Shotgun helps developers feed their codebase context to large language models by intelligently selecting relevant files and constructing structured prompts. It features AI-powered Auto-Context that analyzes the repository tree and uses an LLM to pick files relevant to a given task. The tool integrates with OpenAI, Google Gemini, and OpenRouter for direct execution, includes built-in prompt templates for different development roles, and maintains a full history log of all prompts and responses.