//! Workflow engine — YAML-driven multi-step agent orchestration.
//!
//! Allows defining specialist prompts and multi-step flows in YAML files,
//! then executing them by calling ACP agents (via HTTP API or spawned processes).
//!
//! # Architecture
//!
//! ```text
//! workflow.yaml ──► WorkflowDefinition ──► WorkflowExecutor
//! │
//! specialists/*.yaml ─────► SpecialistDef
//! │
//! AcpAgentCaller (HTTP)
//! │
//! Claude / OpenCode / GLM
//! ```
pub use AcpAgentCaller;
pub use WorkflowExecutor;
pub use ;
pub use ;