#Telemetry

A3S Code exposes runtime evidence through events, traces, verification reports, and result metadata.

#Result Metadata

const result = await session.send('Run release checks');

console.log(result.promptTokens);
console.log(result.completionTokens);
console.log(result.totalTokens);
console.log(result.toolCallsCount);
console.log(result.verificationStatus);
console.log(result.verificationSummaryText);

#Trace And Verification

const trace = session.traceEvents();
const reports = session.verificationReports();
const summary = session.verificationSummary();
const text = session.verificationSummaryText();

#Streaming Events

Streaming returns versioned AgentEvent envelopes. version, type, payload, and optional metadata are the stable lossless fields; text, tool names, tool output, errors, token totals, and verification summaries are convenience projections. Unknown future type values and their payloads remain available to hosts.

#Logging

For product telemetry, prefer structured trace events and verification reports over scraping console output.