Execution Modes With Persistent State And Mode Specific Workflows

via “workflow execution engine with loop, parallel, and nested execution support”

Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.

Unique: Combines DAG execution with run-from-block debugging (allowing execution to resume from any block without re-running prior blocks), human-in-the-loop pausing, and background job queue persistence — enabling both interactive debugging and production-grade long-running workflows

vs others: More debuggable than Langchain agents because of run-from-block stepping; more reliable than simple async/await patterns because execution state is persisted and can survive process restarts