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shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add ai\n","pnpm","bash","",[544,621,622],{"__ignoreMap":619},[623,624,627,630,634],"span",{"class":625,"line":626},"line",1,[623,628,617],{"class":629},"sBMFI",[623,631,633],{"class":632},"sfazB"," add",[623,635,636],{"class":632}," ai\n",[613,638,641],{"className":615,"code":639,"filename":640,"language":618,"meta":619,"style":619},"bun add ai\n","bun",[544,642,643],{"__ignoreMap":619},[623,644,645,647,649],{"class":625,"line":626},[623,646,640],{"class":629},[623,648,633],{"class":632},[623,650,636],{"class":632},[613,652,655],{"className":615,"code":653,"filename":654,"language":618,"meta":619,"style":619},"yarn add ai\n","yarn",[544,656,657],{"__ignoreMap":619},[623,658,659,661,663],{"class":625,"line":626},[623,660,654],{"class":629},[623,662,633],{"class":632},[623,664,636],{"class":632},[613,666,669],{"className":615,"code":667,"filename":668,"language":618,"meta":619,"style":619},"npm install ai\n","npm",[544,670,671],{"__ignoreMap":619},[623,672,673,675,678],{"class":625,"line":626},[623,674,668],{"class":629},[623,676,677],{"class":632}," install",[623,679,636],{"class":632},[602,681,25],{"id":682},"quick-start",[684,685],"ai-sdk-wide-event",{},[541,687,688],{},"Two lines to add, one param to change:",[610,690,691,821],{},[613,692,697],{"className":693,"code":694,"filename":695,"language":696,"meta":619,"style":619},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","export default defineEventHandler(async (event) => {\n  const result = streamText({\n    model: 'anthropic\u002Fclaude-sonnet-4.6',\n    messages,\n  })\n  return result.toTextStreamResponse()\n})\n","Before","typescript",[544,698,699,737,758,779,787,796,813],{"__ignoreMap":619},[623,700,701,705,708,712,716,720,724,728,731,734],{"class":625,"line":626},[623,702,704],{"class":703},"s7zQu","export",[623,706,707],{"class":703}," default",[623,709,711],{"class":710},"s2Zo4"," defineEventHandler",[623,713,715],{"class":714},"sTEyZ","(",[623,717,719],{"class":718},"spNyl","async",[623,721,723],{"class":722},"sMK4o"," (",[623,725,727],{"class":726},"sHdIc","event",[623,729,730],{"class":722},")",[623,732,733],{"class":718}," =>",[623,735,736],{"class":722}," {\n",[623,738,740,743,746,749,752,755],{"class":625,"line":739},2,[623,741,742],{"class":718},"  const",[623,744,745],{"class":714}," result",[623,747,748],{"class":722}," =",[623,750,751],{"class":710}," streamText",[623,753,715],{"class":754},"swJcz",[623,756,757],{"class":722},"{\n",[623,759,761,764,767,770,773,776],{"class":625,"line":760},3,[623,762,763],{"class":754},"    model",[623,765,766],{"class":722},":",[623,768,769],{"class":722}," '",[623,771,772],{"class":632},"anthropic\u002Fclaude-sonnet-4.6",[623,774,775],{"class":722},"'",[623,777,778],{"class":722},",\n",[623,780,782,785],{"class":625,"line":781},4,[623,783,784],{"class":714},"    messages",[623,786,778],{"class":722},[623,788,790,793],{"class":625,"line":789},5,[623,791,792],{"class":722},"  }",[623,794,795],{"class":754},")\n",[623,797,799,802,804,807,810],{"class":625,"line":798},6,[623,800,801],{"class":703},"  return",[623,803,745],{"class":714},[623,805,806],{"class":722},".",[623,808,809],{"class":710},"toTextStreamResponse",[623,811,812],{"class":754},"()\n",[623,814,816,819],{"class":625,"line":815},7,[623,817,818],{"class":722},"}",[623,820,795],{"class":714},[613,822,825],{"className":693,"code":823,"filename":824,"language":696,"meta":619,"style":619},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n  const ai = createAILogger(log)\n\n  const result = streamText({\n    model: ai.wrap('anthropic\u002Fclaude-sonnet-4.6'),\n    messages,\n  })\n  return result.toTextStreamResponse()\n})\n","After",[544,826,827,852,871,877,899,916,934,938,953,979,986,993,1006],{"__ignoreMap":619},[623,828,829,832,835,838,841,844,846,849],{"class":625,"line":626},[623,830,831],{"class":703},"import",[623,833,834],{"class":722}," {",[623,836,837],{"class":714}," useLogger",[623,839,840],{"class":722}," }",[623,842,843],{"class":703}," from",[623,845,769],{"class":722},[623,847,848],{"class":632},"evlog",[623,850,851],{"class":722},"'\n",[623,853,854,856,858,861,863,865,867,869],{"class":625,"line":739},[623,855,831],{"class":703},[623,857,834],{"class":722},[623,859,860],{"class":714}," createAILogger",[623,862,840],{"class":722},[623,864,843],{"class":703},[623,866,769],{"class":722},[623,868,546],{"class":632},[623,870,851],{"class":722},[623,872,873],{"class":625,"line":760},[623,874,876],{"emptyLinePlaceholder":875},true,"\n",[623,878,879,881,883,885,887,889,891,893,895,897],{"class":625,"line":781},[623,880,704],{"class":703},[623,882,707],{"class":703},[623,884,711],{"class":710},[623,886,715],{"class":714},[623,888,719],{"class":718},[623,890,723],{"class":722},[623,892,727],{"class":726},[623,894,730],{"class":722},[623,896,733],{"class":718},[623,898,736],{"class":722},[623,900,901,903,906,908,910,912,914],{"class":625,"line":789},[623,902,742],{"class":718},[623,904,905],{"class":714}," log",[623,907,748],{"class":722},[623,909,837],{"class":710},[623,911,715],{"class":754},[623,913,727],{"class":714},[623,915,795],{"class":754},[623,917,918,920,923,925,927,929,932],{"class":625,"line":798},[623,919,742],{"class":718},[623,921,922],{"class":714}," ai",[623,924,748],{"class":722},[623,926,860],{"class":710},[623,928,715],{"class":754},[623,930,931],{"class":714},"log",[623,933,795],{"class":754},[623,935,936],{"class":625,"line":815},[623,937,876],{"emptyLinePlaceholder":875},[623,939,941,943,945,947,949,951],{"class":625,"line":940},8,[623,942,742],{"class":718},[623,944,745],{"class":714},[623,946,748],{"class":722},[623,948,751],{"class":710},[623,950,715],{"class":754},[623,952,757],{"class":722},[623,954,956,958,960,962,964,967,969,971,973,975,977],{"class":625,"line":955},9,[623,957,763],{"class":754},[623,959,766],{"class":722},[623,961,922],{"class":714},[623,963,806],{"class":722},[623,965,966],{"class":710},"wrap",[623,968,715],{"class":754},[623,970,775],{"class":722},[623,972,772],{"class":632},[623,974,775],{"class":722},[623,976,730],{"class":754},[623,978,778],{"class":722},[623,980,982,984],{"class":625,"line":981},10,[623,983,784],{"class":714},[623,985,778],{"class":722},[623,987,989,991],{"class":625,"line":988},11,[623,990,792],{"class":722},[623,992,795],{"class":754},[623,994,996,998,1000,1002,1004],{"class":625,"line":995},12,[623,997,801],{"class":703},[623,999,745],{"class":714},[623,1001,806],{"class":722},[623,1003,809],{"class":710},[623,1005,812],{"class":754},[623,1007,1009,1011],{"class":625,"line":1008},13,[623,1010,818],{"class":722},[623,1012,795],{"class":714},[541,1014,1015],{},"Your wide event now includes:",[613,1017,1022],{"className":1018,"code":1019,"filename":1020,"language":1021,"meta":619,"style":619},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"method\": \"POST\",\n  \"path\": \"\u002Fapi\u002Fchat\",\n  \"status\": 200,\n  \"duration\": \"4.5s\",\n  \"durationMs\": 4512,\n  \"ai\": {\n    \"calls\": 1,\n    \"model\": \"claude-sonnet-4.6\",\n    \"provider\": \"anthropic\",\n    \"inputTokens\": 3312,\n    \"outputTokens\": 814,\n    \"totalTokens\": 4126,\n    \"reasoningTokens\": 225,\n    \"finishReason\": \"stop\",\n    \"msToFirstChunk\": 234,\n    \"msToFinish\": 4500,\n    \"tokensPerSecond\": 180\n  }\n}\n","Wide Event","json",[544,1023,1024,1028,1051,1071,1088,1108,1124,1137,1154,1174,1194,1210,1226,1242,1259,1280,1297,1314,1329,1335],{"__ignoreMap":619},[623,1025,1026],{"class":625,"line":626},[623,1027,757],{"class":722},[623,1029,1030,1033,1036,1039,1041,1044,1047,1049],{"class":625,"line":739},[623,1031,1032],{"class":722},"  \"",[623,1034,1035],{"class":718},"method",[623,1037,1038],{"class":722},"\"",[623,1040,766],{"class":722},[623,1042,1043],{"class":722}," \"",[623,1045,1046],{"class":632},"POST",[623,1048,1038],{"class":722},[623,1050,778],{"class":722},[623,1052,1053,1055,1058,1060,1062,1064,1067,1069],{"class":625,"line":760},[623,1054,1032],{"class":722},[623,1056,1057],{"class":718},"path",[623,1059,1038],{"class":722},[623,1061,766],{"class":722},[623,1063,1043],{"class":722},[623,1065,1066],{"class":632},"\u002Fapi\u002Fchat",[623,1068,1038],{"class":722},[623,1070,778],{"class":722},[623,1072,1073,1075,1078,1080,1082,1086],{"class":625,"line":781},[623,1074,1032],{"class":722},[623,1076,1077],{"class":718},"status",[623,1079,1038],{"class":722},[623,1081,766],{"class":722},[623,1083,1085],{"class":1084},"sbssI"," 200",[623,1087,778],{"class":722},[623,1089,1090,1092,1095,1097,1099,1101,1104,1106],{"class":625,"line":789},[623,1091,1032],{"class":722},[623,1093,1094],{"class":718},"duration",[623,1096,1038],{"class":722},[623,1098,766],{"class":722},[623,1100,1043],{"class":722},[623,1102,1103],{"class":632},"4.5s",[623,1105,1038],{"class":722},[623,1107,778],{"class":722},[623,1109,1110,1112,1115,1117,1119,1122],{"class":625,"line":798},[623,1111,1032],{"class":722},[623,1113,1114],{"class":718},"durationMs",[623,1116,1038],{"class":722},[623,1118,766],{"class":722},[623,1120,1121],{"class":1084}," 4512",[623,1123,778],{"class":722},[623,1125,1126,1128,1131,1133,1135],{"class":625,"line":815},[623,1127,1032],{"class":722},[623,1129,1130],{"class":718},"ai",[623,1132,1038],{"class":722},[623,1134,766],{"class":722},[623,1136,736],{"class":722},[623,1138,1139,1142,1145,1147,1149,1152],{"class":625,"line":940},[623,1140,1141],{"class":722},"    \"",[623,1143,1144],{"class":629},"calls",[623,1146,1038],{"class":722},[623,1148,766],{"class":722},[623,1150,1151],{"class":1084}," 1",[623,1153,778],{"class":722},[623,1155,1156,1158,1161,1163,1165,1167,1170,1172],{"class":625,"line":955},[623,1157,1141],{"class":722},[623,1159,1160],{"class":629},"model",[623,1162,1038],{"class":722},[623,1164,766],{"class":722},[623,1166,1043],{"class":722},[623,1168,1169],{"class":632},"claude-sonnet-4.6",[623,1171,1038],{"class":722},[623,1173,778],{"class":722},[623,1175,1176,1178,1181,1183,1185,1187,1190,1192],{"class":625,"line":981},[623,1177,1141],{"class":722},[623,1179,1180],{"class":629},"provider",[623,1182,1038],{"class":722},[623,1184,766],{"class":722},[623,1186,1043],{"class":722},[623,1188,1189],{"class":632},"anthropic",[623,1191,1038],{"class":722},[623,1193,778],{"class":722},[623,1195,1196,1198,1201,1203,1205,1208],{"class":625,"line":988},[623,1197,1141],{"class":722},[623,1199,1200],{"class":629},"inputTokens",[623,1202,1038],{"class":722},[623,1204,766],{"class":722},[623,1206,1207],{"class":1084}," 3312",[623,1209,778],{"class":722},[623,1211,1212,1214,1217,1219,1221,1224],{"class":625,"line":995},[623,1213,1141],{"class":722},[623,1215,1216],{"class":629},"outputTokens",[623,1218,1038],{"class":722},[623,1220,766],{"class":722},[623,1222,1223],{"class":1084}," 814",[623,1225,778],{"class":722},[623,1227,1228,1230,1233,1235,1237,1240],{"class":625,"line":1008},[623,1229,1141],{"class":722},[623,1231,1232],{"class":629},"totalTokens",[623,1234,1038],{"class":722},[623,1236,766],{"class":722},[623,1238,1239],{"class":1084}," 4126",[623,1241,778],{"class":722},[623,1243,1245,1247,1250,1252,1254,1257],{"class":625,"line":1244},14,[623,1246,1141],{"class":722},[623,1248,1249],{"class":629},"reasoningTokens",[623,1251,1038],{"class":722},[623,1253,766],{"class":722},[623,1255,1256],{"class":1084}," 225",[623,1258,778],{"class":722},[623,1260,1262,1264,1267,1269,1271,1273,1276,1278],{"class":625,"line":1261},15,[623,1263,1141],{"class":722},[623,1265,1266],{"class":629},"finishReason",[623,1268,1038],{"class":722},[623,1270,766],{"class":722},[623,1272,1043],{"class":722},[623,1274,1275],{"class":632},"stop",[623,1277,1038],{"class":722},[623,1279,778],{"class":722},[623,1281,1283,1285,1288,1290,1292,1295],{"class":625,"line":1282},16,[623,1284,1141],{"class":722},[623,1286,1287],{"class":629},"msToFirstChunk",[623,1289,1038],{"class":722},[623,1291,766],{"class":722},[623,1293,1294],{"class":1084}," 234",[623,1296,778],{"class":722},[623,1298,1300,1302,1305,1307,1309,1312],{"class":625,"line":1299},17,[623,1301,1141],{"class":722},[623,1303,1304],{"class":629},"msToFinish",[623,1306,1038],{"class":722},[623,1308,766],{"class":722},[623,1310,1311],{"class":1084}," 4500",[623,1313,778],{"class":722},[623,1315,1317,1319,1322,1324,1326],{"class":625,"line":1316},18,[623,1318,1141],{"class":722},[623,1320,1321],{"class":629},"tokensPerSecond",[623,1323,1038],{"class":722},[623,1325,766],{"class":722},[623,1327,1328],{"class":1084}," 180\n",[623,1330,1332],{"class":625,"line":1331},19,[623,1333,1334],{"class":722},"  }\n",[623,1336,1338],{"class":625,"line":1337},20,[623,1339,1340],{"class":722},"}\n",[602,1342,1344],{"id":1343},"how-it-works","How It Works",[541,1346,1347,1350,1351,1354],{},[544,1348,1349],{},"createAILogger(log, options?)"," returns an ",[544,1352,1353],{},"AILogger"," with the following methods:",[1356,1357,1358,1371],"table",{},[1359,1360,1361],"thead",{},[1362,1363,1364,1368],"tr",{},[1365,1366,1367],"th",{},"Method",[1365,1369,1370],{},"Description",[1372,1373,1374,1408,1426,1439,1453],"tbody",{},[1362,1375,1376,1382],{},[1377,1378,1379],"td",{},[544,1380,1381],{},"wrap(model)",[1377,1383,1384,1385,1388,1389,1392,1393,1396,1397,1400,1401,1404,1405,806],{},"Wraps a language model with middleware. Accepts a model string (e.g. ",[544,1386,1387],{},"'anthropic\u002Fclaude-sonnet-4.6'",") or a ",[544,1390,1391],{},"LanguageModelV3"," \u002F ",[544,1394,1395],{},"LanguageModelV4"," object. Works with ",[544,1398,1399],{},"generateText",", ",[544,1402,1403],{},"streamText",", and ",[544,1406,1407],{},"ToolLoopAgent",[1362,1409,1410,1415],{},[1377,1411,1412],{},[544,1413,1414],{},"captureEmbed(result)",[1377,1416,1417,1418,1421,1422,1425],{},"Manually captures token usage, model info, and dimensions from ",[544,1419,1420],{},"embed()"," or ",[544,1423,1424],{},"embedMany()"," results.",[1362,1427,1428,1433],{},[1377,1429,1430],{},[544,1431,1432],{},"getMetadata()",[1377,1434,1435,1436,806],{},"Returns a snapshot of the current execution metadata. See ",[591,1437,1438],{"href":342},"Access Metadata",[1362,1440,1441,1446],{},[1377,1442,1443],{},[544,1444,1445],{},"getEstimatedCost()",[1377,1447,1448,1449,1452],{},"Returns the current estimated cost in dollars when a ",[544,1450,1451],{},"cost"," map is configured.",[1362,1454,1455,1460],{},[1377,1456,1457],{},[544,1458,1459],{},"onUpdate(callback)",[1377,1461,1462],{},"Subscribe to metadata updates. Fires on every step, embed, error, and integration finish.",[541,1464,1465],{},"The middleware intercepts calls at the provider level. It does not touch your callbacks, prompts, or responses. Captured data flows through the normal evlog pipeline (sampling, enrichers, drains) and lands in Axiom, Better Stack, or wherever you drain to.",[602,1467,1469],{"id":1468},"where-to-next","Where to next",[1471,1472,1473,1482,1485,1491],"card-group",{},[1474,1475,1477,1400,1479,1481],"card",{"icon":334,"title":1476,"to":332},"Usage Patterns",[544,1478,1403],{},[544,1480,1399],{},", multi-step agents, RAG, multiple models — every common pattern, ready to copy.",[1474,1483,1484],{"icon":339,"title":336,"to":337},"Capture tool inputs (with redaction and truncation), enable cost estimation, and handle errors.",[1474,1486,1487,1488,1490],{"icon":344,"title":1438,"to":342},"Read the captured ",[544,1489,1130],{}," data inside your handler — persist it, bill against it, or stream it to the client.",[1474,1492,1494,1495,1498],{"icon":349,"title":1493,"to":347},"Deeper Telemetry","Add tool execution timing and total wall time with ",[544,1496,1497],{},"createEvlogIntegration",". Compose with other middlewares.",[602,1500,1502],{"id":1501},"works-with-all-frameworks","Works With All Frameworks",[541,1504,1505,1507],{},[544,1506,546],{}," works with any framework that evlog supports:",[610,1509,1510,1585,1702,1795,1891,1980,2050],{},[613,1511,1513],{"className":693,"code":1512,"filename":230,"language":696,"meta":619,"style":619},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nconst log = useLogger(event)\nconst ai = createAILogger(log)\n",[544,1514,1515,1533,1551,1555,1571],{"__ignoreMap":619},[623,1516,1517,1519,1521,1523,1525,1527,1529,1531],{"class":625,"line":626},[623,1518,831],{"class":703},[623,1520,834],{"class":722},[623,1522,837],{"class":714},[623,1524,840],{"class":722},[623,1526,843],{"class":703},[623,1528,769],{"class":722},[623,1530,848],{"class":632},[623,1532,851],{"class":722},[623,1534,1535,1537,1539,1541,1543,1545,1547,1549],{"class":625,"line":739},[623,1536,831],{"class":703},[623,1538,834],{"class":722},[623,1540,860],{"class":714},[623,1542,840],{"class":722},[623,1544,843],{"class":703},[623,1546,769],{"class":722},[623,1548,546],{"class":632},[623,1550,851],{"class":722},[623,1552,1553],{"class":625,"line":760},[623,1554,876],{"emptyLinePlaceholder":875},[623,1556,1557,1560,1563,1566,1568],{"class":625,"line":781},[623,1558,1559],{"class":718},"const",[623,1561,1562],{"class":714}," log ",[623,1564,1565],{"class":722},"=",[623,1567,837],{"class":710},[623,1569,1570],{"class":714},"(event)\n",[623,1572,1573,1575,1578,1580,1582],{"class":625,"line":789},[623,1574,1559],{"class":718},[623,1576,1577],{"class":714}," ai ",[623,1579,1565],{"class":722},[623,1581,860],{"class":710},[623,1583,1584],{"class":714},"(log)\n",[613,1586,1588],{"className":693,"code":1587,"filename":235,"language":696,"meta":619,"style":619},"import { withEvlog, useLogger } from '@\u002Flib\u002Fevlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nexport const POST = withEvlog(async () => {\n  const log = useLogger()\n  const ai = createAILogger(log)\n  \u002F\u002F ...\n})\n",[544,1589,1590,1615,1633,1637,1662,1674,1690,1696],{"__ignoreMap":619},[623,1591,1592,1594,1596,1599,1602,1604,1606,1608,1610,1613],{"class":625,"line":626},[623,1593,831],{"class":703},[623,1595,834],{"class":722},[623,1597,1598],{"class":714}," 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()",[623,1659,733],{"class":718},[623,1661,736],{"class":722},[623,1663,1664,1666,1668,1670,1672],{"class":625,"line":789},[623,1665,742],{"class":718},[623,1667,905],{"class":714},[623,1669,748],{"class":722},[623,1671,837],{"class":710},[623,1673,812],{"class":754},[623,1675,1676,1678,1680,1682,1684,1686,1688],{"class":625,"line":798},[623,1677,742],{"class":718},[623,1679,922],{"class":714},[623,1681,748],{"class":722},[623,1683,860],{"class":710},[623,1685,715],{"class":754},[623,1687,931],{"class":714},[623,1689,795],{"class":754},[623,1691,1692],{"class":625,"line":815},[623,1693,1695],{"class":1694},"sHwdD","  \u002F\u002F ...\n",[623,1697,1698,1700],{"class":625,"line":940},[623,1699,818],{"class":722},[623,1701,795],{"class":714},[613,1703,1705],{"className":693,"code":1704,"filename":260,"language":696,"meta":619,"style":619},"import { createAILogger } from 'evlog\u002Fai'\n\napp.post('\u002Fapi\u002Fchat', (req, res) => {\n  const ai = createAILogger(req.log)\n  \u002F\u002F ...\n})\n",[544,1706,1707,1725,1729,1765,1785,1789],{"__ignoreMap":619},[623,1708,1709,1711,1713,1715,1717,1719,1721,1723],{"class":625,"line":626},[623,1710,831],{"class":703},[623,1712,834],{"class":722},[623,1714,860],{"class":714},[623,1716,840],{"class":722},[623,1718,843],{"class":703},[623,1720,769],{"class":722},[623,1722,546],{"class":632},[623,1724,851],{"class":722},[623,1726,1727],{"class":625,"line":739},[623,1728,876],{"emptyLinePlaceholder":875},[623,1730,1731,1734,1736,1739,1741,1743,1745,1747,1749,1751,1754,1756,1759,1761,1763],{"class":625,"line":760},[623,1732,1733],{"class":714},"app",[623,1735,806],{"class":722},[623,1737,1738],{"class":710},"post",[623,1740,715],{"class":714},[623,1742,775],{"class":722},[623,1744,1066],{"class":632},[623,1746,775],{"class":722},[623,1748,1601],{"class":722},[623,1750,723],{"class":722},[623,1752,1753],{"class":726},"req",[623,1755,1601],{"class":722},[623,1757,1758],{"class":726}," 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