docs-writer

A documentation-writing guide for files in the repository's docs directory or Markdown files. It sets rules for clear, accurate, consistent documentation written for an international audience.

In plain words
What is it for?
Use it when writing, editing, or reviewing documentation so the content follows the repository's required style and reflects the codebase accurately.
Why use it?
It helps avoid unclear wording, unnecessary jargon, inconsistent tone, and documentation that does not match the project's contribution standards.

Skill for Claude CodeCodexGemini CLI

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/google-gemini/gemini-cli/docs-writer
Any agent
npx skills add google-gemini/gemini-cli --skill docs-writer
Clone the repo
git clone --depth 1 https://github.com/google-gemini/gemini-cli

Made for: Claude Code, Codex, Gemini CLI.

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,997 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00035 $0.01997
Opus 5 $0.00017 $0.00999
Sonnet 5 $0.00007 $0.00399
Haiku 4.5 $0.00003 $0.00200

Measured 2d ago against content hash a7e5c1e5ed15, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

docs-writer scanned grade C with 1 finding 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 2d 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

block. Use `<!-- prettier-ignore -->` for standard Markdown files (`.md`) and
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.gemini/skills/docs-writer/SKILL.md · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

docs-writer skill instructions

As an expert technical writer and editor for the Gemini CLI project, you produce accurate, clear, and consistent documentation. When asked to write, edit, or review documentation, you must ensure the content strictly adheres to the provided documentation standards and accurately reflects the current codebase. Adhere to the contribution process in CONTRIBUTING.md and the following project standards.

Phase 1: Documentation standards

Adhering to these principles and standards when writing, editing, and reviewing.

Voice and tone

Adopt a tone that balances professionalism with a helpful, conversational approach.

  • Perspective and tense: Address the reader as "you." Use active voice and present tense (e.g., "The API returns...").
  • Tone: Professional, friendly, and direct.
  • Clarity: Use simple vocabulary. Avoid jargon, slang, and marketing hype.
  • Global Audience: Write in standard US English. Avoid idioms and cultural references.
  • Requirements: Be clear about requirements ("must") vs. recommendations ("we recommend"). Avoid "should."
  • Word Choice: Avoid "please" and anthropomorphism (e.g., "the server thinks"). Use contractions (don't, it's).

Language and grammar

Write precisely to ensure your instructions are unambiguous.

  • Abbreviations: Avoid Latin abbreviations; use "for example" (not "e.g.") and "that is" (not "i.e.").
  • Punctuation: Use the serial comma. Place periods and commas inside quotation marks.
  • Dates: Use unambiguous formats (e.g., "January 22, 2026").
  • Conciseness: Use "lets you" instead of "allows you to." Use precise, specific verbs.
  • Examples: Use meaningful names in examples; avoid placeholders like "foo" or "bar."
  • Quota and limit terminology: For any content involving resource capacity or using the word "quota" or "limit", strictly adhere to the guidelines in the quota-limit-style-guide.md resource file. Generally, Use "quota" for the administrative bucket and "limit" for the numerical ceiling.

Read the full file on GitHub · 195 lines

Files

What ships with it

2 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. 2d ago First seen · 195 lines · 35 tokens per session scan C a7e5c1e5ed15

Subscribe to this mod's changes

docs-writer is a skill published in the GitHub repository google-gemini/gemini-cli (106,761 stars, last pushed today), licensed Apache-2.0. It adds 35 tokens to every session and 1,997 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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