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OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":596,"path":597,"stem":598,"icon":572},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":600,"path":601,"stem":602,"icon":572},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":604,"path":605,"stem":606,"icon":572},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":608,"title":609,"body":610,"description":1411,"extension":1412,"links":1413,"meta":1419,"navigation":1420,"path":100,"seo":1421,"stem":101,"__hash__":1422},"docs\u002F3.cli\u002F10.logs.md","evlog logs",{"type":611,"value":612,"toc":1404},"minimark",[613,625,648,657,668,673,759,763,766,953,956,1040,1044,1049,1070,1314,1331,1335,1377,1381,1400],[614,615,616,619,620,624],"p",{},[617,618,609],"code",{}," reads the events the ",[621,622,623],"a",{"href":222},"file system drain"," wrote and shows them the way you would want to read them: one line per request, the thing that mattered at the end of it, and one request in full when you have its id. It reads files; it never touches the app.",[626,627,633],"pre",{"className":628,"code":629,"filename":630,"language":631,"meta":632,"style":632},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","evlog logs\n","Terminal","bash","",[617,634,635],{"__ignoreMap":632},[636,637,640,644],"span",{"class":638,"line":639},"line",1,[636,641,643],{"class":642},"sBMFI","evlog",[636,645,647],{"class":646},"sfazB"," logs\n",[626,649,655],{"className":650,"code":652,"filename":653,"language":654,"meta":632},[651],"language-text","6 events · .evlog\u002Flogs\n\n08:00:00  GET    \u002Fapi\u002Fhealth                                 200      2ms\n10:00:00  POST   \u002Fapi\u002Fcheckout                               402    412ms  ✗ Error: Payment processing failed · Card declined by issuer\n10:30:00  GET    \u002Fapi\u002Freports                                200    1.2s   report.id=r-1\n11:00:00  POST   \u002Fapi\u002Frefund                                 200     80ms  audit billing.refund user:usr_42 → invoice:inv_1 success\n11:30:00  GET    \u002Fapi\u002Fitems                                  500     30ms\n11:45:00  GET    \u002Fapi\u002Fitems                                  warn   700ms  user.id=usr_7\n\nevlog logs errors — the 2 that failed · evlog logs \u003CrequestId> — one request in full · evlog logs slow — worst first\n","Output","text",[617,656,652],{"__ignoreMap":632},[614,658,659,660,663,664,667],{},"The newest event is at the bottom, like ",[617,661,662],{},"tail",". Nothing is written: the fs drain writes on every request and this reads what it wrote, both the compact and the ",[617,665,666],{},"pretty: true"," layout, across the dated files.",[669,670,672],"h2",{"id":671},"four-views","Four views",[674,675,676,689],"table",{},[677,678,679],"thead",{},[680,681,682,686],"tr",{},[683,684,685],"th",{},"Command",[683,687,688],{},"Shows",[690,691,692,702,727,741],"tbody",{},[680,693,694,699],{},[695,696,697],"td",{},[617,698,609],{},[695,700,701],{},"The last 50 events, oldest first",[680,703,704,709],{},[695,705,706],{},[617,707,708],{},"evlog logs errors",[695,710,711,712,715,716,719,720,723,724,726],{},"Events that failed: a ",[617,713,714],{},"5xx"," status, an ",[617,717,718],{},"error"," or ",[617,721,722],{},"fatal"," level, or an ",[617,725,718],{}," block",[680,728,729,734],{},[695,730,731],{},[617,732,733],{},"evlog logs slow",[695,735,736,737,740],{},"Events over 500ms, worst first (",[617,738,739],{},"--over 1s"," to move the bar)",[680,742,743,748],{},[695,744,745],{},[617,746,747],{},"evlog logs \u003CrequestId>",[695,749,750,751,754,755,758],{},"Every event carrying that id, in full: request, error with ",[617,752,753],{},"why"," and ",[617,756,757],{},"fix",", audit record, then the business fields. The first block of a UUID is enough",[669,760,762],{"id":761},"filters","Filters",[614,764,765],{},"Filters compose with any view.",[674,767,768,778],{},[677,769,770],{},[680,771,772,775],{},[683,773,774],{},"Flag",[683,776,777],{},"What it does",[690,779,780,808,818,844,854,871,888,898,912,933,943],{},[680,781,782,787],{},[695,783,784],{},[617,785,786],{},"--since \u003Cwhen>",[695,788,789,790,793,794,793,797,800,801,793,804,807],{},"Only events after: a duration back from now (",[617,791,792],{},"15m",", ",[617,795,796],{},"2h",[617,798,799],{},"3d",") or a date (",[617,802,803],{},"2026-10-01",[617,805,806],{},"2026-10-01T09:00",")",[680,809,810,815],{},[695,811,812],{},[617,813,814],{},"--until \u003Cwhen>",[695,816,817],{},"Only events before, same spellings",[680,819,820,825],{},[695,821,822],{},[617,823,824],{},"--level \u003Ca,b>",[695,826,827,828,793,831,793,834,793,837,793,840,793,842],{},"Only these levels: ",[617,829,830],{},"trace",[617,832,833],{},"debug",[617,835,836],{},"info",[617,838,839],{},"warn",[617,841,718],{},[617,843,722],{},[680,845,846,851],{},[695,847,848],{},[617,849,850],{},"--path \u003Cpath>",[695,852,853],{},"Only requests on this exact path",[680,855,856,861],{},[695,857,858],{},[617,859,860],{},"--status \u003Cn>",[695,862,863,864,867,868,807],{},"Only this status (",[617,865,866],{},"404",") or class (",[617,869,870],{},"4xx",[680,872,873,878],{},[695,874,875],{},[617,876,877],{},"--over \u003Cduration>",[695,879,880,881,884,885,807],{},"For ",[617,882,883],{},"slow",": what a request has to exceed (default ",[617,886,887],{},"500ms",[680,889,890,895],{},[695,891,892],{},[617,893,894],{},"--limit \u003Cn>",[695,896,897],{},"Most events to show (default 50)",[680,899,900,905],{},[695,901,902],{},[617,903,904],{},"--dir \u003Cpath>",[695,906,907,908,911],{},"Read another directory (default: the project's ",[617,909,910],{},".evlog\u002Flogs",", or the directory its fs drain is configured for)",[680,913,914,922],{},[695,915,916,793,919],{},[617,917,918],{},"-f",[617,920,921],{},"--follow",[695,923,924,925,928,929,932],{},"Keep reading as the app writes, like ",[617,926,927],{},"tail -f","; ",[617,930,931],{},"Ctrl-C"," stops",[680,934,935,940],{},[695,936,937],{},[617,938,939],{},"--json",[695,941,942],{},"The events as JSON on stdout",[680,944,945,950],{},[695,946,947],{},[617,948,949],{},"--cwd \u003Cdir>",[695,951,952],{},"Another project in the workspace",[614,954,955],{},"A time, level, status or limit that cannot be read stops the command (exit 2) rather than silently widening the query.",[626,957,959],{"className":628,"code":958,"filename":630,"language":631,"meta":632,"style":632},"evlog logs errors --since 1h\nevlog logs slow --over 2s --path \u002Fapi\u002Freports\nevlog logs --status 5xx --level error,fatal --limit 20\nevlog logs -f --path \u002Fapi\u002Fcheckout\n",[617,960,961,977,999,1025],{"__ignoreMap":632},[636,962,963,965,968,971,974],{"class":638,"line":639},[636,964,643],{"class":642},[636,966,967],{"class":646}," logs",[636,969,970],{"class":646}," errors",[636,972,973],{"class":646}," --since",[636,975,976],{"class":646}," 1h\n",[636,978,980,982,984,987,990,993,996],{"class":638,"line":979},2,[636,981,643],{"class":642},[636,983,967],{"class":646},[636,985,986],{"class":646}," slow",[636,988,989],{"class":646}," --over",[636,991,992],{"class":646}," 2s",[636,994,995],{"class":646}," --path",[636,997,998],{"class":646}," \u002Fapi\u002Freports\n",[636,1000,1002,1004,1006,1009,1012,1015,1018,1021],{"class":638,"line":1001},3,[636,1003,643],{"class":642},[636,1005,967],{"class":646},[636,1007,1008],{"class":646}," --status",[636,1010,1011],{"class":646}," 5xx",[636,1013,1014],{"class":646}," --level",[636,1016,1017],{"class":646}," error,fatal",[636,1019,1020],{"class":646}," --limit",[636,1022,1024],{"class":1023},"sbssI"," 20\n",[636,1026,1028,1030,1032,1035,1037],{"class":638,"line":1027},4,[636,1029,643],{"class":642},[636,1031,967],{"class":646},[636,1033,1034],{"class":646}," -f",[636,1036,995],{"class":646},[636,1038,1039],{"class":646}," \u002Fapi\u002Fcheckout\n",[669,1041,1043],{"id":1042},"for-agents","For agents",[614,1045,1046,1048],{},[617,1047,939],{}," returns one envelope: the directory, the view, how many events matched, and the events shown.",[626,1050,1052],{"className":628,"code":1051,"filename":630,"language":631,"meta":632,"style":632},"evlog logs errors --since 30m --json\n",[617,1053,1054],{"__ignoreMap":632},[636,1055,1056,1058,1060,1062,1064,1067],{"class":638,"line":639},[636,1057,643],{"class":642},[636,1059,967],{"class":646},[636,1061,970],{"class":646},[636,1063,973],{"class":646},[636,1065,1066],{"class":646}," 30m",[636,1068,1069],{"class":646}," --json\n",[626,1071,1075],{"className":1072,"code":1073,"language":1074,"meta":632,"style":632},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"schemaVersion\": 2,\n  \"dir\": \"\u002Fapp\u002F.evlog\u002Flogs\",\n  \"view\": \"errors\",\n  \"count\": 2,\n  \"matched\": 2,\n  \"events\": [ { \"timestamp\": \"…\", \"path\": \"\u002Fapi\u002Fcheckout\", \"status\": 402, \"error\": { \"data\": { \"why\": \"…\", \"fix\": \"…\" } } } ]\n}\n","json",[617,1076,1077,1083,1104,1125,1145,1161,1177,1308],{"__ignoreMap":632},[636,1078,1079],{"class":638,"line":639},[636,1080,1082],{"class":1081},"sMK4o","{\n",[636,1084,1085,1088,1092,1095,1098,1101],{"class":638,"line":979},[636,1086,1087],{"class":1081},"  \"",[636,1089,1091],{"class":1090},"spNyl","schemaVersion",[636,1093,1094],{"class":1081},"\"",[636,1096,1097],{"class":1081},":",[636,1099,1100],{"class":1023}," 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[",[636,1193,1194],{"class":1081}," {",[636,1196,1117],{"class":1081},[636,1198,1199],{"class":642},"timestamp",[636,1201,1094],{"class":1081},[636,1203,1097],{"class":1081},[636,1205,1117],{"class":1081},[636,1207,1208],{"class":646},"…",[636,1210,1094],{"class":1081},[636,1212,1213],{"class":1081},",",[636,1215,1117],{"class":1081},[636,1217,1218],{"class":642},"path",[636,1220,1094],{"class":1081},[636,1222,1097],{"class":1081},[636,1224,1117],{"class":1081},[636,1226,1227],{"class":646},"\u002Fapi\u002Fcheckout",[636,1229,1094],{"class":1081},[636,1231,1213],{"class":1081},[636,1233,1117],{"class":1081},[636,1235,1236],{"class":642},"status",[636,1238,1094],{"class":1081},[636,1240,1097],{"class":1081},[636,1242,1243],{"class":1023}," 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]\n",[636,1309,1311],{"class":638,"line":1310},8,[636,1312,1313],{"class":1081},"}\n",[614,1315,1316,1317,1320,1321,1327,1328,1330],{},"With ",[617,1318,1319],{},"--follow --json",", each new event is one JSON line on stdout, since a stream has no end. The ",[621,1322,1323,1326],{"href":575},[617,1324,1325],{},"analyze-logs"," skill"," calls ",[617,1329,609],{}," first and falls back to reading the files only when the CLI is not available.",[669,1332,1334],{"id":1333},"what-it-will-not-do","What it will not do",[1336,1337,1338,1346,1360],"ul",{},[1339,1340,1341,1345],"li",{},[1342,1343,1344],"strong",{},"It reads local files."," A remote drain (Axiom, Datadog, …) has its own query language and UI; this command does not wrap them.",[1339,1347,1348,1351,1352,1355,1356,1359],{},[1342,1349,1350],{},"One directory per run."," In a monorepo, run it from the app (",[617,1353,1354],{},"--cwd apps\u002Fweb",") or pass ",[617,1357,1358],{},"--dir",".",[1339,1361,1362,1365,1366,1369,1370,1372,1373,1376],{},[1342,1363,1364],{},"No aggregation yet."," Counts by route or status are a ",[617,1367,1368],{},"jq"," away from ",[617,1371,939],{},"; a ",[617,1374,1375],{},"stats"," view may come later.",[669,1378,1380],{"id":1379},"next","Next",[1336,1382,1383,1392],{},[1339,1384,1385,1388,1389],{},[621,1386,1387],{"href":222},"File system drain",": what writes the files, rotation, ",[617,1390,1391],{},"pretty",[1339,1393,1394,1399],{},[621,1395,1396],{"href":105},[617,1397,1398],{},"evlog map",": which handlers emit a wide event at all",[1401,1402,1403],"style",{},"html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}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 .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}",{"title":632,"searchDepth":979,"depth":979,"links":1405},[1406,1407,1408,1409,1410],{"id":671,"depth":979,"text":672},{"id":761,"depth":979,"text":762},{"id":1042,"depth":979,"text":1043},{"id":1333,"depth":979,"text":1334},{"id":1379,"depth":979,"text":1380},"Read the wide events your app wrote to .evlog\u002Flogs from the terminal — the latest requests, the failures, the slowest, or one request in full.","md",[1414],{"label":1415,"icon":1416,"to":222,"color":1417,"variant":1418},"File system adapter","i-lucide-folder-open","neutral","subtle",{},{"title":99,"icon":102},{"title":609,"description":1411},"iaEZ3NLCc2GxTCzDE2lKChFmBjJOBWhHw4begvqo6CM",[1424,1426],{"title":94,"path":95,"stem":96,"description":1425,"icon":97,"children":-1},"Wire evlog into an existing app. Interactive setup that installs the package, registers the integration, and wires the destination you pick.",{"title":104,"path":105,"stem":106,"description":1427,"icon":107,"children":-1},"Scan supported entry points for evlog logging patterns, inspect the static observability score, and prioritize fixes without running your handlers.",1791113183188]