eve/dist/src/execution/subagent-usage-span.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{createLogger}from"#internal/logging.js";import{trace}from"#compiled/@opentelemetry/api/index.js";const log=createLogger(`execution.subagent-usage-span`);function recordSubagentUsageSpans(e){for(let t of e){if(t.kind!==`subagent-result`||t.isError===!0)continue;let e=t.usage;if(e!==void 0)try{trace.getTracer(`eve`).startSpan(`invoke_agent ${t.subagentName}`,{attributes:{"gen_ai.operation.name":`invoke_agent`,"gen_ai.agent.name":t.subagentName,"gen_ai.usage.input_tokens":e.inputTokens,"gen_ai.usage.output_tokens":e.outputTokens,"gen_ai.usage.cache_read.input_tokens":e.cacheReadTokens,"gen_ai.usage.cache_creation.input_tokens":e.cacheWriteTokens}}).end()}catch(e){log.warn(`failed to emit subagent usage span`,{error:e})}}}export{recordSubagentUsageSpans};