| from __future__ import annotations |
|
|
| from dataclasses import dataclass |
| import re |
| from typing import Any |
|
|
|
|
| LOW_CONFIDENCE_THRESHOLD = 0.78 |
|
|
|
|
| @dataclass(frozen=True) |
| class RouteResult: |
| call_model: bool |
| reason: str |
| speech: str | None = None |
| next_question_id: str | None = None |
|
|
|
|
| _TARGETED_CONFIRMATIONS: tuple[tuple[re.Pattern[str], str, str], ...] = ( |
| ( |
| re.compile(r"\b(?:dizz|busy|spinn|balance)\w*\b", re.I), |
| "The audio may have mentioned dizziness or balance. Are you feeling dizzy—yes or no?", |
| "symptom.dizziness.present", |
| ), |
| ( |
| re.compile(r"\b(?:breath|breathe|air|chest)\w*\b", re.I), |
| "The audio may have mentioned breathing or your chest. Are you having unusual difficulty breathing—yes or no?", |
| "symptom.breathing_difficulty.present", |
| ), |
| ( |
| re.compile(r"\b(?:watch|wash|wearable|sensor|connect)\w*\b", re.I), |
| "The audio may have mentioned your wearable connection. Is your wearable connected right now?", |
| "device.connection_status", |
| ), |
| ( |
| re.compile(r"\b(?:head|headache|pain)\w*\b", re.I), |
| "The audio may have mentioned head pain. Do you have a headache—yes or no?", |
| "symptom.headache.present", |
| ), |
| ) |
|
|
|
|
| def route_request(request: dict[str, Any]) -> RouteResult: |
| """Bypass the LLM when the speech signal is not reliable enough to interpret.""" |
| if request.get("task_type") != "climber_checkin": |
| return RouteResult(True, "non_speech_or_robot_request") |
| transcript = request.get("transcript") |
| if not isinstance(transcript, dict): |
| return RouteResult(True, "no_transcript_gate") |
| confidence = transcript.get("confidence") |
| text = str(transcript.get("text", "")).strip() |
| polarity_ambiguous = bool(transcript.get("polarity_ambiguous", False)) |
| if isinstance(confidence, (int, float)) and confidence >= LOW_CONFIDENCE_THRESHOLD and not polarity_ambiguous: |
| return RouteResult(True, "speech_confidence_passed") |
|
|
| for pattern, speech, question_id in _TARGETED_CONFIRMATIONS: |
| if pattern.search(text): |
| return RouteResult(False, "low_confidence_targeted_confirmation", speech, question_id) |
| return RouteResult( |
| False, |
| "low_confidence_short_repeat", |
| "The audio was unclear. Please repeat only your current symptom or status in one short sentence.", |
| None, |
| ) |
|
|
