340 Skill Library With Pack Manifest System

via “extensible skills system with .skill archive loading and composition”

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Unique: Uses .skill archives as self-contained bundles combining prompts, tools, and configuration, enabling true plugin-like extensibility. Skills are composed at runtime into a unified agent rather than running as separate processes, allowing seamless tool sharing and prompt composition.

More integrated than microservice-based skill systems because skills share memory and tool context directly. More maintainable than monolithic agent code because skills can be developed and versioned independently.