AgentSPEX: An Agent Specification and Execution Language

Researchers introduced AgentSPEX, a domain-specific language and runtime for defining LLM-agent workflows with explicit control flow and state management.

The system supports modular steps, tool access, logging, checkpointing, and a visual editor for building and inspecting agents.

They reported benchmark results and a user study, positioning AgentSPEX as a more structured alternative to prompt-only or Python-coupled frameworks.

The approach could improve the reliability, maintainability, and transparency of LLM agents.