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This enables:",[536,537,538,551,561],"ul",{},[539,540,541,545,546,550],"li",{},[542,543,544],"strong",{},"AI agent integration"," - point a skill to ",[547,548,549],"code",{},".evlog\u002Flogs\u002F"," to parse structured logs for debugging and pattern analysis",[539,552,553,556,557,560],{},[542,554,555],{},"Local dev debugging"," - persistent log history without scrolling the terminal (",[547,558,559],{},"tail -f .evlog\u002Flogs\u002F2026-03-14.jsonl",")",[539,562,563,566],{},[542,564,565],{},"Production backup"," - combine with a network drain (Axiom, OTLP) for local fallback",[568,569,572,575,599],"prompt",{":actions":570,"description":571,"icon":209},"[\"copy\",\"cursor\",\"claude\"]","Add the file system drain adapter",[532,573,574],{},"Add the file system drain adapter to write evlog wide events locally as NDJSON files.",[576,577,578,581,584,587,590,593,596],"ol",{},[539,579,580],{},"Identify which framework I'm using and follow its evlog integration pattern",[539,582,583],{},"Install evlog if not already installed",[539,585,586],{},"Import createFsDrain from 'evlog\u002Ffs'",[539,588,589],{},"Wire createFsDrain() into my framework's drain configuration",[539,591,592],{},"Logs are written to .evlog\u002Flogs\u002F by default (one file per day, auto .gitignore)",[539,594,595],{},"Optionally configure dir, maxFiles, maxSizePerFile, or pretty options",[539,597,598],{},"Test by triggering a request and checking .evlog\u002Flogs\u002F*.jsonl",[532,600,601,602,608,609],{},"Adapter docs: ",[603,604,605],"a",{"href":605,"rel":606},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs",[607],"nofollow","\nFramework setup: ",[603,610,611],{"href":611,"rel":612},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Foverview",[607],[614,615,20],"h2",{"id":616},"installation",[532,618,619],{},"The File System adapter comes bundled with evlog:",[621,622,628],"pre",{"className":623,"code":624,"filename":625,"language":626,"meta":627,"style":627},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { createFsDrain } from 'evlog\u002Ffs'\n","src\u002Findex.ts","typescript","",[547,629,630],{"__ignoreMap":627},[631,632,635,639,643,647,650,653,656,660],"span",{"class":633,"line":634},"line",1,[631,636,638],{"class":637},"s7zQu","import",[631,640,642],{"class":641},"sMK4o"," {",[631,644,646],{"class":645},"sTEyZ"," createFsDrain",[631,648,649],{"class":641}," }",[631,651,652],{"class":637}," from",[631,654,655],{"class":641}," '",[631,657,659],{"class":658},"sfazB","evlog\u002Ffs",[631,661,662],{"class":641},"'\n",[614,664,25],{"id":665},"quick-start",[532,667,668],{},"No credentials or environment variables needed. Just wire the drain to your framework:",[670,671,672,786,917,934,996,1050,1109,1163,1216],"code-group",{},[621,673,676],{"className":623,"code":674,"filename":675,"language":626,"meta":627,"style":627},"\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\nimport { createFsDrain } from 'evlog\u002Ffs'\n\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:drain', createFsDrain())\n})\n","Nuxt \u002F Nitro",[547,677,678,684,703,710,741,777],{"__ignoreMap":627},[631,679,680],{"class":633,"line":634},[631,681,683],{"class":682},"sHwdD","\u002F\u002F server\u002Fplugins\u002Fevlog-drain.ts\n",[631,685,687,689,691,693,695,697,699,701],{"class":633,"line":686},2,[631,688,638],{"class":637},[631,690,642],{"class":641},[631,692,646],{"class":645},[631,694,649],{"class":641},[631,696,652],{"class":637},[631,698,655],{"class":641},[631,700,659],{"class":658},[631,702,662],{"class":641},[631,704,706],{"class":633,"line":705},3,[631,707,709],{"emptyLinePlaceholder":708},true,"\n",[631,711,713,716,719,723,726,728,732,734,738],{"class":633,"line":712},4,[631,714,715],{"class":637},"export",[631,717,718],{"class":637}," default",[631,720,722],{"class":721},"s2Zo4"," defineNitroPlugin",[631,724,725],{"class":645},"(",[631,727,725],{"class":641},[631,729,731],{"class":730},"sHdIc","nitroApp",[631,733,560],{"class":641},[631,735,737],{"class":736},"spNyl"," =>",[631,739,740],{"class":641}," {\n",[631,742,744,747,750,753,755,758,761,764,767,769,772,774],{"class":633,"line":743},5,[631,745,746],{"class":645},"  nitroApp",[631,748,749],{"class":641},".",[631,751,752],{"class":645},"hooks",[631,754,749],{"class":641},[631,756,757],{"class":721},"hook",[631,759,725],{"class":760},"swJcz",[631,762,763],{"class":641},"'",[631,765,766],{"class":658},"evlog:drain",[631,768,763],{"class":641},[631,770,771],{"class":641},",",[631,773,646],{"class":721},[631,775,776],{"class":760},"())\n",[631,778,780,783],{"class":633,"line":779},6,[631,781,782],{"class":641},"}",[631,784,785],{"class":645},")\n",[621,787,789],{"className":623,"code":788,"filename":235,"language":626,"meta":627,"style":627},"\u002F\u002F lib\u002Fevlog.ts — Node.js routes only; keep evlog\u002Ffs out of root instrumentation.ts\nimport { createEvlog } from 'evlog\u002Fnext'\nimport { createFsDrain } from 'evlog\u002Ffs'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  drain: createFsDrain(),\n})\n",[547,790,791,796,816,834,838,877,895,910],{"__ignoreMap":627},[631,792,793],{"class":633,"line":634},[631,794,795],{"class":682},"\u002F\u002F lib\u002Fevlog.ts — Node.js routes only; keep evlog\u002Ffs out of root instrumentation.ts\n",[631,797,798,800,802,805,807,809,811,814],{"class":633,"line":686},[631,799,638],{"class":637},[631,801,642],{"class":641},[631,803,804],{"class":645}," createEvlog",[631,806,649],{"class":641},[631,808,652],{"class":637},[631,810,655],{"class":641},[631,812,813],{"class":658},"evlog\u002Fnext",[631,815,662],{"class":641},[631,817,818,820,822,824,826,828,830,832],{"class":633,"line":705},[631,819,638],{"class":637},[631,821,642],{"class":641},[631,823,646],{"class":645},[631,825,649],{"class":641},[631,827,652],{"class":637},[631,829,655],{"class":641},[631,831,659],{"class":658},[631,833,662],{"class":641},[631,835,836],{"class":633,"line":712},[631,837,709],{"emptyLinePlaceholder":708},[631,839,840,842,845,847,850,852,855,857,860,862,865,867,870,872,874],{"class":633,"line":743},[631,841,715],{"class":637},[631,843,844],{"class":736}," const",[631,846,642],{"class":641},[631,848,849],{"class":645}," withEvlog",[631,851,771],{"class":641},[631,853,854],{"class":645}," useLogger",[631,856,771],{"class":641},[631,858,859],{"class":645}," log",[631,861,771],{"class":641},[631,863,864],{"class":645}," createError ",[631,866,782],{"class":641},[631,868,869],{"class":641}," =",[631,871,804],{"class":721},[631,873,725],{"class":645},[631,875,876],{"class":641},"{\n",[631,878,879,882,885,887,890,892],{"class":633,"line":779},[631,880,881],{"class":760},"  service",[631,883,884],{"class":641},":",[631,886,655],{"class":641},[631,888,889],{"class":658},"my-app",[631,891,763],{"class":641},[631,893,894],{"class":641},",\n",[631,896,898,901,903,905,908],{"class":633,"line":897},7,[631,899,900],{"class":760},"  drain",[631,902,884],{"class":641},[631,904,646],{"class":721},[631,906,907],{"class":645},"()",[631,909,894],{"class":641},[631,911,913,915],{"class":633,"line":912},8,[631,914,782],{"class":641},[631,916,785],{"class":645},[918,919,921,922,925,926,929,930,933],"callout",{"color":920,"icon":13},"info","The FS adapter requires Node.js (",[547,923,924],{},"node:fs","). On the Edge runtime it logs a one-time ",[547,927,928],{},"[evlog\u002Ffs]"," warning and skips writes. Use ",[547,931,932],{},"evlog\u002Fmemory"," or an HTTP adapter for Edge routes.",[621,935,937],{"className":623,"code":936,"filename":265,"language":626,"meta":627,"style":627},"import { createFsDrain } from 'evlog\u002Ffs'\n\napp.use(evlog({ drain: createFsDrain() }))\n",[547,938,939,957,961],{"__ignoreMap":627},[631,940,941,943,945,947,949,951,953,955],{"class":633,"line":634},[631,942,638],{"class":637},[631,944,642],{"class":641},[631,946,646],{"class":645},[631,948,649],{"class":641},[631,950,652],{"class":637},[631,952,655],{"class":641},[631,954,659],{"class":658},[631,956,662],{"class":641},[631,958,959],{"class":633,"line":686},[631,960,709],{"emptyLinePlaceholder":708},[631,962,963,966,968,971,973,976,978,981,984,986,988,991,993],{"class":633,"line":705},[631,964,965],{"class":645},"app",[631,967,749],{"class":641},[631,969,970],{"class":721},"use",[631,972,725],{"class":645},[631,974,975],{"class":721},"evlog",[631,977,725],{"class":645},[631,979,980],{"class":641},"{",[631,982,983],{"class":760}," drain",[631,985,884],{"class":641},[631,987,646],{"class":721},[631,989,990],{"class":645},"() ",[631,992,782],{"class":641},[631,994,995],{"class":645},"))\n",[621,997,998],{"className":623,"code":936,"filename":260,"language":626,"meta":627,"style":627},[547,999,1000,1018,1022],{"__ignoreMap":627},[631,1001,1002,1004,1006,1008,1010,1012,1014,1016],{"class":633,"line":634},[631,1003,638],{"class":637},[631,1005,642],{"class":641},[631,1007,646],{"class":645},[631,1009,649],{"class":641},[631,1011,652],{"class":637},[631,1013,655],{"class":641},[631,1015,659],{"class":658},[631,1017,662],{"class":641},[631,1019,1020],{"class":633,"line":686},[631,1021,709],{"emptyLinePlaceholder":708},[631,1023,1024,1026,1028,1030,1032,1034,1036,1038,1040,1042,1044,1046,1048],{"class":633,"line":705},[631,1025,965],{"class":645},[631,1027,749],{"class":641},[631,1029,970],{"class":721},[631,1031,725],{"class":645},[631,1033,975],{"class":721},[631,1035,725],{"class":645},[631,1037,980],{"class":641},[631,1039,983],{"class":760},[631,1041,884],{"class":641},[631,1043,646],{"class":721},[631,1045,990],{"class":645},[631,1047,782],{"class":641},[631,1049,995],{"class":645},[621,1051,1053],{"className":623,"code":1052,"filename":270,"language":626,"meta":627,"style":627},"import { createFsDrain } from 'evlog\u002Ffs'\n\nawait app.register(evlog, { drain: createFsDrain() })\n",[547,1054,1055,1073,1077],{"__ignoreMap":627},[631,1056,1057,1059,1061,1063,1065,1067,1069,1071],{"class":633,"line":634},[631,1058,638],{"class":637},[631,1060,642],{"class":641},[631,1062,646],{"class":645},[631,1064,649],{"class":641},[631,1066,652],{"class":637},[631,1068,655],{"class":641},[631,1070,659],{"class":658},[631,1072,662],{"class":641},[631,1074,1075],{"class":633,"line":686},[631,1076,709],{"emptyLinePlaceholder":708},[631,1078,1079,1082,1085,1087,1090,1093,1095,1097,1099,1101,1103,1105,1107],{"class":633,"line":705},[631,1080,1081],{"class":637},"await",[631,1083,1084],{"class":645}," app",[631,1086,749],{"class":641},[631,1088,1089],{"class":721},"register",[631,1091,1092],{"class":645},"(evlog",[631,1094,771],{"class":641},[631,1096,642],{"class":641},[631,1098,983],{"class":760},[631,1100,884],{"class":641},[631,1102,646],{"class":721},[631,1104,990],{"class":645},[631,1106,782],{"class":641},[631,1108,785],{"class":645},[621,1110,1111],{"className":623,"code":936,"filename":275,"language":626,"meta":627,"style":627},[547,1112,1113,1131,1135],{"__ignoreMap":627},[631,1114,1115,1117,1119,1121,1123,1125,1127,1129],{"class":633,"line":634},[631,1116,638],{"class":637},[631,1118,642],{"class":641},[631,1120,646],{"class":645},[631,1122,649],{"class":641},[631,1124,652],{"class":637},[631,1126,655],{"class":641},[631,1128,659],{"class":658},[631,1130,662],{"class":641},[631,1132,1133],{"class":633,"line":686},[631,1134,709],{"emptyLinePlaceholder":708},[631,1136,1137,1139,1141,1143,1145,1147,1149,1151,1153,1155,1157,1159,1161],{"class":633,"line":705},[631,1138,965],{"class":645},[631,1140,749],{"class":641},[631,1142,970],{"class":721},[631,1144,725],{"class":645},[631,1146,975],{"class":721},[631,1148,725],{"class":645},[631,1150,980],{"class":641},[631,1152,983],{"class":760},[631,1154,884],{"class":641},[631,1156,646],{"class":721},[631,1158,990],{"class":645},[631,1160,782],{"class":641},[631,1162,995],{"class":645},[621,1164,1166],{"className":623,"code":1165,"filename":255,"language":626,"meta":627,"style":627},"import { createFsDrain } from 'evlog\u002Ffs'\n\nEvlogModule.forRoot({ drain: createFsDrain() })\n",[547,1167,1168,1186,1190],{"__ignoreMap":627},[631,1169,1170,1172,1174,1176,1178,1180,1182,1184],{"class":633,"line":634},[631,1171,638],{"class":637},[631,1173,642],{"class":641},[631,1175,646],{"class":645},[631,1177,649],{"class":641},[631,1179,652],{"class":637},[631,1181,655],{"class":641},[631,1183,659],{"class":658},[631,1185,662],{"class":641},[631,1187,1188],{"class":633,"line":686},[631,1189,709],{"emptyLinePlaceholder":708},[631,1191,1192,1195,1197,1200,1202,1204,1206,1208,1210,1212,1214],{"class":633,"line":705},[631,1193,1194],{"class":645},"EvlogModule",[631,1196,749],{"class":641},[631,1198,1199],{"class":721},"forRoot",[631,1201,725],{"class":645},[631,1203,980],{"class":641},[631,1205,983],{"class":760},[631,1207,884],{"class":641},[631,1209,646],{"class":721},[631,1211,990],{"class":645},[631,1213,782],{"class":641},[631,1215,785],{"class":645},[621,1217,1219],{"className":623,"code":1218,"filename":290,"language":626,"meta":627,"style":627},"import { createFsDrain } from 'evlog\u002Ffs'\n\ninitLogger({ drain: createFsDrain() })\n",[547,1220,1221,1239,1243],{"__ignoreMap":627},[631,1222,1223,1225,1227,1229,1231,1233,1235,1237],{"class":633,"line":634},[631,1224,638],{"class":637},[631,1226,642],{"class":641},[631,1228,646],{"class":645},[631,1230,649],{"class":641},[631,1232,652],{"class":637},[631,1234,655],{"class":641},[631,1236,659],{"class":658},[631,1238,662],{"class":641},[631,1240,1241],{"class":633,"line":686},[631,1242,709],{"emptyLinePlaceholder":708},[631,1244,1245,1248,1250,1252,1254,1256,1258,1260,1262],{"class":633,"line":705},[631,1246,1247],{"class":721},"initLogger",[631,1249,725],{"class":645},[631,1251,980],{"class":641},[631,1253,983],{"class":760},[631,1255,884],{"class":641},[631,1257,646],{"class":721},[631,1259,990],{"class":645},[631,1261,782],{"class":641},[631,1263,785],{"class":645},[532,1265,1266,1267,1269],{},"Logs start appearing in ",[547,1268,549],{}," immediately.",[614,1271,1273],{"id":1272},"file-structure","File Structure",[621,1275,1281],{"className":1276,"code":1278,"filename":1279,"language":1280,"meta":627},[1277],"language-text",".evlog\u002F\n  logs\u002F\n    2026-03-14.jsonl    ← one file per day\n    2026-03-13.jsonl\n    2026-03-12.jsonl\n",".evlog\u002Flogs directory layout","text",[547,1282,1278],{"__ignoreMap":627},[532,1284,1285,1286,1289],{},"Each ",[547,1287,1288],{},".jsonl"," file contains one JSON object per line (NDJSON format), making it easy to parse, grep, and stream.",[918,1291,1294,1295,1298,1299,1302,1303,1306],{"color":1292,"icon":1293},"success","i-lucide-git-branch","A ",[547,1296,1297],{},".gitignore"," is automatically created on first write, inside the ",[547,1300,1301],{},".evlog\u002F"," ancestor directory when present or in the configured ",[547,1304,1305],{},"dir"," otherwise. Log files are never committed to version control.",[614,1308,500],{"id":1309},"configuration",[1311,1312,336],"h3",{"id":1313},"options",[1315,1316,1317,1336],"table",{},[1318,1319,1320],"thead",{},[1321,1322,1323,1327,1330,1333],"tr",{},[1324,1325,1326],"th",{},"Option",[1324,1328,1329],{},"Type",[1324,1331,1332],{},"Default",[1324,1334,1335],{},"Description",[1337,1338,1339,1359,1379,1397],"tbody",{},[1321,1340,1341,1346,1351,1356],{},[1342,1343,1344],"td",{},[547,1345,1305],{},[1342,1347,1348],{},[547,1349,1350],{},"string",[1342,1352,1353],{},[547,1354,1355],{},"'.evlog\u002Flogs'",[1342,1357,1358],{},"Directory for log files",[1321,1360,1361,1366,1371,1376],{},[1342,1362,1363],{},[547,1364,1365],{},"maxFiles",[1342,1367,1368],{},[547,1369,1370],{},"number",[1342,1372,1373],{},[547,1374,1375],{},"undefined",[1342,1377,1378],{},"Max files to keep (auto-deletes oldest)",[1321,1380,1381,1386,1390,1394],{},[1342,1382,1383],{},[547,1384,1385],{},"maxSizePerFile",[1342,1387,1388],{},[547,1389,1370],{},[1342,1391,1392],{},[547,1393,1375],{},[1342,1395,1396],{},"Max bytes per file before rotating",[1321,1398,1399,1404,1409,1414],{},[1342,1400,1401],{},[547,1402,1403],{},"pretty",[1342,1405,1406],{},[547,1407,1408],{},"boolean",[1342,1410,1411],{},[547,1412,1413],{},"false",[1342,1415,1416],{},"Pretty-print JSON (multi-line, readable)",[1311,1418,1420],{"id":1419},"examples","Examples",[621,1422,1425],{"className":623,"code":1423,"filename":1424,"language":626,"meta":627,"style":627},"\u002F\u002F Keep only the last 7 days of logs\ncreateFsDrain({ maxFiles: 7 })\n\n\u002F\u002F Rotate files at 10MB, keep 30 files\ncreateFsDrain({\n  maxSizePerFile: 10 * 1024 * 1024,\n  maxFiles: 30,\n})\n\n\u002F\u002F Pretty-print for human reading\ncreateFsDrain({ pretty: true })\n\n\u002F\u002F Custom directory\ncreateFsDrain({ dir: '\u002Fvar\u002Flog\u002Fmyapp' })\n","server\u002Fplugins\u002Fevlog-drain.ts",[547,1426,1427,1432,1454,1458,1463,1471,1493,1505,1511,1516,1522,1544,1549,1555],{"__ignoreMap":627},[631,1428,1429],{"class":633,"line":634},[631,1430,1431],{"class":682},"\u002F\u002F Keep only the last 7 days of logs\n",[631,1433,1434,1437,1439,1441,1444,1446,1450,1452],{"class":633,"line":686},[631,1435,1436],{"class":721},"createFsDrain",[631,1438,725],{"class":645},[631,1440,980],{"class":641},[631,1442,1443],{"class":760}," maxFiles",[631,1445,884],{"class":641},[631,1447,1449],{"class":1448},"sbssI"," 7",[631,1451,649],{"class":641},[631,1453,785],{"class":645},[631,1455,1456],{"class":633,"line":705},[631,1457,709],{"emptyLinePlaceholder":708},[631,1459,1460],{"class":633,"line":712},[631,1461,1462],{"class":682},"\u002F\u002F Rotate files at 10MB, keep 30 files\n",[631,1464,1465,1467,1469],{"class":633,"line":743},[631,1466,1436],{"class":721},[631,1468,725],{"class":645},[631,1470,876],{"class":641},[631,1472,1473,1476,1478,1481,1484,1487,1489,1491],{"class":633,"line":779},[631,1474,1475],{"class":760},"  maxSizePerFile",[631,1477,884],{"class":641},[631,1479,1480],{"class":1448}," 10",[631,1482,1483],{"class":641}," *",[631,1485,1486],{"class":1448}," 1024",[631,1488,1483],{"class":641},[631,1490,1486],{"class":1448},[631,1492,894],{"class":641},[631,1494,1495,1498,1500,1503],{"class":633,"line":897},[631,1496,1497],{"class":760},"  maxFiles",[631,1499,884],{"class":641},[631,1501,1502],{"class":1448}," 30",[631,1504,894],{"class":641},[631,1506,1507,1509],{"class":633,"line":912},[631,1508,782],{"class":641},[631,1510,785],{"class":645},[631,1512,1514],{"class":633,"line":1513},9,[631,1515,709],{"emptyLinePlaceholder":708},[631,1517,1519],{"class":633,"line":1518},10,[631,1520,1521],{"class":682},"\u002F\u002F Pretty-print for human reading\n",[631,1523,1525,1527,1529,1531,1534,1536,1540,1542],{"class":633,"line":1524},11,[631,1526,1436],{"class":721},[631,1528,725],{"class":645},[631,1530,980],{"class":641},[631,1532,1533],{"class":760}," pretty",[631,1535,884],{"class":641},[631,1537,1539],{"class":1538},"sfNiH"," true",[631,1541,649],{"class":641},[631,1543,785],{"class":645},[631,1545,1547],{"class":633,"line":1546},12,[631,1548,709],{"emptyLinePlaceholder":708},[631,1550,1552],{"class":633,"line":1551},13,[631,1553,1554],{"class":682},"\u002F\u002F Custom directory\n",[631,1556,1558,1560,1562,1564,1567,1569,1571,1574,1576,1578],{"class":633,"line":1557},14,[631,1559,1436],{"class":721},[631,1561,725],{"class":645},[631,1563,980],{"class":641},[631,1565,1566],{"class":760}," dir",[631,1568,884],{"class":641},[631,1570,655],{"class":641},[631,1572,1573],{"class":658},"\u002Fvar\u002Flog\u002Fmyapp",[631,1575,763],{"class":641},[631,1577,649],{"class":641},[631,1579,785],{"class":645},[1311,1581,1583],{"id":1582},"file-rotation","File Rotation",[532,1585,1586,1587,1590,1591,1593],{},"By default, a new file is created each day (",[547,1588,1589],{},"2026-03-14.jsonl","). When ",[547,1592,1385],{}," is set, the adapter creates suffixed files when the current file exceeds the limit:",[621,1595,1599],{"className":1596,"code":1597,"filename":1598,"language":1280,"meta":627},[1277],".evlog\u002Flogs\u002F\n  2026-03-14.jsonl      ← base file (full)\n  2026-03-14.1.jsonl    ← first rotation\n  2026-03-14.2.jsonl    ← second rotation\n","Rotated log files",[547,1600,1597],{"__ignoreMap":627},[1311,1602,1604],{"id":1603},"cleanup","Cleanup",[532,1606,1607,1608,1610,1611,1613],{},"When ",[547,1609,1365],{}," is set, the adapter automatically deletes the oldest ",[547,1612,1288],{}," files after each write, keeping only the most recent files.",[614,1615,1617],{"id":1616},"combining-with-network-drains","Combining with Network Drains",[532,1619,1620],{},"Use the FS adapter alongside a network drain for local backup:",[621,1622,1624],{"className":623,"code":1623,"filename":1424,"language":626,"meta":627,"style":627},"import { createFsDrain } from 'evlog\u002Ffs'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\nconst fs = createFsDrain({ maxFiles: 7 })\nconst axiom = createAxiomDrain()\n\nconst drain = async (ctx) => {\n  await Promise.allSettled([fs(ctx), axiom(ctx)])\n}\n",[547,1625,1626,1644,1664,1668,1695,1709,1713,1737,1775],{"__ignoreMap":627},[631,1627,1628,1630,1632,1634,1636,1638,1640,1642],{"class":633,"line":634},[631,1629,638],{"class":637},[631,1631,642],{"class":641},[631,1633,646],{"class":645},[631,1635,649],{"class":641},[631,1637,652],{"class":637},[631,1639,655],{"class":641},[631,1641,659],{"class":658},[631,1643,662],{"class":641},[631,1645,1646,1648,1650,1653,1655,1657,1659,1662],{"class":633,"line":686},[631,1647,638],{"class":637},[631,1649,642],{"class":641},[631,1651,1652],{"class":645}," createAxiomDrain",[631,1654,649],{"class":641},[631,1656,652],{"class":637},[631,1658,655],{"class":641},[631,1660,1661],{"class":658},"evlog\u002Faxiom",[631,1663,662],{"class":641},[631,1665,1666],{"class":633,"line":705},[631,1667,709],{"emptyLinePlaceholder":708},[631,1669,1670,1673,1676,1679,1681,1683,1685,1687,1689,1691,1693],{"class":633,"line":712},[631,1671,1672],{"class":736},"const",[631,1674,1675],{"class":645}," fs ",[631,1677,1678],{"class":641},"=",[631,1680,646],{"class":721},[631,1682,725],{"class":645},[631,1684,980],{"class":641},[631,1686,1443],{"class":760},[631,1688,884],{"class":641},[631,1690,1449],{"class":1448},[631,1692,649],{"class":641},[631,1694,785],{"class":645},[631,1696,1697,1699,1702,1704,1706],{"class":633,"line":743},[631,1698,1672],{"class":736},[631,1700,1701],{"class":645}," axiom ",[631,1703,1678],{"class":641},[631,1705,1652],{"class":721},[631,1707,1708],{"class":645},"()\n",[631,1710,1711],{"class":633,"line":779},[631,1712,709],{"emptyLinePlaceholder":708},[631,1714,1715,1717,1720,1722,1725,1728,1731,1733,1735],{"class":633,"line":897},[631,1716,1672],{"class":736},[631,1718,1719],{"class":645}," drain ",[631,1721,1678],{"class":641},[631,1723,1724],{"class":736}," async",[631,1726,1727],{"class":641}," (",[631,1729,1730],{"class":730},"ctx",[631,1732,560],{"class":641},[631,1734,737],{"class":736},[631,1736,740],{"class":641},[631,1738,1739,1742,1746,1748,1751,1754,1757,1759,1761,1763,1765,1768,1770,1772],{"class":633,"line":912},[631,1740,1741],{"class":637},"  await",[631,1743,1745],{"class":1744},"sBMFI"," Promise",[631,1747,749],{"class":641},[631,1749,1750],{"class":721},"allSettled",[631,1752,1753],{"class":760},"([",[631,1755,1756],{"class":721},"fs",[631,1758,725],{"class":760},[631,1760,1730],{"class":645},[631,1762,560],{"class":760},[631,1764,771],{"class":641},[631,1766,1767],{"class":721}," axiom",[631,1769,725],{"class":760},[631,1771,1730],{"class":645},[631,1773,1774],{"class":760},")])\n",[631,1776,1777],{"class":633,"line":1513},[631,1778,1779],{"class":641},"}\n",[614,1781,1783],{"id":1782},"querying-logs","Querying Logs",[1311,1785,1787],{"id":1786},"stream-in-real-time","Stream in real-time",[621,1789,1794],{"className":1790,"code":1791,"filename":1792,"language":1793,"meta":627,"style":627},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","tail -f .evlog\u002Flogs\u002F2026-03-14.jsonl\n","Terminal","bash",[547,1795,1796],{"__ignoreMap":627},[631,1797,1798,1801,1804],{"class":633,"line":634},[631,1799,1800],{"class":1744},"tail",[631,1802,1803],{"class":658}," -f",[631,1805,1806],{"class":658}," .evlog\u002Flogs\u002F2026-03-14.jsonl\n",[1311,1808,1810],{"id":1809},"search-with-jq","Search with jq",[621,1812,1814],{"className":1790,"code":1813,"filename":1792,"language":1793,"meta":627,"style":627},"# Find errors\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.level == \"error\")'\n\n# Slow requests (duration is a formatted string like \"706ms\" or \"1.23s\")\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.duration | test(\"^[0-9.]+s\"))'\n\n# Requests by path\ncat .evlog\u002Flogs\u002F2026-03-14.jsonl | jq 'select(.path == \"\u002Fapi\u002Fcheckout\")'\n",[547,1815,1816,1821,1842,1846,1851,1868,1872,1877],{"__ignoreMap":627},[631,1817,1818],{"class":633,"line":634},[631,1819,1820],{"class":682},"# Find errors\n",[631,1822,1823,1826,1829,1832,1835,1837,1840],{"class":633,"line":686},[631,1824,1825],{"class":1744},"cat",[631,1827,1828],{"class":658}," .evlog\u002Flogs\u002F2026-03-14.jsonl",[631,1830,1831],{"class":641}," |",[631,1833,1834],{"class":1744}," jq",[631,1836,655],{"class":641},[631,1838,1839],{"class":658},"select(.level == \"error\")",[631,1841,662],{"class":641},[631,1843,1844],{"class":633,"line":705},[631,1845,709],{"emptyLinePlaceholder":708},[631,1847,1848],{"class":633,"line":712},[631,1849,1850],{"class":682},"# Slow requests (duration is a formatted string like \"706ms\" or \"1.23s\")\n",[631,1852,1853,1855,1857,1859,1861,1863,1866],{"class":633,"line":743},[631,1854,1825],{"class":1744},[631,1856,1828],{"class":658},[631,1858,1831],{"class":641},[631,1860,1834],{"class":1744},[631,1862,655],{"class":641},[631,1864,1865],{"class":658},"select(.duration | test(\"^[0-9.]+s\"))",[631,1867,662],{"class":641},[631,1869,1870],{"class":633,"line":779},[631,1871,709],{"emptyLinePlaceholder":708},[631,1873,1874],{"class":633,"line":897},[631,1875,1876],{"class":682},"# Requests by path\n",[631,1878,1879,1881,1883,1885,1887,1889,1892],{"class":633,"line":912},[631,1880,1825],{"class":1744},[631,1882,1828],{"class":658},[631,1884,1831],{"class":641},[631,1886,1834],{"class":1744},[631,1888,655],{"class":641},[631,1890,1891],{"class":658},"select(.path == \"\u002Fapi\u002Fcheckout\")",[631,1893,662],{"class":641},[1311,1895,1897],{"id":1896},"search-with-grep","Search with grep",[621,1899,1901],{"className":1790,"code":1900,"filename":1792,"language":1793,"meta":627,"style":627},"# Find all errors\ngrep '\"level\":\"error\"' .evlog\u002Flogs\u002F2026-03-14.jsonl\n\n# Find by request ID\ngrep 'req_abc123' .evlog\u002Flogs\u002F*.jsonl\n",[547,1902,1903,1908,1922,1926,1931],{"__ignoreMap":627},[631,1904,1905],{"class":633,"line":634},[631,1906,1907],{"class":682},"# Find all errors\n",[631,1909,1910,1913,1915,1918,1920],{"class":633,"line":686},[631,1911,1912],{"class":1744},"grep",[631,1914,655],{"class":641},[631,1916,1917],{"class":658},"\"level\":\"error\"",[631,1919,763],{"class":641},[631,1921,1806],{"class":658},[631,1923,1924],{"class":633,"line":705},[631,1925,709],{"emptyLinePlaceholder":708},[631,1927,1928],{"class":633,"line":712},[631,1929,1930],{"class":682},"# Find by request ID\n",[631,1932,1933,1935,1937,1940,1942,1945,1948],{"class":633,"line":743},[631,1934,1912],{"class":1744},[631,1936,655],{"class":641},[631,1938,1939],{"class":658},"req_abc123",[631,1941,763],{"class":641},[631,1943,1944],{"class":658}," .evlog\u002Flogs\u002F",[631,1946,1947],{"class":645},"*",[631,1949,1950],{"class":658},".jsonl\n",[614,1952,1954],{"id":1953},"direct-api-usage","Direct API Usage",[532,1956,1957],{},"For advanced use cases, use the lower-level write functions:",[621,1959,1961],{"className":623,"code":1960,"filename":625,"language":626,"meta":627,"style":627},"import { writeToFs, writeBatchToFs } from 'evlog\u002Ffs'\n\nawait writeToFs(event, {\n  dir: '.evlog\u002Flogs',\n  pretty: false,\n})\n\nawait writeBatchToFs(events, {\n  dir: '.evlog\u002Flogs',\n  pretty: false,\n})\n",[547,1962,1963,1987,1991,2004,2020,2032,2038,2042,2055,2069,2079],{"__ignoreMap":627},[631,1964,1965,1967,1969,1972,1974,1977,1979,1981,1983,1985],{"class":633,"line":634},[631,1966,638],{"class":637},[631,1968,642],{"class":641},[631,1970,1971],{"class":645}," writeToFs",[631,1973,771],{"class":641},[631,1975,1976],{"class":645}," writeBatchToFs",[631,1978,649],{"class":641},[631,1980,652],{"class":637},[631,1982,655],{"class":641},[631,1984,659],{"class":658},[631,1986,662],{"class":641},[631,1988,1989],{"class":633,"line":686},[631,1990,709],{"emptyLinePlaceholder":708},[631,1992,1993,1995,1997,2000,2002],{"class":633,"line":705},[631,1994,1081],{"class":637},[631,1996,1971],{"class":721},[631,1998,1999],{"class":645},"(event",[631,2001,771],{"class":641},[631,2003,740],{"class":641},[631,2005,2006,2009,2011,2013,2016,2018],{"class":633,"line":712},[631,2007,2008],{"class":760},"  dir",[631,2010,884],{"class":641},[631,2012,655],{"class":641},[631,2014,2015],{"class":658},".evlog\u002Flogs",[631,2017,763],{"class":641},[631,2019,894],{"class":641},[631,2021,2022,2025,2027,2030],{"class":633,"line":743},[631,2023,2024],{"class":760},"  pretty",[631,2026,884],{"class":641},[631,2028,2029],{"class":1538}," false",[631,2031,894],{"class":641},[631,2033,2034,2036],{"class":633,"line":779},[631,2035,782],{"class":641},[631,2037,785],{"class":645},[631,2039,2040],{"class":633,"line":897},[631,2041,709],{"emptyLinePlaceholder":708},[631,2043,2044,2046,2048,2051,2053],{"class":633,"line":912},[631,2045,1081],{"class":637},[631,2047,1976],{"class":721},[631,2049,2050],{"class":645},"(events",[631,2052,771],{"class":641},[631,2054,740],{"class":641},[631,2056,2057,2059,2061,2063,2065,2067],{"class":633,"line":1513},[631,2058,2008],{"class":760},[631,2060,884],{"class":641},[631,2062,655],{"class":641},[631,2064,2015],{"class":658},[631,2066,763],{"class":641},[631,2068,894],{"class":641},[631,2070,2071,2073,2075,2077],{"class":633,"line":1518},[631,2072,2024],{"class":760},[631,2074,884],{"class":641},[631,2076,2029],{"class":1538},[631,2078,894],{"class":641},[631,2080,2081,2083],{"class":633,"line":1524},[631,2082,782],{"class":641},[631,2084,785],{"class":645},[614,2086,2088],{"id":2087},"ai-log-analysis","AI Log Analysis",[532,2090,2091,2092,2098],{},"The file system drain pairs with the ",[603,2093,2094,2097],{"href":523},[547,2095,2096],{},"analyze-logs"," agent skill",". 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