1  import { roughTokenCountEstimation } from '../services/tokenEstimation.js'
 2  import type { AgentDefinitionsResult } from '../tools/AgentTool/loadAgentsDir.js'
 3  
 4  export const AGENT_DESCRIPTIONS_THRESHOLD = 15_000
 5  
 6  /**
 7   * Calculate cumulative token estimate for agent descriptions
 8   */
 9  export function getAgentDescriptionsTotalTokens(
10    agentDefinitions?: AgentDefinitionsResult,
11  ): number {
12    if (!agentDefinitions) return 0
13  
14    return agentDefinitions.activeAgents
15      .filter(a => a.source !== 'built-in')
16      .reduce((total, agent) => {
17        const description = `${agent.agentType}: ${agent.whenToUse}`
18        return total + roughTokenCountEstimation(description)
19      }, 0)
20  }