Files
praxis/client/package.json
T
Praxis CI 7b1b296430 feat(P01-02-05,P01-02-06): React client + latency readout
client/ — React + Vite + TypeScript scaffolded with the Pipecat client SDK
(@pipecat-ai/client-js) and SmallWebRTCTransport
(@pipecat-ai/small-webrtc-transport). useVoiceSession.ts hook manages mic
permission, WebRTC connect, audio playback, live transcript, and a latency
readout (captures the e2e_latency_ms metric the server emits). App.tsx is a
minimal one-page session UI: disclaimer, Start/End buttons, status badge,
latency readout (within/over 600ms budget), live transcript. vite.config.ts
proxies /pipecat + /health to the Python server (port 8789). npm run
typecheck + npm run build pass.

server/latency.py — LatencyObserver (a Pipecat FrameProcessor) timestamps
transcript-ready, LLM-first-token, TTS-first-audio, and playback-start per
turn, computes ASR→TTS-first-audio (the v0.1 latency target), and logs it
to console with a within/over-budget verdict. Wired into the pipeline
between STT/LLM/TTS so it observes without altering the frame stream. 5
unit tests pass (LatencyRecord e2e math + observer construction +
reset_turn). Full server suite: 18 passed.

---ci---
phase: 1
milestone: v0.1
plan: 02
task: 02-05,02-06
status: execute
persona: frontend-engineer,backend-engineer
requirements:
  covered: [REQ-VOICE-01, REQ-VOICE-02, REQ-VOICE-03, REQ-NFR-LAT-01]
---/ci---
2026-08-01 13:08:42 +00:00

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{
"name": "client",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc -b && vite build",
"typecheck": "tsc -b --noEmit",
"lint": "oxlint",
"preview": "vite preview",
"test": "echo 'client: no unit tests yet (v0.1 uses e2e smoke via server tests)' && exit 0"
},
"dependencies": {
"@pipecat-ai/client-js": "^1.13.0",
"@pipecat-ai/small-webrtc-transport": "^1.10.6",
"react": "^19.2.8",
"react-dom": "^19.2.8"
},
"devDependencies": {
"@types/node": "^24.13.3",
"@types/react": "^19.2.17",
"@types/react-dom": "^19.2.3",
"@vitejs/plugin-react": "^6.0.4",
"oxlint": "^1.75.0",
"typescript": "~6.0.2",
"vite": "^8.2.0"
}
}