LeanCTX

LeanCTX is a tool designed to manage and control the context available to AI systems, with a focus on optimizing what AI agents can perceive, process, and remember. It addresses the challenge of efficiently handling large volumes of data by providing mechanisms for context engineering, allowing users to govern and streamline the information flow to AI models.

The platform offers features such as perceiving, compressing, remembering, routing, and governing data for AI agents. LeanCTX includes subsystems for compression, filtering, deduplication, and caching, enabling the reduction of raw input data (for example, compressing 100,000 tokens down to approximately 5,000 tokens). These capabilities are intended to help AI agents avoid redundant processing and to optimize resource usage. LeanCTX is compatible with over 30 AI tools and editors, and supports integration via API and SDKs. It is applicable to a range of use cases including AI coding agents, custom bots, scrapers and crawlers, research agents, workflow automation, and enterprise agent governance.

The service provides documentation and a CLI reference, and offers community-driven extensions. Metrics are available to track community savings and energy usage. LeanCTX is positioned as a context engineering solution for developers and organizations seeking to normalize, govern, and audit the data their AI agents access and utilize.