid

Guardrails

  • Document intent, contracts, and edge cases; do not document obvious one-liners.
  • Match the project's existing documentation style and location.
Files

What ships with it

3 files 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.

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. 5d ago First seen · 48 lines · 13 tokens per session scan A 578f9d77566d

Subscribe to this mod's changes

add-documentation is a skill published in the GitHub repository emaraschio/cursor-commands (9 stars, last pushed 28d ago), licensed MIT. It adds 13 tokens to every session and 342 once invoked, about $0.0001 per session on Opus 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 2026-08-31.

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