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The ",[520,537,538],{},"evlog\u002Ffs"," module also ships ",[541,542,543],"strong",{},"readers"," that let any Node tool replay or follow that history without hooking into the running app.",[546,547],"ndjson-tail",{},[549,550,553,556,614],"prompt",{":actions":551,"description":552,"icon":443},"[\"copy\",\"cursor\",\"claude\"]","Read or tail evlog NDJSON logs from disk",[511,554,555],{},"Build a script that consumes evlog's local NDJSON history (no app hook required).",[557,558,559,570,583,593,611],"ul",{},[560,561,562,563,565,566,569],"li",{},"Confirm the filesystem drain is wired up (",[520,564,538],{}," adapter writing NDJSON to ",[520,567,568],{},".evlog\u002Flogs\u002F*.jsonl",")",[560,571,572,573,576,577,579,580],{},"For replay: import ",[520,574,575],{},"readFsLogs"," from ",[520,578,538],{}," and iterate ",[520,581,582],{},"for await (const event of readFsLogs({ since, until, level, filter }))",[560,584,585,586,589,590],{},"For follow mode: import ",[520,587,588],{},"tailFsLogs"," and iterate the same way — it watches for new lines, handles rotation, and accepts an ",[520,591,592],{},"AbortSignal",[560,594,595,596,599,600,599,603,606,607,610],{},"Apply filters at read time (",[520,597,598],{},"level",", ",[520,601,602],{},"since",[520,604,605],{},"until",", custom ",[520,608,609],{},"filter"," predicate) instead of post-processing",[560,612,613],{},"Treat malformed lines as silently skipped (partial writes happen) — never crash the script on a bad line",[511,615,616,617],{},"Docs: ",[515,618,619],{"href":619,"rel":620},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Ffs-reader",[621],"nofollow",[623,624,626],"h2",{"id":625},"replay-history","Replay history",[628,629,634],"pre",{"className":630,"code":631,"language":632,"meta":633,"style":633},"language-ts shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { readFsLogs } from 'evlog\u002Ffs'\n\nfor await (const event of readFsLogs({ since: '2026-03-01', level: 'error' })) {\n  console.log(event.timestamp, event.action ?? event.message)\n}\n","ts","",[520,635,636,668,675,744,789],{"__ignoreMap":633},[637,638,641,645,649,653,656,659,662,665],"span",{"class":639,"line":640},"line",1,[637,642,644],{"class":643},"s7zQu","import",[637,646,648],{"class":647},"sMK4o"," {",[637,650,652],{"class":651},"sTEyZ"," readFsLogs",[637,654,655],{"class":647}," }",[637,657,658],{"class":643}," from",[637,660,661],{"class":647}," '",[637,663,538],{"class":664},"sfazB",[637,666,667],{"class":647},"'\n",[637,669,671],{"class":639,"line":670},2,[637,672,674],{"emptyLinePlaceholder":673},true,"\n",[637,676,678,681,684,687,691,694,697,700,703,706,710,713,715,718,721,724,727,729,731,734,736,738,741],{"class":639,"line":677},3,[637,679,680],{"class":643},"for",[637,682,683],{"class":643}," await",[637,685,686],{"class":651}," (",[637,688,690],{"class":689},"spNyl","const",[637,692,693],{"class":651}," event ",[637,695,696],{"class":647},"of",[637,698,652],{"class":699},"s2Zo4",[637,701,702],{"class":651},"(",[637,704,705],{"class":647},"{",[637,707,709],{"class":708},"swJcz"," since",[637,711,712],{"class":647},":",[637,714,661],{"class":647},[637,716,717],{"class":664},"2026-03-01",[637,719,720],{"class":647},"'",[637,722,723],{"class":647},",",[637,725,726],{"class":708}," level",[637,728,712],{"class":647},[637,730,661],{"class":647},[637,732,733],{"class":664},"error",[637,735,720],{"class":647},[637,737,655],{"class":647},[637,739,740],{"class":651},")) ",[637,742,743],{"class":647},"{\n",[637,745,747,750,753,756,758,761,763,766,768,771,773,776,779,781,783,786],{"class":639,"line":746},4,[637,748,749],{"class":651},"  console",[637,751,752],{"class":647},".",[637,754,755],{"class":699},"log",[637,757,702],{"class":708},[637,759,760],{"class":651},"event",[637,762,752],{"class":647},[637,764,765],{"class":651},"timestamp",[637,767,723],{"class":647},[637,769,770],{"class":651}," event",[637,772,752],{"class":647},[637,774,775],{"class":651},"action",[637,777,778],{"class":647}," ??",[637,780,770],{"class":651},[637,782,752],{"class":647},[637,784,785],{"class":651},"message",[637,787,788],{"class":708},")\n",[637,790,792],{"class":639,"line":791},5,[637,793,794],{"class":647},"}\n",[511,796,797,800],{},[520,798,799],{},"readFsLogs(options)"," walks the NDJSON files in chronological order, parses them line by line, and yields events that pass all filters. Files outside the date window are skipped entirely.",[802,803,316],"h3",{"id":804},"options",[806,807,808,824],"table",{},[809,810,811],"thead",{},[812,813,814,818,821],"tr",{},[815,816,817],"th",{},"Option",[815,819,820],{},"Type",[815,822,823],{},"Description",[825,826,827,846,863,878,892],"tbody",{},[812,828,829,835,840],{},[830,831,832],"td",{},[520,833,834],{},"dir",[830,836,837],{},[520,838,839],{},"string",[830,841,842,843,752],{},"Directory to read from. 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See the ",[515,1193,1195],{"href":1194},"\u002Fextend\u002Fconsumer-recipes#3-replay-history-then-go-live","replay-then-live recipe",[1197,1198,1199],"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 .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}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);}",{"title":633,"searchDepth":670,"depth":670,"links":1201},[1202,1205,1208],{"id":625,"depth":670,"text":626,"children":1203},[1204],{"id":804,"depth":677,"text":316},{"id":911,"depth":670,"text":912,"children":1206},[1207],{"id":1095,"depth":677,"text":1096},{"id":1166,"depth":670,"text":1167},"Replay and tail the local NDJSON drain with readFsLogs and tailFsLogs — works in-process or from any external Node tool, survives restarts.","md",null,{},{"title":440,"icon":443},{"title":440,"description":1209},"hip7SEWxeeu5DMPk0t0UWw-70GfCvrAeqjgm7ysLBmE",[1217,1219],{"title":435,"path":436,"stem":437,"description":1218,"icon":438,"children":-1},"Build evlog support for an HTTP framework (or non-HTTP runtime) without a built-in integration. 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