Plynth — AI Prompt Linter

Chrome/Edge extension that provides real-time linting and optimization for prompts typed into AI chat interfaces.

Supported sites: Works on any site by default via heuristic input detection. Dedicated adapters for ChatGPT, Claude, DeepSeek, Gemini, Copilot, and Perplexity. Disable per-site from the toolbar popup.

Quick Start

npm install
npm run build      # → .output/chrome-mv3/
npm run compile    # Type check
npm test           # Run tests

Load in Chrome

1. chrome://extensions → Developer mode → Load unpacked
2. Select .output/chrome-mv3/

Usage

• Type a prompt on any supported AI chat site — Plynth shows a floating score panel
• Ctrl+Shift+L (or Cmd+Shift+L) to auto-optimize the current prompt
• Click the Plynth icon in the toolbar to view stats and toggle per-site

Docs: AGENTS.md