HEXIS: Compiling Skills into Extended Finite State Machines

HEXIS is a system that compiles agent skills into extended finite state machines, separating skill knowledge from control flow. It uses local instructions within states to guide reasoning and generation, while explicit transition conditions manage execution progress. The incremental compiler maps skill clauses and tool interfaces to state operations, aligns development traces to identify missing operations, and updates are validated through static checks and replay of traces, resulting in improved success rates and reduced execution tokens across benchmarks.

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• agents
• benchmarks