scripts/probe_cartesia.py opens a WebSocket to Cartesia Sonic, requests TTS
for a sample customer-service utterance, and measures first-audio-byte
latency over N iterations (default 20). Prints min/median/p95/mean. Uses the
raw Cartesia WS API (no SDK coupling). If CARTESIA_API_KEY is missing, prints
KEY_MISSING and exits 0. Also fixes the R1 Deepgram probe to use the raw WS
API instead of the churn-prone SDK listen client.
---ci---
phase: 1
milestone: v0.1
plan: 01
task: 01-03
status: execute
persona: backend-engineer
requirements:
covered: [REQ-VOICE-03, REQ-NFR-LAT-01]
---/ci---
Praxis CI
b8e6bc83c5