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shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add ai\n","pnpm","bash","",[535,612,613],{"__ignoreMap":610},[614,615,618,621,625],"span",{"class":616,"line":617},"line",1,[614,619,608],{"class":620},"sBMFI",[614,622,624],{"class":623},"sfazB"," add",[614,626,627],{"class":623}," ai\n",[604,629,632],{"className":606,"code":630,"filename":631,"language":609,"meta":610,"style":610},"bun add ai\n","bun",[535,633,634],{"__ignoreMap":610},[614,635,636,638,640],{"class":616,"line":617},[614,637,631],{"class":620},[614,639,624],{"class":623},[614,641,627],{"class":623},[604,643,646],{"className":606,"code":644,"filename":645,"language":609,"meta":610,"style":610},"yarn add ai\n","yarn",[535,647,648],{"__ignoreMap":610},[614,649,650,652,654],{"class":616,"line":617},[614,651,645],{"class":620},[614,653,624],{"class":623},[614,655,627],{"class":623},[604,657,660],{"className":606,"code":658,"filename":659,"language":609,"meta":610,"style":610},"npm install ai\n","npm",[535,661,662],{"__ignoreMap":610},[614,663,664,666,669],{"class":616,"line":617},[614,665,659],{"class":620},[614,667,668],{"class":623}," install",[614,670,627],{"class":623},[593,672,25],{"id":673},"quick-start",[675,676],"ai-sdk-wide-event",{},[532,678,679],{},"Two lines to add, one param to change:",[601,681,682,812],{},[604,683,688],{"className":684,"code":685,"filename":686,"language":687,"meta":610,"style":610},"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",[535,689,690,728,749,770,778,787,804],{"__ignoreMap":610},[614,691,692,696,699,703,707,711,715,719,722,725],{"class":616,"line":617},[614,693,695],{"class":694},"s7zQu","export",[614,697,698],{"class":694}," default",[614,700,702],{"class":701},"s2Zo4"," defineEventHandler",[614,704,706],{"class":705},"sTEyZ","(",[614,708,710],{"class":709},"spNyl","async",[614,712,714],{"class":713},"sMK4o"," (",[614,716,718],{"class":717},"sHdIc","event",[614,720,721],{"class":713},")",[614,723,724],{"class":709}," =>",[614,726,727],{"class":713}," {\n",[614,729,731,734,737,740,743,746],{"class":616,"line":730},2,[614,732,733],{"class":709},"  const",[614,735,736],{"class":705}," result",[614,738,739],{"class":713}," =",[614,741,742],{"class":701}," streamText",[614,744,706],{"class":745},"swJcz",[614,747,748],{"class":713},"{\n",[614,750,752,755,758,761,764,767],{"class":616,"line":751},3,[614,753,754],{"class":745},"    model",[614,756,757],{"class":713},":",[614,759,760],{"class":713}," '",[614,762,763],{"class":623},"anthropic\u002Fclaude-sonnet-4.6",[614,765,766],{"class":713},"'",[614,768,769],{"class":713},",\n",[614,771,773,776],{"class":616,"line":772},4,[614,774,775],{"class":705},"    messages",[614,777,769],{"class":713},[614,779,781,784],{"class":616,"line":780},5,[614,782,783],{"class":713},"  }",[614,785,786],{"class":745},")\n",[614,788,790,793,795,798,801],{"class":616,"line":789},6,[614,791,792],{"class":694},"  return",[614,794,736],{"class":705},[614,796,797],{"class":713},".",[614,799,800],{"class":701},"toTextStreamResponse",[614,802,803],{"class":745},"()\n",[614,805,807,810],{"class":616,"line":806},7,[614,808,809],{"class":713},"}",[614,811,786],{"class":705},[604,813,816],{"className":684,"code":814,"filename":815,"language":687,"meta":610,"style":610},"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",[535,817,818,843,862,868,890,907,925,929,944,970,977,984,997],{"__ignoreMap":610},[614,819,820,823,826,829,832,835,837,840],{"class":616,"line":617},[614,821,822],{"class":694},"import",[614,824,825],{"class":713}," {",[614,827,828],{"class":705}," useLogger",[614,830,831],{"class":713}," }",[614,833,834],{"class":694}," from",[614,836,760],{"class":713},[614,838,839],{"class":623},"evlog",[614,841,842],{"class":713},"'\n",[614,844,845,847,849,852,854,856,858,860],{"class":616,"line":730},[614,846,822],{"class":694},[614,848,825],{"class":713},[614,850,851],{"class":705}," createAILogger",[614,853,831],{"class":713},[614,855,834],{"class":694},[614,857,760],{"class":713},[614,859,537],{"class":623},[614,861,842],{"class":713},[614,863,864],{"class":616,"line":751},[614,865,867],{"emptyLinePlaceholder":866},true,"\n",[614,869,870,872,874,876,878,880,882,884,886,888],{"class":616,"line":772},[614,871,695],{"class":694},[614,873,698],{"class":694},[614,875,702],{"class":701},[614,877,706],{"class":705},[614,879,710],{"class":709},[614,881,714],{"class":713},[614,883,718],{"class":717},[614,885,721],{"class":713},[614,887,724],{"class":709},[614,889,727],{"class":713},[614,891,892,894,897,899,901,903,905],{"class":616,"line":780},[614,893,733],{"class":709},[614,895,896],{"class":705}," log",[614,898,739],{"class":713},[614,900,828],{"class":701},[614,902,706],{"class":745},[614,904,718],{"class":705},[614,906,786],{"class":745},[614,908,909,911,914,916,918,920,923],{"class":616,"line":789},[614,910,733],{"class":709},[614,912,913],{"class":705}," ai",[614,915,739],{"class":713},[614,917,851],{"class":701},[614,919,706],{"class":745},[614,921,922],{"class":705},"log",[614,924,786],{"class":745},[614,926,927],{"class":616,"line":806},[614,928,867],{"emptyLinePlaceholder":866},[614,930,932,934,936,938,940,942],{"class":616,"line":931},8,[614,933,733],{"class":709},[614,935,736],{"class":705},[614,937,739],{"class":713},[614,939,742],{"class":701},[614,941,706],{"class":745},[614,943,748],{"class":713},[614,945,947,949,951,953,955,958,960,962,964,966,968],{"class":616,"line":946},9,[614,948,754],{"class":745},[614,950,757],{"class":713},[614,952,913],{"class":705},[614,954,797],{"class":713},[614,956,957],{"class":701},"wrap",[614,959,706],{"class":745},[614,961,766],{"class":713},[614,963,763],{"class":623},[614,965,766],{"class":713},[614,967,721],{"class":745},[614,969,769],{"class":713},[614,971,973,975],{"class":616,"line":972},10,[614,974,775],{"class":705},[614,976,769],{"class":713},[614,978,980,982],{"class":616,"line":979},11,[614,981,783],{"class":713},[614,983,786],{"class":745},[614,985,987,989,991,993,995],{"class":616,"line":986},12,[614,988,792],{"class":694},[614,990,736],{"class":705},[614,992,797],{"class":713},[614,994,800],{"class":701},[614,996,803],{"class":745},[614,998,1000,1002],{"class":616,"line":999},13,[614,1001,809],{"class":713},[614,1003,786],{"class":705},[532,1005,1006],{},"Your wide event now includes:",[604,1008,1013],{"className":1009,"code":1010,"filename":1011,"language":1012,"meta":610,"style":610},"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",[535,1014,1015,1019,1042,1062,1079,1099,1112,1129,1149,1169,1185,1201,1217,1233,1254,1271,1288,1303,1309],{"__ignoreMap":610},[614,1016,1017],{"class":616,"line":617},[614,1018,748],{"class":713},[614,1020,1021,1024,1027,1030,1032,1035,1038,1040],{"class":616,"line":730},[614,1022,1023],{"class":713},"  \"",[614,1025,1026],{"class":709},"method",[614,1028,1029],{"class":713},"\"",[614,1031,757],{"class":713},[614,1033,1034],{"class":713}," \"",[614,1036,1037],{"class":623},"POST",[614,1039,1029],{"class":713},[614,1041,769],{"class":713},[614,1043,1044,1046,1049,1051,1053,1055,1058,1060],{"class":616,"line":751},[614,1045,1023],{"class":713},[614,1047,1048],{"class":709},"path",[614,1050,1029],{"class":713},[614,1052,757],{"class":713},[614,1054,1034],{"class":713},[614,1056,1057],{"class":623},"\u002Fapi\u002Fchat",[614,1059,1029],{"class":713},[614,1061,769],{"class":713},[614,1063,1064,1066,1069,1071,1073,1077],{"class":616,"line":772},[614,1065,1023],{"class":713},[614,1067,1068],{"class":709},"status",[614,1070,1029],{"class":713},[614,1072,757],{"class":713},[614,1074,1076],{"class":1075},"sbssI"," 200",[614,1078,769],{"class":713},[614,1080,1081,1083,1086,1088,1090,1092,1095,1097],{"class":616,"line":780},[614,1082,1023],{"class":713},[614,1084,1085],{"class":709},"duration",[614,1087,1029],{"class":713},[614,1089,757],{"class":713},[614,1091,1034],{"class":713},[614,1093,1094],{"class":623},"4.5s",[614,1096,1029],{"class":713},[614,1098,769],{"class":713},[614,1100,1101,1103,1106,1108,1110],{"class":616,"line":789},[614,1102,1023],{"class":713},[614,1104,1105],{"class":709},"ai",[614,1107,1029],{"class":713},[614,1109,757],{"class":713},[614,1111,727],{"class":713},[614,1113,1114,1117,1120,1122,1124,1127],{"class":616,"line":806},[614,1115,1116],{"class":713},"    \"",[614,1118,1119],{"class":620},"calls",[614,1121,1029],{"class":713},[614,1123,757],{"class":713},[614,1125,1126],{"class":1075}," 1",[614,1128,769],{"class":713},[614,1130,1131,1133,1136,1138,1140,1142,1145,1147],{"class":616,"line":931},[614,1132,1116],{"class":713},[614,1134,1135],{"class":620},"model",[614,1137,1029],{"class":713},[614,1139,757],{"class":713},[614,1141,1034],{"class":713},[614,1143,1144],{"class":623},"claude-sonnet-4.6",[614,1146,1029],{"class":713},[614,1148,769],{"class":713},[614,1150,1151,1153,1156,1158,1160,1162,1165,1167],{"class":616,"line":946},[614,1152,1116],{"class":713},[614,1154,1155],{"class":620},"provider",[614,1157,1029],{"class":713},[614,1159,757],{"class":713},[614,1161,1034],{"class":713},[614,1163,1164],{"class":623},"anthropic",[614,1166,1029],{"class":713},[614,1168,769],{"class":713},[614,1170,1171,1173,1176,1178,1180,1183],{"class":616,"line":972},[614,1172,1116],{"class":713},[614,1174,1175],{"class":620},"inputTokens",[614,1177,1029],{"class":713},[614,1179,757],{"class":713},[614,1181,1182],{"class":1075}," 3312",[614,1184,769],{"class":713},[614,1186,1187,1189,1192,1194,1196,1199],{"class":616,"line":979},[614,1188,1116],{"class":713},[614,1190,1191],{"class":620},"outputTokens",[614,1193,1029],{"class":713},[614,1195,757],{"class":713},[614,1197,1198],{"class":1075}," 814",[614,1200,769],{"class":713},[614,1202,1203,1205,1208,1210,1212,1215],{"class":616,"line":986},[614,1204,1116],{"class":713},[614,1206,1207],{"class":620},"totalTokens",[614,1209,1029],{"class":713},[614,1211,757],{"class":713},[614,1213,1214],{"class":1075}," 4126",[614,1216,769],{"class":713},[614,1218,1219,1221,1224,1226,1228,1231],{"class":616,"line":999},[614,1220,1116],{"class":713},[614,1222,1223],{"class":620},"reasoningTokens",[614,1225,1029],{"class":713},[614,1227,757],{"class":713},[614,1229,1230],{"class":1075}," 225",[614,1232,769],{"class":713},[614,1234,1236,1238,1241,1243,1245,1247,1250,1252],{"class":616,"line":1235},14,[614,1237,1116],{"class":713},[614,1239,1240],{"class":620},"finishReason",[614,1242,1029],{"class":713},[614,1244,757],{"class":713},[614,1246,1034],{"class":713},[614,1248,1249],{"class":623},"stop",[614,1251,1029],{"class":713},[614,1253,769],{"class":713},[614,1255,1257,1259,1262,1264,1266,1269],{"class":616,"line":1256},15,[614,1258,1116],{"class":713},[614,1260,1261],{"class":620},"msToFirstChunk",[614,1263,1029],{"class":713},[614,1265,757],{"class":713},[614,1267,1268],{"class":1075}," 234",[614,1270,769],{"class":713},[614,1272,1274,1276,1279,1281,1283,1286],{"class":616,"line":1273},16,[614,1275,1116],{"class":713},[614,1277,1278],{"class":620},"msToFinish",[614,1280,1029],{"class":713},[614,1282,757],{"class":713},[614,1284,1285],{"class":1075}," 4500",[614,1287,769],{"class":713},[614,1289,1291,1293,1296,1298,1300],{"class":616,"line":1290},17,[614,1292,1116],{"class":713},[614,1294,1295],{"class":620},"tokensPerSecond",[614,1297,1029],{"class":713},[614,1299,757],{"class":713},[614,1301,1302],{"class":1075}," 180\n",[614,1304,1306],{"class":616,"line":1305},18,[614,1307,1308],{"class":713},"  }\n",[614,1310,1312],{"class":616,"line":1311},19,[614,1313,1314],{"class":713},"}\n",[593,1316,1318],{"id":1317},"how-it-works","How It Works",[532,1320,1321,1324,1325,1328],{},[535,1322,1323],{},"createAILogger(log, options?)"," returns an ",[535,1326,1327],{},"AILogger"," with the following methods:",[1330,1331,1332,1345],"table",{},[1333,1334,1335],"thead",{},[1336,1337,1338,1342],"tr",{},[1339,1340,1341],"th",{},"Method",[1339,1343,1344],{},"Description",[1346,1347,1348,1382,1400,1413,1427],"tbody",{},[1336,1349,1350,1356],{},[1351,1352,1353],"td",{},[535,1354,1355],{},"wrap(model)",[1351,1357,1358,1359,1362,1363,1366,1367,1370,1371,1374,1375,1378,1379,797],{},"Wraps a language model with middleware. Accepts a model string (e.g. ",[535,1360,1361],{},"'anthropic\u002Fclaude-sonnet-4.6'",") or a ",[535,1364,1365],{},"LanguageModelV3"," \u002F ",[535,1368,1369],{},"LanguageModelV4"," object. Works with ",[535,1372,1373],{},"generateText",", ",[535,1376,1377],{},"streamText",", and ",[535,1380,1381],{},"ToolLoopAgent",[1336,1383,1384,1389],{},[1351,1385,1386],{},[535,1387,1388],{},"captureEmbed(result)",[1351,1390,1391,1392,1395,1396,1399],{},"Manually captures token usage, model info, and dimensions from ",[535,1393,1394],{},"embed()"," or ",[535,1397,1398],{},"embedMany()"," results.",[1336,1401,1402,1407],{},[1351,1403,1404],{},[535,1405,1406],{},"getMetadata()",[1351,1408,1409,1410,797],{},"Returns a snapshot of the current execution metadata. See ",[582,1411,1412],{"href":342},"Access Metadata",[1336,1414,1415,1420],{},[1351,1416,1417],{},[535,1418,1419],{},"getEstimatedCost()",[1351,1421,1422,1423,1426],{},"Returns the current estimated cost in dollars when a ",[535,1424,1425],{},"cost"," map is configured.",[1336,1428,1429,1434],{},[1351,1430,1431],{},[535,1432,1433],{},"onUpdate(callback)",[1351,1435,1436],{},"Subscribe to metadata updates. Fires on every step, embed, error, and integration finish.",[532,1438,1439],{},"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.",[593,1441,1443],{"id":1442},"where-to-next","Where to next",[1445,1446,1447,1456,1459,1465],"card-group",{},[1448,1449,1451,1374,1453,1455],"card",{"icon":334,"title":1450,"to":332},"Usage Patterns",[535,1452,1377],{},[535,1454,1373],{},", multi-step agents, RAG, multiple models — every common pattern, ready to copy.",[1448,1457,1458],{"icon":339,"title":336,"to":337},"Capture tool inputs (with redaction and truncation), enable cost estimation, and handle errors.",[1448,1460,1461,1462,1464],{"icon":344,"title":1412,"to":342},"Read the captured ",[535,1463,1105],{}," data inside your handler — persist it, bill against it, or stream it to the client.",[1448,1466,1468,1469,1472],{"icon":349,"title":1467,"to":347},"Deeper Telemetry","Add tool execution timing and total wall time with ",[535,1470,1471],{},"createEvlogIntegration",". Compose with other middlewares.",[593,1474,1476],{"id":1475},"works-with-all-frameworks","Works With All Frameworks",[532,1478,1479,1481],{},[535,1480,537],{}," works with any framework that evlog supports:",[601,1483,1484,1559,1676,1769,1865,1954,2024],{},[604,1485,1487],{"className":684,"code":1486,"filename":230,"language":687,"meta":610,"style":610},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nconst log = useLogger(event)\nconst ai = createAILogger(log)\n",[535,1488,1489,1507,1525,1529,1545],{"__ignoreMap":610},[614,1490,1491,1493,1495,1497,1499,1501,1503,1505],{"class":616,"line":617},[614,1492,822],{"class":694},[614,1494,825],{"class":713},[614,1496,828],{"class":705},[614,1498,831],{"class":713},[614,1500,834],{"class":694},[614,1502,760],{"class":713},[614,1504,839],{"class":623},[614,1506,842],{"class":713},[614,1508,1509,1511,1513,1515,1517,1519,1521,1523],{"class":616,"line":730},[614,1510,822],{"class":694},[614,1512,825],{"class":713},[614,1514,851],{"class":705},[614,1516,831],{"class":713},[614,1518,834],{"class":694},[614,1520,760],{"class":713},[614,1522,537],{"class":623},[614,1524,842],{"class":713},[614,1526,1527],{"class":616,"line":751},[614,1528,867],{"emptyLinePlaceholder":866},[614,1530,1531,1534,1537,1540,1542],{"class":616,"line":772},[614,1532,1533],{"class":709},"const",[614,1535,1536],{"class":705}," log 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