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timing:",[577,895,900],{"className":896,"code":897,"filename":898,"language":899,"meta":583,"style":583},"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 Event","json",[530,901,902,906,920,939,954,975,995,1011,1027,1043,1075,1089,1139,1184,1189,1205,1221,1237,1252,1258],{"__ignoreMap":583},[587,903,904],{"class":589,"line":590},[587,905,755],{"class":597},[587,907,908,911,913,916,918],{"class":589,"line":621},[587,909,910],{"class":597},"  \"",[587,912,615],{"class":671},[587,914,915],{"class":597},"\"",[587,917,764],{"class":597},[587,919,688],{"class":597},[587,921,922,925,929,931,933,937],{"class":589,"line":648},[587,923,924],{"class":597},"    \"",[587,926,928],{"class":927},"sBMFI","calls",[587,930,915],{"class":597},[587,932,764],{"class":597},[587,934,936],{"class":935},"sbssI"," 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],\n",[587,1190,1191,1193,1196,1198,1200,1203],{"class":589,"line":857},[587,1192,924],{"class":597},[587,1194,1195],{"class":927},"totalDurationMs",[587,1197,915],{"class":597},[587,1199,764],{"class":597},[587,1201,1202],{"class":935}," 2340",[587,1204,786],{"class":597},[587,1206,1207,1209,1212,1214,1216,1219],{"class":589,"line":862},[587,1208,924],{"class":597},[587,1210,1211],{"class":927},"msToFirstChunk",[587,1213,915],{"class":597},[587,1215,764],{"class":597},[587,1217,1218],{"class":935}," 180",[587,1220,786],{"class":597},[587,1222,1223,1225,1228,1230,1232,1235],{"class":589,"line":885},[587,1224,924],{"class":597},[587,1226,1227],{"class":927},"msToFinish",[587,1229,915],{"class":597},[587,1231,764],{"class":597},[587,1233,1234],{"class":935}," 2100",[587,1236,786],{"class":597},[587,1238,1240,1242,1245,1247,1249],{"class":589,"line":1239},18,[587,1241,924],{"class":597},[587,1243,1244],{"class":927},"tokensPerSecond",[587,1246,915],{"class":597},[587,1248,764],{"class":597},[587,1250,1251],{"class":935}," 380\n",[587,1253,1255],{"class":589,"line":1254},19,[587,1256,1257],{"class":597},"  }\n",[587,1259,1261],{"class":589,"line":1260},20,[587,1262,1263],{"class":597},"}\n",[561,1265,1267],{"id":1266},"standalone-without-middleware","Standalone (without middleware)",[527,1269,1270],{},"If your model is already wrapped (e.g. by another middleware), pass the request logger directly:",[577,1272,1275],{"className":579,"code":1273,"filename":1274,"language":582,"meta":583,"style":583},"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",[530,1276,1277,1295,1299,1315,1319,1336,1348,1357,1369,1374],{"__ignoreMap":583},[587,1278,1279,1281,1283,1285,1287,1289,1291,1293],{"class":589,"line":590},[587,1280,594],{"class":593},[587,1282,598],{"class":597},[587,1284,634],{"class":601},[587,1286,605],{"class":597},[587,1288,608],{"class":593},[587,1290,611],{"class":597},[587,1292,643],{"class":614},[587,1294,618],{"class":597},[587,1296,1297],{"class":589,"line":621},[587,1298,652],{"emptyLinePlaceholder":651},[587,1300,1301,1304,1307,1310,1312],{"class":589,"line":648},[587,1302,1303],{"class":671},"const",[587,1305,1306],{"class":601}," integration ",[587,1308,1309],{"class":597},"=",[587,1311,634],{"class":664},[587,1313,1314],{"class":601},"(log)\n",[587,1316,1317],{"class":589,"line":655},[587,1318,652],{"emptyLinePlaceholder":651},[587,1320,1321,1323,1326,1328,1330,1332,1334],{"class":589,"line":691},[587,1322,1303],{"class":671},[587,1324,1325],{"class":601}," result ",[587,1327,1309],{"class":597},[587,1329,748],{"class":593},[587,1331,602],{"class":664},[587,1333,668],{"class":601},[587,1335,755],{"class":597},[587,1337,1338,1341,1343,1346],{"class":589,"line":714},[587,1339,1340],{"class":706},"  model",[587,1342,764],{"class":597},[587,1344,1345],{"class":601}," somePreWrappedModel",[587,1347,786],{"class":597},[587,1349,1350,1353,1355],{"class":589,"line":733},[587,1351,1352],{"class":706},"  telemetry",[587,1354,764],{"class":597},[587,1356,688],{"class":597},[587,1358,1359,1362,1364,1367],{"class":589,"line":738},[587,1360,1361],{"class":706},"    integrations",[587,1363,764],{"class":597},[587,1365,1366],{"class":601}," [integration]",[587,1368,786],{"class":597},[587,1370,1371],{"class":589,"line":758},[587,1372,1373],{"class":597},"  },\n",[587,1375,1376,1378],{"class":589,"line":789},[587,1377,888],{"class":597},[587,1379,711],{"class":601},[561,1381,1383],{"id":1382},"what-the-integration-captures","What the integration captures",[1385,1386,1387,1403],"table",{},[1388,1389,1390],"thead",{},[1391,1392,1393,1397,1400],"tr",{},[1394,1395,1396],"th",{},"Data",[1394,1398,1399],{},"Source",[1394,1401,1402],{},"Description",[1404,1405,1406,1439,1461,1484,1498],"tbody",{},[1391,1407,1408,1414,1424],{},[1409,1410,1411],"td",{},[530,1412,1413],{},"ai.tools[]",[1409,1415,1416,1419,1420,1423],{},[530,1417,1418],{},"onToolExecutionEnd"," (v7) \u002F ",[530,1421,1422],{},"onToolCallFinish"," (v6)",[1409,1425,1426,1427,1429,1430,1429,1432,1434,1435,1438],{},"Per-tool ",[530,1428,1098],{},", ",[530,1431,1115],{},[530,1433,1129],{},", and ",[530,1436,1437],{},"error"," (if failed)",[1391,1440,1441,1446,1458],{},[1409,1442,1443],{},[530,1444,1445],{},"ai.totalDurationMs",[1409,1447,1448,1451,1452,1419,1455,1423],{},[530,1449,1450],{},"onStart"," → ",[530,1453,1454],{},"onEnd",[530,1456,1457],{},"onFinish",[1409,1459,1460],{},"Total wall time from generation start to completion",[1391,1462,1463,1468,1473],{},[1409,1464,1465],{},[530,1466,1467],{},"ai.embedding",[1409,1469,1470,1472],{},[530,1471,550],{}," (v7)",[1409,1474,1475,1476,1479,1480,1483],{},"Auto-captured from ",[530,1477,1478],{},"embed()"," \u002F ",[530,1481,1482],{},"embedMany()"," when telemetry is enabled",[1391,1485,1486,1491,1495],{},[1409,1487,1488],{},[530,1489,1490],{},"ai.finishReason: 'abort'",[1409,1492,1493,1472],{},[530,1494,554],{},[1409,1496,1497],{},"Set when a streaming generation is aborted",[1391,1499,1500,1505,1511],{},[1409,1501,1502],{},[530,1503,1504],{},"ai.error",[1409,1506,1507,1479,1509,1472],{},[530,1508,554],{},[530,1510,558],{},[1409,1512,1513],{},"Abort reason or unrecoverable generation error",[527,1515,1516],{},"The middleware captures tokens, model info, and streaming metrics. The integration captures tool execution timing. Together, they give you complete AI observability.",[561,1518,1520],{"id":1519},"composability","Composability",[527,1522,1523,1526,1527,764],{},[530,1524,1525],{},"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 ",[530,1528,1525],{},[577,1530,1532],{"className":579,"code":1531,"filename":1274,"language":582,"meta":583,"style":583},"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",[530,1533,1534,1552,1572,1591,1595,1618,1631,1653],{"__ignoreMap":583},[587,1535,1536,1538,1540,1542,1544,1546,1548,1550],{"class":589,"line":590},[587,1537,594],{"class":593},[587,1539,598],{"class":597},[587,1541,628],{"class":601},[587,1543,605],{"class":597},[587,1545,608],{"class":593},[587,1547,611],{"class":597},[587,1549,643],{"class":614},[587,1551,618],{"class":597},[587,1553,1554,1556,1558,1561,1563,1565,1567,1570],{"class":589,"line":621},[587,1555,594],{"class":593},[587,1557,598],{"class":597},[587,1559,1560],{"class":601}," withSupermemory",[587,1562,605],{"class":597},[587,1564,608],{"class":593},[587,1566,611],{"class":597},[587,1568,1569],{"class":614},"@supermemory\u002Ftools\u002Fai-sdk",[587,1571,618],{"class":597},[587,1573,1574,1576,1578,1581,1583,1585,1587,1589],{"class":589,"line":648},[587,1575,594],{"class":593},[587,1577,598],{"class":597},[587,1579,1580],{"class":601}," createGateway",[587,1582,605],{"class":597},[587,1584,608],{"class":593},[587,1586,611],{"class":597},[587,1588,615],{"class":614},[587,1590,618],{"class":597},[587,1592,1593],{"class":589,"line":655},[587,1594,652],{"emptyLinePlaceholder":651},[587,1596,1597,1599,1602,1604,1606,1608,1611,1614,1616],{"class":589,"line":691},[587,1598,1303],{"class":671},[587,1600,1601],{"class":601}," gateway ",[587,1603,1309],{"class":597},[587,1605,1580],{"class":664},[587,1607,668],{"class":601},[587,1609,1610],{"class":597},"{",[587,1612,1613],{"class":597}," ...",[587,1615,605],{"class":597},[587,1617,711],{"class":601},[587,1619,1620,1622,1625,1627,1629],{"class":589,"line":714},[587,1621,1303],{"class":671},[587,1623,1624],{"class":601}," ai ",[587,1626,1309],{"class":597},[587,1628,628],{"class":664},[587,1630,1314],{"class":601},[587,1632,1633,1635,1638,1640,1643,1645,1647,1649,1651],{"class":589,"line":733},[587,1634,1303],{"class":671},[587,1636,1637],{"class":601}," base ",[587,1639,1309],{"class":597},[587,1641,1642],{"class":664}," gateway",[587,1644,668],{"class":601},[587,1646,776],{"class":597},[587,1648,779],{"class":614},[587,1650,776],{"class":597},[587,1652,711],{"class":601},[587,1654,1655,1657,1660,1662,1664,1666,1668,1670,1673,1676,1678,1680,1683,1685,1687,1689,1692,1694,1696,1699,1701,1703],{"class":589,"line":738},[587,1656,1303],{"class":671},[587,1658,1659],{"class":601}," model ",[587,1661,1309],{"class":597},[587,1663,719],{"class":601},[587,1665,559],{"class":597},[587,1667,771],{"class":664},[587,1669,668],{"class":601},[587,1671,1672],{"class":664},"withSupermemory",[587,1674,1675],{"class":601},"(base",[587,1677,631],{"class":597},[587,1679,611],{"class":597},[587,1681,1682],{"class":614},"your-org-id",[587,1684,776],{"class":597},[587,1686,631],{"class":597},[587,1688,598],{"class":597},[587,1690,1691],{"class":706}," mode",[587,1693,764],{"class":597},[587,1695,611],{"class":597},[587,1697,1698],{"class":614},"full",[587,1700,776],{"class":597},[587,1702,605],{"class":597},[587,1704,1705],{"class":601},"))\n",[527,1707,1708,1709,1712,1713,764],{},"For explicit middleware composition, use ",[530,1710,1711],{},"createAIMiddleware"," to get the raw middleware and compose it yourself via ",[530,1714,1715],{},"wrapLanguageModel",[577,1717,1719],{"className":579,"code":1718,"filename":1274,"language":582,"meta":583,"style":583},"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",[530,1720,1721,1740,1759,1763,1777,1788,1825],{"__ignoreMap":583},[587,1722,1723,1725,1727,1730,1732,1734,1736,1738],{"class":589,"line":590},[587,1724,594],{"class":593},[587,1726,598],{"class":597},[587,1728,1729],{"class":601}," createAIMiddleware",[587,1731,605],{"class":597},[587,1733,608],{"class":593},[587,1735,611],{"class":597},[587,1737,643],{"class":614},[587,1739,618],{"class":597},[587,1741,1742,1744,1746,1749,1751,1753,1755,1757],{"class":589,"line":621},[587,1743,594],{"class":593},[587,1745,598],{"class":597},[587,1747,1748],{"class":601}," wrapLanguageModel",[587,1750,605],{"class":597},[587,1752,608],{"class":593},[587,1754,611],{"class":597},[587,1756,615],{"class":614},[587,1758,618],{"class":597},[587,1760,1761],{"class":589,"line":648},[587,1762,652],{"emptyLinePlaceholder":651},[587,1764,1765,1767,1769,1771,1773,1775],{"class":589,"line":655},[587,1766,1303],{"class":671},[587,1768,1659],{"class":601},[587,1770,1309],{"class":597},[587,1772,1748],{"class":664},[587,1774,668],{"class":601},[587,1776,755],{"class":597},[587,1778,1779,1781,1783,1786],{"class":589,"line":691},[587,1780,1340],{"class":706},[587,1782,764],{"class":597},[587,1784,1785],{"class":601}," base",[587,1787,786],{"class":597},[587,1789,1790,1793,1795,1797,1799,1802,1804,1806,1809,1811,1814,1816,1818,1820,1823],{"class":589,"line":714},[587,1791,1792],{"class":706},"  middleware",[587,1794,764],{"class":597},[587,1796,828],{"class":601},[587,1798,1711],{"class":664},[587,1800,1801],{"class":601},"(log",[587,1803,631],{"class":597},[587,1805,598],{"class":597},[587,1807,1808],{"class":706}," toolInputs",[587,1810,764],{"class":597},[587,1812,1136],{"class":1813},"sfNiH",[587,1815,605],{"class":597},[587,1817,682],{"class":601},[587,1819,631],{"class":597},[587,1821,1822],{"class":601}," otherMiddleware]",[587,1824,786],{"class":597},[587,1826,1827,1829],{"class":589,"line":733},[587,1828,888],{"class":597},[587,1830,711],{"class":601},[527,1832,1833,1835,1836,1838,1839,1841,1842,1845,1846,1848,1849,1851],{},[530,1834,1711],{}," returns the same middleware that ",[530,1837,532],{}," uses internally. The difference: ",[530,1840,1711],{}," does not include ",[530,1843,1844],{},"captureEmbed"," (embedding models don't use middleware). Use ",[530,1847,532],{}," for the full API, ",[530,1850,1711],{}," when you need explicit middleware ordering.",[1853,1854,1855],"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":583,"searchDepth":621,"depth":621,"links":1857},[1858,1859,1860,1861],{"id":563,"depth":621,"text":564},{"id":1266,"depth":621,"text":1267},{"id":1382,"depth":621,"text":1383},{"id":1519,"depth":621,"text":1520},"Add tool execution timing and total wall time with createEvlogIntegration. Compose with other middleware like supermemory or guardrails.","md",[1865,1868],{"label":36,"icon":39,"to":323,"color":1866,"variant":1867},"neutral","subtle",{"label":1869,"icon":329,"to":327,"color":1866,"variant":1867},"Usage Patterns",{},{"title":341,"icon":344},{"title":522,"description":1862},"ljndFprj3-OIEQ_L4eF7jVQc3kYReBFcANknnWBSVgM",[1875,1877],{"title":336,"path":337,"stem":338,"description":1876,"icon":339,"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":352,"stem":353,"description":1878,"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.",1785613615019]