eve
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Filesystem-first framework for durable backend AI agents that run anywhere.
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JavaScript
import{normalizeChannelAudience}from"#shared/channel-audience.js";import{ChannelRequestIdKey,OtelTraceEnabledKey,ScheduleIdKey,SessionTraceSeedKey}from"#context/keys.js";import{isNonEmptyString}from"#shared/guards.js";import{CHANNEL_CONTEXT_KEY_NAME}from"#context/key-names.js";import{resolveForwardedTraceSeed}from"#shared/forwarded-trace-policy.js";import{shouldCaptureInstrumentationContent}from"#shared/instrumentation-content.js";import{isSampledTrace}from"#tracing/sampled-trace.js";function readChannelKind(e){let t=e[CHANNEL_CONTEXT_KEY_NAME]?.kind;return isNonEmptyString(t)?t:void 0}function isWorkflowTraceContentVisible(e){let t=e[SessionTraceSeedKey.name];if(t!==void 0){let e=resolveForwardedTraceSeed(t);if(e.forwardedTracePolicy!==void 0){let t=e.decision;return t?.action===`record`&&t.recordInputs&&t.recordOutputs}}let n=e[CHANNEL_CONTEXT_KEY_NAME];return shouldCaptureInstrumentationContent(normalizeChannelAudience(n?.audience))}function isWorkflowOtelTraceEnabled(e){return e[OtelTraceEnabledKey.name]===!0}function readSessionTraceId(e){let t=e[SessionTraceSeedKey.name];if(t===void 0)return;let n=resolveForwardedTraceSeed(t);if(isSampledTrace(n))return isNonEmptyString(t.traceId)?t.traceId:void 0}function readParentLineage(e){let t=e[`eve.parentSession`],n=t?.callId,r=t?.rootSessionId,i=t?.sessionId,a=t?.turn?.id;return{callId:isNonEmptyString(n)?n:void 0,rootSessionId:isNonEmptyString(r)?r:void 0,sessionId:isNonEmptyString(i)?i:void 0,turnId:isNonEmptyString(a)?a:void 0}}function readParentSessionId(e){return readParentLineage(e).sessionId}function readRootSessionId(e){return readParentLineage(e).rootSessionId}function readChannelRequestId(e){let t=e[ChannelRequestIdKey.name];return isNonEmptyString(t)?t:void 0}function readScheduleId(e){let t=e[ScheduleIdKey.name];return isNonEmptyString(t)?t:void 0}const EVE_SESSION_TITLE_MAX_CHARS=125;function deriveSessionTitle(e){let t=collectMessageText(e);if(t===void 0||t.length===0)return;let n=t.replace(/\s+/gu,` `).trim();if(n.length===0)return;let r=Array.from(n);return r.length<=125?n:`${r.slice(0,124).join(``)}…`}function collectMessageText(e){if(typeof e==`string`)return e;if(!Array.isArray(e))return;let t=[];for(let n of e)n&&typeof n==`object`&&n.type===`text`&&typeof n.text==`string`&&t.push(n.text);return t.length>0?t.join(` `):void 0}function buildSessionAttributes(e){let t=isWorkflowTraceContentVisible(e.serializedContext),n=isWorkflowOtelTraceEnabled(e.serializedContext);return{"$eve.channel_request_id":readChannelRequestId(e.serializedContext),"$eve.schedule":readScheduleId(e.serializedContext),"$eve.is_otel_trace_enabled":n,"$eve.is_trace_content_visible":t,"$eve.trace_id":readSessionTraceId(e.serializedContext),"$eve.type":`session`,"$eve.trigger":readChannelKind(e.serializedContext),"$eve.title":deriveSessionTitle(e.inputMessage)}}function buildSubagentRootAttributes(e){return{"$eve.channel_request_id":readChannelRequestId(e.serializedContext),"$eve.is_otel_trace_enabled":isWorkflowOtelTraceEnabled(e.serializedContext),"$eve.is_trace_content_visible":isWorkflowTraceContentVisible(e.serializedContext),"$eve.trace_id":readSessionTraceId(e.serializedContext),"$eve.type":`subagent`,"$eve.parent":e.parentSessionId,"$eve.parent_call":e.parentCallId,"$eve.parent_turn":e.parentTurnId,"$eve.root":e.rootSessionId,"$eve.subagent":e.identity.nodeId,"$eve.trigger":readChannelKind(e.serializedContext)}}function buildTurnAttributes(e){return{"$eve.channel_request_id":e.requestId,"$eve.is_otel_trace_enabled":isWorkflowOtelTraceEnabled(e.serializedContext),"$eve.is_trace_content_visible":isWorkflowTraceContentVisible(e.serializedContext),"$eve.trace_id":readSessionTraceId(e.serializedContext),"$eve.type":`turn`,"$eve.parent":e.parentSessionId,"$eve.root":e.rootSessionId}}export{EVE_SESSION_TITLE_MAX_CHARS,buildSessionAttributes,buildSubagentRootAttributes,buildTurnAttributes,deriveSessionTitle,isWorkflowOtelTraceEnabled,isWorkflowTraceContentVisible,readChannelKind,readChannelRequestId,readParentLineage,readParentSessionId,readRootSessionId,readScheduleId,readSessionTraceId};