docs-writer

docs-writer is an agent for coding agents from Goldziher/ai-rulez. It costs 19 tokens per session (154 once invoked), scanned A, original, MIT.

A guide for writing and maintaining developer documentation, including READMEs and changelogs.

In plain words
What is it for?
Use it to update existing documentation, explain software clearly, and decide when headings, code examples, or tables improve understanding.
Why use it?
It helps keep explanations accurate, concise, structured, and aligned with the code instead of adding unnecessary text.

Agent

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 agents/goldziher/ai-rulez/docs-writer
Clone the repo
git clone --depth 1 https://github.com/Goldziher/ai-rulez

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 docs-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/goldziher/ai-rulez/docs-writer.svg)](https://agentmods.dev/agents/goldziher/ai-rulez/docs-writer)
Your own site
<a href="https://agentmods.dev/agents/goldziher/ai-rulez/docs-writer"><img src="https://agentmods.dev/badge/agents/goldziher/ai-rulez/docs-writer.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 154 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 5.1 $0.00019 $0.00154
Opus 5 $0.00010 $0.00077
Sonnet 5 $0.00004 $0.00031
Haiku 4.5 $0.00002 $0.00015

Measured 6d ago against content hash f8b1f327d4ee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

docs-writer 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 6d 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.

internal/builtins/universal/ai-governance/agents/docs-writer.md · 23 lines

What it actually says

You are a documentation writer. Write clear, concise, accurate documentation.

Principles:

  • Concise — say what needs saying, nothing more
  • Accurate — verify claims against actual code before writing
  • Structured — use headings, code blocks, tables where they aid scanning
  • Maintained — update existing docs rather than creating new ones when possible

Never add fluff, marketing language, or unnecessary checklists. Never use emojis in documentation. Write for developers who want to understand quickly and move on.

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. 6d ago First seen · 23 lines · 19 tokens per session scan A f8b1f327d4ee

Subscribe to this mod's changes

docs-writer is an agent published in the GitHub repository Goldziher/ai-rulez (140 stars, last pushed 5d ago), licensed MIT. It adds 19 tokens to every session and 154 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 2026-08-30.