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createEvlogIntegration(ai) to experimental_telemetry.integrations",[447,466,467],{},"For embedding calls, use ai.captureEmbed({ usage, model, dimensions, count }) after embed() or embedMany()",[447,469,470],{},"For cost estimation, pass a cost map: createAILogger(log, { cost: { 'claude-sonnet-4.6': { input: 3, output: 15 } } })",[447,472,473],{},"Works with all frameworks: Nuxt, Express, Hono, Fastify, NestJS, Elysia, standalone",[428,475,476,477,483,484],{},"Docs: ",[478,479,480],"a",{"href":480,"rel":481},"https:\u002F\u002Fwww.evlog.dev\u002Flogging\u002Fai-sdk\u002Foverview",[482],"nofollow","\nAdapters: ",[478,485,486],{"href":486,"rel":487},"https:\u002F\u002Fwww.evlog.dev\u002Fadapters",[482],[489,490,492],"h2",{"id":491},"install","Install",[428,494,495],{},"Add the AI SDK as a dependency:",[497,498,499,524,538,552],"code-group",{},[500,501,507],"pre",{"className":502,"code":503,"filename":504,"language":505,"meta":506,"style":506},"language-bash shiki shiki-themes 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messages",[510,673,665],{"class":609},[510,675,677,680],{"class":512,"line":676},5,[510,678,679],{"class":609},"  }",[510,681,682],{"class":641},")\n",[510,684,686,689,691,694,697],{"class":512,"line":685},6,[510,687,688],{"class":590},"  return",[510,690,632],{"class":601},[510,692,693],{"class":609},".",[510,695,696],{"class":597},"toTextStreamResponse",[510,698,699],{"class":641},"()\n",[510,701,703,706],{"class":512,"line":702},7,[510,704,705],{"class":609},"}",[510,707,682],{"class":601},[500,709,712],{"className":580,"code":710,"filename":711,"language":583,"meta":506,"style":506},"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",[431,713,714,739,758,764,786,803,821,825,840,866,873,880,893],{"__ignoreMap":506},[510,715,716,719,722,725,728,731,733,736],{"class":512,"line":513},[510,717,718],{"class":590},"import",[510,720,721],{"class":609}," {",[510,723,724],{"class":601}," useLogger",[510,726,727],{"class":609}," }",[510,729,730],{"class":590}," from",[510,732,656],{"class":609},[510,734,735],{"class":519},"evlog",[510,737,738],{"class":609},"'\n",[510,740,741,743,745,748,750,752,754,756],{"class":512,"line":626},[510,742,718],{"class":590},[510,744,721],{"class":609},[510,746,747],{"class":601}," createAILogger",[510,749,727],{"class":609},[510,751,730],{"class":590},[510,753,656],{"class":609},[510,755,433],{"class":519},[510,757,738],{"class":609},[510,759,760],{"class":512,"line":647},[510,761,763],{"emptyLinePlaceholder":762},true,"\n",[510,765,766,768,770,772,774,776,778,780,782,784],{"class":512,"line":668},[510,767,591],{"class":590},[510,769,594],{"class":590},[510,771,598],{"class":597},[510,773,602],{"class":601},[510,775,606],{"class":605},[510,777,610],{"class":609},[510,779,614],{"class":613},[510,781,617],{"class":609},[510,783,620],{"class":605},[510,785,623],{"class":609},[510,787,788,790,793,795,797,799,801],{"class":512,"line":676},[510,789,629],{"class":605},[510,791,792],{"class":601}," log",[510,794,635],{"class":609},[510,796,724],{"class":597},[510,798,602],{"class":641},[510,800,614],{"class":601},[510,802,682],{"class":641},[510,804,805,807,810,812,814,816,819],{"class":512,"line":685},[510,806,629],{"class":605},[510,808,809],{"class":601}," ai",[510,811,635],{"class":609},[510,813,747],{"class":597},[510,815,602],{"class":641},[510,817,818],{"class":601},"log",[510,820,682],{"class":641},[510,822,823],{"class":512,"line":702},[510,824,763],{"emptyLinePlaceholder":762},[510,826,828,830,832,834,836,838],{"class":512,"line":827},8,[510,829,629],{"class":605},[510,831,632],{"class":601},[510,833,635],{"class":609},[510,835,638],{"class":597},[510,837,602],{"class":641},[510,839,644],{"class":609},[510,841,843,845,847,849,851,854,856,858,860,862,864],{"class":512,"line":842},9,[510,844,650],{"class":641},[510,846,653],{"class":609},[510,848,809],{"class":601},[510,850,693],{"class":609},[510,852,853],{"class":597},"wrap",[510,855,602],{"class":641},[510,857,662],{"class":609},[510,859,659],{"class":519},[510,861,662],{"class":609},[510,863,617],{"class":641},[510,865,665],{"class":609},[510,867,869,871],{"class":512,"line":868},10,[510,870,671],{"class":601},[510,872,665],{"class":609},[510,874,876,878],{"class":512,"line":875},11,[510,877,679],{"class":609},[510,879,682],{"class":641},[510,881,883,885,887,889,891],{"class":512,"line":882},12,[510,884,688],{"class":590},[510,886,632],{"class":601},[510,888,693],{"class":609},[510,890,696],{"class":597},[510,892,699],{"class":641},[510,894,896,898],{"class":512,"line":895},13,[510,897,705],{"class":609},[510,899,682],{"class":601},[428,901,902],{},"Your wide event now includes:",[500,904,909],{"className":905,"code":906,"filename":907,"language":908,"meta":506,"style":506},"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  \"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",[431,910,911,915,938,958,975,995,1008,1025,1045,1065,1081,1097,1113,1129,1150,1167,1184,1199,1205],{"__ignoreMap":506},[510,912,913],{"class":512,"line":513},[510,914,644],{"class":609},[510,916,917,920,923,926,928,931,934,936],{"class":512,"line":626},[510,918,919],{"class":609},"  \"",[510,921,922],{"class":605},"method",[510,924,925],{"class":609},"\"",[510,927,653],{"class":609},[510,929,930],{"class":609}," \"",[510,932,933],{"class":519},"POST",[510,935,925],{"class":609},[510,937,665],{"class":609},[510,939,940,942,945,947,949,951,954,956],{"class":512,"line":647},[510,941,919],{"class":609},[510,943,944],{"class":605},"path",[510,946,925],{"class":609},[510,948,653],{"class":609},[510,950,930],{"class":609},[510,952,953],{"class":519},"\u002Fapi\u002Fchat",[510,955,925],{"class":609},[510,957,665],{"class":609},[510,959,960,962,965,967,969,973],{"class":512,"line":668},[510,961,919],{"class":609},[510,963,964],{"class":605},"status",[510,966,925],{"class":609},[510,968,653],{"class":609},[510,970,972],{"class":971},"sbssI"," 200",[510,974,665],{"class":609},[510,976,977,979,982,984,986,988,991,993],{"class":512,"line":676},[510,978,919],{"class":609},[510,980,981],{"class":605},"duration",[510,983,925],{"class":609},[510,985,653],{"class":609},[510,987,930],{"class":609},[510,989,990],{"class":519},"4.5s",[510,992,925],{"class":609},[510,994,665],{"class":609},[510,996,997,999,1002,1004,1006],{"class":512,"line":685},[510,998,919],{"class":609},[510,1000,1001],{"class":605},"ai",[510,1003,925],{"class":609},[510,1005,653],{"class":609},[510,1007,623],{"class":609},[510,1009,1010,1013,1016,1018,1020,1023],{"class":512,"line":702},[510,1011,1012],{"class":609},"    \"",[510,1014,1015],{"class":516},"calls",[510,1017,925],{"class":609},[510,1019,653],{"class":609},[510,1021,1022],{"class":971}," 1",[510,1024,665],{"class":609},[510,1026,1027,1029,1032,1034,1036,1038,1041,1043],{"class":512,"line":827},[510,1028,1012],{"class":609},[510,1030,1031],{"class":516},"model",[510,1033,925],{"class":609},[510,1035,653],{"class":609},[510,1037,930],{"class":609},[510,1039,1040],{"class":519},"claude-sonnet-4.6",[510,1042,925],{"class":609},[510,1044,665],{"class":609},[510,1046,1047,1049,1052,1054,1056,1058,1061,1063],{"class":512,"line":842},[510,1048,1012],{"class":609},[510,1050,1051],{"class":516},"provider",[510,1053,925],{"class":609},[510,1055,653],{"class":609},[510,1057,930],{"class":609},[510,1059,1060],{"class":519},"anthropic",[510,1062,925],{"class":609},[510,1064,665],{"class":609},[510,1066,1067,1069,1072,1074,1076,1079],{"class":512,"line":868},[510,1068,1012],{"class":609},[510,1070,1071],{"class":516},"inputTokens",[510,1073,925],{"class":609},[510,1075,653],{"class":609},[510,1077,1078],{"class":971}," 3312",[510,1080,665],{"class":609},[510,1082,1083,1085,1088,1090,1092,1095],{"class":512,"line":875},[510,1084,1012],{"class":609},[510,1086,1087],{"class":516},"outputTokens",[510,1089,925],{"class":609},[510,1091,653],{"class":609},[510,1093,1094],{"class":971}," 814",[510,1096,665],{"class":609},[510,1098,1099,1101,1104,1106,1108,1111],{"class":512,"line":882},[510,1100,1012],{"class":609},[510,1102,1103],{"class":516},"totalTokens",[510,1105,925],{"class":609},[510,1107,653],{"class":609},[510,1109,1110],{"class":971}," 4126",[510,1112,665],{"class":609},[510,1114,1115,1117,1120,1122,1124,1127],{"class":512,"line":895},[510,1116,1012],{"class":609},[510,1118,1119],{"class":516},"reasoningTokens",[510,1121,925],{"class":609},[510,1123,653],{"class":609},[510,1125,1126],{"class":971}," 225",[510,1128,665],{"class":609},[510,1130,1132,1134,1137,1139,1141,1143,1146,1148],{"class":512,"line":1131},14,[510,1133,1012],{"class":609},[510,1135,1136],{"class":516},"finishReason",[510,1138,925],{"class":609},[510,1140,653],{"class":609},[510,1142,930],{"class":609},[510,1144,1145],{"class":519},"stop",[510,1147,925],{"class":609},[510,1149,665],{"class":609},[510,1151,1153,1155,1158,1160,1162,1165],{"class":512,"line":1152},15,[510,1154,1012],{"class":609},[510,1156,1157],{"class":516},"msToFirstChunk",[510,1159,925],{"class":609},[510,1161,653],{"class":609},[510,1163,1164],{"class":971}," 234",[510,1166,665],{"class":609},[510,1168,1170,1172,1175,1177,1179,1182],{"class":512,"line":1169},16,[510,1171,1012],{"class":609},[510,1173,1174],{"class":516},"msToFinish",[510,1176,925],{"class":609},[510,1178,653],{"class":609},[510,1180,1181],{"class":971}," 4500",[510,1183,665],{"class":609},[510,1185,1187,1189,1192,1194,1196],{"class":512,"line":1186},17,[510,1188,1012],{"class":609},[510,1190,1191],{"class":516},"tokensPerSecond",[510,1193,925],{"class":609},[510,1195,653],{"class":609},[510,1197,1198],{"class":971}," 180\n",[510,1200,1202],{"class":512,"line":1201},18,[510,1203,1204],{"class":609},"  }\n",[510,1206,1208],{"class":512,"line":1207},19,[510,1209,1210],{"class":609},"}\n",[489,1212,1214],{"id":1213},"how-it-works","How It Works",[428,1216,1217,1220,1221,1224],{},[431,1218,1219],{},"createAILogger(log, options?)"," returns an ",[431,1222,1223],{},"AILogger"," with the following methods:",[1226,1227,1228,1241],"table",{},[1229,1230,1231],"thead",{},[1232,1233,1234,1238],"tr",{},[1235,1236,1237],"th",{},"Method",[1235,1239,1240],{},"Description",[1242,1243,1244,1274,1292,1305,1319],"tbody",{},[1232,1245,1246,1252],{},[1247,1248,1249],"td",{},[431,1250,1251],{},"wrap(model)",[1247,1253,1254,1255,1258,1259,1262,1263,1266,1267,1270,1271,693],{},"Wraps a language model with middleware. Accepts a model string (e.g. ",[431,1256,1257],{},"'anthropic\u002Fclaude-sonnet-4.6'",") or a ",[431,1260,1261],{},"LanguageModelV3"," object. Works with ",[431,1264,1265],{},"generateText",", ",[431,1268,1269],{},"streamText",", and ",[431,1272,1273],{},"ToolLoopAgent",[1232,1275,1276,1281],{},[1247,1277,1278],{},[431,1279,1280],{},"captureEmbed(result)",[1247,1282,1283,1284,1287,1288,1291],{},"Manually captures token usage, model info, and dimensions from ",[431,1285,1286],{},"embed()"," or ",[431,1289,1290],{},"embedMany()"," results.",[1232,1293,1294,1299],{},[1247,1295,1296],{},[431,1297,1298],{},"getMetadata()",[1247,1300,1301,1302,693],{},"Returns a snapshot of the current execution metadata. See ",[478,1303,1304],{"href":91},"Access Metadata",[1232,1306,1307,1312],{},[1247,1308,1309],{},[431,1310,1311],{},"getEstimatedCost()",[1247,1313,1314,1315,1318],{},"Returns the current estimated cost in dollars when a ",[431,1316,1317],{},"cost"," map is configured.",[1232,1320,1321,1326],{},[1247,1322,1323],{},[431,1324,1325],{},"onUpdate(callback)",[1247,1327,1328],{},"Subscribe to metadata updates. Fires on every step, embed, error, and integration finish.",[428,1330,1331],{},"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.",[489,1333,1335],{"id":1334},"where-to-next","Where to next",[1337,1338,1339,1348,1351,1357],"card-group",{},[1340,1341,1343,1266,1345,1347],"card",{"icon":83,"title":1342,"to":81},"Usage Patterns",[431,1344,1269],{},[431,1346,1265],{},", multi-step agents, RAG, multiple models — every common pattern, ready to copy.",[1340,1349,1350],{"icon":88,"title":85,"to":86},"Capture tool inputs (with redaction and truncation), enable cost estimation, and handle errors.",[1340,1352,1353,1354,1356],{"icon":93,"title":1304,"to":91},"Read the captured ",[431,1355,1001],{}," data inside your handler — persist it, bill against it, or stream it to the client.",[1340,1358,1360,1361,1364],{"icon":98,"title":1359,"to":96},"Deeper Telemetry","Add tool execution timing and total wall time with ",[431,1362,1363],{},"createEvlogIntegration",". Compose with other middlewares.",[489,1366,1368],{"id":1367},"works-with-all-frameworks","Works With All Frameworks",[428,1370,1371,1373],{},[431,1372,433],{}," works with any framework that evlog supports:",[497,1375,1376,1451,1568,1661,1757,1846,1916],{},[500,1377,1379],{"className":580,"code":1378,"filename":211,"language":583,"meta":506,"style":506},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nconst log = useLogger(event)\nconst ai = createAILogger(log)\n",[431,1380,1381,1399,1417,1421,1437],{"__ignoreMap":506},[510,1382,1383,1385,1387,1389,1391,1393,1395,1397],{"class":512,"line":513},[510,1384,718],{"class":590},[510,1386,721],{"class":609},[510,1388,724],{"class":601},[510,1390,727],{"class":609},[510,1392,730],{"class":590},[510,1394,656],{"class":609},[510,1396,735],{"class":519},[510,1398,738],{"class":609},[510,1400,1401,1403,1405,1407,1409,1411,1413,1415],{"class":512,"line":626},[510,1402,718],{"class":590},[510,1404,721],{"class":609},[510,1406,747],{"class":601},[510,1408,727],{"class":609},[510,1410,730],{"class":590},[510,1412,656],{"class":609},[510,1414,433],{"class":519},[510,1416,738],{"class":609},[510,1418,1419],{"class":512,"line":647},[510,1420,763],{"emptyLinePlaceholder":762},[510,1422,1423,1426,1429,1432,1434],{"class":512,"line":668},[510,1424,1425],{"class":605},"const",[510,1427,1428],{"class":601}," log ",[510,1430,1431],{"class":609},"=",[510,1433,724],{"class":597},[510,1435,1436],{"class":601},"(event)\n",[510,1438,1439,1441,1444,1446,1448],{"class":512,"line":676},[510,1440,1425],{"class":605},[510,1442,1443],{"class":601}," ai ",[510,1445,1431],{"class":609},[510,1447,747],{"class":597},[510,1449,1450],{"class":601},"(log)\n",[500,1452,1454],{"className":580,"code":1453,"filename":216,"language":583,"meta":506,"style":506},"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",[431,1455,1456,1481,1499,1503,1528,1540,1556,1562],{"__ignoreMap":506},[510,1457,1458,1460,1462,1465,1468,1470,1472,1474,1476,1479],{"class":512,"line":513},[510,1459,718],{"class":590},[510,1461,721],{"class":609},[510,1463,1464],{"class":601}," withEvlog",[510,1466,1467],{"class":609},",",[510,1469,724],{"class":601},[510,1471,727],{"class":609},[510,1473,730],{"class":590},[510,1475,656],{"class":609},[510,1477,1478],{"class":519},"@\u002Flib\u002Fevlog",[510,1480,738],{"class":609},[510,1482,1483,1485,1487,1489,1491,1493,1495,1497],{"class":512,"line":626},[510,1484,718],{"class":590},[510,1486,721],{"class":609},[510,1488,747],{"class":601},[510,1490,727],{"class":609},[510,1492,730],{"class":590},[510,1494,656],{"class":609},[510,1496,433],{"class":519},[510,1498,738],{"class":609},[510,1500,1501],{"class":512,"line":647},[510,1502,763],{"emptyLinePlaceholder":762},[510,1504,1505,1507,1510,1513,1515,1517,1519,1521,1524,1526],{"class":512,"line":668},[510,1506,591],{"class":590},[510,1508,1509],{"class":605}," const",[510,1511,1512],{"class":601}," POST ",[510,1514,1431],{"class":609},[510,1516,1464],{"class":597},[510,1518,602],{"class":601},[510,1520,606],{"class":605},[510,1522,1523],{"class":609}," ()",[510,1525,620],{"class":605},[510,1527,623],{"class":609},[510,1529,1530,1532,1534,1536,1538],{"class":512,"line":676},[510,1531,629],{"class":605},[510,1533,792],{"class":601},[510,1535,635],{"class":609},[510,1537,724],{"class":597},[510,1539,699],{"class":641},[510,1541,1542,1544,1546,1548,1550,1552,1554],{"class":512,"line":685},[510,1543,629],{"class":605},[510,1545,809],{"class":601},[510,1547,635],{"class":609},[510,1549,747],{"class":597},[510,1551,602],{"class":641},[510,1553,818],{"class":601},[510,1555,682],{"class":641},[510,1557,1558],{"class":512,"line":702},[510,1559,1561],{"class":1560},"sHwdD","  \u002F\u002F ...\n",[510,1563,1564,1566],{"class":512,"line":827},[510,1565,705],{"class":609},[510,1567,682],{"class":601},[500,1569,1571],{"className":580,"code":1570,"filename":241,"language":583,"meta":506,"style":506},"import { createAILogger } from 'evlog\u002Fai'\n\napp.post('\u002Fapi\u002Fchat', (req, res) => {\n  const ai = createAILogger(req.log)\n  \u002F\u002F ...\n})\n",[431,1572,1573,1591,1595,1631,1651,1655],{"__ignoreMap":506},[510,1574,1575,1577,1579,1581,1583,1585,1587,1589],{"class":512,"line":513},[510,1576,718],{"class":590},[510,1578,721],{"class":609},[510,1580,747],{"class":601},[510,1582,727],{"class":609},[510,1584,730],{"class":590},[510,1586,656],{"class":609},[510,1588,433],{"class":519},[510,1590,738],{"class":609},[510,1592,1593],{"class":512,"line":626},[510,1594,763],{"emptyLinePlaceholder":762},[510,1596,1597,1600,1602,1605,1607,1609,1611,1613,1615,1617,1620,1622,1625,1627,1629],{"class":512,"line":647},[510,1598,1599],{"class":601},"app",[510,1601,693],{"class":609},[510,1603,1604],{"class":597},"post",[510,1606,602],{"class":601},[510,1608,662],{"class":609},[510,1610,953],{"class":519},[510,1612,662],{"class":609},[510,1614,1467],{"class":609},[510,1616,610],{"class":609},[510,1618,1619],{"class":613},"req",[510,1621,1467],{"class":609},[510,1623,1624],{"class":613}," res",[510,1626,617],{"class":609},[510,1628,620],{"class":605},[510,1630,623],{"class":609},[510,1632,1633,1635,1637,1639,1641,1643,1645,1647,1649],{"class":512,"line":668},[510,1634,629],{"class":605},[510,1636,809],{"class":601},[510,1638,635],{"class":609},[510,1640,747],{"class":597},[510,1642,602],{"class":641},[510,1644,1619],{"class":601},[510,1646,693],{"class":609},[510,1648,818],{"class":601},[510,1650,682],{"class":641},[510,1652,1653],{"class":512,"line":676},[510,1654,1561],{"class":1560},[510,1656,1657,1659],{"class":512,"line":685},[510,1658,705],{"class":609},[510,1660,682],{"class":601},[500,1662,1664],{"className":580,"code":1663,"filename":246,"language":583,"meta":506,"style":506},"import { createAILogger } from 'evlog\u002Fai'\n\napp.post('\u002Fapi\u002Fchat', (c) => {\n  const ai = createAILogger(c.get('log'))\n  \u002F\u002F 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