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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{resolveTextToResponses}from"#channel/resolve-text.js";import{appendPendingInputBatch,consumeDeferredStepInput,getPendingInputBatches,getPendingInputRequestIds,hasDeferredStepInput,hasPendingInputBatch,queueDeferredStepInput}from"#harness/pending-input-batches.js";import{resolveToolCallInputObject}from"#harness/coordination.js";import{isApprovalRequest}from"#harness/input-request-class.js";import{compactStepInput}from"#harness/hitl/pending-input-resolution.js";import{resolveQuestionOnlyInputBatches}from"#harness/hitl/question-input-requests.js";import{hasTailApprovalResponse}from"#harness/current-messages.js";import{getApprovedTools,hasAnsweredApprovalBatch,resolveApprovalInputBatches}from"#harness/hitl/approval-input-requests.js";import{clearPendingSessionLimitPrompt,isSessionLimitInputBatch,resolveSessionLimitInput}from"#harness/hitl/session-limit-input-requests.js";function hasStepInput(e){return e===void 0?!1:e.message!==void 0||(e.inputResponses?.length??0)>0}function hasPendingApprovalBatch(e){return getPendingInputBatches(e.state).some(e=>e.requests.some(e=>isApprovalRequest(e)))}function resolvePendingInput(e){let t=[...e.history??e.session.history],n=getPendingInputBatches(e.session.state);if(n.length===0)return{outcome:`continue`,messages:t,session:e.session};let r=routePendingInput(n),i=hasTailApprovalResponse(t),a=r.kind===`session-limit`?r.batch:n.length===1?n[0]:void 0,o=a===void 0?e.stepInput:resolveTextMessageInput(a,e.stepInput),s=canonicalizeInputResponses(o?.inputResponses??[]);if(r.kind===`approval`&&e.deferMessagesWhileApprovalsPending===!0&&o?.message!==void 0&&!hasAnsweredApprovalBatch(r.approvalBatches,s))return{deferredMessage:!0,outcome:`unresolved`,messages:t,session:queueDeferredStepInput(e.session,compactStepInput(o))};if(s.length===0&&o?.message===void 0){let n=compactStepInput(o);return{outcome:`unresolved`,messages:t,session:n.context!==void 0||readClientContext(n)!==void 0||n.outputSchema!==void 0?queueDeferredStepInput(e.session,n):e.session}}let c={baseHistory:t,batches:n,deferTurnInput:i,resolvedStepInput:o,responses:s,session:e.session};switch(r.kind){case`session-limit`:return resolveSessionLimitInput({...c,pendingBatch:r.batch});case`approval`:return resolveApprovalInputBatches({...c,approvalBatches:r.approvalBatches,questionBatches:r.questionBatches,resolveApprovalKey:e.resolveApprovalKey});case`question`:return resolveQuestionOnlyInputBatches(c)}}function routePendingInput(e){let t=e.map(e=>({batch:e,domain:classifyPendingInputBatch(e)})),n=t.find(({domain:e})=>e===`session-limit`)?.batch;if(n!==void 0)return{batch:n,kind:`session-limit`};let r=t.filter(({domain:e})=>e===`approval`).map(({batch:e})=>e);if(r.length>0){let t=new Set(r);return{approvalBatches:r,kind:`approval`,questionBatches:e.filter(e=>!t.has(e))}}return{kind:`question`}}function classifyPendingInputBatch(e){for(let t of e.requests)switch(t.kind){case`question`:case`session-limit`:case`tool-approval`:break;default:{let e=t.kind;throw TypeError(`Unhandled pending input request kind: ${String(e)}`)}}return isSessionLimitInputBatch(e)?`session-limit`:e.requests.some(e=>isApprovalRequest(e))?`approval`:`question`}function canonicalizeInputResponses(e){let t=new Map;for(let n of e)t.set(n.requestId,n);return[...t.values()]}function resolveTextMessageInput(e,t){if(typeof t?.message!=`string`)return t;let n=new Set(e.requests.map(e=>e.requestId));if(t.inputResponses?.some(e=>n.has(e.requestId)))return t;let r=new Set(e.responseAuthRequiredRequestIds??[]),i=e.requests.filter(e=>!r.has(e.requestId)),a=resolveTextToResponses(t.message,i);return a.length===0?t:compactStepInput({...t,inputResponses:[...t.inputResponses??[],...a],messageConsumed:!0,message:void 0})}function createRuntimeToolCallActionFromToolCall(e){return{callId:e.toolCall.toolCallId,input:resolveToolCallInputObject(e.toolCall.input,{callId:e.toolCall.toolCallId,toolName:e.toolCall.toolName}),kind:`tool-call`,toolName:e.toolCall.toolName}}export{appendPendingInputBatch,clearPendingSessionLimitPrompt,consumeDeferredStepInput,createRuntimeToolCallActionFromToolCall,getApprovedTools,getPendingInputRequestIds,hasDeferredStepInput,hasPendingApprovalBatch,hasPendingInputBatch,hasStepInput,resolvePendingInput};