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Safe to call at any point, including after the run completes or inside the AI SDK's ",[592,621,622],{},"onFinish",":",[625,626,632],"pre",{"className":627,"code":628,"filename":629,"language":630,"meta":631,"style":631},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\nimport { generateText } from 'ai'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n  const ai = createAILogger(log, {\n    cost: { 'claude-sonnet-4.6': { input: 3, output: 15 } },\n  })\n\n  await generateText({\n    model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'),\n    prompt: 'Summarize this document',\n  })\n\n  const metadata = ai.getMetadata()\n\n  await db.aiRuns.insert({\n    userId: event.context.userId,\n    model: metadata.model,\n    inputTokens: metadata.inputTokens,\n    outputTokens: metadata.outputTokens,\n    estimatedCost: metadata.estimatedCost,\n    finishReason: metadata.finishReason,\n    responseId: metadata.responseId,\n  })\n\n  return { ok: true }\n})\n","server\u002Fapi\u002Fchat.post.ts","typescript","",[592,633,634,667,688,708,715,751,773,795,841,849,854,867,897,914,921,926,946,951,973,996,1012,1029,1046,1063,1080,1097,1104,1109,1129],{"__ignoreMap":631},[635,636,639,643,647,651,654,657,660,664],"span",{"class":637,"line":638},"line",1,[635,640,642],{"class":641},"s7zQu","import",[635,644,646],{"class":645},"sMK4o"," {",[635,648,650],{"class":649},"sTEyZ"," useLogger",[635,652,653],{"class":645}," }",[635,655,656],{"class":641}," from",[635,658,659],{"class":645}," '",[635,661,663],{"class":662},"sfazB","evlog",[635,665,666],{"class":645},"'\n",[635,668,670,672,674,677,679,681,683,686],{"class":637,"line":669},2,[635,671,642],{"class":641},[635,673,646],{"class":645},[635,675,676],{"class":649}," createAILogger",[635,678,653],{"class":645},[635,680,656],{"class":641},[635,682,659],{"class":645},[635,684,685],{"class":662},"evlog\u002Fai",[635,687,666],{"class":645},[635,689,691,693,695,698,700,702,704,706],{"class":637,"line":690},3,[635,692,642],{"class":641},[635,694,646],{"class":645},[635,696,697],{"class":649}," generateText",[635,699,653],{"class":645},[635,701,656],{"class":641},[635,703,659],{"class":645},[635,705,594],{"class":662},[635,707,666],{"class":645},[635,709,711],{"class":637,"line":710},4,[635,712,714],{"emptyLinePlaceholder":713},true,"\n",[635,716,718,721,724,728,731,735,738,742,745,748],{"class":637,"line":717},5,[635,719,720],{"class":641},"export",[635,722,723],{"class":641}," default",[635,725,727],{"class":726},"s2Zo4"," defineEventHandler",[635,729,730],{"class":649},"(",[635,732,734],{"class":733},"spNyl","async",[635,736,737],{"class":645}," (",[635,739,741],{"class":740},"sHdIc","event",[635,743,744],{"class":645},")",[635,746,747],{"class":733}," =>",[635,749,750],{"class":645}," {\n",[635,752,754,757,760,763,765,768,770],{"class":637,"line":753},6,[635,755,756],{"class":733},"  const",[635,758,759],{"class":649}," log",[635,761,762],{"class":645}," =",[635,764,650],{"class":726},[635,766,730],{"class":767},"swJcz",[635,769,741],{"class":649},[635,771,772],{"class":767},")\n",[635,774,776,778,781,783,785,787,790,793],{"class":637,"line":775},7,[635,777,756],{"class":733},[635,779,780],{"class":649}," ai",[635,782,762],{"class":645},[635,784,676],{"class":726},[635,786,730],{"class":767},[635,788,789],{"class":649},"log",[635,791,792],{"class":645},",",[635,794,750],{"class":645},[635,796,798,801,803,805,807,810,813,815,817,820,822,826,828,831,833,836,838],{"class":637,"line":797},8,[635,799,800],{"class":767},"    cost",[635,802,623],{"class":645},[635,804,646],{"class":645},[635,806,659],{"class":645},[635,808,809],{"class":767},"claude-sonnet-4.6",[635,811,812],{"class":645},"'",[635,814,623],{"class":645},[635,816,646],{"class":645},[635,818,819],{"class":767}," input",[635,821,623],{"class":645},[635,823,825],{"class":824},"sbssI"," 3",[635,827,792],{"class":645},[635,829,830],{"class":767}," output",[635,832,623],{"class":645},[635,834,835],{"class":824}," 15",[635,837,653],{"class":645},[635,839,840],{"class":645}," },\n",[635,842,844,847],{"class":637,"line":843},9,[635,845,846],{"class":645},"  }",[635,848,772],{"class":767},[635,850,852],{"class":637,"line":851},10,[635,853,714],{"emptyLinePlaceholder":713},[635,855,857,860,862,864],{"class":637,"line":856},11,[635,858,859],{"class":641},"  await",[635,861,697],{"class":726},[635,863,730],{"class":767},[635,865,866],{"class":645},"{\n",[635,868,870,873,875,877,880,883,885,887,890,892,894],{"class":637,"line":869},12,[635,871,872],{"class":767},"    model",[635,874,623],{"class":645},[635,876,780],{"class":649},[635,878,879],{"class":645},".",[635,881,882],{"class":726},"wrap",[635,884,730],{"class":767},[635,886,812],{"class":645},[635,888,889],{"class":662},"anthropic\u002Fclaude-sonnet-4.6",[635,891,812],{"class":645},[635,893,744],{"class":767},[635,895,896],{"class":645},",\n",[635,898,900,903,905,907,910,912],{"class":637,"line":899},13,[635,901,902],{"class":767},"    prompt",[635,904,623],{"class":645},[635,906,659],{"class":645},[635,908,909],{"class":662},"Summarize this document",[635,911,812],{"class":645},[635,913,896],{"class":645},[635,915,917,919],{"class":637,"line":916},14,[635,918,846],{"class":645},[635,920,772],{"class":767},[635,922,924],{"class":637,"line":923},15,[635,925,714],{"emptyLinePlaceholder":713},[635,927,929,931,934,936,938,940,943],{"class":637,"line":928},16,[635,930,756],{"class":733},[635,932,933],{"class":649}," metadata",[635,935,762],{"class":645},[635,937,780],{"class":649},[635,939,879],{"class":645},[635,941,942],{"class":726},"getMetadata",[635,944,945],{"class":767},"()\n",[635,947,949],{"class":637,"line":948},17,[635,950,714],{"emptyLinePlaceholder":713},[635,952,954,956,959,961,964,966,969,971],{"class":637,"line":953},18,[635,955,859],{"class":641},[635,957,958],{"class":649}," db",[635,960,879],{"class":645},[635,962,963],{"class":649},"aiRuns",[635,965,879],{"class":645},[635,967,968],{"class":726},"insert",[635,970,730],{"class":767},[635,972,866],{"class":645},[635,974,976,979,981,984,986,989,991,994],{"class":637,"line":975},19,[635,977,978],{"class":767},"    userId",[635,980,623],{"class":645},[635,982,983],{"class":649}," event",[635,985,879],{"class":645},[635,987,988],{"class":649},"context",[635,990,879],{"class":645},[635,992,993],{"class":649},"userId",[635,995,896],{"class":645},[635,997,999,1001,1003,1005,1007,1010],{"class":637,"line":998},20,[635,1000,872],{"class":767},[635,1002,623],{"class":645},[635,1004,933],{"class":649},[635,1006,879],{"class":645},[635,1008,1009],{"class":649},"model",[635,1011,896],{"class":645},[635,1013,1015,1018,1020,1022,1024,1027],{"class":637,"line":1014},21,[635,1016,1017],{"class":767},"    inputTokens",[635,1019,623],{"class":645},[635,1021,933],{"class":649},[635,1023,879],{"class":645},[635,1025,1026],{"class":649},"inputTokens",[635,1028,896],{"class":645},[635,1030,1032,1035,1037,1039,1041,1044],{"class":637,"line":1031},22,[635,1033,1034],{"class":767},"    outputTokens",[635,1036,623],{"class":645},[635,1038,933],{"class":649},[635,1040,879],{"class":645},[635,1042,1043],{"class":649},"outputTokens",[635,1045,896],{"class":645},[635,1047,1049,1052,1054,1056,1058,1061],{"class":637,"line":1048},23,[635,1050,1051],{"class":767},"    estimatedCost",[635,1053,623],{"class":645},[635,1055,933],{"class":649},[635,1057,879],{"class":645},[635,1059,1060],{"class":649},"estimatedCost",[635,1062,896],{"class":645},[635,1064,1066,1069,1071,1073,1075,1078],{"class":637,"line":1065},24,[635,1067,1068],{"class":767},"    finishReason",[635,1070,623],{"class":645},[635,1072,933],{"class":649},[635,1074,879],{"class":645},[635,1076,1077],{"class":649},"finishReason",[635,1079,896],{"class":645},[635,1081,1083,1086,1088,1090,1092,1095],{"class":637,"line":1082},25,[635,1084,1085],{"class":767},"    responseId",[635,1087,623],{"class":645},[635,1089,933],{"class":649},[635,1091,879],{"class":645},[635,1093,1094],{"class":649},"responseId",[635,1096,896],{"class":645},[635,1098,1100,1102],{"class":637,"line":1099},26,[635,1101,846],{"class":645},[635,1103,772],{"class":767},[635,1105,1107],{"class":637,"line":1106},27,[635,1108,714],{"emptyLinePlaceholder":713},[635,1110,1112,1115,1117,1120,1122,1126],{"class":637,"line":1111},28,[635,1113,1114],{"class":641},"  return",[635,1116,646],{"class":645},[635,1118,1119],{"class":767}," ok",[635,1121,623],{"class":645},[635,1123,1125],{"class":1124},"sfNiH"," true",[635,1127,1128],{"class":645}," }\n",[635,1130,1132,1135],{"class":637,"line":1131},29,[635,1133,1134],{"class":645},"}",[635,1136,772],{"class":649},[588,1138,1139],{},"The snapshot is a fresh copy: mutating it never affects the underlying state or subsequent calls.",[603,1141,1143,1146],{"id":1142},"getestimatedcost-quick-cost-check",[592,1144,1145],{},"getEstimatedCost()",": quick cost check",[588,1148,1149,1150,1153,1154,1157,1158,1161],{},"Convenience for ",[592,1151,1152],{},"getMetadata().estimatedCost",". Returns the cost in dollars, or ",[592,1155,1156],{},"undefined"," if no ",[592,1159,1160],{},"cost"," map was provided or the model is not in the map.",[625,1163,1165],{"className":627,"code":1164,"language":630,"meta":631,"style":631},"const ai = createAILogger(log, {\n  cost: { 'claude-sonnet-4.6': { input: 3, output: 15 } },\n})\n\nawait generateText({ model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'), prompt })\n\nconst cost = ai.getEstimatedCost()\nconsole.log(`This call cost $${cost?.toFixed(4)}`)\n",[592,1166,1167,1187,1224,1230,1234,1276,1280,1298],{"__ignoreMap":631},[635,1168,1169,1172,1175,1178,1180,1183,1185],{"class":637,"line":638},[635,1170,1171],{"class":733},"const",[635,1173,1174],{"class":649}," ai ",[635,1176,1177],{"class":645},"=",[635,1179,676],{"class":726},[635,1181,1182],{"class":649},"(log",[635,1184,792],{"class":645},[635,1186,750],{"class":645},[635,1188,1189,1192,1194,1196,1198,1200,1202,1204,1206,1208,1210,1212,1214,1216,1218,1220,1222],{"class":637,"line":669},[635,1190,1191],{"class":767},"  cost",[635,1193,623],{"class":645},[635,1195,646],{"class":645},[635,1197,659],{"class":645},[635,1199,809],{"class":767},[635,1201,812],{"class":645},[635,1203,623],{"class":645},[635,1205,646],{"class":645},[635,1207,819],{"class":767},[635,1209,623],{"class":645},[635,1211,825],{"class":824},[635,1213,792],{"class":645},[635,1215,830],{"class":767},[635,1217,623],{"class":645},[635,1219,835],{"class":824},[635,1221,653],{"class":645},[635,1223,840],{"class":645},[635,1225,1226,1228],{"class":637,"line":690},[635,1227,1134],{"class":645},[635,1229,772],{"class":649},[635,1231,1232],{"class":637,"line":710},[635,1233,714],{"emptyLinePlaceholder":713},[635,1235,1236,1239,1241,1243,1246,1249,1251,1253,1255,1257,1259,1261,1263,1265,1267,1269,1272,1274],{"class":637,"line":717},[635,1237,1238],{"class":641},"await",[635,1240,697],{"class":726},[635,1242,730],{"class":649},[635,1244,1245],{"class":645},"{",[635,1247,1248],{"class":767}," model",[635,1250,623],{"class":645},[635,1252,780],{"class":649},[635,1254,879],{"class":645},[635,1256,882],{"class":726},[635,1258,730],{"class":649},[635,1260,812],{"class":645},[635,1262,889],{"class":662},[635,1264,812],{"class":645},[635,1266,744],{"class":649},[635,1268,792],{"class":645},[635,1270,1271],{"class":649}," prompt ",[635,1273,1134],{"class":645},[635,1275,772],{"class":649},[635,1277,1278],{"class":637,"line":753},[635,1279,714],{"emptyLinePlaceholder":713},[635,1281,1282,1284,1287,1289,1291,1293,1296],{"class":637,"line":775},[635,1283,1171],{"class":733},[635,1285,1286],{"class":649}," cost ",[635,1288,1177],{"class":645},[635,1290,780],{"class":649},[635,1292,879],{"class":645},[635,1294,1295],{"class":726},"getEstimatedCost",[635,1297,945],{"class":649},[635,1299,1300,1303,1305,1307,1309,1312,1315,1318,1320,1323,1326,1328,1331,1333,1336],{"class":637,"line":797},[635,1301,1302],{"class":649},"console",[635,1304,879],{"class":645},[635,1306,789],{"class":726},[635,1308,730],{"class":649},[635,1310,1311],{"class":645},"`",[635,1313,1314],{"class":662},"This call cost $",[635,1316,1317],{"class":645},"${",[635,1319,1160],{"class":649},[635,1321,1322],{"class":645},"?.",[635,1324,1325],{"class":726},"toFixed",[635,1327,730],{"class":649},[635,1329,1330],{"class":824},"4",[635,1332,744],{"class":649},[635,1334,1335],{"class":645},"}`",[635,1337,772],{"class":649},[603,1339,1341,1344],{"id":1340},"onupdatecallback-incremental-updates",[592,1342,1343],{},"onUpdate(callback)",": incremental updates",[588,1346,1347],{},"Subscribe to metadata updates. The callback fires every time the underlying state flushes:",[1349,1350,1351,1355,1362,1365],"ul",{},[1352,1353,1354],"li",{},"Once per step in multi-step agent runs",[1352,1356,1357,1358,1361],{},"Once per ",[592,1359,1360],{},"captureEmbed"," call",[1352,1363,1364],{},"On model errors",[1352,1366,1367,1368,1371,1372,1375,1376,1378],{},"On ",[592,1369,1370],{},"createEvlogIntegration","'s ",[592,1373,1374],{},"onEnd"," (v7) or ",[592,1377,622],{}," (v6)",[588,1380,1381],{},"Each invocation receives a fresh snapshot. Returns an unsubscribe function. Subscriber errors are isolated and never break the AI flow.",[625,1383,1386],{"className":627,"code":1384,"filename":1385,"language":630,"meta":631,"style":631},"import { ToolLoopAgent, createAgentUIStreamResponse, stepCountIs } from 'ai'\nimport { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n  const { messages } = await readBody(event)\n  const ai = createAILogger(log)\n\n  ai.onUpdate((metadata) => {\n    pushToClient(event, {\n      type: 'ai-progress',\n      step: metadata.steps,\n      tokens: metadata.totalTokens,\n      cost: metadata.estimatedCost,\n    })\n  })\n\n  const agent = new ToolLoopAgent({\n    model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'),\n    tools: { searchWeb, queryDatabase },\n    stopWhen: stepCountIs(5),\n  })\n\n  return createAgentUIStreamResponse({ agent, uiMessages: messages })\n})\n","server\u002Fapi\u002Fagent.post.ts",[592,1387,1388,1417,1435,1453,1457,1479,1495,1520,1536,1540,1563,1576,1592,1608,1624,1639,1646,1652,1656,1674,1698,1717,1735,1741,1745,1770],{"__ignoreMap":631},[635,1389,1390,1392,1394,1397,1399,1402,1404,1407,1409,1411,1413,1415],{"class":637,"line":638},[635,1391,642],{"class":641},[635,1393,646],{"class":645},[635,1395,1396],{"class":649}," ToolLoopAgent",[635,1398,792],{"class":645},[635,1400,1401],{"class":649}," createAgentUIStreamResponse",[635,1403,792],{"class":645},[635,1405,1406],{"class":649}," 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