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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  \"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",[550,1386,1387,1391,1414,1434,1450,1470,1490,1502,1523,1543,1559,1579,1593,1597,1646,1708,1757,1771,1788,1804,1821,1838,1859,1874,1926,1974,1980,1986],{"__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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}],\n",[697,2353,2354,2356,2358,2360,2362,2364,2367],{"class":699,"line":1306},[697,2355,1506],{"class":789},[697,2357,1845],{"class":703},[697,2359,1401],{"class":789},[697,2361,773],{"class":789},[697,2363,1406],{"class":789},[697,2365,2366],{"class":706},"stop",[697,2368,2369],{"class":789},"\"\n",[697,2371,2372],{"class":699,"line":1648},[697,2373,1985],{"class":789},[697,2375,2376],{"class":699,"line":1710},[697,2377,1991],{"class":789},[531,2379,2380,2381,2384,2385,2384,2388,2391,2392,2394,2395,2398,2399,2402,2403,2406,2407,2384,2409,2384,2412,2415],{},"Token usage and tool executions are accumulated from eve stream events (",[550,2382,2383],{},"step.completed",", ",[550,2386,2387],{},"actions.requested",[550,2389,2390],{},"action.result","). Business fields set via ",[550,2393,1015],{}," carry across turns in the same session. Link turns in analytics with ",[550,2396,2397],{},"eve.sessionId"," + ",[550,2400,2401],{},"eve.turnSequence"," — each event stays self-contained. ",[550,2404,2405],{},"eve.phase"," is only set for non-routine endings (",[550,2408,1574],{},[550,2410,2411],{},"rejected",[550,2413,2414],{},"failed",").",[617,2417,2419],{"id":2418},"production","Production",[531,2421,2422],{},"Long-running eve agents should disable terminal pretty-printing and use a non-blocking drain:",[687,2424,2426],{"className":776,"code":2425,"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",[550,2427,2428,2446,2464,2484,2488,2537,2546,2550,2554,2566,2574,2608,2621,2649,2653,2659,2671],{"__ignoreMap":693},[697,2429,2430,2432,2434,2436,2438,2440,2442,2444],{"class":699,"line":700},[697,2431,786],{"class":785},[697,2433,790],{"class":789},[697,2435,794],{"class":793},[697,2437,797],{"class":789},[697,2439,800],{"class":785},[697,2441,803],{"class":789},[697,2443,556],{"class":706},[697,2445,808],{"class":789},[697,2447,2448,2450,2452,2454,2456,2458,2460,2462],{"class":699,"line":811},[697,2449,786],{"class":785},[697,2451,790],{"class":789},[697,2453,818],{"class":793},[697,2455,797],{"class":789},[697,2457,800],{"class":785},[697,2459,803],{"class":789},[697,2461,827],{"class":706},[697,2463,808],{"class":789},[697,2465,2466,2468,2470,2473,2475,2477,2479,2482],{"class":699,"line":832},[697,2467,786],{"class":785},[697,2469,790],{"class":789},[697,2471,2472],{"class":793}," createDrainPipeline",[697,2474,797],{"class":789},[697,2476,800],{"class":785},[697,2478,803],{"class":789},[697,2480,2481],{"class":706},"evlog\u002Fpipeline",[697,2483,808],{"class":789},[697,2485,2486],{"class":699,"line":839},[697,2487,836],{"emptyLinePlaceholder":835},[697,2489,2490,2493,2496,2499,2501,2503,2505,2508,2510,2512,2515,2517,2520,2522,2525,2527,2530,2532,2534],{"class":699,"line":857},[697,2491,2492],{"class":927},"const",[697,2494,2495],{"class":793}," drain ",[697,2497,2498],{"class":789},"=",[697,2500,2472],{"class":848},[697,2502,851],{"class":793},[697,2504,1145],{"class":789},[697,2506,2507],{"class":860}," batch",[697,2509,773],{"class":789},[697,2511,790],{"class":789},[697,2513,2514],{"class":860}," size",[697,2516,773],{"class":789},[697,2518,2519],{"class":1446}," 50",[697,2521,1257],{"class":789},[697,2523,2524],{"class":860}," intervalMs",[697,2526,773],{"class":789},[697,2528,2529],{"class":1446}," 5000",[697,2531,797],{"class":789},[697,2533,797],{"class":789},[697,2535,2536],{"class":793},")(\n",[697,2538,2539,2542,2544],{"class":699,"line":893},[697,2540,2541],{"class":848},"  createAxiomDrain",[697,2543,903],{"class":793},[697,2545,906],{"class":789},[697,2547,2548],{"class":699,"line":909},[697,2549,979],{"class":793},[697,2551,2552],{"class":699,"line":934},[697,2553,836],{"emptyLinePlaceholder":835},[697,2555,2556,2558,2560,2562,2564],{"class":699,"line":967},[697,2557,842],{"class":785},[697,2559,845],{"class":785},[697,2561,794],{"class":848},[697,2563,851],{"class":793},[697,2565,854],{"class":789},[697,2567,2568,2570,2572],{"class":699,"line":973},[697,2569,861],{"class":860},[697,2571,773],{"class":789},[697,2573,931],{"class":789},[697,2575,2576,2579,2581,2583,2585,2587,2589,2591,2593,2595,2598,2600,2602,2604,2606],{"class":699,"line":1224},[697,2577,2578],{"class":860},"    env",[697,2580,773],{"class":789},[697,2582,790],{"class":789},[697,2584,875],{"class":860},[697,2586,773],{"class":789},[697,2588,803],{"class":789},[697,2590,882],{"class":706},[697,2592,885],{"class":789},[697,2594,1257],{"class":789},[697,2596,2597],{"class":860}," environment",[697,2599,773],{"class":789},[697,2601,803],{"class":789},[697,2603,2418],{"class":706},[697,2605,885],{"class":789},[697,2607,890],{"class":789},[697,2609,2610,2613,2615,2619],{"class":699,"line":1292},[697,2611,2612],{"class":860},"    pretty",[697,2614,773],{"class":789},[697,2616,2618],{"class":2617},"sfNiH"," false",[697,2620,906],{"class":789},[697,2622,2623,2626,2628,2630,2633,2635,2637,2640,2642,2645,2647],{"class":699,"line":1301},[697,2624,2625],{"class":860},"    sampling",[697,2627,773],{"class":789},[697,2629,790],{"class":789},[697,2631,2632],{"class":860}," rates",[697,2634,773],{"class":789},[697,2636,790],{"class":789},[697,2638,2639],{"class":860}," info",[697,2641,773],{"class":789},[697,2643,2644],{"class":1446}," 10",[697,2646,797],{"class":789},[697,2648,890],{"class":789},[697,2650,2651],{"class":699,"line":1306},[697,2652,970],{"class":789},[697,2654,2655,2657],{"class":699,"line":1648},[697,2656,896],{"class":793},[697,2658,906],{"class":789},[697,2660,2661,2664,2666,2669],{"class":699,"line":1710},[697,2662,2663],{"class":860},"  maxSessions",[697,2665,773],{"class":789},[697,2667,2668],{"class":1446}," 256",[697,2670,906],{"class":789},[697,2672,2673,2675],{"class":699,"line":1759},[697,2674,976],{"class":789},[697,2676,979],{"class":793},[622,2678,2679,2689],{},[625,2680,2681],{},[628,2682,2683,2686],{},[631,2684,2685],{},"Concern",[631,2687,2688],{},"Recommendation",[638,2690,2691,2702,2710,2721,2735],{},[628,2692,2693,2696],{},[643,2694,2695],{},"Terminal output",[643,2697,2698,2701],{},[550,2699,2700],{},"init.pretty: false"," — pretty-print is for local dev only",[628,2703,2704,2707],{},[643,2705,2706],{},"Drain latency",[643,2708,2709],{},"Batch or async HTTP drains; never block the turn on I\u002FO",[628,2711,2712,2715],{},[643,2713,2714],{},"Head sampling",[643,2716,2717,2720],{},[550,2718,2719],{},"init.sampling.rates"," — eve emits one event per turn, not per token",[628,2722,2723,2725],{},[643,2724,216],{},[643,2726,2727,2730,2731,2734],{},[550,2728,2729],{},"maxSessions"," (default ",[550,2732,2733],{},"256",") evicts oldest idle session state",[628,2736,2737,2740],{},[643,2738,2739],{},"Load",[643,2741,2742],{},"Hook handlers are O(1) per stream event; cost is dominated by your drain",[617,2744,336],{"id":2745},"options",[622,2747,2748,2758],{},[625,2749,2750],{},[628,2751,2752,2755],{},[631,2753,2754],{},"Option",[631,2756,2757],{},"Description",[638,2759,2760,2773,2795,2809,2832,2843],{},[628,2761,2762,2766],{},[643,2763,2764],{},[550,2765,89],{},[643,2767,2768,2769,2772],{},"Passed to ",[550,2770,2771],{},"initLogger()"," on first hook invocation",[628,2774,2775,2790],{},[643,2776,2777,2780,2781,2780,2784,2780,2787],{},[550,2778,2779],{},"drain"," \u002F ",[550,2782,2783],{},"enrich",[550,2785,2786],{},"keep",[550,2788,2789],{},"plugins",[643,2791,2792,2793,924],{},"Same as HTTP integrations (",[534,2794,2789],{"href":470},[628,2796,2797,2802],{},[643,2798,2799],{},[550,2800,2801],{},"redactMessage",[643,2803,2804,2805,2808],{},"Default ",[550,2806,2807],{},"true"," — omits user message text from the wide event",[628,2810,2811,2819],{},[643,2812,2813,2780,2816],{},[550,2814,2815],{},"cost",[550,2817,2818],{},"model",[643,2820,2821,2822,1345,2825,2828,2829],{},"Optional token pricing (",[550,2823,2824],{},"ModelCost",[550,2826,2827],{},"evlog\u002Fai",") → ",[550,2830,2831],{},"ai.estimatedCost",[628,2833,2834,2838],{},[643,2835,2836],{},[550,2837,2729],{},[643,2839,2840,2841,924],{},"In-memory session cap for context carry-over (default ",[550,2842,2733],{},[628,2844,2845,2853],{},[643,2846,2847,2780,2850],{},[550,2848,2849],{},"include",[550,2851,2852],{},"exclude",[643,2854,2855,2856,924],{},"Route-style filters on turn paths (",[550,2857,2858],{},"\u002Fsessions\u002F*\u002Fturns\u002F*",[617,2860,477],{"id":2861},"tail-sampling",[531,2863,2864,2865,2867],{},"Use ",[550,2866,2786],{}," to force-keep turns with failed tools or high token usage:",[687,2869,2871],{"className":776,"code":2870,"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",[550,2872,2873,2885,2897,2914,2940,2951,2960,2984,2995,3038,3068,3114,3118],{"__ignoreMap":693},[697,2874,2875,2877,2879,2881,2883],{"class":699,"line":700},[697,2876,842],{"class":785},[697,2878,845],{"class":785},[697,2880,794],{"class":848},[697,2882,851],{"class":793},[697,2884,854],{"class":789},[697,2886,2887,2889,2891,2893,2895],{"class":699,"line":811},[697,2888,896],{"class":860},[697,2890,773],{"class":789},[697,2892,818],{"class":848},[697,2894,903],{"class":793},[697,2896,906],{"class":789},[697,2898,2899,2902,2904,2906,2908,2910,2912],{"class":699,"line":832},[697,2900,2901],{"class":848},"  keep",[697,2903,773],{"class":789},[697,2905,917],{"class":789},[697,2907,921],{"class":920},[697,2909,924],{"class":789},[697,2911,928],{"class":927},[697,2913,931],{"class":789},[697,2915,2916,2918,2921,2923,2926,2928,2931,2933,2935,2938],{"class":699,"line":839},[697,2917,1189],{"class":927},[697,2919,2920],{"class":793}," ai",[697,2922,951],{"class":789},[697,2924,2925],{"class":793}," ctx",[697,2927,940],{"class":789},[697,2929,2930],{"class":793},"context",[697,2932,940],{"class":789},[697,2934,1764],{"class":793},[697,2936,2937],{"class":785}," as",[697,2939,931],{"class":789},[697,2941,2942,2945,2948],{"class":699,"line":857},[697,2943,2944],{"class":860},"      inputTokens",[697,2946,2947],{"class":789},"?:",[697,2949,2950],{"class":703}," number\n",[697,2952,2953,2956,2958],{"class":699,"line":893},[697,2954,2955],{"class":860},"      outputTokens",[697,2957,2947],{"class":789},[697,2959,2950],{"class":703},[697,2961,2962,2965,2967,2970,2973,2976,2978,2981],{"class":699,"line":909},[697,2963,2964],{"class":860},"      tools",[697,2966,2947],{"class":789},[697,2968,2969],{"class":703}," Array",[697,2971,2972],{"class":789},"\u003C{",[697,2974,2975],{"class":860}," success",[697,2977,773],{"class":789},[697,2979,2980],{"class":703}," boolean",[697,2982,2983],{"class":789}," }>\n",[697,2985,2986,2989,2992],{"class":699,"line":934},[697,2987,2988],{"class":789},"    }",[697,2990,2991],{"class":789}," |",[697,2993,2994],{"class":703}," undefined\n",[697,2996,2997,2999,3002,3004,3006,3008,3011,3013,3016,3018,3021,3024,3026,3028,3030,3032,3034,3036],{"class":699,"line":967},[697,2998,1189],{"class":927},[697,3000,3001],{"class":793}," totalTokens",[697,3003,951],{"class":789},[697,3005,917],{"class":860},[697,3007,1764],{"class":793},[697,3009,3010],{"class":789},"?.",[697,3012,1811],{"class":793},[697,3014,3015],{"class":789}," ??",[697,3017,1556],{"class":1446},[697,3019,3020],{"class":860},") ",[697,3022,3023],{"class":789},"+",[697,3025,917],{"class":860},[697,3027,1764],{"class":793},[697,3029,3010],{"class":789},[697,3031,1828],{"class":793},[697,3033,3015],{"class":789},[697,3035,1556],{"class":1446},[697,3037,979],{"class":860},[697,3039,3040,3043,3045,3048,3051,3054,3056,3058,3060,3063,3065],{"class":699,"line":973},[697,3041,3042],{"class":785},"    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