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ai\n","npm",[515,641,642],{"__ignoreMap":590},[594,643,644,646,649],{"class":596,"line":597},[594,645,639],{"class":600},[594,647,648],{"class":603}," install",[594,650,607],{"class":603},[573,652,25],{"id":653},"quick-start",[655,656],"ai-sdk-wide-event",{},[512,658,659],{},"Two lines to add, one param to change:",[581,661,662,792],{},[584,663,668],{"className":664,"code":665,"filename":666,"language":667,"meta":590,"style":590},"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",[515,669,670,708,729,750,758,767,784],{"__ignoreMap":590},[594,671,672,676,679,683,687,691,695,699,702,705],{"class":596,"line":597},[594,673,675],{"class":674},"s7zQu","export",[594,677,678],{"class":674}," default",[594,680,682],{"class":681},"s2Zo4"," defineEventHandler",[594,684,686],{"class":685},"sTEyZ","(",[594,688,690],{"class":689},"spNyl","async",[594,692,694],{"class":693},"sMK4o"," (",[594,696,698],{"class":697},"sHdIc","event",[594,700,701],{"class":693},")",[594,703,704],{"class":689}," =>",[594,706,707],{"class":693}," {\n",[594,709,711,714,717,720,723,726],{"class":596,"line":710},2,[594,712,713],{"class":689},"  const",[594,715,716],{"class":685}," result",[594,718,719],{"class":693}," =",[594,721,722],{"class":681}," streamText",[594,724,686],{"class":725},"swJcz",[594,727,728],{"class":693},"{\n",[594,730,732,735,738,741,744,747],{"class":596,"line":731},3,[594,733,734],{"class":725},"    model",[594,736,737],{"class":693},":",[594,739,740],{"class":693}," '",[594,742,743],{"class":603},"anthropic\u002Fclaude-sonnet-4.6",[594,745,746],{"class":693},"'",[594,748,749],{"class":693},",\n",[594,751,753,756],{"class":596,"line":752},4,[594,754,755],{"class":685},"    messages",[594,757,749],{"class":693},[594,759,761,764],{"class":596,"line":760},5,[594,762,763],{"class":693},"  }",[594,765,766],{"class":725},")\n",[594,768,770,773,775,778,781],{"class":596,"line":769},6,[594,771,772],{"class":674},"  return",[594,774,716],{"class":685},[594,776,777],{"class":693},".",[594,779,780],{"class":681},"toTextStreamResponse",[594,782,783],{"class":725},"()\n",[594,785,787,790],{"class":596,"line":786},7,[594,788,789],{"class":693},"}",[594,791,766],{"class":685},[584,793,796],{"className":664,"code":794,"filename":795,"language":667,"meta":590,"style":590},"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",[515,797,798,823,842,848,870,887,905,909,924,950,957,964,977],{"__ignoreMap":590},[594,799,800,803,806,809,812,815,817,820],{"class":596,"line":597},[594,801,802],{"class":674},"import",[594,804,805],{"class":693}," {",[594,807,808],{"class":685}," useLogger",[594,810,811],{"class":693}," }",[594,813,814],{"class":674}," from",[594,816,740],{"class":693},[594,818,819],{"class":603},"evlog",[594,821,822],{"class":693},"'\n",[594,824,825,827,829,832,834,836,838,840],{"class":596,"line":710},[594,826,802],{"class":674},[594,828,805],{"class":693},[594,830,831],{"class":685}," createAILogger",[594,833,811],{"class":693},[594,835,814],{"class":674},[594,837,740],{"class":693},[594,839,517],{"class":603},[594,841,822],{"class":693},[594,843,844],{"class":596,"line":731},[594,845,847],{"emptyLinePlaceholder":846},true,"\n",[594,849,850,852,854,856,858,860,862,864,866,868],{"class":596,"line":752},[594,851,675],{"class":674},[594,853,678],{"class":674},[594,855,682],{"class":681},[594,857,686],{"class":685},[594,859,690],{"class":689},[594,861,694],{"class":693},[594,863,698],{"class":697},[594,865,701],{"class":693},[594,867,704],{"class":689},[594,869,707],{"class":693},[594,871,872,874,877,879,881,883,885],{"class":596,"line":760},[594,873,713],{"class":689},[594,875,876],{"class":685}," log",[594,878,719],{"class":693},[594,880,808],{"class":681},[594,882,686],{"class":725},[594,884,698],{"class":685},[594,886,766],{"class":725},[594,888,889,891,894,896,898,900,903],{"class":596,"line":769},[594,890,713],{"class":689},[594,892,893],{"class":685}," ai",[594,895,719],{"class":693},[594,897,831],{"class":681},[594,899,686],{"class":725},[594,901,902],{"class":685},"log",[594,904,766],{"class":725},[594,906,907],{"class":596,"line":786},[594,908,847],{"emptyLinePlaceholder":846},[594,910,912,914,916,918,920,922],{"class":596,"line":911},8,[594,913,713],{"class":689},[594,915,716],{"class":685},[594,917,719],{"class":693},[594,919,722],{"class":681},[594,921,686],{"class":725},[594,923,728],{"class":693},[594,925,927,929,931,933,935,938,940,942,944,946,948],{"class":596,"line":926},9,[594,928,734],{"class":725},[594,930,737],{"class":693},[594,932,893],{"class":685},[594,934,777],{"class":693},[594,936,937],{"class":681},"wrap",[594,939,686],{"class":725},[594,941,746],{"class":693},[594,943,743],{"class":603},[594,945,746],{"class":693},[594,947,701],{"class":725},[594,949,749],{"class":693},[594,951,953,955],{"class":596,"line":952},10,[594,954,755],{"class":685},[594,956,749],{"class":693},[594,958,960,962],{"class":596,"line":959},11,[594,961,763],{"class":693},[594,963,766],{"class":725},[594,965,967,969,971,973,975],{"class":596,"line":966},12,[594,968,772],{"class":674},[594,970,716],{"class":685},[594,972,777],{"class":693},[594,974,780],{"class":681},[594,976,783],{"class":725},[594,978,980,982],{"class":596,"line":979},13,[594,981,789],{"class":693},[594,983,766],{"class":685},[512,985,986],{},"Your wide event now includes:",[584,988,993],{"className":989,"code":990,"filename":991,"language":992,"meta":590,"style":590},"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",[515,994,995,999,1022,1042,1059,1079,1092,1109,1129,1149,1165,1181,1197,1213,1234,1251,1268,1283,1289],{"__ignoreMap":590},[594,996,997],{"class":596,"line":597},[594,998,728],{"class":693},[594,1000,1001,1004,1007,1010,1012,1015,1018,1020],{"class":596,"line":710},[594,1002,1003],{"class":693},"  \"",[594,1005,1006],{"class":689},"method",[594,1008,1009],{"class":693},"\"",[594,1011,737],{"class":693},[594,1013,1014],{"class":693}," \"",[594,1016,1017],{"class":603},"POST",[594,1019,1009],{"class":693},[594,1021,749],{"class":693},[594,1023,1024,1026,1029,1031,1033,1035,1038,1040],{"class":596,"line":731},[594,1025,1003],{"class":693},[594,1027,1028],{"class":689},"path",[594,1030,1009],{"class":693},[594,1032,737],{"class":693},[594,1034,1014],{"class":693},[594,1036,1037],{"class":603},"\u002Fapi\u002Fchat",[594,1039,1009],{"class":693},[594,1041,749],{"class":693},[594,1043,1044,1046,1049,1051,1053,1057],{"class":596,"line":752},[594,1045,1003],{"class":693},[594,1047,1048],{"class":689},"status",[594,1050,1009],{"class":693},[594,1052,737],{"class":693},[594,1054,1056],{"class":1055},"sbssI"," 200",[594,1058,749],{"class":693},[594,1060,1061,1063,1066,1068,1070,1072,1075,1077],{"class":596,"line":760},[594,1062,1003],{"class":693},[594,1064,1065],{"class":689},"duration",[594,1067,1009],{"class":693},[594,1069,737],{"class":693},[594,1071,1014],{"class":693},[594,1073,1074],{"class":603},"4.5s",[594,1076,1009],{"class":693},[594,1078,749],{"class":693},[594,1080,1081,1083,1086,1088,1090],{"class":596,"line":769},[594,1082,1003],{"class":693},[594,1084,1085],{"class":689},"ai",[594,1087,1009],{"class":693},[594,1089,737],{"class":693},[594,1091,707],{"class":693},[594,1093,1094,1097,1100,1102,1104,1107],{"class":596,"line":786},[594,1095,1096],{"class":693},"    \"",[594,1098,1099],{"class":600},"calls",[594,1101,1009],{"class":693},[594,1103,737],{"class":693},[594,1105,1106],{"class":1055}," 1",[594,1108,749],{"class":693},[594,1110,1111,1113,1116,1118,1120,1122,1125,1127],{"class":596,"line":911},[594,1112,1096],{"class":693},[594,1114,1115],{"class":600},"model",[594,1117,1009],{"class":693},[594,1119,737],{"class":693},[594,1121,1014],{"class":693},[594,1123,1124],{"class":603},"claude-sonnet-4.6",[594,1126,1009],{"class":693},[594,1128,749],{"class":693},[594,1130,1131,1133,1136,1138,1140,1142,1145,1147],{"class":596,"line":926},[594,1132,1096],{"class":693},[594,1134,1135],{"class":600},"provider",[594,1137,1009],{"class":693},[594,1139,737],{"class":693},[594,1141,1014],{"class":693},[594,1143,1144],{"class":603},"anthropic",[594,1146,1009],{"class":693},[594,1148,749],{"class":693},[594,1150,1151,1153,1156,1158,1160,1163],{"class":596,"line":952},[594,1152,1096],{"class":693},[594,1154,1155],{"class":600},"inputTokens",[594,1157,1009],{"class":693},[594,1159,737],{"class":693},[594,1161,1162],{"class":1055}," 3312",[594,1164,749],{"class":693},[594,1166,1167,1169,1172,1174,1176,1179],{"class":596,"line":959},[594,1168,1096],{"class":693},[594,1170,1171],{"class":600},"outputTokens",[594,1173,1009],{"class":693},[594,1175,737],{"class":693},[594,1177,1178],{"class":1055}," 814",[594,1180,749],{"class":693},[594,1182,1183,1185,1188,1190,1192,1195],{"class":596,"line":966},[594,1184,1096],{"class":693},[594,1186,1187],{"class":600},"totalTokens",[594,1189,1009],{"class":693},[594,1191,737],{"class":693},[594,1193,1194],{"class":1055}," 4126",[594,1196,749],{"class":693},[594,1198,1199,1201,1204,1206,1208,1211],{"class":596,"line":979},[594,1200,1096],{"class":693},[594,1202,1203],{"class":600},"reasoningTokens",[594,1205,1009],{"class":693},[594,1207,737],{"class":693},[594,1209,1210],{"class":1055}," 225",[594,1212,749],{"class":693},[594,1214,1216,1218,1221,1223,1225,1227,1230,1232],{"class":596,"line":1215},14,[594,1217,1096],{"class":693},[594,1219,1220],{"class":600},"finishReason",[594,1222,1009],{"class":693},[594,1224,737],{"class":693},[594,1226,1014],{"class":693},[594,1228,1229],{"class":603},"stop",[594,1231,1009],{"class":693},[594,1233,749],{"class":693},[594,1235,1237,1239,1242,1244,1246,1249],{"class":596,"line":1236},15,[594,1238,1096],{"class":693},[594,1240,1241],{"class":600},"msToFirstChunk",[594,1243,1009],{"class":693},[594,1245,737],{"class":693},[594,1247,1248],{"class":1055}," 234",[594,1250,749],{"class":693},[594,1252,1254,1256,1259,1261,1263,1266],{"class":596,"line":1253},16,[594,1255,1096],{"class":693},[594,1257,1258],{"class":600},"msToFinish",[594,1260,1009],{"class":693},[594,1262,737],{"class":693},[594,1264,1265],{"class":1055}," 4500",[594,1267,749],{"class":693},[594,1269,1271,1273,1276,1278,1280],{"class":596,"line":1270},17,[594,1272,1096],{"class":693},[594,1274,1275],{"class":600},"tokensPerSecond",[594,1277,1009],{"class":693},[594,1279,737],{"class":693},[594,1281,1282],{"class":1055}," 180\n",[594,1284,1286],{"class":596,"line":1285},18,[594,1287,1288],{"class":693},"  }\n",[594,1290,1292],{"class":596,"line":1291},19,[594,1293,1294],{"class":693},"}\n",[573,1296,1298],{"id":1297},"how-it-works","How It Works",[512,1300,1301,1304,1305,1308],{},[515,1302,1303],{},"createAILogger(log, options?)"," returns an ",[515,1306,1307],{},"AILogger"," with the following methods:",[1310,1311,1312,1325],"table",{},[1313,1314,1315],"thead",{},[1316,1317,1318,1322],"tr",{},[1319,1320,1321],"th",{},"Method",[1319,1323,1324],{},"Description",[1326,1327,1328,1362,1380,1393,1407],"tbody",{},[1316,1329,1330,1336],{},[1331,1332,1333],"td",{},[515,1334,1335],{},"wrap(model)",[1331,1337,1338,1339,1342,1343,1346,1347,1350,1351,1354,1355,1358,1359,777],{},"Wraps a language model with middleware. Accepts a model string (e.g. ",[515,1340,1341],{},"'anthropic\u002Fclaude-sonnet-4.6'",") or a ",[515,1344,1345],{},"LanguageModelV3"," \u002F ",[515,1348,1349],{},"LanguageModelV4"," object. Works with ",[515,1352,1353],{},"generateText",", ",[515,1356,1357],{},"streamText",", and ",[515,1360,1361],{},"ToolLoopAgent",[1316,1363,1364,1369],{},[1331,1365,1366],{},[515,1367,1368],{},"captureEmbed(result)",[1331,1370,1371,1372,1375,1376,1379],{},"Manually captures token usage, model info, and dimensions from ",[515,1373,1374],{},"embed()"," or ",[515,1377,1378],{},"embedMany()"," results.",[1316,1381,1382,1387],{},[1331,1383,1384],{},[515,1385,1386],{},"getMetadata()",[1331,1388,1389,1390,777],{},"Returns a snapshot of the current execution metadata. See ",[562,1391,1392],{"href":322},"Access Metadata",[1316,1394,1395,1400],{},[1331,1396,1397],{},[515,1398,1399],{},"getEstimatedCost()",[1331,1401,1402,1403,1406],{},"Returns the current estimated cost in dollars when a ",[515,1404,1405],{},"cost"," map is configured.",[1316,1408,1409,1414],{},[1331,1410,1411],{},[515,1412,1413],{},"onUpdate(callback)",[1331,1415,1416],{},"Subscribe to metadata updates. Fires on every step, embed, error, and integration finish.",[512,1418,1419],{},"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.",[573,1421,1423],{"id":1422},"where-to-next","Where to next",[1425,1426,1427,1436,1439,1445],"card-group",{},[1428,1429,1431,1354,1433,1435],"card",{"icon":314,"title":1430,"to":312},"Usage Patterns",[515,1432,1357],{},[515,1434,1353],{},", multi-step agents, RAG, multiple models — every common pattern, ready to copy.",[1428,1437,1438],{"icon":319,"title":316,"to":317},"Capture tool inputs (with redaction and truncation), enable cost estimation, and handle errors.",[1428,1440,1441,1442,1444],{"icon":324,"title":1392,"to":322},"Read the captured ",[515,1443,1085],{}," data inside your handler — persist it, bill against it, or stream it to the client.",[1428,1446,1448,1449,1452],{"icon":329,"title":1447,"to":327},"Deeper Telemetry","Add tool execution timing and total wall time with ",[515,1450,1451],{},"createEvlogIntegration",". Compose with other middlewares.",[573,1454,1456],{"id":1455},"works-with-all-frameworks","Works With All Frameworks",[512,1458,1459,1461],{},[515,1460,517],{}," works with any framework that evlog supports:",[581,1463,1464,1539,1656,1749,1845,1934,2004],{},[584,1465,1467],{"className":664,"code":1466,"filename":210,"language":667,"meta":590,"style":590},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nconst log = useLogger(event)\nconst ai = createAILogger(log)\n",[515,1468,1469,1487,1505,1509,1525],{"__ignoreMap":590},[594,1470,1471,1473,1475,1477,1479,1481,1483,1485],{"class":596,"line":597},[594,1472,802],{"class":674},[594,1474,805],{"class":693},[594,1476,808],{"class":685},[594,1478,811],{"class":693},[594,1480,814],{"class":674},[594,1482,740],{"class":693},[594,1484,819],{"class":603},[594,1486,822],{"class":693},[594,1488,1489,1491,1493,1495,1497,1499,1501,1503],{"class":596,"line":710},[594,1490,802],{"class":674},[594,1492,805],{"class":693},[594,1494,831],{"class":685},[594,1496,811],{"class":693},[594,1498,814],{"class":674},[594,1500,740],{"class":693},[594,1502,517],{"class":603},[594,1504,822],{"class":693},[594,1506,1507],{"class":596,"line":731},[594,1508,847],{"emptyLinePlaceholder":846},[594,1510,1511,1514,1517,1520,1522],{"class":596,"line":752},[594,1512,1513],{"class":689},"const",[594,1515,1516],{"class":685}," log ",[594,1518,1519],{"class":693},"=",[594,1521,808],{"class":681},[594,1523,1524],{"class":685},"(event)\n",[594,1526,1527,1529,1532,1534,1536],{"class":596,"line":760},[594,1528,1513],{"class":689},[594,1530,1531],{"class":685}," ai ",[594,1533,1519],{"class":693},[594,1535,831],{"class":681},[594,1537,1538],{"class":685},"(log)\n",[584,1540,1542],{"className":664,"code":1541,"filename":215,"language":667,"meta":590,"style":590},"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",[515,1543,1544,1569,1587,1591,1616,1628,1644,1650],{"__ignoreMap":590},[594,1545,1546,1548,1550,1553,1556,1558,1560,1562,1564,1567],{"class":596,"line":597},[594,1547,802],{"class":674},[594,1549,805],{"class":693},[594,1551,1552],{"class":685}," 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...\n})\n",[515,1660,1661,1679,1683,1719,1739,1743],{"__ignoreMap":590},[594,1662,1663,1665,1667,1669,1671,1673,1675,1677],{"class":596,"line":597},[594,1664,802],{"class":674},[594,1666,805],{"class":693},[594,1668,831],{"class":685},[594,1670,811],{"class":693},[594,1672,814],{"class":674},[594,1674,740],{"class":693},[594,1676,517],{"class":603},[594,1678,822],{"class":693},[594,1680,1681],{"class":596,"line":710},[594,1682,847],{"emptyLinePlaceholder":846},[594,1684,1685,1688,1690,1693,1695,1697,1699,1701,1703,1705,1708,1710,1713,1715,1717],{"class":596,"line":731},[594,1686,1687],{"class":685},"app",[594,1689,777],{"class":693},[594,1691,1692],{"class":681},"post",[594,1694,686],{"class":685},[594,1696,746],{"class":693},[594,1698,1037],{"class":603},[594,1700,746],{"class":693},[594,1702,1555],{"class":693},[594,1704,694],{"class":693},[594,1706,1707],{"class":697},"req",[594,1709,1555],{"class":693},[594,1711,1712],{"class":697}," 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