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timing:",[504,822,827],{"className":823,"code":824,"filename":825,"language":826,"meta":510,"style":510},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"ai\": {\n    \"calls\": 2,\n    \"steps\": 2,\n    \"model\": \"claude-sonnet-4.6\",\n    \"provider\": \"anthropic\",\n    \"inputTokens\": 3500,\n    \"outputTokens\": 800,\n    \"totalTokens\": 4300,\n    \"toolCalls\": [\"getWeather\", \"searchDB\"],\n    \"tools\": [\n      { \"name\": \"getWeather\", \"durationMs\": 150, \"success\": true },\n      { \"name\": \"searchDB\", \"durationMs\": 45, \"success\": true }\n    ],\n    \"totalDurationMs\": 2340,\n    \"msToFirstChunk\": 180,\n    \"msToFinish\": 2100,\n    \"tokensPerSecond\": 380\n  }\n}\n","Wide 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2100",[514,1163,713],{"class":524},[514,1165,1167,1169,1172,1174,1176],{"class":516,"line":1166},18,[514,1168,851],{"class":524},[514,1170,1171],{"class":854},"tokensPerSecond",[514,1173,842],{"class":524},[514,1175,691],{"class":524},[514,1177,1178],{"class":862}," 380\n",[514,1180,1182],{"class":516,"line":1181},19,[514,1183,1184],{"class":524},"  }\n",[514,1186,1188],{"class":516,"line":1187},20,[514,1189,1190],{"class":524},"}\n",[488,1192,1194],{"id":1193},"standalone-without-middleware","Standalone (without middleware)",[454,1196,1197],{},"If your model is already wrapped (e.g. by another middleware), pass the request logger directly:",[504,1199,1202],{"className":506,"code":1200,"filename":1201,"language":509,"meta":510,"style":510},"import { createEvlogIntegration } from 'evlog\u002Fai'\n\nconst integration = createEvlogIntegration(log)\n\nconst result = await generateText({\n  model: somePreWrappedModel,\n  telemetry: {\n    integrations: [integration],\n  },\n})\n","server\u002Fapi\u002Fchat.post.ts",[457,1203,1204,1222,1226,1242,1246,1263,1275,1284,1296,1301],{"__ignoreMap":510},[514,1205,1206,1208,1210,1212,1214,1216,1218,1220],{"class":516,"line":517},[514,1207,521],{"class":520},[514,1209,525],{"class":524},[514,1211,561],{"class":528},[514,1213,532],{"class":524},[514,1215,535],{"class":520},[514,1217,538],{"class":524},[514,1219,570],{"class":541},[514,1221,545],{"class":524},[514,1223,1224],{"class":516,"line":548},[514,1225,579],{"emptyLinePlaceholder":578},[514,1227,1228,1231,1234,1237,1239],{"class":516,"line":575},[514,1229,1230],{"class":598},"const",[514,1232,1233],{"class":528}," integration ",[514,1235,1236],{"class":524},"=",[514,1238,561],{"class":591},[514,1240,1241],{"class":528},"(log)\n",[514,1243,1244],{"class":516,"line":582},[514,1245,579],{"emptyLinePlaceholder":578},[514,1247,1248,1250,1253,1255,1257,1259,1261],{"class":516,"line":618},[514,1249,1230],{"class":598},[514,1251,1252],{"class":528}," result ",[514,1254,1236],{"class":524},[514,1256,675],{"class":520},[514,1258,529],{"class":591},[514,1260,595],{"class":528},[514,1262,682],{"class":524},[514,1264,1265,1268,1270,1273],{"class":516,"line":641},[514,1266,1267],{"class":633},"  model",[514,1269,691],{"class":524},[514,1271,1272],{"class":528}," somePreWrappedModel",[514,1274,713],{"class":524},[514,1276,1277,1280,1282],{"class":516,"line":660},[514,1278,1279],{"class":633},"  telemetry",[514,1281,691],{"class":524},[514,1283,615],{"class":524},[514,1285,1286,1289,1291,1294],{"class":516,"line":665},[514,1287,1288],{"class":633},"    integrations",[514,1290,691],{"class":524},[514,1292,1293],{"class":528}," [integration]",[514,1295,713],{"class":524},[514,1297,1298],{"class":516,"line":685},[514,1299,1300],{"class":524},"  },\n",[514,1302,1303,1305],{"class":516,"line":716},[514,1304,815],{"class":524},[514,1306,638],{"class":528},[488,1308,1310],{"id":1309},"what-the-integration-captures","What the integration captures",[1312,1313,1314,1330],"table",{},[1315,1316,1317],"thead",{},[1318,1319,1320,1324,1327],"tr",{},[1321,1322,1323],"th",{},"Data",[1321,1325,1326],{},"Source",[1321,1328,1329],{},"Description",[1331,1332,1333,1366,1388,1411,1425],"tbody",{},[1318,1334,1335,1341,1351],{},[1336,1337,1338],"td",{},[457,1339,1340],{},"ai.tools[]",[1336,1342,1343,1346,1347,1350],{},[457,1344,1345],{},"onToolExecutionEnd"," (v7) \u002F ",[457,1348,1349],{},"onToolCallFinish"," (v6)",[1336,1352,1353,1354,1356,1357,1356,1359,1361,1362,1365],{},"Per-tool ",[457,1355,1025],{},", ",[457,1358,1042],{},[457,1360,1056],{},", and ",[457,1363,1364],{},"error"," (if failed)",[1318,1367,1368,1373,1385],{},[1336,1369,1370],{},[457,1371,1372],{},"ai.totalDurationMs",[1336,1374,1375,1378,1379,1346,1382,1350],{},[457,1376,1377],{},"onStart"," → ",[457,1380,1381],{},"onEnd",[457,1383,1384],{},"onFinish",[1336,1386,1387],{},"Total wall time from generation start to completion",[1318,1389,1390,1395,1400],{},[1336,1391,1392],{},[457,1393,1394],{},"ai.embedding",[1336,1396,1397,1399],{},[457,1398,477],{}," (v7)",[1336,1401,1402,1403,1406,1407,1410],{},"Auto-captured from ",[457,1404,1405],{},"embed()"," \u002F ",[457,1408,1409],{},"embedMany()"," when telemetry is enabled",[1318,1412,1413,1418,1422],{},[1336,1414,1415],{},[457,1416,1417],{},"ai.finishReason: 'abort'",[1336,1419,1420,1399],{},[457,1421,481],{},[1336,1423,1424],{},"Set when a streaming generation is aborted",[1318,1426,1427,1432,1438],{},[1336,1428,1429],{},[457,1430,1431],{},"ai.error",[1336,1433,1434,1406,1436,1399],{},[457,1435,481],{},[457,1437,485],{},[1336,1439,1440],{},"Abort reason or unrecoverable generation error",[454,1442,1443],{},"The middleware captures tokens, model info, and streaming metrics. The integration captures tool execution timing. Together, they give you complete AI observability.",[488,1445,1447],{"id":1446},"composability","Composability",[454,1449,1450,1453,1454,691],{},[457,1451,1452],{},"ai.wrap()"," works with models that are already wrapped by other tools. If you use supermemory, guardrails middleware, or any other model wrapper, pass the wrapped model to ",[457,1455,1452],{},[504,1457,1459],{"className":506,"code":1458,"filename":1201,"language":509,"meta":510,"style":510},"import { createAILogger } from 'evlog\u002Fai'\nimport { withSupermemory } from '@supermemory\u002Ftools\u002Fai-sdk'\nimport { createGateway } from 'ai'\n\nconst gateway = createGateway({ ... })\nconst ai = createAILogger(log)\nconst base = gateway('anthropic\u002Fclaude-sonnet-4.6')\nconst model = ai.wrap(withSupermemory(base, 'your-org-id', { mode: 'full' }))\n",[457,1460,1461,1479,1499,1518,1522,1545,1558,1580],{"__ignoreMap":510},[514,1462,1463,1465,1467,1469,1471,1473,1475,1477],{"class":516,"line":517},[514,1464,521],{"class":520},[514,1466,525],{"class":524},[514,1468,555],{"class":528},[514,1470,532],{"class":524},[514,1472,535],{"class":520},[514,1474,538],{"class":524},[514,1476,570],{"class":541},[514,1478,545],{"class":524},[514,1480,1481,1483,1485,1488,1490,1492,1494,1497],{"class":516,"line":548},[514,1482,521],{"class":520},[514,1484,525],{"class":524},[514,1486,1487],{"class":528}," withSupermemory",[514,1489,532],{"class":524},[514,1491,535],{"class":520},[514,1493,538],{"class":524},[514,1495,1496],{"class":541},"@supermemory\u002Ftools\u002Fai-sdk",[514,1498,545],{"class":524},[514,1500,1501,1503,1505,1508,1510,1512,1514,1516],{"class":516,"line":575},[514,1502,521],{"class":520},[514,1504,525],{"class":524},[514,1506,1507],{"class":528}," createGateway",[514,1509,532],{"class":524},[514,1511,535],{"class":520},[514,1513,538],{"class":524},[514,1515,542],{"class":541},[514,1517,545],{"class":524},[514,1519,1520],{"class":516,"line":582},[514,1521,579],{"emptyLinePlaceholder":578},[514,1523,1524,1526,1529,1531,1533,1535,1538,1541,1543],{"class":516,"line":618},[514,1525,1230],{"class":598},[514,1527,1528],{"class":528}," gateway ",[514,1530,1236],{"class":524},[514,1532,1507],{"class":591},[514,1534,595],{"class":528},[514,1536,1537],{"class":524},"{",[514,1539,1540],{"class":524}," ...",[514,1542,532],{"class":524},[514,1544,638],{"class":528},[514,1546,1547,1549,1552,1554,1556],{"class":516,"line":641},[514,1548,1230],{"class":598},[514,1550,1551],{"class":528}," ai ",[514,1553,1236],{"class":524},[514,1555,555],{"class":591},[514,1557,1241],{"class":528},[514,1559,1560,1562,1565,1567,1570,1572,1574,1576,1578],{"class":516,"line":660},[514,1561,1230],{"class":598},[514,1563,1564],{"class":528}," base ",[514,1566,1236],{"class":524},[514,1568,1569],{"class":591}," gateway",[514,1571,595],{"class":528},[514,1573,703],{"class":524},[514,1575,706],{"class":541},[514,1577,703],{"class":524},[514,1579,638],{"class":528},[514,1581,1582,1584,1587,1589,1591,1593,1595,1597,1600,1603,1605,1607,1610,1612,1614,1616,1619,1621,1623,1626,1628,1630],{"class":516,"line":665},[514,1583,1230],{"class":598},[514,1585,1586],{"class":528}," model ",[514,1588,1236],{"class":524},[514,1590,646],{"class":528},[514,1592,486],{"class":524},[514,1594,698],{"class":591},[514,1596,595],{"class":528},[514,1598,1599],{"class":591},"withSupermemory",[514,1601,1602],{"class":528},"(base",[514,1604,558],{"class":524},[514,1606,538],{"class":524},[514,1608,1609],{"class":541},"your-org-id",[514,1611,703],{"class":524},[514,1613,558],{"class":524},[514,1615,525],{"class":524},[514,1617,1618],{"class":633}," mode",[514,1620,691],{"class":524},[514,1622,538],{"class":524},[514,1624,1625],{"class":541},"full",[514,1627,703],{"class":524},[514,1629,532],{"class":524},[514,1631,1632],{"class":528},"))\n",[454,1634,1635,1636,1639,1640,691],{},"For explicit middleware composition, use ",[457,1637,1638],{},"createAIMiddleware"," to get the raw middleware and compose it yourself via ",[457,1641,1642],{},"wrapLanguageModel",[504,1644,1646],{"className":506,"code":1645,"filename":1201,"language":509,"meta":510,"style":510},"import { createAIMiddleware } from 'evlog\u002Fai'\nimport { wrapLanguageModel } from 'ai'\n\nconst model = wrapLanguageModel({\n  model: base,\n  middleware: [createAIMiddleware(log, { toolInputs: true }), otherMiddleware],\n})\n",[457,1647,1648,1667,1686,1690,1704,1715,1752],{"__ignoreMap":510},[514,1649,1650,1652,1654,1657,1659,1661,1663,1665],{"class":516,"line":517},[514,1651,521],{"class":520},[514,1653,525],{"class":524},[514,1655,1656],{"class":528}," createAIMiddleware",[514,1658,532],{"class":524},[514,1660,535],{"class":520},[514,1662,538],{"class":524},[514,1664,570],{"class":541},[514,1666,545],{"class":524},[514,1668,1669,1671,1673,1676,1678,1680,1682,1684],{"class":516,"line":548},[514,1670,521],{"class":520},[514,1672,525],{"class":524},[514,1674,1675],{"class":528}," wrapLanguageModel",[514,1677,532],{"class":524},[514,1679,535],{"class":520},[514,1681,538],{"class":524},[514,1683,542],{"class":541},[514,1685,545],{"class":524},[514,1687,1688],{"class":516,"line":575},[514,1689,579],{"emptyLinePlaceholder":578},[514,1691,1692,1694,1696,1698,1700,1702],{"class":516,"line":582},[514,1693,1230],{"class":598},[514,1695,1586],{"class":528},[514,1697,1236],{"class":524},[514,1699,1675],{"class":591},[514,1701,595],{"class":528},[514,1703,682],{"class":524},[514,1705,1706,1708,1710,1713],{"class":516,"line":618},[514,1707,1267],{"class":633},[514,1709,691],{"class":524},[514,1711,1712],{"class":528}," base",[514,1714,713],{"class":524},[514,1716,1717,1720,1722,1724,1726,1729,1731,1733,1736,1738,1741,1743,1745,1747,1750],{"class":516,"line":641},[514,1718,1719],{"class":633},"  middleware",[514,1721,691],{"class":524},[514,1723,755],{"class":528},[514,1725,1638],{"class":591},[514,1727,1728],{"class":528},"(log",[514,1730,558],{"class":524},[514,1732,525],{"class":524},[514,1734,1735],{"class":633}," toolInputs",[514,1737,691],{"class":524},[514,1739,1063],{"class":1740},"sfNiH",[514,1742,532],{"class":524},[514,1744,609],{"class":528},[514,1746,558],{"class":524},[514,1748,1749],{"class":528}," otherMiddleware]",[514,1751,713],{"class":524},[514,1753,1754,1756],{"class":516,"line":660},[514,1755,815],{"class":524},[514,1757,638],{"class":528},[454,1759,1760,1762,1763,1765,1766,1768,1769,1772,1773,1775,1776,1778],{},[457,1761,1638],{}," returns the same middleware that ",[457,1764,459],{}," uses internally. The difference: ",[457,1767,1638],{}," does not include ",[457,1770,1771],{},"captureEmbed"," (embedding models don't use middleware). Use ",[457,1774,459],{}," for the full API, ",[457,1777,1638],{}," when you need explicit middleware ordering.",[1780,1781,1782],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}",{"title":510,"searchDepth":548,"depth":548,"links":1784},[1785,1786,1787,1788],{"id":490,"depth":548,"text":491},{"id":1193,"depth":548,"text":1194},{"id":1309,"depth":548,"text":1310},{"id":1446,"depth":548,"text":1447},"Add tool execution timing and total wall time with createEvlogIntegration. Compose with other middleware like supermemory or guardrails.","md",[1792,1795],{"label":36,"icon":39,"to":266,"color":1793,"variant":1794},"neutral","subtle",{"label":1796,"icon":272,"to":270,"color":1793,"variant":1794},"Usage Patterns",{},{"title":284,"icon":287},{"title":449,"description":1789},"ApjuZE16gI2-3zO7M-DWTKAE8_YFhNTpIAv81zxJBRc",[1802,1804],{"title":279,"path":280,"stem":281,"description":1803,"icon":282,"children":-1},"Read AI metadata from your handler — persist it, surface it to end-users, bill against it, or stream incremental progress to the client.",{"title":36,"path":295,"stem":296,"description":1805,"icon":39,"children":-1},"Automatically identify users on every request. Every wide event includes who made the request — userId, user profile, and session metadata — with zero manual work.",1784202387305]