OpenCarly

Context Augmentation & Reinforcement Layer for OpenCode

OpenCarly is an intelligent plugin for OpenCode that dynamically manages your AI's context window. Instead of dumping all your rules, API guidelines, and project instructions into a single massive prompt, OpenCarly loads rules only when they are relevant and seamlessly trims them from the chat history when they aren't.

This saves massive amounts of tokens, dramatically reduces your API costs, and keeps your AI laser-focused on the task at hand without being distracted by irrelevant guidelines. Heavily inspired by Claude Code - CARL.

🚀 Features

• Dynamic Rule Injection: Automatically injects specific instructions based on the files currently loaded in your context (e.g., injects React rules only when a .tsx file is open).
• Keyword Triggers: Trigger rule injection simply by typing a keyword in your prompt (e.g., typing "*api" injects your backend API guidelines).
• History Trimming: Aggressively removes injected rules from previous messages in the chat history, ensuring you only pay for the context once.
• Cost Estimation & Stats: Run *stats at any time to see exactly how many tokens (and estimated dollars!) OpenCarly has saved you.

📦 Installation

To install OpenCarly globally, use npm:

npm install -g opencarly

Then, initialize OpenCarly in your project directory:

cd your-project-dir
npx opencarly init

This will create an .opencarly configuration directory in your project containing a config.json file and a rules/ folder where you can place your dynamic guidelines.

⚙️ Configuration

Open your newly created .opencarly/config.json to start adding rules.

A rule consists of:

• name: A descriptive name for the rule.
• files: (Optional) An array of file globs. The rule will automatically inject if any file matching these globs is loaded in OpenCode.
• keywords: (Optional) An array of keywords. The rule will inject if any of these words (prefixed with a *, like *sql) are typed in your prompt.
• content: The path to the markdown file containing your instructions (relative to the .opencarly/rules/ directory).

Example Configuration

{
  "rules": [
    {
      "name": "React Guidelines",
      "files": ["**/*.tsx", "**/*.jsx", "components/**/*"],
      "content": "react.md"
    },
    {
      "name": "Database Schema",
      "keywords": ["db", "sql", "database"],
      "content": "schema.md"
    }
  ]
}

With this setup:

• Editing a Button.tsx file will automatically inject the rules from react.md.
• Asking the AI "Please write a *sql query" will automatically inject the rules from schema.md.

📊 Viewing Token Savings

You can see how many tokens OpenCarly has saved you by using the built-in stats command inside OpenCode:

user: *stats

OpenCarly will output a detailed report showing total tokens trimmed, prompts processed, and an estimated dollar amount saved based on your current AI model's input token pricing.

📝 License

MIT