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shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add ai\n","pnpm","bash","",[539,616,617],{"__ignoreMap":614},[618,619,622,625,629],"span",{"class":620,"line":621},"line",1,[618,623,612],{"class":624},"sBMFI",[618,626,628],{"class":627},"sfazB"," add",[618,630,631],{"class":627}," ai\n",[608,633,636],{"className":610,"code":634,"filename":635,"language":613,"meta":614,"style":614},"bun add ai\n","bun",[539,637,638],{"__ignoreMap":614},[618,639,640,642,644],{"class":620,"line":621},[618,641,635],{"class":624},[618,643,628],{"class":627},[618,645,631],{"class":627},[608,647,650],{"className":610,"code":648,"filename":649,"language":613,"meta":614,"style":614},"yarn add ai\n","yarn",[539,651,652],{"__ignoreMap":614},[618,653,654,656,658],{"class":620,"line":621},[618,655,649],{"class":624},[618,657,628],{"class":627},[618,659,631],{"class":627},[608,661,664],{"className":610,"code":662,"filename":663,"language":613,"meta":614,"style":614},"npm install ai\n","npm",[539,665,666],{"__ignoreMap":614},[618,667,668,670,673],{"class":620,"line":621},[618,669,663],{"class":624},[618,671,672],{"class":627}," install",[618,674,631],{"class":627},[597,676,25],{"id":677},"quick-start",[679,680],"ai-sdk-wide-event",{},[536,682,683],{},"Two lines to add, one param to change:",[605,685,686,816],{},[608,687,692],{"className":688,"code":689,"filename":690,"language":691,"meta":614,"style":614},"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",[539,693,694,732,753,774,782,791,808],{"__ignoreMap":614},[618,695,696,700,703,707,711,715,719,723,726,729],{"class":620,"line":621},[618,697,699],{"class":698},"s7zQu","export",[618,701,702],{"class":698}," default",[618,704,706],{"class":705},"s2Zo4"," defineEventHandler",[618,708,710],{"class":709},"sTEyZ","(",[618,712,714],{"class":713},"spNyl","async",[618,716,718],{"class":717},"sMK4o"," (",[618,720,722],{"class":721},"sHdIc","event",[618,724,725],{"class":717},")",[618,727,728],{"class":713}," =>",[618,730,731],{"class":717}," {\n",[618,733,735,738,741,744,747,750],{"class":620,"line":734},2,[618,736,737],{"class":713},"  const",[618,739,740],{"class":709}," result",[618,742,743],{"class":717}," =",[618,745,746],{"class":705}," streamText",[618,748,710],{"class":749},"swJcz",[618,751,752],{"class":717},"{\n",[618,754,756,759,762,765,768,771],{"class":620,"line":755},3,[618,757,758],{"class":749},"    model",[618,760,761],{"class":717},":",[618,763,764],{"class":717}," '",[618,766,767],{"class":627},"anthropic\u002Fclaude-sonnet-4.6",[618,769,770],{"class":717},"'",[618,772,773],{"class":717},",\n",[618,775,777,780],{"class":620,"line":776},4,[618,778,779],{"class":709},"    messages",[618,781,773],{"class":717},[618,783,785,788],{"class":620,"line":784},5,[618,786,787],{"class":717},"  }",[618,789,790],{"class":749},")\n",[618,792,794,797,799,802,805],{"class":620,"line":793},6,[618,795,796],{"class":698},"  return",[618,798,740],{"class":709},[618,800,801],{"class":717},".",[618,803,804],{"class":705},"toTextStreamResponse",[618,806,807],{"class":749},"()\n",[618,809,811,814],{"class":620,"line":810},7,[618,812,813],{"class":717},"}",[618,815,790],{"class":709},[608,817,820],{"className":688,"code":818,"filename":819,"language":691,"meta":614,"style":614},"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",[539,821,822,847,866,872,894,911,929,933,948,974,981,988,1001],{"__ignoreMap":614},[618,823,824,827,830,833,836,839,841,844],{"class":620,"line":621},[618,825,826],{"class":698},"import",[618,828,829],{"class":717}," {",[618,831,832],{"class":709}," useLogger",[618,834,835],{"class":717}," }",[618,837,838],{"class":698}," from",[618,840,764],{"class":717},[618,842,843],{"class":627},"evlog",[618,845,846],{"class":717},"'\n",[618,848,849,851,853,856,858,860,862,864],{"class":620,"line":734},[618,850,826],{"class":698},[618,852,829],{"class":717},[618,854,855],{"class":709}," createAILogger",[618,857,835],{"class":717},[618,859,838],{"class":698},[618,861,764],{"class":717},[618,863,541],{"class":627},[618,865,846],{"class":717},[618,867,868],{"class":620,"line":755},[618,869,871],{"emptyLinePlaceholder":870},true,"\n",[618,873,874,876,878,880,882,884,886,888,890,892],{"class":620,"line":776},[618,875,699],{"class":698},[618,877,702],{"class":698},[618,879,706],{"class":705},[618,881,710],{"class":709},[618,883,714],{"class":713},[618,885,718],{"class":717},[618,887,722],{"class":721},[618,889,725],{"class":717},[618,891,728],{"class":713},[618,893,731],{"class":717},[618,895,896,898,901,903,905,907,909],{"class":620,"line":784},[618,897,737],{"class":713},[618,899,900],{"class":709}," log",[618,902,743],{"class":717},[618,904,832],{"class":705},[618,906,710],{"class":749},[618,908,722],{"class":709},[618,910,790],{"class":749},[618,912,913,915,918,920,922,924,927],{"class":620,"line":793},[618,914,737],{"class":713},[618,916,917],{"class":709}," ai",[618,919,743],{"class":717},[618,921,855],{"class":705},[618,923,710],{"class":749},[618,925,926],{"class":709},"log",[618,928,790],{"class":749},[618,930,931],{"class":620,"line":810},[618,932,871],{"emptyLinePlaceholder":870},[618,934,936,938,940,942,944,946],{"class":620,"line":935},8,[618,937,737],{"class":713},[618,939,740],{"class":709},[618,941,743],{"class":717},[618,943,746],{"class":705},[618,945,710],{"class":749},[618,947,752],{"class":717},[618,949,951,953,955,957,959,962,964,966,968,970,972],{"class":620,"line":950},9,[618,952,758],{"class":749},[618,954,761],{"class":717},[618,956,917],{"class":709},[618,958,801],{"class":717},[618,960,961],{"class":705},"wrap",[618,963,710],{"class":749},[618,965,770],{"class":717},[618,967,767],{"class":627},[618,969,770],{"class":717},[618,971,725],{"class":749},[618,973,773],{"class":717},[618,975,977,979],{"class":620,"line":976},10,[618,978,779],{"class":709},[618,980,773],{"class":717},[618,982,984,986],{"class":620,"line":983},11,[618,985,787],{"class":717},[618,987,790],{"class":749},[618,989,991,993,995,997,999],{"class":620,"line":990},12,[618,992,796],{"class":698},[618,994,740],{"class":709},[618,996,801],{"class":717},[618,998,804],{"class":705},[618,1000,807],{"class":749},[618,1002,1004,1006],{"class":620,"line":1003},13,[618,1005,813],{"class":717},[618,1007,790],{"class":709},[536,1009,1010],{},"Your wide event now includes:",[608,1012,1017],{"className":1013,"code":1014,"filename":1015,"language":1016,"meta":614,"style":614},"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",[539,1018,1019,1023,1046,1066,1083,1103,1116,1133,1153,1173,1189,1205,1221,1237,1258,1275,1292,1307,1313],{"__ignoreMap":614},[618,1020,1021],{"class":620,"line":621},[618,1022,752],{"class":717},[618,1024,1025,1028,1031,1034,1036,1039,1042,1044],{"class":620,"line":734},[618,1026,1027],{"class":717},"  \"",[618,1029,1030],{"class":713},"method",[618,1032,1033],{"class":717},"\"",[618,1035,761],{"class":717},[618,1037,1038],{"class":717}," \"",[618,1040,1041],{"class":627},"POST",[618,1043,1033],{"class":717},[618,1045,773],{"class":717},[618,1047,1048,1050,1053,1055,1057,1059,1062,1064],{"class":620,"line":755},[618,1049,1027],{"class":717},[618,1051,1052],{"class":713},"path",[618,1054,1033],{"class":717},[618,1056,761],{"class":717},[618,1058,1038],{"class":717},[618,1060,1061],{"class":627},"\u002Fapi\u002Fchat",[618,1063,1033],{"class":717},[618,1065,773],{"class":717},[618,1067,1068,1070,1073,1075,1077,1081],{"class":620,"line":776},[618,1069,1027],{"class":717},[618,1071,1072],{"class":713},"status",[618,1074,1033],{"class":717},[618,1076,761],{"class":717},[618,1078,1080],{"class":1079},"sbssI"," 200",[618,1082,773],{"class":717},[618,1084,1085,1087,1090,1092,1094,1096,1099,1101],{"class":620,"line":784},[618,1086,1027],{"class":717},[618,1088,1089],{"class":713},"duration",[618,1091,1033],{"class":717},[618,1093,761],{"class":717},[618,1095,1038],{"class":717},[618,1097,1098],{"class":627},"4.5s",[618,1100,1033],{"class":717},[618,1102,773],{"class":717},[618,1104,1105,1107,1110,1112,1114],{"class":620,"line":793},[618,1106,1027],{"class":717},[618,1108,1109],{"class":713},"ai",[618,1111,1033],{"class":717},[618,1113,761],{"class":717},[618,1115,731],{"class":717},[618,1117,1118,1121,1124,1126,1128,1131],{"class":620,"line":810},[618,1119,1120],{"class":717},"    \"",[618,1122,1123],{"class":624},"calls",[618,1125,1033],{"class":717},[618,1127,761],{"class":717},[618,1129,1130],{"class":1079}," 1",[618,1132,773],{"class":717},[618,1134,1135,1137,1140,1142,1144,1146,1149,1151],{"class":620,"line":935},[618,1136,1120],{"class":717},[618,1138,1139],{"class":624},"model",[618,1141,1033],{"class":717},[618,1143,761],{"class":717},[618,1145,1038],{"class":717},[618,1147,1148],{"class":627},"claude-sonnet-4.6",[618,1150,1033],{"class":717},[618,1152,773],{"class":717},[618,1154,1155,1157,1160,1162,1164,1166,1169,1171],{"class":620,"line":950},[618,1156,1120],{"class":717},[618,1158,1159],{"class":624},"provider",[618,1161,1033],{"class":717},[618,1163,761],{"class":717},[618,1165,1038],{"class":717},[618,1167,1168],{"class":627},"anthropic",[618,1170,1033],{"class":717},[618,1172,773],{"class":717},[618,1174,1175,1177,1180,1182,1184,1187],{"class":620,"line":976},[618,1176,1120],{"class":717},[618,1178,1179],{"class":624},"inputTokens",[618,1181,1033],{"class":717},[618,1183,761],{"class":717},[618,1185,1186],{"class":1079}," 3312",[618,1188,773],{"class":717},[618,1190,1191,1193,1196,1198,1200,1203],{"class":620,"line":983},[618,1192,1120],{"class":717},[618,1194,1195],{"class":624},"outputTokens",[618,1197,1033],{"class":717},[618,1199,761],{"class":717},[618,1201,1202],{"class":1079}," 814",[618,1204,773],{"class":717},[618,1206,1207,1209,1212,1214,1216,1219],{"class":620,"line":990},[618,1208,1120],{"class":717},[618,1210,1211],{"class":624},"totalTokens",[618,1213,1033],{"class":717},[618,1215,761],{"class":717},[618,1217,1218],{"class":1079}," 4126",[618,1220,773],{"class":717},[618,1222,1223,1225,1228,1230,1232,1235],{"class":620,"line":1003},[618,1224,1120],{"class":717},[618,1226,1227],{"class":624},"reasoningTokens",[618,1229,1033],{"class":717},[618,1231,761],{"class":717},[618,1233,1234],{"class":1079}," 225",[618,1236,773],{"class":717},[618,1238,1240,1242,1245,1247,1249,1251,1254,1256],{"class":620,"line":1239},14,[618,1241,1120],{"class":717},[618,1243,1244],{"class":624},"finishReason",[618,1246,1033],{"class":717},[618,1248,761],{"class":717},[618,1250,1038],{"class":717},[618,1252,1253],{"class":627},"stop",[618,1255,1033],{"class":717},[618,1257,773],{"class":717},[618,1259,1261,1263,1266,1268,1270,1273],{"class":620,"line":1260},15,[618,1262,1120],{"class":717},[618,1264,1265],{"class":624},"msToFirstChunk",[618,1267,1033],{"class":717},[618,1269,761],{"class":717},[618,1271,1272],{"class":1079}," 234",[618,1274,773],{"class":717},[618,1276,1278,1280,1283,1285,1287,1290],{"class":620,"line":1277},16,[618,1279,1120],{"class":717},[618,1281,1282],{"class":624},"msToFinish",[618,1284,1033],{"class":717},[618,1286,761],{"class":717},[618,1288,1289],{"class":1079}," 4500",[618,1291,773],{"class":717},[618,1293,1295,1297,1300,1302,1304],{"class":620,"line":1294},17,[618,1296,1120],{"class":717},[618,1298,1299],{"class":624},"tokensPerSecond",[618,1301,1033],{"class":717},[618,1303,761],{"class":717},[618,1305,1306],{"class":1079}," 180\n",[618,1308,1310],{"class":620,"line":1309},18,[618,1311,1312],{"class":717},"  }\n",[618,1314,1316],{"class":620,"line":1315},19,[618,1317,1318],{"class":717},"}\n",[597,1320,1322],{"id":1321},"how-it-works","How It Works",[536,1324,1325,1328,1329,1332],{},[539,1326,1327],{},"createAILogger(log, options?)"," returns an ",[539,1330,1331],{},"AILogger"," with the following methods:",[1334,1335,1336,1349],"table",{},[1337,1338,1339],"thead",{},[1340,1341,1342,1346],"tr",{},[1343,1344,1345],"th",{},"Method",[1343,1347,1348],{},"Description",[1350,1351,1352,1386,1404,1417,1431],"tbody",{},[1340,1353,1354,1360],{},[1355,1356,1357],"td",{},[539,1358,1359],{},"wrap(model)",[1355,1361,1362,1363,1366,1367,1370,1371,1374,1375,1378,1379,1382,1383,801],{},"Wraps a language model with middleware. Accepts a model string (e.g. ",[539,1364,1365],{},"'anthropic\u002Fclaude-sonnet-4.6'",") or a ",[539,1368,1369],{},"LanguageModelV3"," \u002F ",[539,1372,1373],{},"LanguageModelV4"," object. Works with ",[539,1376,1377],{},"generateText",", ",[539,1380,1381],{},"streamText",", and ",[539,1384,1385],{},"ToolLoopAgent",[1340,1387,1388,1393],{},[1355,1389,1390],{},[539,1391,1392],{},"captureEmbed(result)",[1355,1394,1395,1396,1399,1400,1403],{},"Manually captures token usage, model info, and dimensions from ",[539,1397,1398],{},"embed()"," or ",[539,1401,1402],{},"embedMany()"," results.",[1340,1405,1406,1411],{},[1355,1407,1408],{},[539,1409,1410],{},"getMetadata()",[1355,1412,1413,1414,801],{},"Returns a snapshot of the current execution metadata. See ",[586,1415,1416],{"href":342},"Access Metadata",[1340,1418,1419,1424],{},[1355,1420,1421],{},[539,1422,1423],{},"getEstimatedCost()",[1355,1425,1426,1427,1430],{},"Returns the current estimated cost in dollars when a ",[539,1428,1429],{},"cost"," map is configured.",[1340,1432,1433,1438],{},[1355,1434,1435],{},[539,1436,1437],{},"onUpdate(callback)",[1355,1439,1440],{},"Subscribe to metadata updates. Fires on every step, embed, error, and integration finish.",[536,1442,1443],{},"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.",[597,1445,1447],{"id":1446},"where-to-next","Where to next",[1449,1450,1451,1460,1463,1469],"card-group",{},[1452,1453,1455,1378,1457,1459],"card",{"icon":334,"title":1454,"to":332},"Usage Patterns",[539,1456,1381],{},[539,1458,1377],{},", multi-step agents, RAG, multiple models — every common pattern, ready to copy.",[1452,1461,1462],{"icon":339,"title":336,"to":337},"Capture tool inputs (with redaction and truncation), enable cost estimation, and handle errors.",[1452,1464,1465,1466,1468],{"icon":344,"title":1416,"to":342},"Read the captured ",[539,1467,1109],{}," data inside your handler — persist it, bill against it, or stream it to the client.",[1452,1470,1472,1473,1476],{"icon":349,"title":1471,"to":347},"Deeper Telemetry","Add tool execution timing and total wall time with ",[539,1474,1475],{},"createEvlogIntegration",". Compose with other middlewares.",[597,1478,1480],{"id":1479},"works-with-all-frameworks","Works With All Frameworks",[536,1482,1483,1485],{},[539,1484,541],{}," works with any framework that evlog supports:",[605,1487,1488,1563,1680,1773,1869,1958,2028],{},[608,1489,1491],{"className":688,"code":1490,"filename":230,"language":691,"meta":614,"style":614},"import { useLogger } from 'evlog'\nimport { createAILogger } from 'evlog\u002Fai'\n\nconst log = useLogger(event)\nconst ai = createAILogger(log)\n",[539,1492,1493,1511,1529,1533,1549],{"__ignoreMap":614},[618,1494,1495,1497,1499,1501,1503,1505,1507,1509],{"class":620,"line":621},[618,1496,826],{"class":698},[618,1498,829],{"class":717},[618,1500,832],{"class":709},[618,1502,835],{"class":717},[618,1504,838],{"class":698},[618,1506,764],{"class":717},[618,1508,843],{"class":627},[618,1510,846],{"class":717},[618,1512,1513,1515,1517,1519,1521,1523,1525,1527],{"class":620,"line":734},[618,1514,826],{"class":698},[618,1516,829],{"class":717},[618,1518,855],{"class":709},[618,1520,835],{"class":717},[618,1522,838],{"class":698},[618,1524,764],{"class":717},[618,1526,541],{"class":627},[618,1528,846],{"class":717},[618,1530,1531],{"class":620,"line":755},[618,1532,871],{"emptyLinePlaceholder":870},[618,1534,1535,1538,1541,1544,1546],{"class":620,"line":776},[618,1536,1537],{"class":713},"const",[618,1539,1540],{"class":709}," log 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