script

type Env struct {
	// Config is script-level configuration, accessible as a global in the script.
	Config map[string]any

	// Bindings maps names to host objects injected into the script's global scope.
	// Each value is typically a map[string]any of Go functions callable from the script.
	Bindings map[string]any
}

type Runtime interface {
	Exec(ctx context.Context, name, source string, env *Env) (*Signal, error)
}

type Signal struct {
	Type    string `json:"type"`
	Message string `json:"message,omitempty"`
}