Hierra is an agentic web application designed to automate the entire software development lifecycle from a single high-level prompt. Its core innovation is a multi-level hierarchical memory system that intelligently manages context by storing information about completed tasks at varying levels of detail, from concise summaries to the full implementation code. This structure enables the agent to tackle complex, multi-step projects with remarkable long-term coherence and token efficiency, mimicking a human developer who only delves into specific code details when necessary. By first generating a comprehensive plan and then executing each step—creating files, writing code, and running commands with user approval—Hierra transforms a simple idea into a fully functional, locally running application, demonstrating a scalable and context-aware approach to autonomous code generation.
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