eve/dist/src/harness/tool-loop.js

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

import{createErrorId,createLogger,formatError,logError,recordErrorOnSpan}from"#internal/logging.js";import{resolveInstalledPackageInfo}from"#internal/application/package.js";import{EmptyModelResponseError,classifyModelCallError,extractModelCallErrorDetails,extractUnsupportedProviderToolTypes,isNoOutputGeneratedError,summarizeKnownModelCallConfigError,summarizeKnownModelCallRequestError}from"#harness/model-call-error.js";import{toErrorMessage}from"#shared/errors.js";import{createActionResultEvent,createAuthorizationRequiredEvent,createCompactionCompletedEvent,createCompactionRequestedEvent,createInputRequestedEvent,createResultCompletedEvent}from"#protocol/message.js";import{formatLanguageModelGatewayId}from"#internal/runtime-model.js";import{contextStorage}from"#context/container.js";import{ToolLoopAgent,isStepCount}from"ai";import{advanceStep,emitFailedStep,emitRecoverableFailedTurn,emitStepStarted,emitStreamContent,emitTurnEpilogue,emitTurnPreamble,getHarnessEmissionState,setHarnessEmissionState}from"#harness/emission.js";import{setEveAttributes}from"#runtime/attributes/emit.js";import{isCodeModeRuntimeActionInterrupt}from"#harness/code-mode-runtime-action-state.js";import{clearPendingCodeModeInterrupt,getPendingCodeModeInterrupt,setPendingCodeModeInterrupt}from"#harness/code-mode-interrupt-state.js";import{createRuntimeActionRequestFromToolCall,resolvePendingRuntimeActions,setPendingRuntimeActionBatch}from"#harness/runtime-actions.js";import{CODE_MODE_TOOL_NAME,loadCodeModeModule}from"#shared/code-mode.js";import{isAuthorizationSignal,setPendingAuthorization}from"#harness/authorization.js";import{resolveAssistantStepText}from"#harness/messages.js";import{buildDynamicInstructionMessages}from"#context/dynamic-instruction-lifecycle.js";import{PendingSkillAnnouncementKey}from"#context/dynamic-skill-lifecycle.js";import{consumeDeferredStepInput,getApprovedTools,hasDeferredStepInput,hasStepInput,resolvePendingInput,setPendingInputBatch}from"#harness/input-requests.js";import{buildDynamicTools}from"#context/build-dynamic-tools.js";import{isCodeModeConnectionAuthInterrupt}from"#runtime/framework-tools/code-mode-connection-auth.js";import{isSandboxEnabled,selectSandboxSurfaces}from"#harness/sandbox-surface.js";import{buildToolSetFromDefinitions,buildToolSetWithProviderTools}from"#harness/tools.js";import{readToolInterrupt}from"#harness/tool-interrupts.js";import{ASK_QUESTION_TOOL_NAME}from"#runtime/framework-tools/ask-question.js";import{WEB_SEARCH_TOOL_DEFINITION}from"#runtime/framework-tools/web-search.js";import{extractQuestionInputRequests,extractToolApprovalInputRequests}from"#harness/input-extraction.js";import{applyLastToolCacheBreakpoint,applySystemCacheBreakpoint,detectPromptCachePath,getAnthropicCacheMarker}from"#harness/prompt-cache.js";import{resolveFrameworkToolFromUpstreamType,resolveGatewayPinForWebSearchBackend,resolveWebSearchBackend}from"#harness/provider-tools.js";import{context,trace}from"#compiled/@opentelemetry/api/index.js";import{hydrateSandboxAttachments,stageAttachmentsToSandbox}from"#harness/attachment-staging.js";import{applySandboxToolSet,buildSandboxHostTools,createEveCodeModeOptions}from"#harness/code-mode.js";import{createCodeModeLifecycle}from"#harness/code-mode-lifecycle.js";import{compactMessages,getInputTokenCount,resolveCompactionModel,shouldCompact}from"#harness/compaction.js";import{accumulateTurnUsage,getTurnUsageState,setTurnUsageState}from"#harness/turn-tag-state.js";import{buildTelemetryRuntimeContext}from"#harness/instrumentation-runtime-context.js";import{getInstrumentationConfig}from"#harness/instrumentation-config.js";import{extractWorkflowStreamWriteErrorDetails}from"#harness/workflow-stream-error.js";import{ensureOtelIntegration}from"#harness/otel-integration.js";import{buildStepHooks,emitStepActions,isInvalidToolCall}from"#harness/step-hooks.js";import{FINAL_OUTPUT_TOOL_NAME,buildFinalOutputTool}from"#runtime/framework-tools/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 enrichTelemetry(e,t,n){if(e===void 0)return;let r={};for(let e of Object.keys(n??{}))r[e]=!0;return{functionId:e.functionId??t,includeRuntimeContext:r,isEnabled:!0,recordInputs:e.recordInputs??!0,recordOutputs:e.recordOutputs??!0}}function resolveGatewayPinForStep(e){if(e.cachePath.kind!==`gateway-auto`||e.tools[WEB_SEARCH_TOOL_DEFINITION.name]===void 0)return;let t=resolveWebSearchBackend(e.modelReference);return t===null?void 0:resolveGatewayPinForWebSearchBackend(t)??void 0}function buildGatewayAttributionHeaders(e,t){if(typeof e!=`string`)return;let n=t?.agentName??t?.agentId,r=process.env.VERCEL_PROJECT_PRODUCTION_URL||process.env.VERCEL_URL,i=r?`https://${r}`:void 0;if(!n&&!i)return;let a={};return n&&(a[`x-title`]=n),i&&(a[`http-referer`]=i),a}const TURN_TRACE_STATE_KEY=`eve.harness.turnTrace`;function getTurnTraceState(e){return e.state?.[TURN_TRACE_STATE_KEY]}function setTurnTraceState(e,t){let n={traceId:t.traceId,spanId:t.spanId,traceFlags:t.traceFlags};return{...e,state:{...e.state,[TURN_TRACE_STATE_KEY]:n}}}function resolveStepOtelContext(e,t,n){if(t)return trace.setSpan(context.active(),t);if(e){let e=getTurnTraceState(n);if(e){let t=trace.wrapSpanContext({traceId:e.traceId,spanId:e.spanId,traceFlags:e.traceFlags});return trace.setSpan(context.active(),t)}}}function createToolLoopHarness(t){let n=t.handleEvent,a=getInstrumentationConfig();a!==void 0&&ensureOtelIntegration();let l=a===void 0?void 0:trace.getTracer(`eve`),u=t.runtimeIdentity?.agentName;async function runStep(e,t){let n;if(l&&hasStepInput(t)){let t=a?.functionId??u,r={"eve.version":eveVersion,"eve.environment":environment,"eve.session.id":e.sessionId};t&&(r[`ai.telemetry.functionId`]=t),n=l.startSpan(`ai.eve.turn`,{attributes:r})}let r=resolveStepOtelContext(l,n,e),executeStep=()=>executeStepBody(e,t,n);try{return r?await context.with(r,executeStep):await executeStep()}finally{n?.end()}}async function executeStepBody(l,h,g){let _=l;g&&(_=setTurnTraceState(_,g.spanContext()));let v=getHarnessEmissionState(_.state),y=consumeDeferredStepInput({input:h,session:_});_=y.session;let C=await resolvePendingRuntimeActions({emit:n,session:_,stepInput:y.input});if(C.outcome===`unresolved`)return{next:null,session:C.session};_=C.session;let w=resolvePendingInput({history:C.messages,resolveApprovalKey:resolveApprovalKeyFromTools(t.tools),session:_,stepInput:y.input});if(w.outcome===`unresolved`)return{next:null,session:w.session};if(n&&w.rejectedActions)for(let e of w.rejectedActions.results)await n(createActionResultEvent({rejected:!0,result:e,sequence:w.rejectedActions.event.sequence,stepIndex:w.rejectedActions.event.stepIndex,turnId:w.rejectedActions.event.turnId}));n&&hasStepInput(h)&&(v=await emitTurnPreamble(n,h??{},v,t.runtimeIdentity),_=setHarnessEmissionState(_,v),g&&g.setAttribute(`eve.turn.id`,v.turnId)),_=w.session;let T=w.messages;if(y.input?.context!==void 0)for(let e of y.input.context)T.push({content:e,role:`user`});if(y.input?.message!==void 0&&!w.deferredMessage){let e=await stageAttachmentsToSandbox(y.input.message);T.push({content:e,role:`user`})}let E=await t.resolveModel(_.agent.modelReference),D=detectPromptCachePath(E),O=D.kind===`anthropic-direct`?getAnthropicCacheMarker():void 0,k=buildGatewayAttributionHeaders(E,t.runtimeIdentity);({messages:T,session:_}=await maybeCompact({emit:n,emissionState:v,headers:k,messages:T,model:E,onCompaction:t.onCompaction,resolveModel:t.resolveModel,session:_,telemetry:enrichTelemetry(a,u)??void 0}));let A=getApprovedTools(_),j=contextStorage.getStore(),M=await hydrateSandboxAttachments(T),N=[],P=[];for(let e of M)e.role===`system`?N.push(e):P.push(e);if(j!==void 0){N.push(...buildDynamicInstructionMessages(j));let e=j.get(PendingSkillAnnouncementKey);e!==void 0&&e.length>0&&N.push({role:`system`,content:e})}let F=P,prepareModelCallInput=e=>{let t=e?[{role:`system`,content:e}]:[],n=_.agent.system?[{role:`system`,content:_.agent.system}]:[],r=N.length>0||t.length>0?[...t,...n,...N]:void 0,i=r!==void 0&&O?applySystemCacheBreakpoint(r,O):r??_.agent.system??void 0;return{instructions:i,telemetryRuntimeContext:buildTelemetryRuntimeContext({eveVersion,authored:a,emissionState:v,environment,modelInput:{instructions:i,messages:F},session:_})}},runOneModelCall=async e=>{let{instructions:i,telemetryRuntimeContext:s={}}=e.preparedInput??prepareModelCallInput(e.extraSystemNote);e.retryReason&&(s[`eve.retry.reason`]=e.retryReason);let c=e.trailingUserNote?[...F,{role:`user`,content:e.trailingUserNote}]:F,l=selectSandboxSurfaces(t),f=await buildToolSetWithProviderTools({approvedTools:A,capabilities:t.capabilities,disabledProviderTools:e.disabledProviderTools,modelReference:_.agent.modelReference,tools:t.tools});if(j!==void 0){let n=buildDynamicTools(j),r=buildToolSetFromDefinitions({approvedTools:A,capabilities:t.capabilities,disabledProviderTools:e.disabledProviderTools,tools:n});for(let[e,t]of Object.entries(r))f[e]=t}_.outputSchema!==void 0&&(f[FINAL_OUTPUT_TOOL_NAME]=buildFinalOutputTool(_.outputSchema));let p=l.length>0?(await applySandboxToolSet({harnessTools:t.tools,lifecycle:n===void 0?void 0:createCodeModeLifecycle({emit:n,emissionState:v,tools:t.tools}),tools:f,surfaces:l})).modelTools:f,m=O?applyLastToolCacheBreakpoint(p,O):p,h=resolveGatewayPinForStep({cachePath:D,modelReference:_.agent.modelReference,tools:m}),g=buildStepHooks({cachePath:D,emit:n,emissionState:v,emitStepStarted:e.suppressStepStartedEmission!==!0,gatewayPinProvider:h,marker:O,session:_}),y=new ToolLoopAgent({headers:k,instructions:i,model:E,onToolExecutionEnd:logToolExecutionError,onError(e){summarizeKnownModelCallConfigError(e.error)===null&&logError(log,`tool-loop stream error`,e.error)},onStepFinish:g.onStepFinish,prepareStep:g.prepareStep,runtimeContext:s,stopWhen:isStepCount(1),telemetry:enrichTelemetry(a,u,s),tools:m}),executeModelCall=async()=>{if(n){let e=await y.stream({messages:c}),{handledInlineToolResultCallIds:r,inlineAuthorizationResults:i,inlineToolResultParts:a}=await emitStreamContent(n,v,e.fullStream),s=await g.stepResult;if(isEmptyModelResponse(s))throw new EmptyModelResponseError;if(await emitStepActions(n,v,s,{excludedActionToolNames:new Set([ASK_QUESTION_TOOL_NAME,CODE_MODE_TOOL_NAME,FINAL_OUTPUT_TOOL_NAME]),handledInlineToolResultCallIds:r,tools:t.tools}),a.length>0||i.length>0){let e=s.toolResults,t=new Map(e.map(e=>[e.toolCallId,e]));for(let e of i)t.set(e.toolCallId,e);return{content:s.content,finishReason:s.finishReason,response:{...s.response,...a.length>0?{messages:[{role:`tool`,content:[...a]},...s.response.messages]}:{}},text:s.text,toolCalls:s.toolCalls,toolResults:[...t.values()],usage:s.usage}}return s}await y.generate({messages:c});let e=await g.stepResult;if(isEmptyModelResponse(e))throw new EmptyModelResponseError;return e};return runModelCallWithRetries(()=>executeModelCall().catch(rethrowNoOutputAsEmptyResponse),{sessionId:_.sessionId,turnId:v.turnId})},I=prepareModelCallInput();n&&await emitStepStarted(n,v,T);let L=await continuePendingCodeModeInterrupt({capabilities:t.capabilities,childResults:y.input?.runtimeActionResults,config:t,emit:n,emissionState:v,messages:T,runStep,session:_});if(L!==null)return L;let R;try{R=await runOneModelCall({preparedInput:I,suppressStepStartedEmission:!0})}catch(r){let a=await runModelCallRecoveryPipeline({error:r,stages:[e=>attemptUnsupportedProviderToolRecovery({error:e.error,runOneModelCall,sessionId:_.sessionId,turnId:v.turnId}),e=>attemptEmptyResponseRecovery({error:e.error,retryCallOptions:e.retryCallOptions,runOneModelCall,sessionId:_.sessionId,turnId:v.turnId})]});if(a.outcome===`recovered`)R=a.result;else{let r=a.error;if(g&&recordErrorOnSpan(g,r),!n)throw r;let o=extractWorkflowStreamWriteErrorDetails(r);if(o!==null){let t=createErrorId();return log.error(`workflow stream write failed — parking session for retry by the user`,{...o,errorId:t,error:r,sessionId:_.sessionId,turnId:v.turnId}),v=await emitRecoverableFailedTurn(n,v,{code:`WORKFLOW_STREAM_WRITE_FAILED`,details:{...o,errorId:t},message:toErrorMessage(r)}),{next:null,session:setHarnessEmissionState(_,v)}}let l=classifyModelCallError(r),u=createErrorId(),m=l===`terminal`?summarizeKnownModelCallConfigError(r):null,h=m===null?summarizeKnownModelCallRequestError(r):null,y=m?.message??h?.message??toErrorMessage(r),b=extractModelCallErrorDetails(r),x=buildModelCallFailureDetails({configSummary:m,error:r,errorId:u,modelCallDetails:b,requestSummary:h}),S=buildModelCallFailureLogFields({error:r,errorId:u,modelCallDetails:b,requestSummary:h,sessionId:_.sessionId,turnId:v.turnId});return l===`terminal`?(m===null?log.error(h?.message??`model call failed terminally`,S):log.error(`${m.name}: ${m.message}`,{errorId:u,sessionId:_.sessionId,turnId:v.turnId}),await emitFailedStep(n,v,{code:`MODEL_CALL_FAILED`,details:x,message:y,sessionId:_.sessionId}),{next:{done:!0,output:``},session:_}):t.mode===`task`?(log.error(h?.message??`model call failed; failing the task run`,S),await emitFailedStep(n,v,{code:`MODEL_CALL_FAILED`,details:x,message:y,sessionId:_.sessionId}),{next:{done:!0,isError:!0,output:y},session:_}):(log.error(h?.message??`model call failed — parking session for retry by the user`,S),v=await emitRecoverableFailedTurn(n,v,{code:`MODEL_CALL_FAILED`,details:x,message:y}),{next:null,session:setHarnessEmissionState(_,v)})}}let z=accumulateTurnUsage({previous:getTurnUsageState(_.state),turnId:v.turnId,usage:R.usage??{}});_=setTurnUsageState(_,z);let B;try{B=formatLanguageModelGatewayId(E)}catch{B=void 0}return await setEveAttributes({"$eve.model":B,"$eve.input_tokens":z.inputTokens,"$eve.output_tokens":z.outputTokens,"$eve.cache_read_tokens":z.cacheReadTokens,"$eve.cache_write_tokens":z.cacheWriteTokens,"$eve.tool_count":t.tools.size}),handleStepResult({config:t,emit:n,emissionState:v,promptMessages:T,result:R,runStep,session:_})}return runStep}function buildModelCallFailureDetails(e){let{configSummary:t,error:r,errorId:i,modelCallDetails:a,requestSummary:o}=e;return t===null?o===null?{...formatError(r,i),...a}:{errorId:i,message:toErrorMessage(r),name:o.name,...a}:{errorId:i,message:t.message,name:t.name,...a}}function buildModelCallFailureLogFields(e){let t={errorId:e.errorId,sessionId:e.sessionId,turnId:e.turnId};return e.requestSummary===null?{...t,error:e.error}:{...t,details:e.modelCallDetails}}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}}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.finishReason===`other`&&e.toolCalls.length===0&&resolveAssistantStepText(e.response.messages,e.text)===null}function rethrowNoOutputAsEmptyResponse(e){throw isNoOutputGeneratedError(e)?new EmptyModelResponseError({cause:e}):e}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:`Your previous reply was not delivered. Answer now from the tool results above; do not re-run tools or mention this notice.`})}}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=i.response.messages,l=resolveAssistantStepText(c,i.text),u={...s,compaction:createNextCompactionConfig(s.compaction,r,i)};if(isSandboxEnabled(t)){let{getCodeModeInterrupt:e}=await loadCodeModeModule(),a=e(i);if(a!==void 0)return parkOnCodeModeInterrupt({baseSession:u,config:t,emit:n,emissionState:o,interrupt:a,promptMessages:r,responseMessages:c})}let d=extractToolApprovalInputRequests({content:i.content??[]}),f=new Set(d.map(e=>e.action.callId)),p=extractQuestionInputRequests({toolCalls:i.toolCalls,excludedCallIds:f}),m=[...d,...p],g=(i.toolCalls??[]).filter(e=>!isInvalidToolCall(e)).filter(e=>t.tools.get(e.toolName)?.runtimeAction!==void 0).map(e=>createRuntimeActionRequestFromToolCall({toolCall:e,tools:t.tools}));if(g.length>0)return{next:null,session:setHarnessEmissionState(setPendingRuntimeActionBatch({actions:g,event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},responseMessages:c,session:{...u,history:[...r]}}),o)};if(m.length>0){let e=setPendingInputBatch({event:{sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId},requests:m,responseMessages:c,session:{...u,history:[...r]}});return n&&(await n(createInputRequestedEvent({requests:m,sequence:o.sequence,stepIndex:o.stepIndex,turnId:o.turnId})),t.mode===`conversation`&&(o=await emitTurnEpilogue(n,o,t.mode),e=setHarnessEmissionState(e,o))),{next:null,session:e}}let _=findAuthorizationSignalFromToolResults(i.toolResults);if(_){let{challenges:e}=_;if(n)for(let t of e)await n(createAuthorizationRequiredEvent({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}));return{next:null,session:setHarnessEmissionState({...u,history:[...r],state:setPendingAuthorization(u.state,{challenges:e})},o)}}let y=[...r,...c],b={...u,history:y};return!(b.outputSchema!==void 0&&extractFinalOutput(i)!==void 0)&&(c.at(-1)?.role===`tool`||hasDeferredStepInput(b))?(n&&(o=advanceStep(o),b=setHarnessEmissionState(b,o)),{next:a,session:b}):t.mode===`task`?finishTaskTurn({emissionState:o,emit:n,history:r,result:i,schema:b.outputSchema,session:b,stepOutput:l}):finishConversationTurn({emissionState:o,emit:n,history:r,result:i,schema:b.outputSchema,session:b})}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)?.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(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?(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}=e,{emissionState:a,session:o}=e;if(i===void 0)return t&&(a=await emitTurnEpilogue(t,a,`conversation`),o=setHarnessEmissionState(o,a)),{next:null,session:o};let s=extractFinalOutput(r);return s===void 0?(t&&(a=await emitRecoverableFailedTurn(t,a,OUTPUT_SCHEMA_NOT_FULFILLED),o=setHarnessEmissionState(o,a)),{next:null,session:o}):(o=persistStructuredAssistantTurn(o,n,s),t&&(a=await emitStructuredResult(t,a,s,`conversation`),o=setHarnessEmissionState(o,a)),{next:null,session:o})}async function continuePendingCodeModeInterrupt(e){let t=getPendingCodeModeInterrupt(e.session.state);if(t===void 0)return null;let{continueCodeModeApproval:n,continueCodeModeInterrupt:i,getCodeModeApprovalResponse:a,isCodeModeApprovalInterrupt:o,replaceCodeModeInterruptResult:s,unwrapCodeModeResult:c}=await loadCodeModeModule(),l=t.interrupt,u=o(l)?a([...e.messages],l):void 0;if(o(l)&&u===void 0)return{next:null,session:e.session};let d=createEveCodeModeOptions({lifecycle:e.emit===void 0?void 0:createCodeModeLifecycle({emit:e.emit,emissionState:e.emissionState,skipReplayed:!0,tools:e.config.tools})}),f;try{let t=await buildSandboxHostTools({approvedTools:getApprovedTools(e.session),capabilities:e.capabilities,tools:e.config.tools});if(o(l)&&u!==void 0)f=await n({approvalResponse:u,interrupt:l,options:d,tools:t});else if(isCodeModeConnectionAuthInterrupt(l))f=await i({interrupt:l,resolution:{status:`authorized`},tools:t,options:d});else if(isCodeModeRuntimeActionInterrupt(l)){let n=e.childResults??[],r=l,a=0;for(;;){f=await i({interrupt:r,resolution:n[a]?.output,tools:t,options:d});let e=c(f);if(e.status!==`interrupted`||!isCodeModeRuntimeActionInterrupt(e.interrupt)||a+1>=n.length)break;a++,r=e.interrupt}}else throw Error(`Unsupported code-mode interrupt kind "${l.payload.kind}".`)}catch(e){logError(log,`code-mode interrupt continuation failed`,e),f={error:`code_mode_continuation_failed`,message:toErrorMessage(e),retryable:!1}}let m=c(f),h=m.status===`interrupted`?m.interrupt:m.output,g=[...e.session.history,...t.responseMessages],_=isCodeModeRuntimeActionInterrupt(l)?replaceCodeModeToolResult(g,l.outerToolCallId,h):s(g,l,h),v=clearPendingCodeModeInterrupt({...e.session,history:_});if(m.status===`interrupted`){let t=e.session.history.length,n=_.slice(0,t),r=_.slice(t);return v={...v,history:n},parkOnCodeModeInterrupt({baseSession:v,config:e.config,emit:e.emit,emissionState:e.emissionState,interrupt:m.interrupt,promptMessages:n,responseMessages:r})}return{next:e.runStep,session:v}}function replaceCodeModeToolResult(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 parkOnCodeModeInterrupt(e){let{isCodeModeApprovalInterrupt:t,toCodeModeApprovalMessages:n}=await loadCodeModeModule(),r=e.interrupt,i={...e.baseSession,history:[...e.promptMessages]};if(isCodeModeConnectionAuthInterrupt(r)){let t=[...r.payload.challenges??[]];if(e.emit)for(let n of t)await e.emit(createAuthorizationRequiredEvent({authorization:n.challenge,name:n.name,description:n.challenge.instructions??`Authorization required for ${n.name}`,webhookUrl:n.hookUrl,sequence:e.emissionState.sequence,stepIndex:e.emissionState.stepIndex,turnId:e.emissionState.turnId}));return{next:null,session:setPendingCodeModeInterrupt({interrupt:r,responseMessages:e.responseMessages,session:{...i,state:setPendingAuthorization(i.state,{challenges:t})}})}}if(t(r)){let t=n(r),a=extractToolApprovalInputRequests({content:extractAssistantContent(t)}),o=setPendingInputBatch({event:{sequence:e.emissionState.sequence,stepIndex:e.emissionState.stepIndex,turnId:e.emissionState.turnId},requests:a,responseMessages:t,session:setPendingCodeModeInterrupt({interrupt:r,responseMessages:e.responseMessages,session:i})});if(e.emit&&(await e.emit(createInputRequestedEvent({requests:a,sequence:e.emissionState.sequence,stepIndex:e.emissionState.stepIndex,turnId:e.emissionState.turnId})),e.config.mode===`conversation`)){let t=await emitTurnEpilogue(e.emit,e.emissionState,e.config.mode);o=setHarnessEmissionState(o,t)}return{next:null,session:o}}return{next:null,session:setHarnessEmissionState(setPendingCodeModeInterrupt({interrupt:r,responseMessages:e.responseMessages,session:i}),e.emissionState)}}function extractAssistantContent(e){let t=[];for(let n of e)n.role===`assistant`&&Array.isArray(n.content)&&t.push(...n.content);return t}function createNextCompactionConfig(e,t,n){let r={recentWindowSize:e.recentWindowSize,threshold:e.threshold};return n.usage?.inputTokens!==void 0&&(r.lastKnownInputTokens=n.usage.inputTokens,r.lastKnownPromptMessageCount=t.length),r}async function maybeCompact(e){let{emit:t,emissionState:n}=e,r=e.messages,i=e.session;if(!shouldCompact(r,i.compaction))return{messages:r,session:i};let a=await resolveCompactionModel({compactionModelReference:i.agent.compactionModelReference,model:e.model,modelReference:i.agent.modelReference,resolveModel:e.resolveModel});if(t&&await t(createCompactionRequestedEvent({modelId:formatLanguageModelGatewayId(a.model),sequence:n.sequence,sessionId:i.sessionId,turnId:n.turnId,usageInputTokens:getInputTokenCount(r,i.compaction)})),r=await compactMessages(r,a.model,i.compaction,a.providerOptions,e.telemetry,e.headers),e.onCompaction)for(let t of e.onCompaction())r.push(t);return t&&await t(createCompactionCompletedEvent({modelId:formatLanguageModelGatewayId(a.model),sequence:n.sequence,sessionId:i.sessionId,turnId:n.turnId})),{messages:r,session:i}}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){for(let n=1;;n++)try{return await e()}catch(e){if(n===3||classifyModelCallError(e)!==`retry`)throw e;let r=500*2**(n-1)+Math.floor(Math.random()*250);log.warn(`model call failed transiently — retrying`,{attempt:n,delayMs:r,sessionId:t.sessionId,turnId:t.turnId,error:e}),await new Promise(e=>setTimeout(e,r))}}function findAuthorizationSignalFromToolResults(e){let t=contextStorage.getStore();if(t!==void 0)for(let n of e??[]){let e=readToolInterrupt(t,n.toolCallId);if(e!==void 0&&isAuthorizationSignal(e))return e}for(let t of e??[])if(isAuthorizationSignal(t.output))return t.output}export{createToolLoopHarness};