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@earendil-works/pi-coding-agent

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Coding agent CLI with read, bash, edit, write tools and session management

github.com/earendil-works/pi

earendil-works/pi

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import { createRequire as __piCreateRequire } from "node:module"; const require = __piCreateRequire(import.meta.url); import{GoogleGenAI,ResourceScope,convertMessages,convertTools,getDisabledGoogleThinkingConfig,isThinkingPart,mapStopReason,resolveGoogleFunctionCallingMode,resolveGoogleThinkingLevel,retainThoughtSignature,retryGoogleRequest,supportsGoogleStrictToolSampling,toGoogleSdkThinkingLevel,toGoogleThinkingLevel,usesGoogleThinkingLevel}from"./chunk-V7SLUK6A.js";import{buildBaseOptions}from"./chunk-ZGYS4UTC.js";import{sanitizeSurrogates}from"./chunk-L2ZPNLYD.js";import"./chunk-PMRZO46Y.js";import{formatProviderError,normalizeProviderError}from"./chunk-RKNK4Y6L.js";import{providerHeadersToRecord}from"./chunk-UTB4DTYQ.js";import{getProviderEnvValue}from"./chunk-7DDKXS2Q.js";import{calculateCost,clampThinkingLevel,collapseSystemMessages,getCurrentTools,getInitialSystemMessage}from"./chunk-AUUCDC7R.js";import{AssistantMessageEventStream}from"./chunk-LPXNMA2W.js";import{getIdentityHeaders,getSystemMessageText}from"./chunk-BAC3QPNW.js";import"./chunk-JXWJOIH4.js";var API_VERSION="v1",GCP_VERTEX_CREDENTIALS_MARKER="gcp-vertex-credentials",toolCallCounter=0,stream=(model,context,options)=>{let stream2=new AssistantMessageEventStream,normalizedContext=collapseSystemMessages(context);return(async()=>{let output={role:"assistant",content:[],api:"google-vertex",provider:model.provider,model:model.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"pending",timestamp:Date.now()};try{if(options?.fetch&&options.fetch!==globalThis.fetch)throw new Error("Custom fetch is not supported by the Google Vertex adapter");let apiKey=resolveApiKey(options),client=apiKey?createClientWithApiKey(model,apiKey,options?.headers,options?.identity):createClient(model,resolveProject(options),resolveLocation(options),options?.headers,options?.env,options?.identity),params=buildParams(model,normalizedContext,options),nextParams=await options?.onPayload?.(params,model);nextParams!==void 0&&(params=nextParams);let googleStream=await retryGoogleRequest(()=>client.models.generateContentStream(params),options);stream2.push({type:"start",partial:output});let currentBlock=null,blocks=output.content,blockIndex=()=>blocks.length-1;for await(let chunk of googleStream){await options?.onProviderStreamEvent?.(chunk,model),output.responseId||=chunk.responseId;let candidate=chunk.candidates?.[0];if(candidate?.content?.parts)for(let part of candidate.content.parts){if(part.text!==void 0){let isThinking=isThinkingPart(part);(!currentBlock||isThinking&&currentBlock.type!=="thinking"||!isThinking&&currentBlock.type!=="text")&&(currentBlock&&(currentBlock.type==="text"?stream2.push({type:"text_end",contentIndex:blocks.length-1,content:currentBlock.text,partial:output}):stream2.push({type:"thinking_end",contentIndex:blockIndex(),content:currentBlock.thinking,partial:output})),isThinking?(currentBlock={type:"thinking",thinking:"",thinkingSignature:void 0},output.content.push(currentBlock),stream2.push({type:"thinking_start",contentIndex:blockIndex(),partial:output})):(currentBlock={type:"text",text:""},output.content.push(currentBlock),stream2.push({type:"text_start",contentIndex:blockIndex(),partial:output}))),currentBlock.type==="thinking"?(currentBlock.thinking+=part.text,currentBlock.thinkingSignature=retainThoughtSignature(currentBlock.thinkingSignature,part.thoughtSignature),stream2.push({type:"thinking_delta",contentIndex:blockIndex(),delta:part.text,partial:output})):(currentBlock.text+=part.text,currentBlock.textSignature=retainThoughtSignature(currentBlock.textSignature,part.thoughtSignature),stream2.push({type:"text_delta",contentIndex:blockIndex(),delta:part.text,partial:output}))}if(part.functionCall){currentBlock&&(currentBlock.type==="text"?stream2.push({type:"text_end",contentIndex:blockIndex(),content:currentBlock.text,partial:output}):stream2.push({type:"thinking_end",contentIndex:blockIndex(),content:currentBlock.thinking,partial:output}),currentBlock=null);let providedId=part.functionCall.id,toolCall={type:"toolCall",id:!providedId||output.content.some(b=>b.type==="toolCall"&&b.id===providedId)?`${part.functionCall.name}_${Date.now()}_${++toolCallCounter}`:providedId,name:part.functionCall.name||"",arguments:part.functionCall.args??{},...part.thoughtSignature&&{thoughtSignature:part.thoughtSignature}};output.content.push(toolCall),stream2.push({type:"toolcall_start",contentIndex:blockIndex(),partial:output}),stream2.push({type:"toolcall_delta",contentIndex:blockIndex(),delta:JSON.stringify(toolCall.arguments),partial:output}),stream2.push({type:"toolcall_end",contentIndex:blockIndex(),toolCall,partial:output})}}candidate?.finishReason&&(output.rawStopReason=candidate.finishReason,output.stopReason=mapStopReason(candidate.finishReason),output.content.some(b=>b.type==="toolCall")&&output.stopReason==="stop"&&(output.stopReason="toolUse")),chunk.usageMetadata&&(output.usage={input:(chunk.usageMetadata.promptTokenCount||0)-(chunk.usageMetadata.cachedContentTokenCount||0),output:(chunk.usageMetadata.candidatesTokenCount||0)+(chunk.usageMetadata.thoughtsTokenCount||0),cacheRead:chunk.usageMetadata.cachedContentTokenCount||0,cacheWrite:0,reasoning:chunk.usageMetadata.thoughtsTokenCount||0,totalTokens:chunk.usageMetadata.totalTokenCount||0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},calculateCost(model,output.usage))}if(currentBlock&&(currentBlock.type==="text"?stream2.push({type:"text_end",contentIndex:blockIndex(),content:currentBlock.text,partial:output}):stream2.push({type:"thinking_end",contentIndex:blockIndex(),content:currentBlock.thinking,partial:output})),options?.signal?.aborted)throw new Error("Request was aborted");if(output.stopReason==="pending")throw new Error("Google Vertex stream ended without a finish reason");if(output.stopReason==="aborted"||output.stopReason==="error"){let errorMessage=output.rawStopReason?`Provider stopped with: ${output.rawStopReason}`:"An unknown error occurred";throw new Error(errorMessage)}stream2.push({type:"done",reason:output.stopReason,message:output}),stream2.end()}catch(error){output.stopReason=options?.signal?.aborted?"aborted":"error",output.errorMessage=formatProviderError(normalizeProviderError(error)),stream2.push({type:"error",reason:output.stopReason,error:output}),stream2.end()}})(),stream2},streamSimple=(model,context,options)=>{let base={...buildBaseOptions(model,context,options,void 0),toolChoice:options?.toolChoice};if(!options?.reasoning)return stream(model,context,{...base,thinking:{enabled:!1}});let clampedReasoning=clampThinkingLevel(model,options.reasoning);if(clampedReasoning==="off")return stream(model,context,{...base,thinking:{enabled:!1}});let resolvedLevel=resolveGoogleThinkingLevel(model,clampedReasoning);return usesGoogleThinkingLevel(model)?stream(model,context,{...base,thinking:{enabled:!0,level:toGoogleThinkingLevel(resolvedLevel)}}):stream(model,context,{...base,thinking:{enabled:!0,budgetTokens:getGoogleBudget(model,resolvedLevel,options.thinkingBudgets)}})};function createClient(model,project,location,optionsHeaders,env,identity){let googleAuthOptions=buildGoogleAuthOptions(env);return new GoogleGenAI({vertexai:!0,project,location,apiVersion:API_VERSION,...googleAuthOptions?{googleAuthOptions}:{},httpOptions:buildHttpOptions(model,optionsHeaders,identity)})}function createClientWithApiKey(model,apiKey,optionsHeaders,identity){return new GoogleGenAI({vertexai:!0,apiKey,apiVersion:API_VERSION,httpOptions:buildHttpOptions(model,optionsHeaders,identity)})}function buildHttpOptions(model,optionsHeaders,identity){let httpOptions={},baseUrl=resolveCustomBaseUrl(model.baseUrl);baseUrl&&(httpOptions.baseUrl=baseUrl,httpOptions.baseUrlResourceScope=ResourceScope.COLLECTION,baseUrlIncludesApiVersion(baseUrl)&&(httpOptions.apiVersion=""));let headers=providerHeadersToRecord(getIdentityHeaders(model,identity),model.headers,optionsHeaders);return headers&&(httpOptions.headers=headers),Object.keys(httpOptions).length>0?httpOptions:void 0}function resolveCustomBaseUrl(baseUrl){let trimmed=baseUrl.trim();if(!(!trimmed||trimmed.includes("{location}")))return trimmed}function baseUrlIncludesApiVersion(baseUrl){try{return new URL(baseUrl).pathname.split("/").some(part=>/^v\d+(?:beta\d*)?$/.test(part))}catch{return/(?:^|\/)v\d+(?:beta\d*)?(?:\/|$)/.test(baseUrl)}}function buildGoogleAuthOptions(env){let keyFilename=getProviderEnvValue("GOOGLE_APPLICATION_CREDENTIALS",env);return keyFilename?{keyFilename}:void 0}function resolveApiKey(options){let apiKey=options?.apiKey?.trim();if(!(!apiKey||apiKey===GCP_VERTEX_CREDENTIALS_MARKER||isPlaceholderApiKey(apiKey)))return apiKey}function isPlaceholderApiKey(apiKey){return/^<[^>]+>$/.test(apiKey)}function resolveProject(options){let project=options?.project||getProviderEnvValue("GOOGLE_CLOUD_PROJECT",options?.env)||getProviderEnvValue("GCLOUD_PROJECT",options?.env);if(!project)throw new Error("Vertex AI requires a project ID. Set GOOGLE_CLOUD_PROJECT/GCLOUD_PROJECT or pass project in options.");return project}function resolveLocation(options){let location=options?.location||getProviderEnvValue("GOOGLE_CLOUD_LOCATION",options?.env);if(!location)throw new Error("Vertex AI requires a location. Set GOOGLE_CLOUD_LOCATION or pass location in options.");return location}function buildParams(model,context,options={}){let contents=convertMessages(model,context),initialSystemMessage=getInitialSystemMessage(context.messages),currentTools=getCurrentTools(context.messages),generationConfig={};options.temperature!==void 0&&(generationConfig.temperature=options.temperature),options.maxTokens!==void 0&&(generationConfig.maxOutputTokens=options.maxTokens);let supportsStrictMode=supportsGoogleStrictToolSampling(model.id),functionCallingMode=currentTools.length>0?resolveGoogleFunctionCallingMode(currentTools,options.toolChoice,supportsStrictMode):void 0,systemInstruction=initialSystemMessage?getSystemMessageText(initialSystemMessage):"",config={...Object.keys(generationConfig).length>0&&generationConfig,...systemInstruction&&{systemInstruction:sanitizeSurrogates(systemInstruction)},...currentTools.length>0&&{tools:convertTools(currentTools,!1,supportsStrictMode)},...functionCallingMode!==void 0&&{toolConfig:{functionCallingConfig:{mode:functionCallingMode}}}};if(options.thinking?.enabled&&model.reasoning){let thinkingConfig={includeThoughts:!0};options.thinking.level!==void 0?thinkingConfig.thinkingLevel=toGoogleSdkThinkingLevel(options.thinking.level):options.thinking.budgetTokens!==void 0&&(thinkingConfig.thinkingBudget=options.thinking.budgetTokens),config.thinkingConfig=thinkingConfig}else model.reasoning&&options.thinking&&!options.thinking.enabled&&(config.thinkingConfig=getDisabledGoogleThinkingConfig(model));if(options.signal){if(options.signal.aborted)throw new Error("Request aborted");config.abortSignal=options.signal}return{model:model.id,contents,config}}function getGoogleBudget(model,level,customBudgets){return customBudgets?.[level]!==void 0?customBudgets[level]:model.id.includes("2.5-pro")?{minimal:128,low:2048,medium:8192,high:32768}[level]:model.id.includes("2.5-flash")?{minimal:128,low:2048,medium:8192,high:24576}[level]:-1}export{stream,streamSimple};