Interface AgentStep

interface AgentStep {
    id: string;
    type: "error" | "thinking" | "tool_call" | "decision" | "response";
    status: "pending" | "executing" | "completed" | "failed" | "cancelled";
    startTime: Date;
    endTime?: Date;
    duration?: number;
    content?: string;
    reasoning?: string;
    decision?: { action: string; confidence: number; alternatives: string[] };
    toolCall?: { name: string; arguments: any; result?: any; error?: string };
    metadata?: {
        model: string;
        tokens?: { input: number; output: number; total: number };
        cost?: number;
        complexity?: number;
    };
}