Agent Plugins Marketplace
← All plugins

plain-english

v0.6.1

Tighten prose or write unambiguous technical documentation with two complementary writing skills.

CodexClaude Code2 Skills

By b1rdmaniaLicense: MIT55 GitHub starsUpdated last month

Directory evidence

Runtimes
Codex and Claude Code
Parsed components
2 skill or MCP entries
Source updated
Sep 10, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install plain-english for Codex and Claude Code

Installs for the current user
codex plugin marketplace add IchenDEV/agent-plugin-mkt
codex plugin marketplace upgrade agent-plugin-marketplace
codex plugin add plain-english@agent-plugin-marketplace

Paste and run these commands in a terminal with Codex. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/b1rdmania/claude-plain-english-skill

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

plain-english/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── SKILL.md
└── skills/simple-english/SKILL.md

Included Skills2

plain-englishSKILL.md

Tighten prose by stripping AI tics and applying Orwell/Gowers plain-English rules. Use when the user asks to rewrite, tighten, simplify, or detox writing — phrases like "plain English", "make this clearer", "cut the AI voice", "fix the writing", "rewrite plainly", "tighten this", "detox this". Also run as a self-audit pass before delivering long-form prose (essays, blog posts, articles, reports) so the output isn't recognisably AI-generated. Three modes: audit (flag + suggest), rewrite (deliver cleaned prose), edit (fix a named file in place). Technical documentation routes to the simple-english skill instead.

simple-englishskills/simple-english/SKILL.md

Write or rewrite technical text with the rules of ASD-STE100 Simplified Technical English so it is clear, unambiguous, and free of AI slop. Use for documentation, READMEs, runbooks, procedures, error messages, release notes, incident reports, and API guides. Also use when the user says "STE", "Simplified Technical English", "ASD-STE100", "de-slop", "make this readable", "write for non-native readers", or asks for docs that translate well. Enforces the standard's 53 rules: 20/25-word sentence limits, one word one meaning, simple tenses, active voice, condition before command.

Plugin manifests2

.codex-plugin/plugin.json
{
  "name": "plain-english",
  "version": "0.6.1",
  "description": "Tighten prose or write unambiguous technical documentation with two complementary writing skills.",
  "author": {
    "name": "b1rdmania",
    "url": "https://github.com/b1rdmania"
  },
  "homepage": "https://github.com/b1rdmania/claude-plain-english-skill",
  "repository": "https://github.com/b1rdmania/claude-plain-english-skill",
  "license": "MIT",
  "keywords": [
    "plain-english",
    "writing",
    "editing",
    "ai-writing"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "Plain English",
    "shortDescription": "Clear prose and unambiguous technical docs.",
    "longDescription": "Use Plain English for voice-led prose and Simple English for technical documentation governed by ASD-STE100-derived rules.",
    "developerName": "b1rdmania",
    "category": "Productivity",
    "capabilities": [
      "Write"
    ],
    "brandColor": "#E53924",
    "composerIcon": "./assets/plain-english-logo.png",
    "logo": "./assets/plain-english-logo.png",
    "websiteURL": "https://github.com/b1rdmania/claude-plain-english-skill",
    "privacyPolicyURL": "https://github.com/b1rdmania/claude-plain-english-skill/blob/main/PRIVACY.md",
    "termsOfServiceURL": "https://github.com/b1rdmania/claude-plain-english-skill/blob/main/TERMS.md",
    "defaultPrompt": [
      "Rewrite this in plain English without changing its meaning.",
      "Audit this prose for bloat and common AI-writing tics.",
      "Rewrite these technical instructions in Simplified Technical English."
    ]
  }
}
.claude-plugin/plugin.json
{
  "name": "plain-english",
  "version": "0.6.1",
  "description": "Tighten prose or write unambiguous technical documentation with two complementary writing skills.",
  "author": {
    "name": "b1rdmania"
  },
  "homepage": "https://github.com/b1rdmania/claude-plain-english-skill",
  "repository": "https://github.com/b1rdmania/claude-plain-english-skill",
  "license": "MIT",
  "keywords": [
    "plain-english",
    "writing",
    "editing",
    "ai-writing"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[plain-english on Agent Plugins Marketplace](https://pluginsmp.com/plugins/plain-english)