perf: v2.5.10 — ready for 10+ concurrent users, leaner locally
Measured on a copy of a real 1.2 GB / 253K-event database, 10 simulated browsers + 10 hooks/s for 90 s: event-loop delay p99 1239 ms → 32 ms (max 2.0 s → 94 ms), 266 failed requests → 0, 74 → 111 requests/s served, server RSS 633 → 346 MB. Entry bundle 975 KB raw → 394 KB (106 KB brotli). Server - /api/analytics: the events-table scans run in the read worker (scoped-stats eventAggregates, read-pool job analyticsEvents); runRead takes maxAgeMs — analytics 10 s, /api/workflows 30 s — keyed by the args - /api/workflows/skill-usage: +event_type and a tool_name range instead of LIKE, so it uses idx_events_tool (784 ms → a few ms) - idx_events_session_type_tool (session_id, event_type, tool_name, created_at) replaces idx_events_session_type: covering reads for session stats, the hook dedupes and the import resume point (1.2 s → 20 ms); 64 MB cache_size and 256 MB mmap_size on both connections - WAL: the server sets wal_autocheckpoint = 0 and checkpoints PASSIVE every DASHBOARD_WAL_CHECKPOINT_MS (5 s) from the read worker's own writable connection; a failed checkpoint restores the automatic one (hook COMMIT p95 109 ms → 15 ms at 100 hooks/s) - tmux: one list-sessions answers a whole GET /api/lanes and the heal beat (liveSessions), shared for 1 s and cleared by this process's new/kill — GET /api/run's sync spawns had blocked 60 s of a 90 s run; the heal beat skips tmux when nothing runs; attach options chained into 2 spawns - hooks: TurnDuration/APIError deduped against one read per hook instead of a query per transcript entry (23 ms/hook on a 763-turn session); one lane scan per hook; hourly upserts skip rows that did not grow; frames are sent after the transaction commits (and after the pane binding); new_event carries its row id; a split pane's (slot 1–9) hooks no longer rebind the lane's session_id - watchdog liveness probe runs ps asynchronously; transcript newline scan via indexOf; startup subagent backfill fingerprints the files it already checked - pty attach: backpressure (pause past 1 MB unsent, resume under 256 KB) - static: hashed assets served from their pre-compressed .br/.gz sibling Client - hidden tabs neither refetch on WS events nor poll (useLiveRefresh, panes, lane cards, git header, changes panel, settings); no per-tab hourly /updates/check (the server already checks) - refetch storms throttled (workspace tree/session list 3 s, /api/run only on a run-key change, notification pane lookup only when shown); WS reconnect jitter; terminal retry backoff 1.5 → 30 s, stops on 1008 - heavier throttles for aggregates (15 s) and detail views; Monitor keepIfSame; GET in-flight dedupe in request() - lazy Dashboard/History, xterm (with the first terminal), lane modals, Sagi (only while enabled); only the active locale loads; Workspace chunk prefetched on a /workspace deep link - Sagi: no work while disabled, pupil via CSS variables, memo avatar - build: .br/.gz siblings, sourcemap hidden; service worker no longer caches /assets/ (cache v3 drops the old one) Tests: scripts/test-server.js drops the GIT_DIR-family variables a hook exports, so a suite run from a linked worktree's pre-commit can no longer commit into the real repository or set core.bare. Docs: ARCHITECTURE, DATABASE, API, DEPLOYMENT, client README, docs/plans/perf/README.md (audit, checklist, results).
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@@ -1,8 +1,10 @@
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/**
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* @file index.ts
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* @description i18next bootstrap for the dashboard client. Registers bundled JSON
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* locale files for English (`en`) and Vietnamese (`vi`), wires browser language detection, and exports the configured
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* singleton consumed by `react-i18next`.
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* @description i18next bootstrap for the dashboard client. Loads the JSON locale
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* files for English (`en`) and Vietnamese (`vi`) lazily — only the active language
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* (and the `en` fallback) — wires browser language detection, and exports the
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* configured singleton consumed by `react-i18next` plus `i18nReady`, the promise
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* the entry point awaits before the first render.
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*
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* ## Namespaces
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* Translations are split by feature area (`dashboard`, `sessions`, `settings`,
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@@ -38,14 +40,7 @@
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* scoped GET via `?sources=`. Health checks and import history surface in Settings.
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*
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* ## Internal dependencies
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* - `./locales/en/common.json`
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* - `./locales/vi/common.json`
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* - `./locales/en/nav.json`
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* - `./locales/vi/nav.json`
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* - `./locales/en/dashboard.json`
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* - `./locales/vi/dashboard.json`
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* - `./locales/en/sessions.json`
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* - `./locales/vi/sessions.json`
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* - `./locales/<lng>/<ns>.json` (lazy, via `import.meta.glob`)
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*
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* ## Testing pointers
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* - Prefer colocated `__tests__` with Vitest + Testing Library for UI.
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@@ -57,44 +52,30 @@
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* - `skills/file-headers/` — mandatory `@author` header policy.
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* ============================================================================= */
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import i18n from "i18next";
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import i18n, { type BackendModule, type ResourceKey } from "i18next";
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import { initReactI18next } from "react-i18next";
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import LanguageDetector from "i18next-browser-languagedetector";
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import common_en from "./locales/en/common.json";
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import common_vi from "./locales/vi/common.json";
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import nav_en from "./locales/en/nav.json";
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import nav_vi from "./locales/vi/nav.json";
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import dashboard_en from "./locales/en/dashboard.json";
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import dashboard_vi from "./locales/vi/dashboard.json";
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import sessions_en from "./locales/en/sessions.json";
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import sessions_vi from "./locales/vi/sessions.json";
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import activity_en from "./locales/en/activity.json";
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import activity_vi from "./locales/vi/activity.json";
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import analytics_en from "./locales/en/analytics.json";
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import analytics_vi from "./locales/vi/analytics.json";
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import workflows_en from "./locales/en/workflows.json";
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import workflows_vi from "./locales/vi/workflows.json";
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import settings_en from "./locales/en/settings.json";
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import settings_vi from "./locales/vi/settings.json";
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import kanban_en from "./locales/en/kanban.json";
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import kanban_vi from "./locales/vi/kanban.json";
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import errors_en from "./locales/en/errors.json";
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import errors_vi from "./locales/vi/errors.json";
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import updates_en from "./locales/en/updates.json";
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import updates_vi from "./locales/vi/updates.json";
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import ccConfig_en from "./locales/en/ccConfig.json";
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import ccConfig_vi from "./locales/vi/ccConfig.json";
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import codexConfig_en from "./locales/en/codexConfig.json";
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import codexConfig_vi from "./locales/vi/codexConfig.json";
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import run_en from "./locales/en/run.json";
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import run_vi from "./locales/vi/run.json";
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import alerts_en from "./locales/en/alerts.json";
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import alerts_vi from "./locales/vi/alerts.json";
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import splash_en from "./locales/en/splash.json";
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import splash_vi from "./locales/vi/splash.json";
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import lanes_en from "./locales/en/lanes.json";
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import lanes_vi from "./locales/vi/lanes.json";
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// Every locale file is its own lazy chunk (vite.config.ts groups them into one
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// chunk per language), so a page loads only the language it shows. i18next
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// reads them through this inline backend: `init` fetches the detected language
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// (plus the `en` fallback), and `changeLanguage` fetches a new one BEFORE it
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// switches, so no raw key is ever painted.
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const localeFiles = import.meta.glob<Record<string, unknown>>("./locales/*/*.json", {
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import: "default",
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});
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const lazyLocales: BackendModule = {
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type: "backend",
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init() {},
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read(lng, ns, cb) {
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const load = localeFiles[`./locales/${lng}/${ns}.json`];
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if (!load) return cb(null, {});
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load().then(
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(data) => cb(null, data as ResourceKey),
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(err) => cb(err, false)
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);
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},
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};
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/** Keep `<html lang>` on the active language, so a screen reader speaks the
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* page with the right voice and the browser hyphenates/translates correctly.
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@@ -105,50 +86,13 @@ export function syncDocumentLang(): void {
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}
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i18n.on("languageChanged", syncDocumentLang);
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i18n
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/** Resolves once the detected language's namespaces are loaded; `main.tsx`
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* awaits it before the first render. */
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export const i18nReady = i18n
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.use(lazyLocales)
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.use(LanguageDetector)
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.use(initReactI18next)
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.init({
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resources: {
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en: {
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common: common_en,
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nav: nav_en,
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dashboard: dashboard_en,
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sessions: sessions_en,
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activity: activity_en,
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analytics: analytics_en,
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workflows: workflows_en,
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settings: settings_en,
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kanban: kanban_en,
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errors: errors_en,
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updates: updates_en,
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ccConfig: ccConfig_en,
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codexConfig: codexConfig_en,
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run: run_en,
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alerts: alerts_en,
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splash: splash_en,
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lanes: lanes_en,
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},
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vi: {
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common: common_vi,
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nav: nav_vi,
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dashboard: dashboard_vi,
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sessions: sessions_vi,
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activity: activity_vi,
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analytics: analytics_vi,
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workflows: workflows_vi,
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settings: settings_vi,
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kanban: kanban_vi,
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errors: errors_vi,
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updates: updates_vi,
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ccConfig: ccConfig_vi,
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codexConfig: codexConfig_vi,
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run: run_vi,
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alerts: alerts_vi,
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splash: splash_vi,
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lanes: lanes_vi,
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},
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},
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supportedLngs: ["en", "vi"],
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nonExplicitSupportedLngs: true,
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fallbackLng: "en",
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@@ -182,5 +126,5 @@ i18n
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syncDocumentLang();
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/** Configured i18next instance — import side effects run {@link init}. */
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/** Configured i18next instance — import side effects start {@link init}. */
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export default i18n;
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