eve/dist/src/harness/model-call-error.js

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

import{isObject}from"#shared/guards.js";import{toError,walkCauseChain}from"#shared/errors.js";import{summarizeKnownError}from"#harness/semantic-errors/index.js";import{isTurnCancellation}from"#harness/turn-cancellation.js";const UNSUPPORTED_TOOL_TYPE_REGEX=/tool type ['"]([\w.-]+)['"] is not supported/i;function extractUpstreamRejectionMessage(e){let t=readModelCallErrorSignals(e);if(isTransientHttpStatus(t.statusCode??t.upstreamStatusCode))return null;let n=t.apiErrorMessage;if(n!==void 0)return{name:upstreamRejectionName(t),message:n};if(t.statusCode===400&&isGatewayErrorSignal(t))return{name:`AI Gateway model request rejected`,message:`AI Gateway rejected the model request before the agent produced a response.`};let r=formatApiCallErrorFallback(t);return r===void 0?null:{name:upstreamRejectionName(t),message:r}}function upstreamRejectionName(e){return isGatewayErrorSignal(e)?`AI Gateway model request rejected`:`Model provider API error`}function isTransientHttpStatus(e){return e===408||e===429||e!==void 0&&e>=500}function extractUnsupportedProviderToolTypes(e){let t=new Set;for(let r of walkCauseChain(e)){collectUnsupportedToolTypesFromValue(readObjectField(r,`data`),t);let e=readStringField(r,`responseBody`);if(e!==void 0)try{collectUnsupportedToolTypesFromValue(JSON.parse(e),t)}catch{let n=UNSUPPORTED_TOOL_TYPE_REGEX.exec(e);n?.[1]!==void 0&&t.add(n[1])}}return[...t]}function collectUnsupportedToolTypesFromValue(t,n){if(t!=null){if(typeof t==`string`){let e=UNSUPPORTED_TOOL_TYPE_REGEX.exec(t);e?.[1]!==void 0&&n.add(e[1]);return}if(Array.isArray(t)){for(let e of t)collectUnsupportedToolTypesFromValue(e,n);return}if(isObject(t))for(let e of Object.values(t))collectUnsupportedToolTypesFromValue(e,n)}}function extractModelCallErrorDetails(e){let t=readModelCallErrorSignals(e),n={};return appendJsonField(n,`apiErrorMessage`,t.apiErrorMessage),appendJsonField(n,`gatewayName`,t.gatewayName),appendJsonField(n,`gatewayType`,t.gatewayType),appendJsonField(n,`statusCode`,t.statusCode),appendJsonField(n,`generationId`,t.generationId),appendJsonField(n,`upstreamStatusCode`,t.upstreamStatusCode),appendJsonField(n,`upstreamType`,t.upstreamType),appendJsonField(n,`upstreamMessage`,t.upstreamMessage),appendJsonField(n,`responseBodySnippet`,t.responseBodySnippet),n}function readErrorName(t){if(t instanceof Error||isObject(t)&&typeof t.name==`string`)return t.name}function readErrorMessage(t){return t instanceof Error||isObject(t)&&typeof t.message==`string`?t.message:``}var EmptyModelResponseError=class extends Error{constructor(e){super(`The model did not return a response. Please try again.`,e),this.name=`EmptyModelResponseError`}};function normalizeModelStreamError(e){let n=toError(e);return n===e||Object.defineProperty(n,"cause",{configurable:!0,value:e}),n}function isNoOutputGeneratedError(e){for(let t of walkCauseChain(e))if(readErrorName(t)===`AI_NoOutputGeneratedError`)return!0;return!1}function classifyModelCallError(e){if(isTurnCancellation(e))return`terminal`;if(e instanceof EmptyModelResponseError)return`recoverable`;if(hasRetryableFlag(e))return`retry`;let t=summarizeKnownError(e);if(t?.tags.includes(`config`)===!0)return`terminal`;if(t?.tags.includes(`transient`)===!0)return`retry`;let n=readModelCallErrorSignals(e);if(isRetryableGatewayType(n.upstreamType))return`retry`;if(isTerminalGatewayType(n.upstreamType)||n.gatewayType===`invalid_request_error`||n.gatewayName===`GatewayInvalidRequestError`)return`terminal`;let a=n.statusCode;if(a!==void 0){if(a===408||a===409||a===429||a>=500)return`retry`;if(isAmbiguousGatewayInternalBadRequest(n))return`recoverable`;if(a>=400&&a<500)return`terminal`}return`recoverable`}function hasRetryableFlag(t){for(let r of walkCauseChain(t))if(isObject(r)&&r.isRetryable===!0)return!0;return!1}function readModelCallErrorSignals(e){let t=findGatewayError(e),n=findUpstreamApiCallError(e),r=readStringField(n,`responseBody`),i=readGatewayErrorBody(n);return{apiCallError:n!==void 0,apiErrorMessage:i?.apiErrorMessage??firstInformativeApiMessage([readErrorMessage(n)]),gatewayName:readErrorName(t),gatewayType:readStringField(t,`type`),generationId:readStringField(t,`generationId`)??i?.generationId,responseBodySnippet:r===void 0?void 0:truncateSnippet(r,1e3),statusCode:readStatusCode(t)??readStatusCode(n)??findStatusCode(e),upstreamMessage:i?.message,upstreamStatusCode:readStatusCode(n),upstreamType:i?.type}}function findGatewayError(e){for(let t of walkCauseChain(e)){let e=readErrorName(t),n=readStringField(t,`type`);if(e?.startsWith(`Gateway`)||n?.endsWith(`_error`)||n===`rate_limit_exceeded`)return t}}function findUpstreamApiCallError(e){for(let t of walkCauseChain(e))if(readErrorName(t)===`AI_APICallError`||readStringField(t,`responseBody`)!==void 0||readObjectField(t,`data`)!==void 0||readObjectField(t,`requestBodyValues`)!==void 0)return t}function readGatewayErrorBody(e){let t=readGatewayErrorBodyFromValue(readObjectField(e,`data`));if(t!==void 0)return t;let n=readStringField(e,`responseBody`);if(n!==void 0)try{return readGatewayErrorBodyFromValue(JSON.parse(n))}catch{return}}function readGatewayErrorBodyFromValue(t){if(!isObject(t))return;let n=readObjectField(t,`error`),r=readStringField(t,`generationId`),i=readStringField(n,`message`)??readStringField(t,`message`),a=readStringField(n,`type`)??readStringField(t,`type`),o=firstInformativeApiMessage([i,...readNestedApiErrorMessages(n),...readNestedApiErrorMessages(t)]);return i===void 0&&a===void 0&&r===void 0&&o===void 0?void 0:{apiErrorMessage:o,generationId:r,message:i,type:a}}function readStatusCode(t){if(isObject(t))return typeof t.statusCode==`number`?t.statusCode:void 0}function findStatusCode(e){for(let t of walkCauseChain(e)){let e=readStatusCode(t);if(e!==void 0)return e}}function readStringField(t,n){if(!isObject(t))return;let r=t[n];return typeof r==`string`&&r.length>0?r:void 0}function readObjectField(t,n){if(!isObject(t))return;let r=t[n];return isObject(r)?r:void 0}function readNestedApiErrorMessages(t){if(!isObject(t))return[];let n=[];return appendString(n,readStringField(t,`message`)),appendString(n,readStringField(t,`error_description`)),appendNestedApiFieldMessages(n,t.error),appendNestedApiFieldMessages(n,t.code),n}function appendNestedApiFieldMessages(t,n){if(typeof n==`string`){appendString(t,n);return}isObject(n)&&(appendString(t,readStringField(n,`message`)),appendString(t,readStringField(n,`error`)),appendString(t,readStringField(n,`description`)),appendString(t,readStringField(n,`error_description`)),appendNestedApiFieldMessages(t,n.error))}function appendString(e,t){t!==void 0&&e.push(t)}function firstInformativeApiMessage(e){for(let t of e)if(t!==void 0&&isInformativeApiMessage(t))return truncateSnippet(t,800)}function isInformativeApiMessage(e){let t=e.trim();return t.length>0&&t!==`[object Object]`&&t!==`AI_APICallError`&&t!==`Bad Request`&&t!==`Internal Server Error`}function formatApiCallErrorFallback(e){if(!e.apiCallError)return;let t=e.statusCode??e.upstreamStatusCode,n=e.responseBodySnippet,r=e.upstreamType!==void 0&&isInformativeApiMessage(e.upstreamType)?e.upstreamType:void 0;if(t===void 0&&n===void 0&&r===void 0)return;let i=[t===void 0?void 0:`HTTP ${t}`,r].filter(e=>e!==void 0).join(`, `),a=i.length===0?`Model provider API request failed`:`Model provider API request failed (${i})`;return n===void 0?`${a}.`:`${a}: ${n}`}function isRetryableGatewayType(e){return e===`overloaded_error`||e===`rate_limit_exceeded`||e===`timeout_error`}function isTerminalGatewayType(e){return e===`authentication_error`||e===`invalid_request_error`||e===`model_not_found`}function isGatewayErrorSignal(e){return e.gatewayName!==void 0||e.gatewayType!==void 0}function isAmbiguousGatewayInternalBadRequest(e){return e.statusCode===400&&(e.gatewayName===`GatewayInternalServerError`||e.gatewayType===`internal_server_error`)&&(e.upstreamType===void 0||e.upstreamType===`internal_server_error`)}function appendJsonField(e,t,n){if(typeof n==`string`&&n.length>0){e[t]=n;return}typeof n==`number`&&Number.isFinite(n)&&(e[t]=n)}function truncateSnippet(e,t){return e.length<=t?e:`${e.slice(0,t)}...<truncated>`}export{EmptyModelResponseError,classifyModelCallError,extractModelCallErrorDetails,extractUnsupportedProviderToolTypes,extractUpstreamRejectionMessage,isNoOutputGeneratedError,normalizeModelStreamError};