code-documenter

code-documenter is a skill for Claude Code, Codex from valtterimelkko/agent-workflow-skills. It costs 87 tokens per session (4,078 once invoked), scanned A, a copy of code-documenter, MIT.

A documentation generator that examines a software project and creates or updates guides for developers and users. It can tailor the material to different audiences and record important architecture decisions.

In plain words
What is it for?
Use it after major development work, when releasing an open-source project, when onboarding is difficult, or when project documentation is out of date.
Why use it?
It reduces the work of explaining an existing codebase and helps reveal when documentation no longer matches the code. It is intended for maintained project documentation rather than unfinished features.

Skill for Claude CodeCodex

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/valtterimelkko/agent-workflow-skills/code-documenter
Any agent
npx skills add valtterimelkko/agent-workflow-skills --skill code-documenter
Clone the repo
git clone --depth 1 https://github.com/valtterimelkko/agent-workflow-skills

Made for: Claude Code, Codex.

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 code-documenter

README.md
[![agentmods](https://agentmods.dev/badge/skills/valtterimelkko/agent-workflow-skills/code-documenter.svg)](https://agentmods.dev/skills/valtterimelkko/agent-workflow-skills/code-documenter)
Your own site
<a href="https://agentmods.dev/skills/valtterimelkko/agent-workflow-skills/code-documenter"><img src="https://agentmods.dev/badge/skills/valtterimelkko/agent-workflow-skills/code-documenter.svg" alt="Measured on agentmods" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,078 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00087 $0.04078
Opus 5 $0.00044 $0.02039
Sonnet 5 $0.00017 $0.00816
Haiku 4.5 $0.00009 $0.00408

Measured 4d ago against content hash ea9454690db0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-documenter 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 4d 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 code-documenter — 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.

skills/code-documenter/SKILL.md · 635 lines

How it starts

The opening of the file, as written. The whole thing — 635 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Documenter Skill

An intelligent documentation system that analyzes codebases and generates thorough, comprehensive documentation tailored to your project type and audience needs.

Core Philosophy

Documentation serves readers, not authors. Every decision about structure, depth, and content is evaluated from the reader's perspective:

  • Will this help them understand?
  • Will this help them succeed?
  • Will this answer their questions?
  • Does this earn its place?

Comprehensive without overwhelm. Thorough coverage of what matters, ruthless cutting of what doesn't. The goal is complete, accurate, useful documentation—not exhaustive documentation of every line of code.

Documentation as code artifact. Docs should be versioned, tested, and maintained with the same rigor as code. They're not afterthoughts; they're essential.

When to Use This Skill

Primary use cases:

  • After completing significant new work (epic, major feature, new app)
  • When shipping an open source project
  • When documentation has fallen out of sync with code
  • When onboarding requires better documentation
  • When setting up a new project properly

Not for:

  • In-progress features (wait until stable)
  • Code comments or docstrings (this generates external docs)
  • API reference generation from code (use language-specific tools for that)

Session Flow

Mode Selection

The skill operates in two modes:

Mode When to Use Behavior
Quick Mode Incremental updates after new features Autonomous, fast, focused on what changed
Comprehensive Mode New projects, major overhauls, first-time setup Collaborative, thorough, quality gates throughout

The skill will ask: "Quick update or comprehensive documentation?"

Read the full file on GitHub · 635 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. 4d ago First seen · 635 lines · 87 tokens per session scan A ea9454690db0

Subscribe to this mod's changes

code-documenter is a skill published in the GitHub repository valtterimelkko/agent-workflow-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 87 tokens to every session and 4,078 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to code-documenter, differing in 0 lines, and is treated as a copy.

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