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eve

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

github.com/vercel/eve

vercel/eve

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import{readClientContext}from"#internal/client-context.js";import{createErrorId,createLogger,formatError,logError}from"#internal/logging.js";import{contextStorage}from"#context/container.js";import{AuthKey,HistoryStateKey,ParentSessionKey,ScheduleIdKey,SessionCallbackKey,TurnTaskDeliveryKey}from"#context/keys.js";import{resolveInstalledPackageInfo}from"#internal/application/package.js";import{toErrorMessage}from"#shared/errors.js";import{createActionResultEvent,createApprovalCandidateEvent,createApprovalSettledEvent,createAuthorizationCompletedEvent,createAuthorizationRequiredEvent,createCompactionCompletedEvent,createCompactionRequestedEvent,createContextClearedEvent,createInputRequestedEvent,createInputResolvedEvent,createMessageCompletedEvent,createResultCompletedEvent,createSessionWaitingEvent,createStepStartedEvent}from"#protocol/message.js";import{summarizeKnownError}from"#harness/semantic-errors/index.js";import{resolveProviderHeaders}from"#internal/gateway.js";import{formatLanguageModelGatewayId}from"#internal/runtime-model.js";import{createFrameworkUserMessage,createUserMessage,frameworkMessageKindForStepInput,normalizeModelMessages,normalizeUserContent,resolveAssistantStepText,validateHarnessModelMessages}from"#harness/messages.js";import{buildDynamicTools,buildResponseAuthorizationTools}from"#context/build-dynamic-tools.js";import{BoundaryHookError}from"#shared/boundary-hook-error.js";import{drainMemoryCommit,prepareMemoryCompaction,prepareMemoryPreamble}from"#context/memory-lifecycle.js";import{canonicalizeMemoryRecords,clearMemorySessionState,shouldCanonicalizeMemory}from"#shared/memory-state.js";import{advanceStep,emitFailedStep,emitRecoverableFailedTurn,emitStepStarted,emitStreamContent,emitTurnEpilogue,emitTurnPreamble,getHarnessEmissionState,setHarnessEmissionState}from"#harness/emission.js";import{ToolLoopAgent,isStepCount}from"ai";import{projectParkedAgentHandles,resolveAgentsAnnouncement}from"#subagents/handles/prompt.js";import{renderPendingApprovalsInstruction,renderPendingApprovalsSnippet}from"#harness/hitl/approval-prompt.js";import{getPendingInputBatches,queueDeferredStepInput}from"#harness/pending-input-batches.js";import{getAgentHandleStore}from"#subagents/handles/store.js";import{buildDynamicSubagentTools}from"#context/dynamic-subagent-lifecycle.js";import{hydrateSandboxAttachments,stageAttachmentsToSandbox}from"#harness/attachment-staging.js";import{createCoordinationRequestFromToolCall,resolvePendingCoordination,setPendingCoordinationBatch}from"#harness/coordination.js";import{activeTurnId}from"#harness/active-turn-id.js";import{clearPendingWorkflowInterrupt,getPendingWorkflowInterrupt,setPendingWorkflowInterrupt}from"#harness/workflow-interrupt-state.js";import{getWorkflowTaskInterrupts,isWorkflowTaskInterrupt}from"#harness/workflow-task-state.js";import{createHistoryViewPreparer}from"#shared/history-view.js";import{isTurnCancellation,throwIfTurnAborted}from"#harness/turn-cancellation.js";import{getActiveDynamicModelSelection,isDynamicModelSelectionError}from"#context/dynamic-model-lifecycle.js";import{ASK_QUESTION_TOOL_NAME}from"#harness/request-input-tool.js";import{getSupersededAuthorizationChallenges,setPendingAuthorization}from"#harness/authorization.js";import{appendPendingInputBatch,consumeDeferredStepInput,getApprovedTools,getPendingInputRequestIds,hasDeferredStepInput,hasPendingApprovalBatch,hasStepInput,resolvePendingInput}from"#harness/input-requests.js";import{accumulateTurnUsage,getTurnUsageState,setTurnUsageState}from"#harness/turn-tag-state.js";import{BackgroundToolExecutorKey,createBackgroundToolCallBatch}from"#harness/background-tools.js";import{createToolResultMessagePartFromToolError}from"#harness/action-result-helpers.js";import{buildDynamicInstructionMessages,drainDynamicInstructionUserMessages,prepareDynamicInstructionPreamble}from"#context/dynamic-instruction-lifecycle.js";import{PendingSkillAnnouncementKey}from"#context/dynamic-skill-lifecycle.js";import{resolveInitiatingTaskContext}from"#tasks/delivery-context.js";import{getWorkflowContinuationSecurity,readWorkflowContinuationSecurity}from"#harness/workflow-continuation-security.js";import{buildWorkflowHostTools,resolveWorkflowSandboxBridgeRequestLimit}from"#harness/workflow-sandbox.js";import{getApprovalAuditState,markApprovalCandidateHistoryEventEmitted,markApprovalCandidatePendingEventEmitted,markApprovalSettlementEventEmitted}from"#harness/approval-candidates.js";import{clearTurnClientContextState,getTurnClientContextState,setTurnClientContextState}from"#harness/turn-client-context.js";import{EMPTY_DELIVERY_SENTINEL,hasEmptyDeliverySentinel}from"#shared/empty-delivery.js";import{getInvalidToolCallInputError,isInvalidToolCall}from"#harness/tool-call-input-errors.js";import{ContentFilteredModelResponseError,EmptyModelResponseError,classifyModelCallError,extractModelCallErrorDetails,extractUnsupportedProviderToolTypes,extractUpstreamRejectionMessage,isNoOutputGeneratedError}from"#harness/model-call-error.js";import{resolveInlineAuthorizationInterrupt}from"#harness/inline-tool-authorization.js";import{createCurrentMessages}from"#harness/current-messages.js";import{extractQuestionInputRequests,extractToolApprovalInputRequests}from"#harness/input-extraction.js";import{applyLastToolCacheBreakpoint,applySystemCacheBreakpoint,detectPromptCachePath,getAnthropicCacheMarker}from"#harness/prompt-cache.js";import{mergeProviderSafetyIdentifier}from"#harness/provider-safety.js";import{requireSessionModelReference}from"#harness/types.js";import{emitWorkflowActionResults,emitWorkflowActionsRequested}from"#harness/workflow-lifecycle.js";import{compactMessages,getInputTokenCount,resolveCompactionModel,shouldCompact}from"#harness/compaction.js";import{applySessionLimitContinuation,enforceSessionUsageLimit}from"#harness/session-limit-enforcement.js";import{setEveAttributes}from"#runtime/attributes/emit.js";import{coordinateApprovalDelivery,shouldPrepareApprovalReplayTools}from"#harness/approval-delivery-coordinator.js";import{convertStaleResponsesToUserMessage,dropStaleSessionLimitContinuationResponses}from"#harness/stale-input-responses.js";import{normalizeProviderToolHistory}from"#harness/provider-tool-history.js";import{resolveDeliveryPolicy}from"#tasks/delivery-policy.js";import{extractWorkflowStreamWriteErrorDetails}from"#harness/workflow-stream-error.js";import{getAdvertisedTools}from"#harness/advertised-tools.js";import{resolveFrameworkToolFromUpstreamType}from"#harness/provider-tools.js";import{buildStepHooks,emitStepActions,readGatewayGenerationId}from"#harness/step-hooks.js";import{buildToolApproval,buildToolSetFromDefinitions,buildToolSetWithProviderTools}from"#harness/tools.js";import{continueWorkflowSandboxInterrupt,getWorkflowSandboxInterrupt,unwrapWorkflowSandboxResult}from"#shared/workflow-sandbox.js";import{FINAL_OUTPUT_TOOL_NAME,buildFinalOutputTool}from"#harness/final-output.js";const environment=process.env.NODE_ENV??`unknown`,eveVersion=resolveInstalledPackageInfo().version,log=createLogger(`harness.tool-loop`);function logToolExecutionError(e){e.toolOutput.type===`tool-error`&&logError(log,`tool execution failed`,e.toolOutput.error,{toolName:e.toolCall.toolName,toolCallId:e.toolCall.toolCallId})}function mergeSystemInstructions(e){if(e.length===0)return;if(e.length===1)return{...e[0]};let t;for(let n of e)n.providerOptions!==void 0&&(t={...t,...n.providerOptions});let n={role:`system`,content:e.map(e=>e.content).join(` `)};return t!==void 0&&(n.providerOptions=t),n}function buildGatewayAttributionHeaders(e,t){let n=resolveProviderHeaders(e);if(n===void 0)return;let r=t?.agentName??t?.agentId,i=process.env.VERCEL_PROJECT_PRODUCTION_URL||process.env.VERCEL_URL,a=i?`https://${i}`:void 0,o={...n};return r&&(o[`x-title`]=r),a&&(o[`http-referer`]=a),o}async function resolveActiveRuntimeModel(e){if(e.ctx===void 0){let t=e.session.agent.modelReference;if(t===void 0)throw Error(`Dynamic model selection is unavailable outside an eve runtime context.`);return{model:await e.config.resolveModel(t),session:e.session}}let t=getActiveDynamicModelSelection(e.ctx);if(t===null){let t=e.session.agent.modelReference;if(e.session.agent.dynamicModel===!0||t===void 0)throw Error(`Dynamic model selection is required before model-dependent work begins. Add a matching resolver handler that returns a concrete model.`);return{model:await e.config.resolveModel(t),session:e.session}}return{model:t.model===void 0?await e.config.resolveModel(t.reference):t.model,session:updateSessionModelReference(e.session,t.reference)}}function updateSessionModelReference(e,t){return{...e,agent:{...e.agent,modelReference:t},compaction:updateCompactionThresholdForModelReference({compaction:e.compaction,modelReference:t})}}function updateCompactionThresholdForModelReference(e){return e.modelReference.contextWindowTokens===void 0?e.compaction:{...e.compaction,threshold:Math.max(1,Math.floor(e.modelReference.contextWindowTokens*(e.compaction.thresholdPercent??.9)))}}function buildHarnessToolsWithDynamicSubagents(e,t){let n=new Map(e);if(t===void 0)return n;for(let e of buildDynamicSubagentTools(t)){if(n.has(e.name))throw Error(`Dynamic subagent "${e.name}" collides with another runtime-visible tool name.`);n.set(e.name,e)}return n}function createToolLoopHarness(e){let t=e.handleEvent;async function runStep(t,n){return e.instrumentation?.runStep({environment,eveVersion,hasInput:hasStepInput(n),session:t},e=>executeStepBody(e.session,n,e))??executeStepBody(t,n)}async function executeStepBody(n,r,i){let a=n,o=createHistoryViewPreparer({previous:e.historyView,projector:e.historyProjector});o(a.history,a.state);let projectHistory=(e,t)=>o(e,t).messages,s=getHarnessEmissionState(a.state),c=contextStorage.getStore(),l=c?.get(ParentSessionKey),u=c?.get(SessionCallbackKey),d=l!==void 0||u!==void 0,f,p=i?.createHandleEvent({getAttemptScope:()=>f,handleEvent:t,turnId:activeTurnId(s)})??t,failModelSelection=async(t,n)=>{if(throwIfTurnAborted(e.abortSignal),i?.recordError(t),!p)throw t;let r=createErrorId(),o=toErrorMessage(t);return log.error(`model selection failed terminally`,{error:t,errorId:r,sessionId:a.sessionId,turnId:n.turnId}),await emitFailedStep(p,n,{code:`MODEL_SELECTION_FAILED`,details:{errorId:r},message:o,sessionId:a.sessionId}),{next:e.mode===`task`||d?{done:!0,isError:!0,output:o}:{done:!0,output:``},session:a}},failBoundaryEvent=async(t,n)=>{if(throwIfTurnAborted(e.abortSignal),isTurnCancellation(t))throw t;if(isDynamicModelSelectionError(t))return failModelSelection(t,n);if(!p||e.mode!==`conversation`||!(t instanceof BoundaryHookError))throw t;i?.recordError(t);let r=createErrorId(),o=toErrorMessage(t);return log.error(`turn boundary handler failed — parking session`,{error:t,errorId:r,sessionId:a.sessionId,turnId:n.turnId}),s=await emitRecoverableFailedTurn(p,n,{code:`EVENT_HANDLER_FAILED`,continuationToken:a.continuationToken,details:{errorId:r},message:o}),{next:null,session:setHarnessEmissionState({...a,outputSchema:void 0},s),settledTurn:{isError:!0,output:o}}},preparePreambleTrace=async()=>await i?.preparePreamble({sequence:s.sequence,sessionStarted:s.sessionStarted,traceContext:i?.traceContext,turnId:`turn_${s.sequence}`});if(e.clearOnly===!0)return a={...a,state:clearMemorySessionState(a.state)},a=replaceSessionHistory(a,[]),await p?.(createContextClearedEvent({sequence:s.sequence,sessionId:a.sessionId,turnId:activeTurnId(s)})),await p?.(createSessionWaitingEvent()),{next:null,session:a};if(e.compactOnly===!0){if(a.history.length>0)try{let t=contextStorage.getStore(),n=await resolveActiveRuntimeModel({config:e,ctx:t,session:a});a=n.session,a=(await maybeCompact({abortSignal:e.abortSignal,auth:t?.get(AuthKey)??null,emit:p,emissionState:{...s,turnId:activeTurnId(s)},force:!0,historyProjector:e.historyProjector,messages:[...a.history],model:n.model,onCompaction:e.onCompaction,resolveModel:e.resolveModel,runtimeIdentity:e.runtimeIdentity,session:a,telemetry:i?.telemetry()})).session}catch(e){logError(log,`manual session compaction failed`,e,{sessionId:a.sessionId})}return await p?.(createSessionWaitingEvent()),{next:null,session:a}}let m=consumeDeferredStepInput({input:r,preferCurrentInput:e.mode!==`conversation`&&r!==void 0&&hasPendingApprovalBatch(a),session:a});a=m.session;let h=await resolvePendingCoordination({emit:p,session:a,stepInput:m.input,tools:e.tools});if(h.outcome===`unresolved`)return{next:null,session:h.session};a=h.session;let g=getPendingInputRequestIds(a.state),_=convertStaleResponsesToUserMessage({history:h.messages,pendingRequestIds:g,stepInput:dropStaleSessionLimitContinuationResponses({pendingRequestIds:g,stepInput:m.input}),tools:e.tools}),v=_.stepInput,y=_.kind===`converted`?{...v,message:_.displayMessage}:v,b=contextStorage.getStore();b!==void 0&&e.resolveStepDynamicTools!==void 0&&shouldPrepareApprovalReplayTools({session:a,stepInput:v})&&await e.resolveStepDynamicTools({ctx:b,event:createStepStartedEvent({modelId:a.agent.modelReference?.id??`dynamic`,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId}),messages:projectHistory(h.messages,a.state)});let x=shouldPrepareApprovalReplayTools({session:a,stepInput:v})?buildResponseAuthorizationTools({authoredTools:e.tools,context:b}):e.tools,S=await coordinateApprovalDelivery({session:a,stepInput:v,tools:x});if(a=S.session,p){for(let e of S.feedback)await p(createMessageCompletedEvent({message:e,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId}));let e=getApprovalAuditState(a.state);for(let t of e.activeCandidates.filter(e=>e.pendingEventEmitted!==!0))await p(createApprovalCandidateEvent({candidateId:t.candidateId,outcome:`pending`,requestId:t.requestId,responderPrincipalId:t.responder.principalId,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId})),a={...a,state:markApprovalCandidatePendingEventEmitted({candidateId:t.candidateId,state:a.state})};for(let t of e.candidateHistory.filter(e=>e.eventEmitted!==!0&&e.status!==`allowed`))await p(createApprovalCandidateEvent({candidateId:t.candidateId,outcome:t.status,requestId:t.requestId,responderPrincipalId:t.responder.principalId,reason:t.reason,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId})),a={...a,state:markApprovalCandidateHistoryEventEmitted({candidateId:t.candidateId,state:a.state})};for(let t of e.settlements.filter(e=>e.eventEmitted!==!0))await p(createApprovalSettledEvent({outcome:t.outcome===`allowed`?`approved`:`cancelled`,requestId:t.requestId,responderPrincipalId:t.actor.principalId,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId})),a={...a,state:markApprovalSettlementEventEmitted({requestId:t.requestId,state:a.state})}}if(S.kind===`park`)return{next:null,session:a};if(S.kind===`continue-coordination`)return{next:runStep,session:S.stepInput===void 0?a:queueDeferredStepInput(a,S.stepInput)};if(S.challenges.length>0){if(p)for(let e of S.challenges)await p(createAuthorizationRequiredEvent({authorization:e.challenge,candidateId:e.candidateId,description:e.challenge.instructions??`Authorization required for ${e.name}`,name:e.name,sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId,webhookUrl:e.hookUrl}));let e=S.stepInput===void 0?a:queueDeferredStepInput(a,S.stepInput);return{next:null,session:{...e,state:setPendingAuthorization(e.state,{challenges:S.challenges})}}}let C=resolvePendingInput({deferMessagesWhileApprovalsPending:e.mode!==`conversation`,history:h.messages,resolveApprovalKey:resolveApprovalKeyFromTools(x),session:a,stepInput:S.stepInput});if(C.outcome===`unresolved`){let t=h.outcome===`resolved`?{...C.session,history:validateHarnessModelMessages(h.messages)}:C.session;if(p&&e.mode===`conversation`&&C.deferredMessage===!0&&hasStepInput(r)){c!==void 0&&prepareDynamicInstructionPreamble(c,projectHistory(t.history,t.state));let n=[];try{let t=await preparePreambleTrace();s=await emitTurnPreamble(p,y??{},s,e.runtimeIdentity,t)}catch(e){return n=c===void 0?[]:drainDynamicInstructionUserMessages(c),t={...t,history:validateHarnessModelMessages([...t.history,...n])},a=t,failBoundaryEvent(e,{sessionStarted:!0,sequence:s.sequence,stepIndex:0,turnId:`turn_${s.sequence}`})}return n=c===void 0?[]:drainDynamicInstructionUserMessages(c),t={...t,history:validateHarnessModelMessages([...t.history,...n])},s=await emitTurnEpilogue(p,s,e.mode),{next:null,session:setHarnessEmissionState(t,s)}}return h.outcome===`resolved`?(p&&e.mode===`conversation`&&(s=await emitTurnEpilogue(p,s,e.mode),t=setHarnessEmissionState(t,s)),{next:null,session:t}):{next:null,session:C.session}}if(C.resolvedInputs!==void 0)for(let e of C.resolvedInputs)await i?.publishInputResolutions({batch:e,sessionId:a.sessionId}),p&&await p(createInputResolvedEvent({resolutions:e.inputs.map(e=>{let t={kind:e.request.kind,outcome:e.outcome,requestId:e.request.requestId};return e.response===void 0?t:{...t,response:e.response}}),sequence:e.event.sequence,stepIndex:e.event.stepIndex,turnId:e.event.turnId}));if(p&&C.rejectedActions)for(let e of C.rejectedActions)for(let t of e.results)await p(createActionResultEvent({rejected:!0,result:t,sequence:e.event.sequence,stepIndex:e.event.stepIndex,turnId:e.event.turnId}));let w=activeTurnId(s),T=getTurnClientContextState(C.session.state,w),E=C.deferredContext===!0?void 0:readClientContext(v),D=(E??T?.messages)?.map(e=>createFrameworkUserMessage(`context.instruction`,e))??[],O=[];if(v?.context!==void 0&&C.deferredContext!==!0)for(let e of v.context)O.push(createFrameworkUserMessage(`context.instruction`,e));let k=frameworkMessageKindForStepInput(v),A=normalizeUserContent(v?.message),j=A!==void 0&&!C.deferredMessage&&!C.consumedMessage?await stageAttachmentsToSandbox(A):void 0;j!==void 0&&O.push(k===void 0?createUserMessage(`user`,j):createFrameworkUserMessage(k,j));let M=[],N;if(p&&hasStepInput(r)){c!==void 0&&(prepareDynamicInstructionPreamble(c,projectHistory(C.session.history,C.session.state)),prepareMemoryPreamble(c,{history:C.messages,input:[...D,...O],state:C.session.state}));try{let t=await preparePreambleTrace();s=await emitTurnPreamble(p,y??{},s,e.runtimeIdentity,t)}catch(e){return M=c===void 0?[]:drainDynamicInstructionUserMessages(c),N=c===void 0?void 0:drainMemoryCommit(c),a={...C.session,history:validateHarnessModelMessages([...N?.history??C.session.history,...M]),state:N?.state??C.session.state},failBoundaryEvent(e,{sessionStarted:!0,sequence:s.sequence,stepIndex:0,turnId:`turn_${s.sequence}`})}M=c===void 0?[]:drainDynamicInstructionUserMessages(c),N=c===void 0?void 0:drainMemoryCommit(c),i?.setTurnId(s.turnId)}let ee=N?.history??C.session.history,P=C.session.history.length;a=setHarnessEmissionState({...C.session,history:validateHarnessModelMessages([...ee,...M]),state:N?.state??C.session.state},s);let F=validateHarnessModelMessages([...N?.history??C.messages.slice(0,P),...M,...N===void 0?C.messages.slice(P):[]]),I=await applySessionLimitContinuation({config:e,emit:p,emissionState:s,limitContinuation:C.limitContinuation,session:a});if(I.result!==null)return I.result;a=I.session;let te=getAgentHandleStore(a.state);if(!hasUnansweredToolCall(F)){let e=await c?.get(BackgroundToolExecutorKey)?.readAgentViews?.(),t=e===void 0||e.length===0?void 0:[...projectParkedAgentHandles(te??{handles:[]}).map(e=>({availability:`available`,id:e.identity.id,name:e.identity.name,statusLine:e.phase===`parked`?e.lastStatus:void 0})),...e],n=resolveAgentsAnnouncement({agentViews:t,messages:projectHistory(F,a.state),store:te});n!==void 0&&F.push(createFrameworkUserMessage(`context.state`,n))}let L=T;E!==void 0&&(L={insertionIndex:T?.insertionIndex??F.length,messages:E,turnId:w}),L!==void 0&&(a=setTurnClientContextState(a,L)),F=[...F,...O];let createModelMessages=e=>{if(L===void 0||L.messages.length===0)return[...e];let t=Math.min(Math.max(0,L.insertionIndex),e.length);return[...e.slice(0,t),...L.messages.map(e=>createFrameworkUserMessage(`context.instruction`,e)),...e.slice(t)]},R=validateHarnessModelMessages(projectHistory(createModelMessages(F),a.state)),z=c,B;try{z!==void 0&&e.dispatchDynamicModelEvent!==void 0&&await e.dispatchDynamicModelEvent({ctx:z,event:{data:{sequence:s.sequence,stepIndex:s.stepIndex,turnId:s.turnId},type:`step.started`},messages:R}),B=await resolveActiveRuntimeModel({config:e,ctx:z,session:a})}catch(e){return failModelSelection(e,s)}a=B.session;let V=B.model,ne=detectPromptCachePath(V),H=ne.kind===`anthropic-direct`?getAnthropicCacheMarker():void 0,re=buildGatewayAttributionHeaders(V,e.runtimeIdentity),U=L===void 0?void 0:Math.max(0,F.length-L.insertionIndex),W=await maybeCompact({abortSignal:e.abortSignal,auth:z?.get(AuthKey)??null,emit:p,emissionState:s,historyProjector:e.historyProjector,messages:[...F],model:V,onCompaction:e.onCompaction,promptMessages:createModelMessages(F),resolveModel:e.resolveModel,runtimeIdentity:e.runtimeIdentity,session:a,telemetry:i?.telemetry()});if(a=W.session,W.compacted&&(F=W.messages,L!==void 0&&U!==void 0&&(L={...L,insertionIndex:Math.max(0,F.length-U)},a=setTurnClientContextState(a,L))),R=validateHarnessModelMessages(normalizeModelMessages(projectHistory(createModelMessages(F),a.state))),p)try{await emitStepStarted(p,s,requireSessionModelReference(a).id,R)}catch(e){return failBoundaryEvent(e,s)}let G=getApprovedTools(a,resolveApprovalKeyFromTools(buildResponseAuthorizationTools({authoredTools:e.tools,context:z}))),K=s.sequence===0,ie=K&&z?.get(ScheduleIdKey)!==void 0,q=resolveDeliveryPolicy({hasScheduleProvenance:ie,hasOutputSchema:a.outputSchema!==void 0,isChild:z?.get(ParentSessionKey)!==void 0,isFirstTurn:K,taskDeliveryPhase:z?.get(TurnTaskDeliveryKey)}),J=createCurrentMessages(F,{historyState:z?.get(HistoryStateKey),currentTurnMessages:O,projectedMessages:R});z!==void 0&&J.addSystem(buildDynamicInstructionMessages(z));let ae=z?.get(TurnTaskDeliveryKey)===`initiating`?resolveInitiatingTaskContext({state:a.state,turnId:w}):void 0;J.addAnnouncements({availableSkills:z?.get(PendingSkillAnnouncementKey),taskState:ae?.context,deliveryInstruction:q.instruction});let Y=renderPendingApprovalsInstruction(getPendingInputBatches(a.state).flatMap(e=>e.requests));Y!==void 0&&J.add(Y,`context.state`,{cacheFriendly:!1});let oe=J.history,X=await hydrateSandboxAttachments(J.nonSystemMessages),prepareModelCallInput=e=>{let t=e?[{role:`system`,content:e}]:[],n=a.agent.system?[{role:`system`,content:a.agent.system}]:[],r=J.systemMessages.length>0||t.length>0?[...t,...n,...J.systemMessages]:void 0,o=r!==void 0&&H?applySystemCacheBreakpoint(r,H):r,c=o===void 0?a.agent.system??void 0:mergeSystemInstructions(o);return{instructions:c,telemetryRuntimeContext:i?.resolveRuntimeContext({eveVersion,emissionState:s,environment,modelInput:{instructions:c,messages:X},session:a})}},se=e.tools,runSingleModelCall=async t=>{let{instructions:n,telemetryRuntimeContext:r={}}=t.preparedInput??prepareModelCallInput(t.extraSystemNote);t.retryReason&&(r[`eve.retry.reason`]=t.retryReason);let o=t.trailingUserNote?[...X,createFrameworkUserMessage(`execution.retry`,t.trailingUserNote)]:[...X],c=buildHarnessToolsWithDynamicSubagents(e.tools,z),l=createBackgroundToolCallBatch(),u=getAdvertisedTools({session:a,tools:c});se=u;let d=await buildToolSetWithProviderTools({approvedTools:G,backgroundBatch:l,capabilities:e.capabilities,disabledProviderTools:t.disabledProviderTools,modelReference:requireSessionModelReference(a),tools:u});if(z!==void 0){let n=getAdvertisedTools({session:a,tools:buildDynamicTools(z)}),r=buildToolSetFromDefinitions({approvedTools:G,backgroundBatch:l,capabilities:e.capabilities,disabledProviderTools:t.disabledProviderTools,tools:n});for(let[e,t]of Object.entries(r)){let n=u.get(e);if(n?.runtimeAction!==void 0||n?.workflowId!==void 0)throw Error(`Dynamic tool "${e}" collides with a coordination-visible deferred tool.`);d[e]=t}}a.outputSchema!==void 0&&(d[FINAL_OUTPUT_TOOL_NAME]=buildFinalOutputTool(a.outputSchema));let m=e.workflow===!0?{maxSubagents:e.workflowMaxSubagents}:void 0,h=await getAdvertisedTools({modelTools:d,session:a,tools:u,workflow:m});a=h.session;let g=h.modelTools,_=H?applyLastToolCacheBreakpoint(g,H):g,v=activeTurnId(s),y=i?.prepareAttempt({attemptIndex:t.attemptIndex,runtimeContext:r,stepIndex:s.stepIndex,turnId:v});f=y?.scope;let b=buildStepHooks({auth:z?.get(AuthKey)??null,cachePath:ne,emit:p,emissionState:s,emitStepStarted:t.suppressStepStartedEmission!==!0,marker:H,session:a}),x={headers:re,instructions:n,model:V,onLanguageModelCallEnd(e){for(let t of e.content)t.type!==`tool-call`||t.providerExecuted===!0||isInvalidToolCall(t)||l.register({callId:t.toolCallId,input:t.input,toolName:t.toolName})},onToolExecutionEnd:logToolExecutionError,onError(e){summarizeKnownError(e.error)?.tags.includes(`config`)!==!0&&logError(log,`tool-loop stream error`,e.error)},onStepEnd:b.onStepEnd,onStepStart:b.onStepStart,prepareStep:b.prepareStep,reasoning:a.agent.reasoning,runtimeContext:r,stopWhen:isStepCount(1),telemetry:y?.telemetry,toolApproval:buildToolApproval(g),tools:_},S=new ToolLoopAgent(x),executeModelCall=async()=>{if(p){let t=[...e.tools].filter(([e,t])=>t.runtimeAction!==void 0&&u.get(e)===void 0).map(([e])=>e),n=new Set([ASK_QUESTION_TOOL_NAME,FINAL_OUTPUT_TOOL_NAME,...t]),r=await S.stream({abortSignal:e.abortSignal,messages:o}),{emittedActionCallIds:i,handledInlineToolResultCallIds:a,invalidInputToolCallIds:c,inlineAuthorizationResults:l,trailingInlineToolResultParts:d}=await emitStreamContent(p,s,r.fullStream,{excludedActionToolNames:n,tools:u});throwIfTurnAborted(e.abortSignal);let[f,m]=await Promise.all([b.stepResult,r.responseMessages]);if(f.finishReason===`content-filter`)throw new ContentFilteredModelResponseError(readGatewayGenerationId(f.providerMetadata));if(isEmptyModelResponse(f)&&extractToolResultCallIds(m).size===0&&l.length===0&&d.length===0)throw new EmptyModelResponseError;await emitStepActions(p,s,f,{emittedActionCallIds:i,excludedActionCallIds:c,excludedActionToolNames:n,handledInlineToolResultCallIds:a,tools:u});let h=f.toolResults,g=new Map(h.map(e=>[e.toolCallId,e]));for(let e of l)g.set(e.toolCallId,e);return withAccumulatedResponseMessages({invalidInputToolCallIds:c,responseMessages:appendMissingToolResultMessages({append:d,responseMessages:m}),stepResult:f,toolResults:[...g.values()]})}let t=await S.generate({abortSignal:e.abortSignal,messages:o});throwIfTurnAborted(e.abortSignal);let n=await b.stepResult;if(n.finishReason===`content-filter`)throw new ContentFilteredModelResponseError(readGatewayGenerationId(n.providerMetadata));if(isEmptyModelResponse(n)&&extractToolResultCallIds(t.responseMessages).size===0)throw new EmptyModelResponseError;return withAccumulatedResponseMessages({responseMessages:t.responseMessages,stepResult:n})};try{let e=await executeModelCall();return await y?.complete(),e}catch(e){return await y?.fail(e),rethrowNoOutputAsEmptyResponse(e)}},ce=0,runOneModelCall=async t=>runModelCallWithRetries(e=>runSingleModelCall({...t,attemptIndex:ce++,preparedInput:e===1?t.preparedInput:void 0,suppressStepStartedEmission:e!==1||t.suppressStepStartedEmission}),{sessionId:a.sessionId,turnId:s.turnId},e.abortSignal),le=prepareModelCallInput(),ue=await continuePendingWorkflowInterrupt({childResults:v?.runtimeActionResults,config:e,emit:p,emissionState:s,runStep,session:a,tools:buildHarnessToolsWithDynamicSubagents(e.tools,z)});if(ue!==null)return ue;let de=await enforceSessionUsageLimit({config:e,emit:p,emissionState:s,messages:R,session:a});if(de!==null)return de;let Z;try{Z=await runOneModelCall({preparedInput:le,suppressStepStartedEmission:!0})}catch(t){throwIfTurnAborted(e.abortSignal);let n=await runModelCallRecoveryPipeline({error:t,stages:[e=>attemptUnsupportedProviderToolRecovery({error:e.error,runOneModelCall,sessionId:a.sessionId,turnId:s.turnId}),e=>attemptEmptyResponseRecovery({emptyDeliveryEnabled:q.allowsEmptyDelivery,error:e.error,retryCallOptions:e.retryCallOptions,runOneModelCall,sessionId:a.sessionId,turnId:s.turnId})]});if(throwIfTurnAborted(e.abortSignal),n.outcome===`recovered`)Z=n.result;else{let t=n.error;if(i?.recordError(t),!p)throw t;let r=extractWorkflowStreamWriteErrorDetails(t);if(r!==null){let e=createErrorId();return log.error(`workflow stream write failed — parking session for retry by the user`,{...r,errorId:e,error:t,sessionId:a.sessionId,turnId:s.turnId}),s=await emitRecoverableFailedTurn(p,s,{code:`WORKFLOW_STREAM_WRITE_FAILED`,continuationToken:a.continuationToken,details:{...r,errorId:e},message:toErrorMessage(t)}),{next:null,session:setHarnessEmissionState(a,s)}}let o=classifyModelCallError(t),c=createErrorId(),l=summarizeKnownError(t),u=l===null?extractUpstreamRejectionMessage(t):null,f=l?.message??u?.message??toErrorMessage(t),m=l?.hint===void 0?f:`${f} ${l.hint}`,h=extractModelCallErrorDetails(t),g=buildModelCallFailureDetails({catalogSummary:l,error:t,errorId:c,modelCallDetails:h,upstreamRejection:u}),_=buildModelCallFailureLogFields({error:t,errorId:c,modelCallDetails:h,recognized:l!==null||u!==null,sessionId:a.sessionId,turnId:s.turnId});if(o===`terminal`)return l===null?log.error(u?.message??`model call failed terminally`,_):log.error(`${l.name}: ${l.message}`,{errorId:c,hint:l.hint,sessionId:a.sessionId,turnId:s.turnId}),await emitFailedStep(p,s,{code:`MODEL_CALL_FAILED`,details:g,message:f,sessionId:a.sessionId}),{next:e.mode===`task`||d?{done:!0,isError:!0,output:m}:{done:!0,output:``},session:a};if(e.mode===`task`){if(o===`recoverable`&&!(t instanceof EmptyModelResponseError)&&!(t instanceof ContentFilteredModelResponseError))throw log.warn(u?.message??`model call failed recoverably in task mode — rethrowing for durable step retry`,_),t;return log.error(u?.message??`model call failed; failing the task run`,_),await emitFailedStep(p,s,{code:`MODEL_CALL_FAILED`,details:g,message:f,sessionId:a.sessionId}),{next:{done:!0,isError:!0,output:m},session:a}}log.error(u?.message??`model call failed — parking session for retry by the user`,_),s=await emitRecoverableFailedTurn(p,s,{code:`MODEL_CALL_FAILED`,continuationToken:a.continuationToken,details:g,message:f});let v={isError:!0,output:m};return a={...a,outputSchema:void 0},{next:null,session:setHarnessEmissionState(a,s),settledTurn:v}}}let Q=accumulateTurnUsage({previous:getTurnUsageState(a.state),turnId:s.turnId,usage:extractTokenUsageDelta({costUsd:extractGatewayCostUsd(Z.providerMetadata),usage:Z.usage})});a=setTurnUsageState(a,Q);let $;try{$=formatLanguageModelGatewayId(V)}catch{$=void 0}await setEveAttributes({"$eve.model":$,"$eve.input_tokens":Q.inputTokens,"$eve.output_tokens":Q.outputTokens,"$eve.cache_read_tokens":Q.cacheReadTokens,"$eve.cache_write_tokens":Q.cacheWriteTokens,"$eve.cost_usd":Q.sawCost?Q.costUsd:void 0,"$eve.tool_count":e.tools.size});let fe=await handleStepResult({config:e,emit:p,emissionState:s,durableModelPromptMessageCount:L===void 0||L.messages.length===0?X.length:void 0,promptMessages:oe,result:Z,runStep,session:a,coordinationTools:se});return z?.set(HistoryStateKey,J.historyState),fe}return runStep}function extractTokenUsageDelta(e){let t=e.usage;if(t!==void 0||e.costUsd!==void 0)return{cacheReadTokens:t?.inputTokenDetails?.cacheReadTokens,cacheWriteTokens:t?.inputTokenDetails?.cacheWriteTokens,costUsd:e.costUsd,inputTokens:t?.inputTokens,outputTokens:t?.outputTokens}}function extractGatewayCostUsd(e){let t=readGatewayMetadata(e)?.cost;if(typeof t==`number`&&Number.isFinite(t))return t;if(typeof t==`string`){let e=Number(t);return Number.isFinite(e)?e:void 0}}function readGatewayMetadata(e){let t=e?.gateway;return t&&typeof t==`object`&&!Array.isArray(t)?t:void 0}function buildModelCallFailureDetails(e){let{catalogSummary:t,error:n,errorId:r,modelCallDetails:i,upstreamRejection:a}=e;if(t!==null){let e={errorId:r,message:t.message,name:t.name,semanticErrorId:t.id,...i};return t.hint!==void 0&&(e.hint=t.hint),e}return a===null?{...formatError(n,r),...i}:{errorId:r,message:toErrorMessage(n),name:a.name,...i}}function buildModelCallFailureLogFields(e){let t={errorId:e.errorId,sessionId:e.sessionId,turnId:e.turnId};return e.recognized?{...t,details:e.modelCallDetails}:{...t,error:e.error}}async function runModelCallRecoveryPipeline(e){let t=e.error,n;for(let r of e.stages){let e=await r({error:t,retryCallOptions:n});if(e.outcome===`recovered`)return e;e.outcome===`failed`&&(t=e.error,n=e.retryCallOptions)}return{outcome:`failed`,error:t}}function withAccumulatedResponseMessages(e){let{stepResult:t}=e;return{content:t.content,finishReason:t.finishReason,...e.invalidInputToolCallIds===void 0?{}:{invalidInputToolCallIds:e.invalidInputToolCallIds},providerMetadata:t.providerMetadata,response:{...t.response,messages:[...e.responseMessages]},text:t.text,toolCalls:t.toolCalls,toolResults:e.toolResults===void 0?t.toolResults:[...e.toolResults],usage:t.usage}}function appendMissingToolResultMessages(e){let t=extractToolResultCallIds(e.responseMessages),n=e.append.filter(e=>!t.has(e.toolCallId));return[...e.responseMessages,...n.length>0?[{role:`tool`,content:[...n]}]:[]]}function getInvalidToolCallInputErrors(e){let t=[];for(let n of e.toolCalls){if(n.toolName===FINAL_OUTPUT_TOOL_NAME)continue;let e=getInvalidToolCallInputError({toolCall:n});e!==void 0&&t.push(e)}return t}function extractToolResultCallIds(e){let t=new Set;for(let n of e)if(Array.isArray(n.content))for(let e of n.content)typeof e==`object`&&e&&e.type===`tool-result`&&t.add(e.toolCallId);return t}function hasUnansweredToolCall(e){let t=new Set,n=new Set;for(let r of e)if(Array.isArray(r.content))for(let e of r.content)typeof e==`object`&&e&&(e.type===`tool-call`&&t.add(e.toolCallId),e.type===`tool-result`&&n.add(e.toolCallId));for(let e of t)if(!n.has(e))return!0;return!1}async function attemptUnsupportedProviderToolRecovery(e){let t=extractUnsupportedProviderToolTypes(e.error);if(t.length===0)return{outcome:`skipped`};let n=[];for(let e of t){let t=resolveFrameworkToolFromUpstreamType(e);t!==null&&!n.includes(t)&&n.push(t)}if(n.length===0)return{outcome:`skipped`};log.warn(`disabling unsupported provider tool(s); retrying step once`,{disabled:n,sessionId:e.sessionId,turnId:e.turnId,upstreamTypes:t});let r={disabledProviderTools:new Set(n),extraSystemNote:buildDisabledToolNote(n)};try{return{outcome:`recovered`,result:await e.runOneModelCall({...r,suppressStepStartedEmission:!0})}}catch(e){return{outcome:`failed`,error:e,retryCallOptions:r}}}function buildDisabledToolNote(e){let t=e.join(`, `);return`The following ${e.length===1?`tool is`:`tools are`} not available with the current model and has been removed: ${t}. Proceed using the remaining tools or your training knowledge.`}function isEmptyModelResponse(e){return e.toolCalls.length===0&&e.toolResults.length===0&&resolveAssistantStepText(e.response.messages,e.text)===null}function rethrowNoOutputAsEmptyResponse(e){throw isNoOutputGeneratedError(e)?new EmptyModelResponseError({cause:e}):e}const EMPTY_RESPONSE_NUDGE=`Your previous reply was empty and was not delivered. Answer now from the tool results above; do not re-run tools or mention this notice.`;function buildEmptyResponseNudge(e){return e?`${EMPTY_RESPONSE_NUDGE} If the current task explicitly requires conditional delivery and there is nothing to report, reply with exactly ${EMPTY_DELIVERY_SENTINEL}.`:EMPTY_RESPONSE_NUDGE}async function attemptEmptyResponseRecovery(e){if(!(e.error instanceof EmptyModelResponseError))return{outcome:`skipped`};log.warn(`empty model response; reissuing the model call once`,{sessionId:e.sessionId,turnId:e.turnId});try{return{outcome:`recovered`,result:await e.runOneModelCall({...e.retryCallOptions,retryReason:`empty-response`,suppressStepStartedEmission:!0,trailingUserNote:buildEmptyResponseNudge(e.emptyDeliveryEnabled)})}}catch(t){return{outcome:`failed`,error:t,retryCallOptions:e.retryCallOptions}}}async function handleStepResult(e){let{config:t,emit:n,promptMessages:r,result:i,runStep:a}=e,{emissionState:o,session:s}=e,c=resolveAssistantStepText(i.response.messages,i.text),l=i.finishReason!==`tool-calls`&&i.toolCalls.length===0&&hasEmptyDeliverySentinel(c),u=getInvalidToolCallInputErrors({toolCalls:i.toolCalls}),d=new Set([...i.invalidInputToolCallIds??[],...i.toolCalls.filter(isInvalidToolCall).map(e=>e.toolCallId),...u.map(e=>e.toolCallId)]),f=l?[]:appendMissingToolResultMessages({append:u.map(e=>createToolResultMessagePartFromToolError(e)),responseMessages:i.response.messages}),p=l?null:c,m=new Set;for(let e of[...i.content??[],...i.toolResults??[]])(e.type===`tool-result`||e.type===`tool-error`)&&e.providerExecuted===!0&&m.add(e.toolCallId);let h=normalizeProviderToolHistory({messages:f,providerExecutedOutcomeIds:m}),g=h.messages,_={...s,compaction:createNextCompactionConfig(s.compaction,e.durableModelPromptMessageCount,i)},v=t.workflow===!0?readWorkflowContinuationSecurity(_):void 0;if(v!==void 0){let t=await getWorkflowSandboxInterrupt(i,v);if(t!==void 0){if(!isWorkflowTaskInterrupt(t))throw Error(`Unsupported Workflow interrupt kind "${t.payload.kind}".`);return await parkOnWorkflowInterrupt({baseSession:_,emit:n,emissionState:o,interrupt:t,promptMessages:r,responseMessages:g,tools:e.coordinationTools,usedCalls:0})}}let y=extractToolApprovalInputRequests({content:i.content??[],excludedCallIds:d}),b=new Set(y.map(e=>e.action.callId)),x=extractQuestionInputRequests({toolCalls:i.toolCalls,excludedCallIds:new Set([...d,...b]),tools:e.coordinationTools}),S=[...y,...x],C=renderPendingApprovalsSnippet(y),w=g.findIndex(e=>e.role!==`tool`),T=w===-1?g:g.slice(0,w),E=g.slice(T.length),D=validateHarnessModelMessages([...r,...T,...C===void 0?[]:[createFrameworkUserMessage(`context.state`,C)]]),O=getAdvertisedTools({session:_,tools:e.coordinationTools}),k=(i.toolCalls??[]).filter(e=>!d.has(e.toolCallId)).filter(t=>isDeferredHarnessTool(e.coordinationTools.get(t.toolName))).filter(e=>isDeferredHarnessTool(O.get(e.toolName))?!0:(log.warn(`deferred tool call blocked because tool is not advertised`,{callId:e.toolCallId,sessionId:_.sessionId,toolName:e.toolName}),!1)).map(e=>createCoordinationRequestFromToolCall({toolCall:e,tools:O}));if(k.length>0){let e=k.flatMap(e=>e.kind===`runtime-action`?[e.request]:[]),t=k.flatMap(e=>e.kind===`task`?[e.request]:[]);if(S.length===0)return{next:null,session:setHarnessEmissionState(setPendingCoordinationBatch({runtimeActions:e,tasks:t,event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},responseMessages:g,session:{..._,history:validateHarnessModelMessages(r)}}),advanceStep(o))};let i=setPendingCoordinationBatch({runtimeActions:e,tasks:t,event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},responseMessages:E,session:{..._,history:D}});return i=appendPendingInputBatch({event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},requests:S,responseMessages:[],session:i}),n&&await n(createInputRequestedEvent({requests:S,sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId})),{next:null,session:setHarnessEmissionState(i,advanceStep(o))}}if(S.length>0){let e=buildResponseAuthorizationTools({authoredTools:t.tools,context:contextStorage.getStore()}),r=appendPendingInputBatch({event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},requests:S,responseAuthRequiredRequestIds:y.filter(t=>{let n=e.get(t.action.toolName)?.approval;return n!==void 0&&typeof n!=`function`&&n.response!==void 0}).map(e=>e.requestId),responseMessages:E,session:{..._,history:D}});return n&&(await n(createInputRequestedEvent({requests:S,sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId})),t.mode===`conversation`&&(o=await emitTurnEpilogue(n,o,t.mode),r=setHarnessEmissionState(r,o))),{next:hasDeferredStepInput(r)?a:null,session:r}}let A=resolveInlineAuthorizationInterrupt({messages:[...r,...g],toolResults:i.toolResults});if(A){let{challenges:e,history:r}=A;if(n){for(let t of getSupersededAuthorizationChallenges(_.state,e))await n(createAuthorizationCompletedEvent({attemptId:t.attemptId,authorization:t.challenge,name:t.name,outcome:`failed`,reason:`Superseded by a newer authorization attempt.`,sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId}));for(let t of e)await n(createAuthorizationRequiredEvent({attemptId:t.attemptId,authorization:t.challenge,name:t.name,description:t.challenge.instructions??`Authorization required for ${t.name}`,webhookUrl:t.hookUrl,sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId}));t.mode===`conversation`&&(o=await emitTurnEpilogue(n,o,t.mode))}return{next:null,session:setHarnessEmissionState({..._,history:validateHarnessModelMessages(r),state:setPendingAuthorization(_.state,{challenges:e})},o)}}let j=g,M=validateHarnessModelMessages([...r,...j]),N={..._,history:M};return(N.outputSchema===void 0||extractFinalOutput(i)===void 0)&&(j.at(-1)?.role===`tool`||h.outcomeEndsResponse||hasDeferredStepInput(N))?(n&&(o=advanceStep(o),N=setHarnessEmissionState(N,o)),{next:a,session:N}):t.mode===`task`?finishTaskTurn({emissionState:o,emit:n,history:r,result:i,schema:N.outputSchema,session:N,stepOutput:p}):finishConversationTurn({emissionState:o,emit:n,history:r,result:i,schema:N.outputSchema,session:N,stepOutput:p})}function isDeferredHarnessTool(e){return e?.runtimeAction!==void 0||e?.workflowId!==void 0&&e.execution!==`background`}const OUTPUT_SCHEMA_NOT_FULFILLED={code:`OUTPUT_SCHEMA_NOT_FULFILLED`,message:`The agent could not produce a result matching the requested schema.`};function extractFinalOutput(e){return(e.toolCalls??[]).find(e=>e.toolName===FINAL_OUTPUT_TOOL_NAME&&!isInvalidToolCall(e))?.input}function persistStructuredAssistantTurn(e,t,n){return{...e,history:[...t,{content:JSON.stringify(n),role:`assistant`}],outputSchema:void 0}}async function emitStructuredResult(e,t,n,r){return await e(createResultCompletedEvent({result:n,sequence:t.sequence,stepIndex:t.stepIndex,turnId:t.turnId})),emitTurnEpilogue(e,t,r)}async function finishTaskTurn(e){let{emit:t,history:n,result:r,schema:i,stepOutput:a}=e,{emissionState:o,session:s}=e;if(s=clearTurnClientContextState(s),i===void 0)return t&&(o=await emitTurnEpilogue(t,o,`task`),s=setHarnessEmissionState(s,o)),{next:{done:!0,output:a??``},session:s};let c=extractFinalOutput(r);return c===void 0?(s={...s,outputSchema:void 0},t&&await emitFailedStep(t,o,{...OUTPUT_SCHEMA_NOT_FULFILLED,sessionId:s.sessionId}),{next:{done:!0,isError:!0,output:OUTPUT_SCHEMA_NOT_FULFILLED.message},session:s}):(s=persistStructuredAssistantTurn(s,n,c),t&&(o=await emitStructuredResult(t,o,c,`task`),s=setHarnessEmissionState(s,o)),{next:{done:!0,output:c},session:s})}async function finishConversationTurn(e){let{emit:t,history:n,result:r,schema:i,stepOutput:a}=e,{emissionState:o,session:s}=e;if(s=clearTurnClientContextState(s),i===void 0)return t&&(o=await emitTurnEpilogue(t,o,`conversation`),s=setHarnessEmissionState(s,o)),{next:null,session:s,settledTurn:{output:a??``}};let c=extractFinalOutput(r);if(c===void 0){s={...s,outputSchema:void 0},t&&(o=await emitRecoverableFailedTurn(t,o,{...OUTPUT_SCHEMA_NOT_FULFILLED,continuationToken:s.continuationToken}),s=setHarnessEmissionState(s,o));let e={isError:!0,output:OUTPUT_SCHEMA_NOT_FULFILLED.message};return{next:null,session:s,settledTurn:e}}return s=persistStructuredAssistantTurn(s,n,c),t&&(o=await emitStructuredResult(t,o,c,`conversation`),s=setHarnessEmissionState(s,o)),{next:null,session:s,settledTurn:{output:c}}}async function continuePendingWorkflowInterrupt(e){let t=getPendingWorkflowInterrupt(e.session.state);if(t===void 0)return null;let n=t.interrupt;if(!isWorkflowTaskInterrupt(n))throw Error(`Unsupported Workflow interrupt kind "${n.payload.kind}".`);let r=e.childResults??[],i=getWorkflowTaskInterrupts(n);e.emit!==void 0&&r.length>0&&await emitWorkflowActionResults({emit:e.emit,emissionState:e.emissionState,interrupts:i,results:r});let a=getWorkflowContinuationSecurity(e.session),o;try{let t=buildWorkflowHostTools({tools:e.tools}),i=n,s=0;for(;;){o=await continueWorkflowSandboxInterrupt({bridgeRequestLimit:resolveWorkflowSandboxBridgeRequestLimit(e.config.workflowMaxSubagents),continuationSecurity:a,interrupt:i,resolution:r[s]?.output,tools:t});let n=await unwrapWorkflowSandboxResult(o,a);if(n.status!==`interrupted`||!isWorkflowTaskInterrupt(n.interrupt)||s+1>=r.length)break;let c=getWorkflowTaskInterrupts(n.interrupt)[0];if(c===void 0)throw Error(`Workflow continuation contains no pending workflow-task interrupt.`);s++,i=c}}catch(e){logError(log,`Workflow interrupt continuation failed`,e),o={error:`workflow_continuation_failed`,message:toErrorMessage(e),retryable:!1}}let s=await unwrapWorkflowSandboxResult(o,a),c=s.status===`interrupted`?s.interrupt:s.output,l=replaceWorkflowToolResult(validateHarnessModelMessages([...e.session.history,...t.responseMessages]),n.outerToolCallId,c),u=clearPendingWorkflowInterrupt({...e.session,history:l});if(s.status===`interrupted`){if(!isWorkflowTaskInterrupt(s.interrupt))throw Error(`Unsupported Workflow interrupt kind "${s.interrupt.payload.kind}".`);let n=e.session.history.length,r=l.slice(0,n),i=l.slice(n);return u={...u,history:r},await parkOnWorkflowInterrupt({baseSession:u,emit:e.emit,emissionState:e.emissionState,interrupt:s.interrupt,promptMessages:r,responseMessages:i,tools:e.tools,usedCalls:t.usedCalls})}return{next:e.runStep,session:u}}function replaceWorkflowToolResult(e,t,n){if(t===void 0)return[...e];let r=typeof n==`string`?{type:`text`,value:n}:{type:`json`,value:n};return e.map(e=>{if(e.role!==`tool`)return e;let n=e.content.map(e=>e.type!==`tool-result`||e.toolCallId!==t?e:{...e,output:r});return{...e,content:n}})}async function parkOnWorkflowInterrupt(e){let t=getWorkflowTaskInterrupts(e.interrupt),n=t[0];if(n===void 0)throw Error(`Workflow continuation contains no pending workflow-task interrupt.`);e.emit!==void 0&&await emitWorkflowActionsRequested({emit:e.emit,emissionState:e.emissionState,interrupts:t,tools:e.tools});let r={...e.baseSession,history:[...e.promptMessages]},i=setPendingWorkflowInterrupt({interrupt:n,responseMessages:e.responseMessages,session:r,usedCalls:e.usedCalls});return{next:null,session:setHarnessEmissionState(i,e.emissionState)}}function createNextCompactionConfig(e,t,n){let r={recentWindowSize:e.recentWindowSize,threshold:e.threshold,thresholdPercent:e.thresholdPercent};return n.usage?.inputTokens!==void 0&&t!==void 0&&(r.lastKnownInputTokens=n.usage.inputTokens,r.lastKnownPromptMessageCount=t),r}function replaceSessionHistory(e,t){return contextStorage.getStore()?.delete(HistoryStateKey),{...e,history:t,compaction:{recentWindowSize:e.compaction.recentWindowSize,threshold:e.compaction.threshold,thresholdPercent:e.compaction.thresholdPercent}}}async function maybeCompact(e){let{emit:t,emissionState:n}=e,r=e.messages,i=e.session,a=e.promptMessages??r,o=validateHarnessModelMessages(e.historyProjector?.({messages:a,state:i.state})??a),s=e.force===!0||shouldCompact(o,i.compaction),c=shouldCanonicalizeMemory(r);if(!s&&!c)return{compacted:!1,messages:r,session:i};let l=await resolveCompactionModel({compactionModelReference:i.agent.compactionModelReference,model:e.model,modelReference:requireSessionModelReference(i),resolveModel:e.resolveModel}),u=i.agent.compactionModelReference??requireSessionModelReference(i),d=mergeProviderSafetyIdentifier(u,l.providerOptions,e.auth);if(t){let e=contextStorage.getStore();e!==void 0&&prepareMemoryCompaction(e,{history:r,state:i.state}),await t(createCompactionRequestedEvent({modelId:formatLanguageModelGatewayId(l.model),sequence:n.sequence,sessionId:i.sessionId,turnId:n.turnId,usageInputTokens:getInputTokenCount(o,i.compaction)}),o)}let f=canonicalizeMemoryRecords(r),p=validateHarnessModelMessages(e.historyProjector?.({messages:f.ordinary,state:i.state})??f.ordinary),m=s?await compactMessages([...p],l.model,i.compaction,d,e.telemetry,buildGatewayAttributionHeaders(l.model,e.runtimeIdentity),e.abortSignal,e.force===!0):[...p];if(r=validateHarnessModelMessages([...f.memory,...m]),e.onCompaction)for(let t of e.onCompaction())r.push(t);if(t){let a=contextStorage.getStore();if(a!==void 0&&prepareMemoryCompaction(a,{history:r,state:i.state}),await t(createCompactionCompletedEvent({modelId:formatLanguageModelGatewayId(l.model),sequence:n.sequence,sessionId:i.sessionId,turnId:n.turnId}),e.historyProjector?.({messages:r,state:i.state})??r),a!==void 0){let e=drainMemoryCommit(a);e!==void 0&&(r=validateHarnessModelMessages(e.history),i={...i,state:e.state})}}return{compacted:!0,messages:r,session:replaceSessionHistory(i,r)}}function resolveApprovalKeyFromTools(e){return t=>{let n=e.get(t.action.toolName);if(n?.approvalKey!==void 0)return n.approvalKey(t.action.input)}}async function runModelCallWithRetries(e,t,n){for(let r=1;;r++){throwIfTurnAborted(n);try{return await e(r)}catch(e){if(throwIfTurnAborted(n),r===3||classifyModelCallError(e)!==`retry`)throw e;let i=500*2**(r-1)+Math.floor(Math.random()*250);log.warn(`model call failed transiently — retrying`,{attempt:r,delayMs:i,sessionId:t.sessionId,turnId:t.turnId,error:e}),await new Promise(e=>setTimeout(e,i))}}}export{appendMissingToolResultMessages,createToolLoopHarness};