OmoiOS: Skill for Claude Code

.claude/skills/doc-expander/SKILL.md

doc-expander is a skill for Claude Code from kivo360/OmoiOS. It costs 66 tokens per session (1,547 once invoked), scanned A, original, Apache-2.0.

A workflow for expanding technical documentation by researching GitHub repositories and software libraries with DeepWiki and Context7. It starts from existing documents or questions and turns the findings into clearer, fuller documentation.

In plain words
What is it for?
Use it to expand README files, research libraries and frameworks, create documentation from questions, identify gaps, and organize researched material.
Why use it?
It helps fill missing explanations and answer documentation questions without relying only on the information already in a project file.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is kivo360/OmoiOS's own configuration. It tells Claude Code how to work on OmoiOS itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything OmoiOS configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kivo360/OmoiOS. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kivo360/OmoiOS/main/.claude/skills/doc-expander/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/kivo360/OmoiOS

Made for: Claude Code.

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 doc-expander

README.md
[![agentmods](https://agentmods.dev/badge/skills/kivo360/omoios/doc-expander.svg)](https://agentmods.dev/skills/kivo360/omoios/doc-expander)
Your own site
<a href="https://agentmods.dev/skills/kivo360/omoios/doc-expander"><img src="https://agentmods.dev/badge/skills/kivo360/omoios/doc-expander.svg" alt="Measured on agentmods" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,547 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 $0.00066 $0.01547
Opus 5 $0.00033 $0.00773
Sonnet 5 $0.00013 $0.00309
Haiku 4.5 $0.00007 $0.00155

Measured 8d ago against content hash 6d9e3f3e00e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

doc-expander 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/expand_docs.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/doc-expander/SKILL.md · 252 lines

How it starts

The opening of the file, as written. The whole thing — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Doc Expander

Research and expand documentation using DeepWiki and Context7 MCP servers.

Workflow Overview

┌─────────────────┐     ┌──────────────────┐     ┌─────────────────┐
│  1. Analyze     │────>│  2. Generate     │────>│  3. Research    │
│  Existing Doc   │     │  Questions       │     │  (DeepWiki/C7)  │
└─────────────────┘     └──────────────────┘     └─────────────────┘
                                                         │
                                                         ▼
┌─────────────────┐     ┌──────────────────┐     ┌─────────────────┐
│  6. Output      │<────│  5. Structure    │<────│  4. Synthesize  │
│  Final Doc      │     │  Content         │     │  Findings       │
└─────────────────┘     └──────────────────┘     └─────────────────┘

Quick Start

Expand Existing Documentation

User: Expand this README with more details about the API
  1. Read the existing document
  2. Identify gaps and generate questions
  3. Research using DeepWiki/Context7
  4. Synthesize and append findings

Create New Documentation

User: Create comprehensive docs for the fastapi library
  1. Generate foundational questions
  2. Research architecture, patterns, examples
  3. Structure into logical sections
  4. Output complete documentation

Research Tools

DeepWiki (GitHub Repositories)

Best for: Repository architecture, implementation details, source code patterns

# Get documentation structure
mcp__deepwiki-mcp__read_wiki_structure(repoName="owner/repo")

# Get full documentation
mcp__deepwiki-mcp__read_wiki_contents(repoName="owner/repo")

# Ask specific questions
mcp__deepwiki-mcp__ask_question(
    repoName="owner/repo",
    question="How does the authentication system work?"
)

When to use DeepWiki:

  • Open source libraries on GitHub
  • Understanding implementation details
  • Finding code examples from source
  • Architecture decisions and patterns

Context7 (Library Documentation)

Best for: Official docs, API references, best practices

Read the full file on GitHub · 252 lines

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. 8d ago First seen · 252 lines · 66 tokens per session scan A 6d9e3f3e00e7

Subscribe to this mod's changes

doc-expander is a skill published in the GitHub repository kivo360/OmoiOS (77 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 1,547 once invoked, about $0.0003 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 2026-08-30.

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