> For the complete documentation index, see [llms.txt](https://ghostscreen.gitbook.io/ghost-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ghostscreen.gitbook.io/ghost-docs/readme.md). # Welcome ## Ghost: Overview Welcome to **Ghost**, your free AI partner designed to help you excel in technical interview preparation. ### The Mission Ghost was created with a simple goal: **to level the playing field** in technical interview preparation. Traditional technical interviews can be challenging, and access to advanced preparation tools shouldn't be limited by cost. Ghost provides powerful AI assistance, completely free, empowering every candidate to prepare effectively. It emerged as a fork, driven by the belief that interview practices need to evolve, and preparation tools should be accessible to all. ### Why Choose Ghost? Ghost offers a unique combination of features focused on effective and private preparation: * ✨ **Completely Free:** No subscriptions, no hidden fees. You only cover the cost of your personal AI provider API key usage (OpenAI or Google Gemini). * 🔒 **Privacy First:** Your API keys, screenshots, and data stay on your local machine. Ghost communicates directly with the AI provider (OpenAI/Gemini) only when processing problems, ensuring your information remains private. * 🤖 **AI-Powered Assistance:** Leverage cutting-edge models (like GPT-4o or Gemini) to automatically extract coding problems from screenshots, generate optimized solutions with time/space complexity analysis, and even get AI-powered debugging help. * 🎨 **Flexible & Discreet Interface:** A minimal, adjustable window (move, resize, change opacity) designed for focused practice sessions. It's built to remain hidden from many common screen-sharing applications during *practice*. * 🔧 **Customizable & Extensible:** Choose between different AI models for various tasks and, thanks to its open-source nature (AGPL-3.0 License), you can explore, modify, and even integrate other LLMs. * 🚀 **Fair Alternative:** Get features comparable to premium, paid tools without the hefty price tag. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://ghostscreen.gitbook.io/ghost-docs/readme.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `build a script that syncs our docs to a CMS` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.