A writing review based on 21 style reminders from The Elements of Style, a well-known guide to clear English prose. It checks a draft and gives specific feedback on clarity, tone, and word choice.

Use it to review documentation, articles, messages, or other drafts and identify concrete edits.

It helps find unnecessary words, weak phrasing, overstatement, and other issues that make writing harder to read.

eos-style — Skill for Claude Code by neurofoo

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.

Any agent

npx skills add neurofoo/agent-skills --skill eos-style

Clone the repo

git clone --depth 1 https://github.com/neurofoo/agent-skills

Made for: Claude Code.

Or install writing-skills, the plugin that ships this one along with the rest of its 3 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/neurofoo/agent-skills/eos-style.svg)](https://agentmods.dev/skills/neurofoo/agent-skills/eos-style)

Your own site

<a href="https://agentmods.dev/skills/neurofoo/agent-skills/eos-style"><img src="https://agentmods.dev/badge/skills/neurofoo/agent-skills/eos-style.svg" alt="Measured on agentmods" height="20"></a>

Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,257 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.

Model	Per session	Once invoked
Fable 5.1	$0.00039	$0.01257
Opus 5	$0.00019	$0.00629
Sonnet 5	$0.00008	$0.00251
Haiku 4.5	$0.00004	$0.00126

Measured 8d ago against content hash 4a18356fc536, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

eos-style 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.

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.

eos-style/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Elements of Style: 21 Style Reminders

Review writing against Strunk & White's 21 style principles from Chapter V "An Approach to Style."

Instructions

Analyze the provided text against each of the 21 style reminders. Focus on actionable feedback with specific examples from the text. Not all principles apply to every piece—mark N/A when appropriate.

Output Format

Text Under Review: [title or brief description]

Style Review

#	Principle	Status	Notes
1	Place yourself in the background	Pass/Needs Work/N/A	[specific feedback]
2	Write naturally	Pass/Needs Work/N/A	[specific feedback]
3	Work from suitable design	Pass/Needs Work/N/A	[specific feedback]
4	Write with nouns and verbs	Pass/Needs Work/N/A	[specific feedback]
5	Revise and rewrite	Pass/Needs Work/N/A	[specific feedback]
6	Don't overwrite	Pass/Needs Work/N/A	[specific feedback]
7	Don't overstate	Pass/Needs Work/N/A	[specific feedback]
8	Avoid qualifiers	Pass/Needs Work/N/A	[specific feedback]
9	Don't affect breeziness	Pass/Needs Work/N/A	[specific feedback]
10	Use orthodox spelling	Pass/Needs Work/N/A	[specific feedback]
11	Don't explain too much	Pass/Needs Work/N/A	[specific feedback]
12	Don't construct awkward adverbs	Pass/Needs Work/N/A	[specific feedback]
13	Make sure speakers are clear	Pass/Needs Work/N/A	[specific feedback]
14	Avoid fancy words	Pass/Needs Work/N/A	[specific feedback]
15	Use dialect sparingly	Pass/Needs Work/N/A	[specific feedback]
16	Be clear	Pass/Needs Work/N/A	[specific feedback]
17	Don't inject opinion	Pass/Needs Work/N/A	[specific feedback]
18	Use figures of speech sparingly	Pass/Needs Work/N/A	[specific feedback]
19	Don't sacrifice clarity for shortcuts	Pass/Needs Work/N/A	[specific feedback]
20	Avoid foreign languages	Pass/Needs Work/N/A	[specific feedback]
21	Prefer standard to offbeat	Pass/Needs Work/N/A	[specific feedback]

Read the full file on GitHub · 123 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.

8d ago First seen · 123 lines · 39 tokens per session scan A 4a18356fc536

Subscribe to this mod's changes

eos-style is a skill published in the GitHub repository neurofoo/agent-skills (111 stars, last pushed 7mo ago), licensed MIT. It adds 39 tokens to every session and 1,257 once invoked, about $0.0002 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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