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Eos Usage

Community
neurofoo
eos-usage

Strunk & White grammar review using the 11 elementary rules from "Elements of Style" Chapter I. Use when checking mechanics, punctuation, and grammatical correctness.

Overview

Publisherneurofoo
Repositoryagent-skills
Skill nameeos-usage
Stars
123
Forks
19
Bundled files
Instructions only
LicenseMIT
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • Self-contained

    Everything the model needs lives in the instructions — no extra files to sync.

  • Open source

    Published by neurofoo on GitHub. Read the source before you install it.

Installation

Install the Eos Usage AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/neurofoo/agent-skills/tree/main/eos-usage
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/neurofoo/agent-skills.git /tmp/agent-skills
mkdir -p .claude/skills
cp -r /tmp/agent-skills/eos-usage .claude/skills/eos-usage
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Eos Usage in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Eos Usage on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Eos Usage is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Elements of Style: 11 Rules of Usage

Review writing against Strunk & White's 11 elementary rules of usage from Chapter I.

Instructions

Analyze the provided text for grammatical and mechanical errors. Flag specific violations with line numbers or quotes where possible.

Output Format

Text Under Review: [title or brief description]


Usage Review

#RuleStatusIssues Found
1Form possessive singular with 'sPass/Needs Work/N/A[issues]
2Use serial commaPass/Needs Work/N/A[issues]
3Enclose parenthetic expressions in commasPass/Needs Work/N/A[issues]
4Comma before conjunction + independent clausePass/Needs Work/N/A[issues]
5No comma splicePass/Needs Work/N/A[issues]
6No sentence fragmentsPass/Needs Work/N/A[issues]
7Use colon to introduce lists/appositivesPass/Needs Work/N/A[issues]
8Use dash for abrupt breaksPass/Needs Work/N/A[issues]
9Subject-verb agreementPass/Needs Work/N/A[issues]
10Proper pronoun casePass/Needs Work/N/A[issues]
11Dangling modifiersPass/Needs Work/N/A[issues]

Errors Found

Rule 5: Comma Splices

LocationErrorCorrection
[line/quote]"It is cold, we should go inside""It is cold; we should go inside" OR "It is cold, so we should go inside"

Rule 6: Sentence Fragments

LocationFragmentSuggested Fix
[line/quote][fragment][complete sentence]

Rule 11: Dangling Modifiers

LocationErrorCorrection
[line/quote]"Walking down the street, the trees were beautiful""Walking down the street, I noticed the beautiful trees"

Rule Reference

  1. Form the possessive singular by adding 's — Charles's friend, Burns's poems, the witch's malice. Exceptions: ancient proper names ending in -es or -is (Jesus', Moses'), and common idioms (for conscience' sake).

  2. In a series of three or more, use a comma after each term except the last — red, white, and blue. The serial comma prevents ambiguity.

  3. Enclose parenthetic expressions between commas — "The best way to see a country, unless you are pressed for time, is to travel on foot." If the interruption is slight, commas may be omitted.

  4. Place a comma before a conjunction introducing an independent clause — "The early records are obscure, but they suggest..." This rule applies when both clauses are independent (could stand alone).

  5. Do not join independent clauses with a comma — This error is the "comma splice." Wrong: "It is cold, we should go inside." Right: "It is cold; we should go inside" or "It is cold. We should go inside."

  6. Do not break sentences in two — Avoid sentence fragments. "I met them on a Cunard liner many years ago. Coming home from Liverpool to New York." The second part should not stand alone.

  7. Use a colon after an independent clause to introduce a list, appositive, amplification, or illustrative quotation — "The situation is perilous: our enemies are many, our supplies few."

  8. Use a dash to set off an abrupt break or to announce a long appositive or summary — "His first thought on getting out of bed—if he had any thought at all—was to get back in again." Use sparingly; frequent dashes give writing a breathless quality.

  9. The subject and verb must agree in number — "The bittersweet flavor of youth—its trials, its joys, its adventures, its challenges—are not soon forgotten" is wrong; use "is."

  10. Use the proper case of pronoun — "between you and I" is wrong; use "between you and me." In compound constructions, test each pronoun alone.

  11. A participial phrase at the beginning of a sentence must refer to the grammatical subject — "Walking down the street, the trees were beautiful" is wrong (trees weren't walking). Fix: "Walking down the street, I noticed the beautiful trees."


Summary

Grammar Accuracy: [Clean/Minor Issues/Significant Errors]

Most Common Error Type: [error category]

Corrections Needed:

  1. [Highest priority fix]
  2. [Second priority]
  3. [Third priority]

Guidelines

  • Not all comma usage is covered by these rules—focus on the specific patterns described
  • Rule 2 (serial comma) is a style choice in some guides; Strunk & White advocate for it
  • Some fragments are intentional for effect in creative writing
  • Technical writing may have different conventions for colons and lists

$ARGUMENTS

Frequently asked questions

What does the Eos Usage AI skill do?

Strunk & White grammar review using the 11 elementary rules from "Elements of Style" Chapter I. Use when checking mechanics, punctuation, and grammatical correctness.

Why use Eos Usage on TypingMind?

Because you install it once and use it with any model. Eos Usage is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Eos Usage in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/neurofoo/agent-skills/tree/main/eos-usage. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Eos Usage?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Eos Usage?

As many as you like. As long as a model supports skills, you can use Eos Usage with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Eos Usage AI skill free?

Yes. It is published on GitHub by neurofoo under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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