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Pin ",[550,568,436],{}," and ",[550,571,572],{},"evlog"," versions in production agents.",[575,576,579,582,604],"prompt",{":actions":577,"description":578,"icon":439},"[\"copy\",\"cursor\",\"claude\"]","Add evlog wide events to my eve agent",[531,580,581],{},"Add evlog wide events to my eve agent.",[583,584,585,589,592,595,598,601],"ul",{},[586,587,588],"li",{},"Install evlog: pnpm add evlog",[586,590,591],{},"Create agent\u002Fhooks\u002Fevlog.ts with defineEvlogHook from 'evlog\u002Feve'",[586,593,594],{},"Pass drain, enrich, and keep options (same as HTTP middleware integrations)",[586,596,597],{},"In tools, import useLogger from 'evlog\u002Feve' and call useLogger() inside execute() — the turn logger is bound via AsyncLocalStorage when defineEvlogHook() is registered; pass ctx only if ALS is unavailable in your runtime",[586,599,600],{},"User message content is redacted by default (redactMessage: true); set false only after reviewing PII policy",[586,602,603],{},"Keep eve Agent Runs \u002F OTel instrumentation — evlog\u002Feve is additive",[531,605,606,607,611,612],{},"Docs: ",[534,608,609],{"href":609,"rel":610},"https:\u002F\u002Fwww.evlog.dev\u002Fuse-cases\u002Feve",[538],"\nAdapters: ",[534,613,614],{"href":614,"rel":615},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[538],[617,618,620],"h2",{"id":619},"when-to-use-what","When to use what",[622,623,624,637],"table",{},[625,626,627],"thead",{},[628,629,630,634],"tr",{},[631,632,633],"th",{},"Need",[631,635,636],{},"Use",[638,639,640,652,664],"tbody",{},[628,641,642,646],{},[643,644,645],"td",{},"Debug a session in Vercel",[643,647,648,649,651],{},"eve ",[541,650,543],{}," (automatic)",[628,653,654,657],{},[643,655,656],{},"Span-level traces in Datadog \u002F Honeycomb",[643,658,648,659,663],{},[541,660,661],{},[550,662,552],{}," + OTel exporter",[628,665,666,669],{},[643,667,668],{},"Wide events to Axiom \u002F Better Stack \u002F FS, billing, audit, tail sampling",[643,670,671],{},[541,672,673],{},[550,674,556],{},[617,676,25],{"id":677},"quick-start",[679,680,682],"h3",{"id":681},"_1-install","1. Install",[684,685,686,714,730,746],"code-group",{},[687,688,694],"pre",{"className":689,"code":690,"filename":691,"language":692,"meta":693,"style":693},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog eve\n","pnpm","bash","",[550,695,696],{"__ignoreMap":693},[697,698,701,704,708,711],"span",{"class":699,"line":700},"line",1,[697,702,691],{"class":703},"sBMFI",[697,705,707],{"class":706},"sfazB"," add",[697,709,710],{"class":706}," evlog",[697,712,713],{"class":706}," eve\n",[687,715,718],{"className":689,"code":716,"filename":717,"language":692,"meta":693,"style":693},"bun add evlog eve\n","bun",[550,719,720],{"__ignoreMap":693},[697,721,722,724,726,728],{"class":699,"line":700},[697,723,717],{"class":703},[697,725,707],{"class":706},[697,727,710],{"class":706},[697,729,713],{"class":706},[687,731,734],{"className":689,"code":732,"filename":733,"language":692,"meta":693,"style":693},"yarn add evlog eve\n","yarn",[550,735,736],{"__ignoreMap":693},[697,737,738,740,742,744],{"class":699,"line":700},[697,739,733],{"class":703},[697,741,707],{"class":706},[697,743,710],{"class":706},[697,745,713],{"class":706},[687,747,750],{"className":689,"code":748,"filename":749,"language":692,"meta":693,"style":693},"npm install evlog eve\n","npm",[550,751,752],{"__ignoreMap":693},[697,753,754,756,759,761],{"class":699,"line":700},[697,755,749],{"class":703},[697,757,758],{"class":706}," install",[697,760,710],{"class":706},[697,762,713],{"class":706},[679,764,766],{"id":765},"_2-add-the-hook","2. Add the hook",[531,768,769,770,773],{},"Create ",[550,771,772],{},"agent\u002Fhooks\u002Fevlog.ts",":",[687,775,779],{"className":776,"code":777,"filename":772,"language":778,"meta":693,"style":693},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { defineEvlogHook } from 'evlog\u002Feve'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\nexport default defineEvlogHook({\n  init: { env: { service: 'my-agent' } },\n  drain: createAxiomDrain(),\n  enrich: (ctx) => {\n    ctx.event.region = process.env.VERCEL_REGION\n  },\n})\n","typescript",[550,780,781,809,830,837,855,891,907,932,965,971],{"__ignoreMap":693},[697,782,783,787,791,795,798,801,804,806],{"class":699,"line":700},[697,784,786],{"class":785},"s7zQu","import",[697,788,790],{"class":789},"sMK4o"," {",[697,792,794],{"class":793},"sTEyZ"," defineEvlogHook",[697,796,797],{"class":789}," }",[697,799,800],{"class":785}," from",[697,802,803],{"class":789}," '",[697,805,556],{"class":706},[697,807,808],{"class":789},"'\n",[697,810,812,814,816,819,821,823,825,828],{"class":699,"line":811},2,[697,813,786],{"class":785},[697,815,790],{"class":789},[697,817,818],{"class":793}," createAxiomDrain",[697,820,797],{"class":789},[697,822,800],{"class":785},[697,824,803],{"class":789},[697,826,827],{"class":706},"evlog\u002Faxiom",[697,829,808],{"class":789},[697,831,833],{"class":699,"line":832},3,[697,834,836],{"emptyLinePlaceholder":835},true,"\n",[697,838,840,843,846,849,852],{"class":699,"line":839},4,[697,841,842],{"class":785},"export",[697,844,845],{"class":785}," default",[697,847,794],{"class":848},"s2Zo4",[697,850,851],{"class":793},"(",[697,853,854],{"class":789},"{\n",[697,856,858,862,864,866,869,871,873,876,878,880,883,886,888],{"class":699,"line":857},5,[697,859,861],{"class":860},"swJcz","  init",[697,863,773],{"class":789},[697,865,790],{"class":789},[697,867,868],{"class":860}," env",[697,870,773],{"class":789},[697,872,790],{"class":789},[697,874,875],{"class":860}," service",[697,877,773],{"class":789},[697,879,803],{"class":789},[697,881,882],{"class":706},"my-agent",[697,884,885],{"class":789},"'",[697,887,797],{"class":789},[697,889,890],{"class":789}," },\n",[697,892,894,897,899,901,904],{"class":699,"line":893},6,[697,895,896],{"class":860},"  drain",[697,898,773],{"class":789},[697,900,818],{"class":848},[697,902,903],{"class":793},"()",[697,905,906],{"class":789},",\n",[697,908,910,913,915,918,922,925,929],{"class":699,"line":909},7,[697,911,912],{"class":848},"  enrich",[697,914,773],{"class":789},[697,916,917],{"class":789}," (",[697,919,921],{"class":920},"sHdIc","ctx",[697,923,924],{"class":789},")",[697,926,928],{"class":927},"spNyl"," =>",[697,930,931],{"class":789}," {\n",[697,933,935,938,941,944,946,949,952,955,957,960,962],{"class":699,"line":934},8,[697,936,937],{"class":793},"    ctx",[697,939,940],{"class":789},".",[697,942,943],{"class":793},"event",[697,945,940],{"class":789},[697,947,948],{"class":793},"region",[697,950,951],{"class":789}," =",[697,953,954],{"class":793}," process",[697,956,940],{"class":789},[697,958,959],{"class":793},"env",[697,961,940],{"class":789},[697,963,964],{"class":793},"VERCEL_REGION\n",[697,966,968],{"class":699,"line":967},9,[697,969,970],{"class":789},"  },\n",[697,972,974,977],{"class":699,"line":973},10,[697,975,976],{"class":789},"}",[697,978,979],{"class":793},")\n",[531,981,982,983,986,987,990],{},"eve auto-discovers hook files under ",[550,984,985],{},"agent\u002Fhooks\u002F",". No HTTP middleware — the unit of work is an agent ",[541,988,989],{},"turn",", not a request.",[679,992,994],{"id":993},"_3-log-business-context-from-tools","3. Log business context from tools",[531,996,997,1000,1001,1004,1005,1008,1009,1012,1013,1016,1017,1020],{},[550,998,999],{},"defineEvlogHook()"," binds the turn logger via ",[541,1002,1003],{},"AsyncLocalStorage"," on ",[550,1006,1007],{},"turn.started",". Inside tool ",[550,1010,1011],{},"execute()"," handlers, call ",[550,1014,1015],{},"useLogger()"," with no arguments — same ergonomics as ",[550,1018,1019],{},"useLogger(event)"," in Nuxt or Hono.",[531,1022,1023,1024,1029],{},"In the ",[534,1025,1028],{"href":1026,"rel":1027},"https:\u002F\u002Fgithub.com\u002FHugoRCD\u002Fevlog\u002Ftree\u002Fmain\u002Fexamples\u002Feve",[538],"example agent",", support tools attach customer and order context as the agent works a refund:",[687,1031,1034],{"className":776,"code":1032,"filename":1033,"language":778,"meta":693,"style":693},"import { defineTool } from 'eve\u002Ftools'\nimport { useLogger } from 'evlog\u002Feve'\nimport { z } from 'zod'\n\nexport default defineTool({\n  description: 'Look up an order by id.',\n  inputSchema: z.object({ orderId: z.string() }),\n  async execute({ orderId }) {\n    const order = await fetchOrder(orderId)\n    const log = useLogger()\n    log.set({ order: { id: order.id, amount: order.amount, status: order.status } })\n    return order\n  },\n})\n","agent\u002Ftools\u002Flookup_order.ts",[550,1035,1036,1056,1075,1095,1099,1111,1127,1167,1185,1208,1222,1290,1299,1304],{"__ignoreMap":693},[697,1037,1038,1040,1042,1045,1047,1049,1051,1054],{"class":699,"line":700},[697,1039,786],{"class":785},[697,1041,790],{"class":789},[697,1043,1044],{"class":793}," defineTool",[697,1046,797],{"class":789},[697,1048,800],{"class":785},[697,1050,803],{"class":789},[697,1052,1053],{"class":706},"eve\u002Ftools",[697,1055,808],{"class":789},[697,1057,1058,1060,1062,1065,1067,1069,1071,1073],{"class":699,"line":811},[697,1059,786],{"class":785},[697,1061,790],{"class":789},[697,1063,1064],{"class":793}," useLogger",[697,1066,797],{"class":789},[697,1068,800],{"class":785},[697,1070,803],{"class":789},[697,1072,556],{"class":706},[697,1074,808],{"class":789},[697,1076,1077,1079,1081,1084,1086,1088,1090,1093],{"class":699,"line":832},[697,1078,786],{"class":785},[697,1080,790],{"class":789},[697,1082,1083],{"class":793}," z",[697,1085,797],{"class":789},[697,1087,800],{"class":785},[697,1089,803],{"class":789},[697,1091,1092],{"class":706},"zod",[697,1094,808],{"class":789},[697,1096,1097],{"class":699,"line":839},[697,1098,836],{"emptyLinePlaceholder":835},[697,1100,1101,1103,1105,1107,1109],{"class":699,"line":857},[697,1102,842],{"class":785},[697,1104,845],{"class":785},[697,1106,1044],{"class":848},[697,1108,851],{"class":793},[697,1110,854],{"class":789},[697,1112,1113,1116,1118,1120,1123,1125],{"class":699,"line":893},[697,1114,1115],{"class":860},"  description",[697,1117,773],{"class":789},[697,1119,803],{"class":789},[697,1121,1122],{"class":706},"Look up an order by id.",[697,1124,885],{"class":789},[697,1126,906],{"class":789},[697,1128,1129,1132,1134,1136,1138,1141,1143,1146,1149,1151,1153,1155,1158,1161,1163,1165],{"class":699,"line":909},[697,1130,1131],{"class":860},"  inputSchema",[697,1133,773],{"class":789},[697,1135,1083],{"class":793},[697,1137,940],{"class":789},[697,1139,1140],{"class":848},"object",[697,1142,851],{"class":793},[697,1144,1145],{"class":789},"{",[697,1147,1148],{"class":860}," orderId",[697,1150,773],{"class":789},[697,1152,1083],{"class":793},[697,1154,940],{"class":789},[697,1156,1157],{"class":848},"string",[697,1159,1160],{"class":793},"() ",[697,1162,976],{"class":789},[697,1164,924],{"class":793},[697,1166,906],{"class":789},[697,1168,1169,1172,1175,1178,1180,1183],{"class":699,"line":934},[697,1170,1171],{"class":927},"  async",[697,1173,1174],{"class":860}," execute",[697,1176,1177],{"class":789},"({",[697,1179,1148],{"class":920},[697,1181,1182],{"class":789}," })",[697,1184,931],{"class":789},[697,1186,1187,1190,1193,1195,1198,1201,1203,1206],{"class":699,"line":967},[697,1188,1189],{"class":927},"    const",[697,1191,1192],{"class":793}," order",[697,1194,951],{"class":789},[697,1196,1197],{"class":785}," await",[697,1199,1200],{"class":848}," fetchOrder",[697,1202,851],{"class":860},[697,1204,1205],{"class":793},"orderId",[697,1207,979],{"class":860},[697,1209,1210,1212,1215,1217,1219],{"class":699,"line":973},[697,1211,1189],{"class":927},[697,1213,1214],{"class":793}," log",[697,1216,951],{"class":789},[697,1218,1064],{"class":848},[697,1220,1221],{"class":860},"()\n",[697,1223,1225,1228,1230,1233,1235,1237,1239,1241,1243,1246,1248,1250,1252,1255,1258,1261,1263,1265,1267,1270,1272,1275,1277,1279,1281,1284,1286,1288],{"class":699,"line":1224},11,[697,1226,1227],{"class":793},"    log",[697,1229,940],{"class":789},[697,1231,1232],{"class":848},"set",[697,1234,851],{"class":860},[697,1236,1145],{"class":789},[697,1238,1192],{"class":860},[697,1240,773],{"class":789},[697,1242,790],{"class":789},[697,1244,1245],{"class":860}," id",[697,1247,773],{"class":789},[697,1249,1192],{"class":793},[697,1251,940],{"class":789},[697,1253,1254],{"class":793},"id",[697,1256,1257],{"class":789},",",[697,1259,1260],{"class":860}," amount",[697,1262,773],{"class":789},[697,1264,1192],{"class":793},[697,1266,940],{"class":789},[697,1268,1269],{"class":793},"amount",[697,1271,1257],{"class":789},[697,1273,1274],{"class":860}," status",[697,1276,773],{"class":789},[697,1278,1192],{"class":793},[697,1280,940],{"class":789},[697,1282,1283],{"class":793},"status",[697,1285,797],{"class":789},[697,1287,797],{"class":789},[697,1289,979],{"class":860},[697,1291,1293,1296],{"class":699,"line":1292},12,[697,1294,1295],{"class":785},"    return",[697,1297,1298],{"class":793}," order\n",[697,1300,1302],{"class":699,"line":1301},13,[697,1303,970],{"class":789},[697,1305,1307,1309],{"class":699,"line":1306},14,[697,1308,976],{"class":789},[697,1310,979],{"class":793},[563,1312,1314,1317,1318,1320,1321,1323,1324,1327,1328,1330],{"color":1313,"icon":136},"neutral",[541,1315,1316],{},"Fallback:"," if ",[550,1319,1015],{}," throws outside a turn, pass eve tool ",[550,1322,921],{},": ",[550,1325,1326],{},"useLogger(ctx)",". This covers separate hook\u002Ftool bundles or runtimes where AsyncLocalStorage does not propagate. With a standard eve agent layout and ",[550,1329,772],{}," registered, you should not need it.",[679,1332,1334],{"id":1333},"_4-nextjs-web-chat-optional","4. Next.js web chat (optional)",[531,1336,1337,1338,1341,1342,1345,1346,1349,1350,1345,1353,1356,1357,1360,1361,1364,1365,1368,1369,940],{},"Wrap ",[550,1339,1340],{},"next.config.ts"," with ",[550,1343,1344],{},"withEve()"," from ",[550,1347,1348],{},"eve\u002Fnext"," and use ",[550,1351,1352],{},"useEveAgent()",[550,1354,1355],{},"eve\u002Freact"," in your app. eve starts alongside ",[550,1358,1359],{},"next dev"," and proxies ",[550,1362,1363],{},"\u002Feve\u002Fv1\u002F*"," on the same origin — tool calls, approvals, and ",[550,1366,1367],{},"ask_question"," work out of the box. See the ",[534,1370,1028],{"href":1026,"rel":1371},[538],[617,1373,1375],{"id":1374},"wide-event-shape","Wide event shape",[531,1377,1378],{},"Each completed turn emits one event:",[687,1380,1385],{"className":1381,"code":1382,"filename":1383,"language":1384,"meta":693,"style":693},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"method\": \"EVE\",\n  \"path\": \"\u002Fsessions\u002Fsess_abc\u002Fturns\u002Fturn_0\",\n  \"status\": 200,\n  \"duration\": \"7.9s\",\n  \"durationMs\": 7903,\n  \"service\": \"clearbill-support-agent\",\n  \"eve\": {\n    \"sessionId\": \"sess_abc\",\n    \"turnId\": \"turn_0\",\n    \"turnSequence\": 0,\n    \"phase\": \"awaiting-approval\",\n    \"sessionTurns\": 1\n  },\n  \"customer\": { \"slug\": \"acme-corp\", \"plan\": \"enterprise\" },\n  \"order\": { \"id\": \"4821\", \"amount\": 890, \"currency\": \"USD\" },\n  \"approval\": { \"status\": \"pending\", \"tool\": \"issue_refund\" },\n  \"ai\": {\n    \"calls\": 2,\n    \"steps\": 2,\n    \"inputTokens\": 11724,\n    \"outputTokens\": 282,\n    \"finishReason\": \"tool-calls\",\n    \"tools\": [\n      { \"name\": \"lookup_customer\", \"durationMs\": 26, \"success\": true },\n      { \"name\": \"lookup_order\", \"durationMs\": 13, \"success\": true }\n    ]\n  }\n}\n","Wide Event — turn awaiting approval","json",[550,1386,1387,1391,1414,1434,1450,1470,1486,1506,1518,1539,1559,1575,1595,1609,1613,1663,1725,1774,1788,1805,1821,1838,1855,1876,1891,1942,1990,1996,2002],{"__ignoreMap":693},[697,1388,1389],{"class":699,"line":700},[697,1390,854],{"class":789},[697,1392,1393,1396,1399,1402,1404,1407,1410,1412],{"class":699,"line":811},[697,1394,1395],{"class":789},"  \"",[697,1397,1398],{"class":927},"method",[697,1400,1401],{"class":789},"\"",[697,1403,773],{"class":789},[697,1405,1406],{"class":789}," 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[{",[697,2327,1406],{"class":789},[697,2329,1901],{"class":1446},[697,2331,1401],{"class":789},[697,2333,773],{"class":789},[697,2335,1406],{"class":789},[697,2337,1769],{"class":706},[697,2339,1401],{"class":789},[697,2341,1257],{"class":789},[697,2343,1406],{"class":789},[697,2345,1476],{"class":1446},[697,2347,1401],{"class":789},[697,2349,773],{"class":789},[697,2351,2352],{"class":1446}," 993",[697,2354,1257],{"class":789},[697,2356,1406],{"class":789},[697,2358,1932],{"class":1446},[697,2360,1401],{"class":789},[697,2362,773],{"class":789},[697,2364,1939],{"class":789},[697,2366,2367],{"class":789}," }],\n",[697,2369,2370,2372,2374,2376,2378,2380,2383],{"class":699,"line":1306},[697,2371,1522],{"class":789},[697,2373,1862],{"class":703},[697,2375,1401],{"class":789},[697,2377,773],{"class":789},[697,2379,1406],{"class":789},[697,2381,2382],{"class":706},"stop",[697,2384,2385],{"class":789},"\"\n",[697,2387,2388],{"class":699,"line":1615},[697,2389,2001],{"class":789},[697,2391,2392],{"class":699,"line":1665},[697,2393,2007],{"class":789},[531,2395,2396,2397,2400,2401,2400,2404,2407,2408,2410,2411,2414,2415,2418,2419,2422,2423,2400,2425,2400,2428,2431],{},"Token usage and tool executions are accumulated from eve stream events (",[550,2398,2399],{},"step.completed",", ",[550,2402,2403],{},"actions.requested",[550,2405,2406],{},"action.result","). Business fields set via ",[550,2409,1015],{}," carry across turns in the same session. Link turns in analytics with ",[550,2412,2413],{},"eve.sessionId"," + ",[550,2416,2417],{},"eve.turnSequence"," — each event stays self-contained. ",[550,2420,2421],{},"eve.phase"," is only set for non-routine endings (",[550,2424,1590],{},[550,2426,2427],{},"rejected",[550,2429,2430],{},"failed",").",[617,2433,2435],{"id":2434},"production","Production",[531,2437,2438],{},"Long-running eve agents should disable terminal pretty-printing and use a non-blocking drain:",[687,2440,2442],{"className":776,"code":2441,"filename":772,"language":778,"meta":693,"style":693},"import { defineEvlogHook } from 'evlog\u002Feve'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\n\nconst drain = createDrainPipeline({ batch: { size: 50, intervalMs: 5000 } })(\n  createAxiomDrain(),\n)\n\nexport default defineEvlogHook({\n  init: {\n    env: { service: 'my-agent', environment: 'production' },\n    pretty: false,\n    sampling: { rates: { info: 10 } },\n  },\n  drain,\n  maxSessions: 256,\n})\n",[550,2443,2444,2462,2480,2500,2504,2553,2562,2566,2570,2582,2590,2624,2637,2665,2669,2675,2687],{"__ignoreMap":693},[697,2445,2446,2448,2450,2452,2454,2456,2458,2460],{"class":699,"line":700},[697,2447,786],{"class":785},[697,2449,790],{"class":789},[697,2451,794],{"class":793},[697,2453,797],{"class":789},[697,2455,800],{"class":785},[697,2457,803],{"class":789},[697,2459,556],{"class":706},[697,2461,808],{"class":789},[697,2463,2464,2466,2468,2470,2472,2474,2476,2478],{"class":699,"line":811},[697,2465,786],{"class":785},[697,2467,790],{"class":789},[697,2469,818],{"class":793},[697,2471,797],{"class":789},[697,2473,800],{"class":785},[697,2475,803],{"class":789},[697,2477,827],{"class":706},[697,2479,808],{"class":789},[697,2481,2482,2484,2486,2489,2491,2493,2495,2498],{"class":699,"line":832},[697,2483,786],{"class":785},[697,2485,790],{"class":789},[697,2487,2488],{"class":793}," createDrainPipeline",[697,2490,797],{"class":789},[697,2492,800],{"class":785},[697,2494,803],{"class":789},[697,2496,2497],{"class":706},"evlog\u002Fpipeline",[697,2499,808],{"class":789},[697,2501,2502],{"class":699,"line":839},[697,2503,836],{"emptyLinePlaceholder":835},[697,2505,2506,2509,2512,2515,2517,2519,2521,2524,2526,2528,2531,2533,2536,2538,2541,2543,2546,2548,2550],{"class":699,"line":857},[697,2507,2508],{"class":927},"const",[697,2510,2511],{"class":793}," drain ",[697,2513,2514],{"class":789},"=",[697,2516,2488],{"class":848},[697,2518,851],{"class":793},[697,2520,1145],{"class":789},[697,2522,2523],{"class":860}," batch",[697,2525,773],{"class":789},[697,2527,790],{"class":789},[697,2529,2530],{"class":860}," size",[697,2532,773],{"class":789},[697,2534,2535],{"class":1446}," 50",[697,2537,1257],{"class":789},[697,2539,2540],{"class":860}," intervalMs",[697,2542,773],{"class":789},[697,2544,2545],{"class":1446}," 5000",[697,2547,797],{"class":789},[697,2549,797],{"class":789},[697,2551,2552],{"class":793},")(\n",[697,2554,2555,2558,2560],{"class":699,"line":893},[697,2556,2557],{"class":848},"  createAxiomDrain",[697,2559,903],{"class":793},[697,2561,906],{"class":789},[697,2563,2564],{"class":699,"line":909},[697,2565,979],{"class":793},[697,2567,2568],{"class":699,"line":934},[697,2569,836],{"emptyLinePlaceholder":835},[697,2571,2572,2574,2576,2578,2580],{"class":699,"line":967},[697,2573,842],{"class":785},[697,2575,845],{"class":785},[697,2577,794],{"class":848},[697,2579,851],{"class":793},[697,2581,854],{"class":789},[697,2583,2584,2586,2588],{"class":699,"line":973},[697,2585,861],{"class":860},[697,2587,773],{"class":789},[697,2589,931],{"class":789},[697,2591,2592,2595,2597,2599,2601,2603,2605,2607,2609,2611,2614,2616,2618,2620,2622],{"class":699,"line":1224},[697,2593,2594],{"class":860},"    env",[697,2596,773],{"class":789},[697,2598,790],{"class":789},[697,2600,875],{"class":860},[697,2602,773],{"class":789},[697,2604,803],{"class":789},[697,2606,882],{"class":706},[697,2608,885],{"class":789},[697,2610,1257],{"class":789},[697,2612,2613],{"class":860}," environment",[697,2615,773],{"class":789},[697,2617,803],{"class":789},[697,2619,2434],{"class":706},[697,2621,885],{"class":789},[697,2623,890],{"class":789},[697,2625,2626,2629,2631,2635],{"class":699,"line":1292},[697,2627,2628],{"class":860},"    pretty",[697,2630,773],{"class":789},[697,2632,2634],{"class":2633},"sfNiH"," false",[697,2636,906],{"class":789},[697,2638,2639,2642,2644,2646,2649,2651,2653,2656,2658,2661,2663],{"class":699,"line":1301},[697,2640,2641],{"class":860},"    sampling",[697,2643,773],{"class":789},[697,2645,790],{"class":789},[697,2647,2648],{"class":860}," rates",[697,2650,773],{"class":789},[697,2652,790],{"class":789},[697,2654,2655],{"class":860}," info",[697,2657,773],{"class":789},[697,2659,2660],{"class":1446}," 10",[697,2662,797],{"class":789},[697,2664,890],{"class":789},[697,2666,2667],{"class":699,"line":1306},[697,2668,970],{"class":789},[697,2670,2671,2673],{"class":699,"line":1615},[697,2672,896],{"class":793},[697,2674,906],{"class":789},[697,2676,2677,2680,2682,2685],{"class":699,"line":1665},[697,2678,2679],{"class":860},"  maxSessions",[697,2681,773],{"class":789},[697,2683,2684],{"class":1446}," 256",[697,2686,906],{"class":789},[697,2688,2689,2691],{"class":699,"line":1727},[697,2690,976],{"class":789},[697,2692,979],{"class":793},[622,2694,2695,2705],{},[625,2696,2697],{},[628,2698,2699,2702],{},[631,2700,2701],{},"Concern",[631,2703,2704],{},"Recommendation",[638,2706,2707,2718,2726,2737,2751],{},[628,2708,2709,2712],{},[643,2710,2711],{},"Terminal output",[643,2713,2714,2717],{},[550,2715,2716],{},"init.pretty: false"," — pretty-print is for local dev only",[628,2719,2720,2723],{},[643,2721,2722],{},"Drain latency",[643,2724,2725],{},"Batch or async HTTP drains; never block the turn on I\u002FO",[628,2727,2728,2731],{},[643,2729,2730],{},"Head sampling",[643,2732,2733,2736],{},[550,2734,2735],{},"init.sampling.rates"," — eve emits one event per turn, not per token",[628,2738,2739,2741],{},[643,2740,216],{},[643,2742,2743,2746,2747,2750],{},[550,2744,2745],{},"maxSessions"," (default ",[550,2748,2749],{},"256",") evicts oldest idle session state",[628,2752,2753,2756],{},[643,2754,2755],{},"Load",[643,2757,2758],{},"Hook handlers are O(1) per stream event; cost is dominated by your drain",[617,2760,336],{"id":2761},"options",[622,2763,2764,2774],{},[625,2765,2766],{},[628,2767,2768,2771],{},[631,2769,2770],{},"Option",[631,2772,2773],{},"Description",[638,2775,2776,2789,2811,2825,2848,2859],{},[628,2777,2778,2782],{},[643,2779,2780],{},[550,2781,89],{},[643,2783,2784,2785,2788],{},"Passed to ",[550,2786,2787],{},"initLogger()"," on first hook invocation",[628,2790,2791,2806],{},[643,2792,2793,2796,2797,2796,2800,2796,2803],{},[550,2794,2795],{},"drain"," \u002F ",[550,2798,2799],{},"enrich",[550,2801,2802],{},"keep",[550,2804,2805],{},"plugins",[643,2807,2808,2809,924],{},"Same as HTTP integrations (",[534,2810,2805],{"href":470},[628,2812,2813,2818],{},[643,2814,2815],{},[550,2816,2817],{},"redactMessage",[643,2819,2820,2821,2824],{},"Default ",[550,2822,2823],{},"true"," — omits user message text from the wide event",[628,2826,2827,2835],{},[643,2828,2829,2796,2832],{},[550,2830,2831],{},"cost",[550,2833,2834],{},"model",[643,2836,2837,2838,1345,2841,2844,2845],{},"Optional token pricing (",[550,2839,2840],{},"ModelCost",[550,2842,2843],{},"evlog\u002Fai",") → ",[550,2846,2847],{},"ai.estimatedCost",[628,2849,2850,2854],{},[643,2851,2852],{},[550,2853,2745],{},[643,2855,2856,2857,924],{},"In-memory session cap for context carry-over (default ",[550,2858,2749],{},[628,2860,2861,2869],{},[643,2862,2863,2796,2866],{},[550,2864,2865],{},"include",[550,2867,2868],{},"exclude",[643,2870,2871,2872,924],{},"Route-style filters on turn paths (",[550,2873,2874],{},"\u002Fsessions\u002F*\u002Fturns\u002F*",[617,2876,477],{"id":2877},"tail-sampling",[531,2879,2880,2881,2883],{},"Use ",[550,2882,2802],{}," to force-keep turns with failed tools or high token usage:",[687,2885,2887],{"className":776,"code":2886,"filename":772,"language":778,"meta":693,"style":693},"export default defineEvlogHook({\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    const ai = ctx.context.ai as {\n      inputTokens?: number\n      outputTokens?: number\n      tools?: Array\u003C{ success: boolean }>\n    } | undefined\n    const totalTokens = (ai?.inputTokens ?? 0) + (ai?.outputTokens ?? 0)\n    if (totalTokens > 10_000) ctx.shouldKeep = true\n    if (ai?.tools?.some(t => !t.success)) ctx.shouldKeep = true\n  },\n})\n",[550,2888,2889,2901,2913,2930,2956,2967,2976,3000,3011,3054,3084,3130,3134],{"__ignoreMap":693},[697,2890,2891,2893,2895,2897,2899],{"class":699,"line":700},[697,2892,842],{"class":785},[697,2894,845],{"class":785},[697,2896,794],{"class":848},[697,2898,851],{"class":793},[697,2900,854],{"class":789},[697,2902,2903,2905,2907,2909,2911],{"class":699,"line":811},[697,2904,896],{"class":860},[697,2906,773],{"class":789},[697,2908,818],{"class":848},[697,2910,903],{"class":793},[697,2912,906],{"class":789},[697,2914,2915,2918,2920,2922,2924,2926,2928],{"class":699,"line":832},[697,2916,2917],{"class":848},"  keep",[697,2919,773],{"class":789},[697,2921,917],{"class":789},[697,2923,921],{"class":920},[697,2925,924],{"class":789},[697,2927,928],{"class":927},[697,2929,931],{"class":789},[697,2931,2932,2934,2937,2939,2942,2944,2947,2949,2951,2954],{"class":699,"line":839},[697,2933,1189],{"class":927},[697,2935,2936],{"class":793}," ai",[697,2938,951],{"class":789},[697,2940,2941],{"class":793}," ctx",[697,2943,940],{"class":789},[697,2945,2946],{"class":793},"context",[697,2948,940],{"class":789},[697,2950,1781],{"class":793},[697,2952,2953],{"class":785}," as",[697,2955,931],{"class":789},[697,2957,2958,2961,2964],{"class":699,"line":857},[697,2959,2960],{"class":860},"      inputTokens",[697,2962,2963],{"class":789},"?:",[697,2965,2966],{"class":703}," number\n",[697,2968,2969,2972,2974],{"class":699,"line":893},[697,2970,2971],{"class":860},"      outputTokens",[697,2973,2963],{"class":789},[697,2975,2966],{"class":703},[697,2977,2978,2981,2983,2986,2989,2992,2994,2997],{"class":699,"line":909},[697,2979,2980],{"class":860},"      tools",[697,2982,2963],{"class":789},[697,2984,2985],{"class":703}," Array",[697,2987,2988],{"class":789},"\u003C{",[697,2990,2991],{"class":860}," success",[697,2993,773],{"class":789},[697,2995,2996],{"class":703}," boolean",[697,2998,2999],{"class":789}," }>\n",[697,3001,3002,3005,3008],{"class":699,"line":934},[697,3003,3004],{"class":789},"    }",[697,3006,3007],{"class":789}," |",[697,3009,3010],{"class":703}," undefined\n",[697,3012,3013,3015,3018,3020,3022,3024,3027,3029,3032,3034,3037,3040,3042,3044,3046,3048,3050,3052],{"class":699,"line":967},[697,3014,1189],{"class":927},[697,3016,3017],{"class":793}," totalTokens",[697,3019,951],{"class":789},[697,3021,917],{"class":860},[697,3023,1781],{"class":793},[697,3025,3026],{"class":789},"?.",[697,3028,1828],{"class":793},[697,3030,3031],{"class":789}," ??",[697,3033,1572],{"class":1446},[697,3035,3036],{"class":860},") ",[697,3038,3039],{"class":789},"+",[697,3041,917],{"class":860},[697,3043,1781],{"class":793},[697,3045,3026],{"class":789},[697,3047,1845],{"class":793},[697,3049,3031],{"class":789},[697,3051,1572],{"class":1446},[697,3053,979],{"class":860},[697,3055,3056,3059,3061,3064,3067,3070,3072,3074,3076,3079,3081],{"class":699,"line":973},[697,3057,3058],{"class":785},"    if",[697,3060,917],{"class":860},[697,3062,3063],{"class":793},"totalTokens",[697,3065,3066],{"class":789}," >",[697,3068,3069],{"class":1446}," 10_000",[697,3071,3036],{"class":860},[697,3073,921],{"class":793},[697,3075,940],{"class":789},[697,3077,3078],{"class":793},"shouldKeep",[697,3080,951],{"class":789},[697,3082,3083],{"class":2633}," true\n",[697,3085,3086,3088,3090,3092,3094,3096,3098,3101,3103,3106,3108,3111,3113,3115,3117,3120,3122,3124,3126,3128],{"class":699,"line":1224},[697,3087,3058],{"class":785},[697,3089,917],{"class":860},[697,3091,1781],{"class":793},[697,3093,3026],{"class":789},[697,3095,1883],{"class":793},[697,3097,3026],{"class":789},[697,3099,3100],{"class":848},"some",[697,3102,851],{"class":860},[697,3104,3105],{"class":920},"t",[697,3107,928],{"class":927},[697,3109,3110],{"class":789}," !",[697,3112,3105],{"class":793},[697,3114,940],{"class":789},[697,3116,1932],{"class":793},[697,3118,3119],{"class":860},")) ",[697,3121,921],{"class":793},[697,3123,940],{"class":789},[697,3125,3078],{"class":793},[697,3127,951],{"class":789},[697,3129,3083],{"class":2633},[697,3131,3132],{"class":699,"line":1292},[697,3133,970],{"class":789},[697,3135,3136,3138],{"class":699,"line":1301},[697,3137,976],{"class":789},[697,3139,979],{"class":793},[617,3141,3143],{"id":3142},"audit-logs","Audit logs",[531,3145,3146,3147,3149,3150,3153,3154,3157,3158,3161,3162,1341,3164,940],{},"Combine with ",[534,3148,378],{"href":384},": register ",[550,3151,3152],{},"auditEnricher()"," via ",[550,3155,3156],{},"init.plugins"," or a global plugin, and call ",[550,3159,3160],{},"log.audit()"," inside tools when a human approval gate fires. Tool rejections surface on ",[550,3163,2406],{},[550,3165,3166],{},"status: \"rejected\"",[617,3168,3170],{"id":3169},"run-locally","Run locally",[687,3172,3174],{"className":689,"code":3173,"language":692,"meta":693,"style":693},"git clone https:\u002F\u002Fgithub.com\u002FHugoRCD\u002Fevlog\ncd evlog\npnpm install\npnpm example eve\n",[550,3175,3176,3187,3195,3202],{"__ignoreMap":693},[697,3177,3178,3181,3184],{"class":699,"line":700},[697,3179,3180],{"class":703},"git",[697,3182,3183],{"class":706}," clone",[697,3185,3186],{"class":706}," https:\u002F\u002Fgithub.com\u002FHugoRCD\u002Fevlog\n",[697,3188,3189,3192],{"class":699,"line":811},[697,3190,3191],{"class":848},"cd",[697,3193,3194],{"class":706}," evlog\n",[697,3196,3197,3199],{"class":699,"line":832},[697,3198,691],{"class":703},[697,3200,3201],{"class":706}," install\n",[697,3203,3204,3206,3209],{"class":699,"line":839},[697,3205,691],{"class":703},[697,3207,3208],{"class":706}," example",[697,3210,713],{"class":706},[531,3212,3213,3214,3217,3218,3221,3222,3225,3226,3232],{},"The ",[550,3215,3216],{},"examples\u002Feve"," project is a ",[541,3219,3220],{},"support refund copilot"," (Clearbill SaaS): lookup customer → lookup order → issue refund, with eve approvals when amount > $100. 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