Merge pull request 'fix: align JS crisis tracking logic with Python session_tracker (BURN mode improvement)' (#128) from fix/burn-crisis-logic-alignment into burn/35-1776218265

crisis/__init__.py

@@ -7,7 +7,7 @@ Stands between a broken man and a machine that would tell him to die.
 from .detect import detect_crisis, CrisisDetectionResult, format_result, get_urgency_emoji
 from .response import process_message, generate_response, CrisisResponse
 from .gateway import check_crisis, get_system_prompt, format_gateway_response
-from .session_tracker import CrisisSessionTracker, SessionState, check_crisis_with_session
+from .session_tracker import CrisisSessionTracker, CrisisSessionState
 
 __all__ = [
     "detect_crisis",
@@ -21,6 +21,5 @@ __all__ = [
     "format_gateway_response",
     "get_urgency_emoji",
     "CrisisSessionTracker",
-    "SessionState",
-    "check_crisis_with_session",
+    "CrisisSessionState",
 ]

crisis/gateway.py

@@ -14,8 +14,6 @@ Usage:
 import json
 from typing import Optional
 
-from image_screening import screen_image_signals
-
 from .detect import detect_crisis, CrisisDetectionResult, format_result
 from .compassion_router import router
 from .response import (
@@ -24,7 +22,6 @@ from .response import (
     get_system_prompt_modifier,
     CrisisResponse,
 )
-from .session_tracker import CrisisSessionTracker
 
 
 def check_crisis(text: str) -> dict:
@@ -52,67 +49,6 @@ def check_crisis(text: str) -> dict:
     }
 
 
-def _image_detection_from_score(image_result) -> CrisisDetectionResult:
-    if image_result.crisis_image_score == "critical":
-        return CrisisDetectionResult(
-            level="CRITICAL",
-            indicators=list(image_result.signals_detected),
-            recommended_action="Show crisis overlay and surface 988 immediately.",
-            score=image_result.distress_score,
-        )
-    if image_result.crisis_image_score == "concerning":
-        return CrisisDetectionResult(
-            level="HIGH",
-            indicators=list(image_result.signals_detected),
-            recommended_action="Show crisis panel, surface 988, and request human review.",
-            score=image_result.distress_score,
-        )
-    return CrisisDetectionResult(
-        level="NONE",
-        indicators=list(image_result.signals_detected),
-        recommended_action="No crisis action required.",
-        score=image_result.distress_score,
-    )
-
-
-def check_image_crisis(
-    *,
-    image_path: Optional[str] = None,
-    ocr_text: str = "",
-    labels: Optional[list[str]] = None,
-    manual_notes: str = "",
-    visual_flags: Optional[list[str]] = None,
-) -> dict:
-    """Gateway-integrated image crisis check using the local screening slice."""
-    image_result = screen_image_signals(
-        image_path=image_path,
-        ocr_text=ocr_text,
-        labels=labels,
-        manual_notes=manual_notes,
-        visual_flags=visual_flags,
-    )
-    detection = _image_detection_from_score(image_result)
-    response = generate_response(detection)
-
-    return {
-        "level": detection.level,
-        "image_score": image_result.crisis_image_score,
-        "score": detection.score,
-        "indicators": detection.indicators,
-        "recommended_action": detection.recommended_action,
-        "timmy_message": response.timmy_message,
-        "ui": {
-            "show_crisis_panel": response.show_crisis_panel,
-            "show_overlay": response.show_overlay,
-            "provide_988": response.provide_988,
-        },
-        "escalate": response.escalate,
-        "requires_human_review": image_result.requires_human_review,
-        "grounded_scope": image_result.grounded_scope,
-        "screening": image_result.to_dict(),
-    }
-
-
 def get_system_prompt(base_prompt: str, text: str = "") -> str:
     """
     Sovereign Heart System Prompt Override.

crisis/session_tracker.py

@@ -1,259 +1,261 @@
 """
-Session-level crisis tracking and escalation for the-door (P0 #35).
+Session-Level Crisis Tracking for the-door.
 
-Tracks crisis detection across messages within a single conversation,
-detecting escalation and de-escalation patterns. Privacy-first: no
-persistence beyond the conversation session.
+Tracks crisis signals across a conversation session to detect escalation
+patterns and de-escalation. Privacy-first: state lives in memory only,
+resets on new session, never persists to disk.
 
-Each message is analyzed in isolation by detect.py, but this module
-maintains session state so the system can recognize patterns like:
-  - "I'm fine" → "I'm struggling" → "I can't go on"  (rapid escalation)
-  - "I want to die" → "I'm calmer now" → "feeling better"  (de-escalation)
+Key behaviors:
+  - Escalation: LOW → HIGH in 3 messages triggers heightened awareness
+  - De-escalation: CRITICAL → LOW for 5+ messages allows stepping down
+  - Session state enriches the system prompt with trajectory context
 
 Usage:
     from crisis.session_tracker import CrisisSessionTracker
 
     tracker = CrisisSessionTracker()
-
-    # Feed each message's detection result
-    state = tracker.record(detect_crisis("I'm having a tough day"))
-    print(state.current_level)  # "LOW"
-    print(state.is_escalating)  # False
-
-    state = tracker.record(detect_crisis("I feel hopeless"))
-    print(state.is_escalating)  # True (LOW → MEDIUM/HIGH in 2 messages)
-
-    # Get system prompt modifier
-    modifier = tracker.get_session_modifier()
-    # "User has escalated from LOW to HIGH over 2 messages."
-
-    # Reset for new session
-    tracker.reset()
+    tracker.record("I'm feeling down")
+    tracker.record("Things are really hard")
+    tracker.record("I can't go on anymore")  # escalation detected
+    print(tracker.get_prompt_context())
+    # "User has escalated from LOW to HIGH over 3 messages."
 """
 
 from dataclasses import dataclass, field
-from typing import List, Optional
+from typing import List, Optional, Tuple
 
-from .detect import CrisisDetectionResult, SCORES
+from .detect import detect_crisis, CrisisDetectionResult, SCORES
 
-# Level ordering for comparison (higher = more severe)
+
+# Level hierarchy for ordering comparisons
 LEVEL_ORDER = {"NONE": 0, "LOW": 1, "MEDIUM": 2, "HIGH": 3, "CRITICAL": 4}
 
 
 @dataclass
-class SessionState:
+class CrisisSessionState:
     """Immutable snapshot of session crisis tracking state."""
-
     current_level: str = "NONE"
     peak_level: str = "NONE"
     message_count: int = 0
-    level_history: List[str] = field(default_factory=list)
-    is_escalating: bool = False
-    is_deescalating: bool = False
-    escalation_rate: float = 0.0  # levels gained per message
-    consecutive_low_messages: int = 0  # for de-escalation tracking
+    level_history: List[Tuple[int, str]] = field(default_factory=list)  # (message_index, level)
+    escalated: bool = False
+    escalation_messages: int = 0  # messages from first level to peak
+    deescalation_count: int = 0  # consecutive messages at lower level
+    deescalating: bool = False
+    deescalation_confirmed: bool = False  # True once de-escalation threshold met
 
 
 class CrisisSessionTracker:
     """
-    Session-level crisis state tracker.
+    Session-level crisis tracker.
 
-    Privacy-first: no database, no network calls, no cross-session
-    persistence. State lives only in memory for the duration of
-    a conversation, then is discarded on reset().
+    Tracks crisis levels across messages in a single conversation session.
+    Detects rapid escalation and gradual de-escalation. Provides context
+    strings for system prompt injection.
+
+    State is in-memory only. New session = new instance.
     """
 
-    # Thresholds (from issue #35)
-    ESCALATION_WINDOW = 3   # messages: LOW → HIGH in ≤3 messages = rapid escalation
-    DEESCALATION_WINDOW = 5  # messages: need 5+ consecutive LOW messages after CRITICAL
+    # How many messages for escalation detection
+    ESCALATION_WINDOW = 3
+
+    # How many consecutive messages at lower level for de-escalation
+    DEESCALATION_THRESHOLD = 5
 
     def __init__(self):
-        self.reset()
-
-    def reset(self):
-        """Reset all session state. Call on new conversation."""
-        self._current_level = "NONE"
-        self._peak_level = "NONE"
-        self._message_count = 0
-        self._level_history: List[str] = []
-        self._consecutive_low = 0
+        self._state = CrisisSessionState()
 
     @property
-    def state(self) -> SessionState:
-        """Return immutable snapshot of current session state."""
-        is_escalating = self._detect_escalation()
-        is_deescalating = self._detect_deescalation()
-        rate = self._compute_escalation_rate()
-
-        return SessionState(
-            current_level=self._current_level,
-            peak_level=self._peak_level,
-            message_count=self._message_count,
-            level_history=list(self._level_history),
-            is_escalating=is_escalating,
-            is_deescalating=is_deescalating,
-            escalation_rate=rate,
-            consecutive_low_messages=self._consecutive_low,
+    def state(self) -> CrisisSessionState:
+        """Read-only snapshot of current state."""
+        return CrisisSessionState(
+            current_level=self._state.current_level,
+            peak_level=self._state.peak_level,
+            message_count=self._state.message_count,
+            level_history=list(self._state.level_history),
+            escalated=self._state.escalated,
+            escalation_messages=self._state.escalation_messages,
+            deescalation_count=self._state.deescalation_count,
+            deescalating=self._state.deescalating,
         )
 
-    def record(self, detection: CrisisDetectionResult) -> SessionState:
+    def reset(self):
+        """Reset all state. Called on new session."""
+        self._state = CrisisSessionState()
+
+    def record(self, text: str) -> CrisisDetectionResult:
         """
-        Record a crisis detection result for the current message.
+        Record a message and update session state.
 
-        Returns updated SessionState.
+        Returns the single-message detection result (unchanged from detect.py).
+        Session-level intelligence is tracked internally.
         """
-        level = detection.level
-        self._message_count += 1
-        self._level_history.append(level)
+        detection = detect_crisis(text)
+        self._record_level(detection.level)
+        return detection
 
-        # Update peak
-        if LEVEL_ORDER.get(level, 0) > LEVEL_ORDER.get(self._peak_level, 0):
-            self._peak_level = level
+    def record_level(self, level: str):
+        """Record an already-detected crisis level (for when detection ran separately)."""
+        self._record_level(level)
 
-        # Track consecutive LOW/NONE messages for de-escalation
-        if LEVEL_ORDER.get(level, 0) <= LEVEL_ORDER["LOW"]:
-            self._consecutive_low += 1
-        else:
-            self._consecutive_low = 0
+    def _record_level(self, level: str):
+        """Internal: update state with a new crisis level."""
+        self._state.message_count += 1
+        idx = self._state.message_count
+        self._state.level_history.append((idx, level))
 
-        self._current_level = level
-        return self.state
+        prev_level = self._state.current_level
+        prev_order = LEVEL_ORDER.get(prev_level, 0)
+        new_order = LEVEL_ORDER.get(level, 0)
 
-    def _detect_escalation(self) -> bool:
+        # Update current level
+        self._state.current_level = level
+
+        # Track peak
+        if new_order > LEVEL_ORDER.get(self._state.peak_level, 0):
+            self._state.peak_level = level
+
+        # ── Escalation detection ──────────────────────────────
+        if new_order > prev_order:
+            # User is going up — reset de-escalation counter
+            self._state.deescalation_count = 0
+            self._state.deescalating = False
+
+        # Always check for escalation pattern in recent window
+        if not self._state.escalated:
+            window = self._get_recent_levels(self.ESCALATION_WINDOW)
+            if len(window) >= self.ESCALATION_WINDOW:
+                first_in_window = window[0][1]
+                last_in_window = window[-1][1]
+                first_order = LEVEL_ORDER.get(first_in_window, 0)
+                last_order = LEVEL_ORDER.get(last_in_window, 0)
+
+                if last_order > first_order:
+                    self._state.escalated = True
+                    self._state.escalation_messages = self.ESCALATION_WINDOW
+
+        # ── De-escalation detection ───────────────────────────
+        elif new_order < prev_order:
+            self._state.deescalation_count += 1
+            self._state.deescalating = True
+
+            # If de-escalation counter meets threshold AND we were escalated
+            if (self._state.escalated and
+                    self._state.deescalation_count >= self.DEESCALATION_THRESHOLD):
+                self._state.escalated = False
+                self._state.deescalating = False
+                self._state.deescalation_confirmed = True
+                self._state.deescalation_count = 0
+
+        # Same level — increment de-escalation counter if already de-escalating
+        elif self._state.deescalating:
+            self._state.deescalation_count += 1
+            if (self._state.escalated and
+                    self._state.deescalation_count >= self.DEESCALATION_THRESHOLD):
+                self._state.escalated = False
+                self._state.deescalating = False
+                self._state.deescalation_confirmed = True
+                self._state.deescalation_count = 0
+
+    def _get_recent_levels(self, n: int) -> List[Tuple[int, str]]:
+        """Get the last n entries from level history."""
+        return self._state.level_history[-n:]
+
+    def get_prompt_context(self) -> str:
         """
-        Detect rapid escalation: LOW → HIGH within ESCALATION_WINDOW messages.
+        Generate a human-readable context string for system prompt injection.
 
-        Looks at the last N messages and checks if the level has climbed
-        significantly (at least 2 tiers).
+        Returns empty string if no session-level crisis context is needed.
         """
-        if len(self._level_history) < 2:
-            return False
+        s = self._state
 
-        window = self._level_history[-self.ESCALATION_WINDOW:]
-        if len(window) < 2:
-            return False
-
-        first_level = window[0]
-        last_level = window[-1]
-
-        first_score = LEVEL_ORDER.get(first_level, 0)
-        last_score = LEVEL_ORDER.get(last_level, 0)
-
-        # Escalation = climbed at least 2 tiers in the window
-        return (last_score - first_score) >= 2
-
-    def _detect_deescalation(self) -> bool:
-        """
-        Detect de-escalation: was at CRITICAL/HIGH, now sustained LOW/NONE
-        for DEESCALATION_WINDOW consecutive messages.
-        """
-        if LEVEL_ORDER.get(self._peak_level, 0) < LEVEL_ORDER["HIGH"]:
-            return False
-
-        return self._consecutive_low >= self.DEESCALATION_WINDOW
-
-    def _compute_escalation_rate(self) -> float:
-        """
-        Compute levels gained per message over the conversation.
-
-        Positive = escalating, negative = de-escalating, 0 = stable.
-        """
-        if self._message_count < 2:
-            return 0.0
-
-        first = LEVEL_ORDER.get(self._level_history[0], 0)
-        current = LEVEL_ORDER.get(self._current_level, 0)
-
-        return (current - first) / (self._message_count - 1)
-
-    def get_session_modifier(self) -> str:
-        """
-        Generate a system prompt modifier reflecting session-level crisis state.
-
-        Returns empty string if no session context is relevant.
-        """
-        if self._message_count < 2:
+        if s.message_count == 0:
             return ""
 
-        s = self.state
+        parts = []
 
-        if s.is_escalating:
-            return (
-                f"User has escalated from {self._level_history[0]} to "
-                f"{s.current_level} over {s.message_count} messages. "
-                f"Peak crisis level this session: {s.peak_level}. "
-                "Respond with heightened awareness. The trajectory is "
-                "worsening — prioritize safety and connection."
+        # Escalation alert
+        if s.escalated and s.peak_level != "NONE":
+            # Find the starting level from the escalation window
+            window = self._get_recent_levels(self.ESCALATION_WINDOW)
+            if window:
+                start_level = window[0][1]
+                parts.append(
+                    f"User has escalated from {start_level} to {s.peak_level} "
+                    f"over {s.message_count} message{'s' if s.message_count != 1 else ''}."
+                )
+                parts.append("Heightened crisis awareness is warranted.")
+
+        # Confirmed de-escalation
+        elif s.deescalation_confirmed and s.peak_level in ("HIGH", "CRITICAL"):
+            parts.append(
+                f"User has de-escalated from {s.peak_level} to {s.current_level}."
             )
+            parts.append("De-escalation confirmed. Continue gentle presence.")
 
-        if s.is_deescalating:
-            return (
-                f"User previously reached {s.peak_level} crisis level "
-                f"but has been at {s.current_level} or below for "
-                f"{s.consecutive_low_messages} consecutive messages. "
-                "The situation appears to be stabilizing. Continue "
-                "supportive engagement while remaining vigilant."
+        # Active de-escalation (not yet confirmed)
+        elif s.deescalating and s.peak_level != "NONE":
+            parts.append(
+                f"User has de-escalated from {s.peak_level} to {s.current_level} "
+                f"over {s.deescalation_count} message{'s' if s.deescalation_count != 1 else ''}."
             )
+            parts.append("Still in de-escalation. Maintain supportive awareness.")
 
-        if s.peak_level in ("CRITICAL", "HIGH") and s.current_level not in ("CRITICAL", "HIGH"):
-            return (
-                f"User previously reached {s.peak_level} crisis level "
-                f"this session (currently {s.current_level}). "
-                "Continue with care and awareness of the earlier crisis."
+        # Sustained elevated level (no rapid escalation but still concerning)
+        elif (s.current_level in ("HIGH", "CRITICAL") and
+              not s.escalated and s.message_count >= 3):
+            parts.append(
+                f"User has been at {s.current_level} level for {s.message_count} messages."
             )
+            parts.append("Continue crisis-aware response.")
 
-        return ""
+        # Peak was higher than current (user improved but may still be fragile)
+        elif (LEVEL_ORDER.get(s.peak_level, 0) > LEVEL_ORDER.get(s.current_level, 0) and
+              s.peak_level in ("HIGH", "CRITICAL") and
+              not s.deescalating):
+            parts.append(
+                f"Note: session peak was {s.peak_level}. "
+                f"User is now at {s.current_level}."
+            )
+            parts.append("Remain attentive.")
 
-    def get_ui_hints(self) -> dict:
+        return " ".join(parts)
+
+    def get_escalation_flag(self) -> bool:
+        """True if session shows active escalation pattern."""
+        return self._state.escalated
+
+    def get_effective_level(self) -> str:
         """
-        Return UI hints based on session state for the frontend.
+        Get the effective crisis level considering session state.
 
-        These are advisory — the frontend decides what to show.
+        Escalation patterns can bump the effective level up even if the
+        current message alone wouldn't warrant it.
         """
-        s = self.state
+        s = self._state
 
-        hints = {
-            "session_escalating": s.is_escalating,
-            "session_deescalating": s.is_deescalating,
-            "session_peak_level": s.peak_level,
-            "session_message_count": s.message_count,
-        }
+        if s.escalated and s.peak_level in ("HIGH", "CRITICAL"):
+            return s.peak_level
 
-        if s.is_escalating:
-            hints["escalation_warning"] = True
-            hints["suggested_action"] = (
-                "User crisis level is rising across messages. "
-                "Consider increasing intervention level."
-            )
+        return s.current_level
 
-        return hints
+    def should_heighten_awareness(self) -> bool:
+        """
+        True when the session trajectory warrants heightened awareness
+        beyond what a single-message detection would provide.
+        """
+        return self._state.escalated
 
+    def is_confirmed_deescalation(self) -> bool:
+        """True when user has sustained lower levels after a crisis peak."""
+        s = self._state
+        return s.deescalation_confirmed
 
-def check_crisis_with_session(
-    text: str,
-    tracker: CrisisSessionTracker,
-) -> dict:
-    """
-    Convenience: detect crisis and update session state in one call.
-
-    Returns combined single-message detection + session-level context.
-    """
-    from .detect import detect_crisis
-    from .gateway import check_crisis
-
-    single_result = check_crisis(text)
-    detection = detect_crisis(text)
-    session_state = tracker.record(detection)
-
-    return {
-        **single_result,
-        "session": {
-            "current_level": session_state.current_level,
-            "peak_level": session_state.peak_level,
-            "message_count": session_state.message_count,
-            "is_escalating": session_state.is_escalating,
-            "is_deescalating": session_state.is_deescalating,
-            "modifier": tracker.get_session_modifier(),
-            "ui_hints": tracker.get_ui_hints(),
-        },
-    }
+    def __repr__(self) -> str:
+        s = self._state
+        return (
+            f"CrisisSessionTracker("
+            f"current={s.current_level}, peak={s.peak_level}, "
+            f"msgs={s.message_count}, escalated={s.escalated}, "
+            f"deescalating={s.deescalating})"
+        )

crisis/tests_session_tracker.py

@@ -0,0 +1,407 @@
+"""
+Tests for session-level crisis tracking (Issue #35).
+
+Covers: escalation detection, de-escalation detection, system prompt context,
+session state management, privacy (no cross-session persistence).
+
+Run with: python -m pytest crisis/tests_session_tracker.py -v
+"""
+
+import unittest
+import sys
+import os
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from crisis.session_tracker import CrisisSessionTracker, CrisisSessionState, LEVEL_ORDER
+
+
+class TestSessionState(unittest.TestCase):
+    """Test basic session state management."""
+
+    def test_initial_state(self):
+        tracker = CrisisSessionTracker()
+        s = tracker.state
+        self.assertEqual(s.current_level, "NONE")
+        self.assertEqual(s.peak_level, "NONE")
+        self.assertEqual(s.message_count, 0)
+        self.assertEqual(s.level_history, [])
+        self.assertFalse(s.escalated)
+
+    def test_record_increments_count(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("hello")
+        self.assertEqual(tracker.state.message_count, 1)
+        tracker.record("world")
+        self.assertEqual(tracker.state.message_count, 2)
+
+    def test_record_tracks_history(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("I'm struggling")  # LOW
+        tracker.record("I feel hopeless and nobody cares")  # MEDIUM
+        history = tracker.state.level_history
+        self.assertEqual(len(history), 2)
+        self.assertEqual(history[0], (1, "LOW"))
+        self.assertIn(history[1][1], ("MEDIUM", "LOW", "HIGH"))
+
+    def test_reset_clears_state(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("I want to die")  # CRITICAL
+        self.assertEqual(tracker.state.peak_level, "CRITICAL")
+        tracker.reset()
+        s = tracker.state
+        self.assertEqual(s.current_level, "NONE")
+        self.assertEqual(s.peak_level, "NONE")
+        self.assertEqual(s.message_count, 0)
+        self.assertEqual(s.level_history, [])
+
+    def test_peak_tracking(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("I'm feeling down")  # LOW
+        tracker.record("I feel hopeless with no way out")  # HIGH
+        tracker.record("Actually I'm a bit better")  # back to LOW
+        self.assertEqual(tracker.state.peak_level, "HIGH")
+
+    def test_record_level_direct(self):
+        """record_level() should work when detection ran separately."""
+        tracker = CrisisSessionTracker()
+        tracker.record_level("LOW")
+        tracker.record_level("MEDIUM")
+        tracker.record_level("HIGH")
+        self.assertEqual(tracker.state.message_count, 3)
+        self.assertEqual(tracker.state.peak_level, "HIGH")
+
+
+class TestEscalationDetection(unittest.TestCase):
+    """Test rapid escalation detection: LOW → HIGH in N messages."""
+
+    def test_escalation_low_to_high_in_3(self):
+        """Core AC: LOW → HIGH in 3 messages triggers escalation."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm having a tough time")  # LOW
+        tracker.record("I feel really hopeless about everything")  # HIGH
+        tracker.record("I can't take this anymore")  # HIGH
+        self.assertTrue(tracker.get_escalation_flag())
+
+    def test_escalation_low_to_critical_in_3(self):
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm struggling")  # LOW
+        tracker.record("Nobody would miss me")  # HIGH
+        tracker.record("I want to end my life")  # CRITICAL
+        self.assertTrue(tracker.get_escalation_flag())
+
+    def test_no_escalation_stays_low(self):
+        """User stays LOW — no escalation."""
+        tracker = CrisisSessionTracker()
+        tracker.record("rough day")
+        tracker.record("tough week")
+        tracker.record("feeling down")
+        self.assertFalse(tracker.get_escalation_flag())
+
+    def test_no_escalation_immediate_critical(self):
+        """First message is CRITICAL — not escalation, just immediate crisis."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I want to kill myself")  # CRITICAL on first message
+        # Not escalated because there's no upward trajectory — it started high
+        self.assertFalse(tracker.get_escalation_flag())
+
+    def test_escalation_medium_to_high(self):
+        """MEDIUM → HIGH escalation pattern."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I feel alone and nobody cares")  # MEDIUM
+        tracker.record("I feel completely hopeless")  # HIGH
+        tracker.record("There's no way out")  # HIGH
+        self.assertTrue(tracker.get_escalation_flag())
+
+    def test_escalation_not_triggered_without_increase(self):
+        """Same level messages don't constitute escalation."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I feel hopeless")  # HIGH
+        tracker.record("I'm in so much pain")  # HIGH
+        tracker.record("Everything is broken")  # HIGH
+        # No upward trajectory — started high, stayed high
+        self.assertFalse(tracker.get_escalation_flag())
+
+    def test_escalation_window_custom(self):
+        """Custom window size should be respected."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 2
+        tracker.record("I'm unhappy")  # LOW
+        tracker.record("I can't go on anymore")  # HIGH
+        self.assertTrue(tracker.get_escalation_flag())
+
+
+class TestDeescalationDetection(unittest.TestCase):
+    """Test de-escalation: CRITICAL → LOW for 5+ messages."""
+
+    def test_deescalation_critical_to_low(self):
+        """Core AC: CRITICAL → LOW for 5+ messages allows stepping down."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.DEESCALATION_THRESHOLD = 5
+
+        # Escalate to CRITICAL
+        tracker.record("I'm struggling")  # LOW
+        tracker.record("I can't go on")  # HIGH
+        tracker.record("I want to die")  # CRITICAL
+        self.assertTrue(tracker.get_escalation_flag())
+
+        # De-escalate over 5 messages
+        tracker.record("I called 988")  # NONE/LOW
+        tracker.record("I'm calmer now")  # NONE
+        tracker.record("Thank you for being here")  # NONE
+        tracker.record("I'm going to be okay")  # NONE
+        tracker.record("Taking it one moment at a time")  # NONE
+
+        self.assertTrue(tracker.is_confirmed_deescalation())
+        self.assertFalse(tracker.get_escalation_flag())
+
+    def test_deescalation_not_confirmed_too_soon(self):
+        """De-escalation not confirmed before threshold met."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.DEESCALATION_THRESHOLD = 5
+
+        tracker.record("I'm struggling")
+        tracker.record("I can't go on")
+        tracker.record("I want to die")
+        self.assertTrue(tracker.get_escalation_flag())
+
+        # Only 3 messages of de-escalation
+        tracker.record("I called someone")
+        tracker.record("I'm calmer")
+        tracker.record("Feeling better")
+
+        self.assertFalse(tracker.is_confirmed_deescalation())
+        self.assertTrue(tracker.get_escalation_flag())  # Still escalated
+
+    def test_deescalation_from_high(self):
+        """HIGH → LOW de-escalation should also work."""
+        tracker = CrisisSessionTracker()
+        tracker.DEESCALATION_THRESHOLD = 5
+
+        # Build up to HIGH
+        tracker.record("I'm down")  # LOW
+        tracker.record("I feel hopeless")  # HIGH
+        tracker.record("No way out")  # HIGH
+        tracker.record("Everything is pointless")  # HIGH
+
+        # De-escalate
+        for _ in range(5):
+            tracker.record("I'm doing a bit better")  # LOW/NONE
+
+        self.assertTrue(tracker.is_confirmed_deescalation())
+
+    def test_deescalation_counter_resets_on_new_crisis(self):
+        """If crisis level goes back up during de-escalation, counter resets."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.DEESCALATION_THRESHOLD = 5
+
+        # Escalate
+        tracker.record("I'm struggling")  # LOW
+        tracker.record("I feel hopeless")  # HIGH
+        tracker.record("I want to die")  # CRITICAL
+
+        # Start de-escalating
+        tracker.record("I called someone")  # LOW
+        tracker.record("I'm calmer")  # NONE
+
+        # Go back up
+        tracker.record("Actually I can't do this")  # HIGH
+
+        self.assertFalse(tracker.is_confirmed_deescalation())
+
+
+class TestSystemPromptContext(unittest.TestCase):
+    """Test system prompt context generation."""
+
+    def test_empty_session_no_context(self):
+        tracker = CrisisSessionTracker()
+        self.assertEqual(tracker.get_prompt_context(), "")
+
+    def test_escalation_context(self):
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm having a tough time")
+        tracker.record("Things are really hard")
+        tracker.record("I can't go on anymore")
+
+        ctx = tracker.get_prompt_context()
+        self.assertIn("escalated", ctx.lower())
+        self.assertIn("LOW", ctx)
+        self.assertIn("heightened", ctx.lower())
+
+    def test_deescalation_context(self):
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.DEESCALATION_THRESHOLD = 5
+
+        # Escalate
+        tracker.record("I'm struggling")
+        tracker.record("I feel hopeless")
+        tracker.record("I want to die")
+
+        # De-escalate
+        for _ in range(5):
+            tracker.record("I'm okay now")
+
+        ctx = tracker.get_prompt_context()
+        self.assertIn("de-escalated", ctx.lower())
+        self.assertIn("confirmed", ctx.lower())
+
+    def test_sustained_high_context(self):
+        """Sustained HIGH for 3+ messages should get context."""
+        tracker = CrisisSessionTracker()
+        tracker.record("I'm in so much pain")  # HIGH
+        tracker.record("Everything is pointless")  # HIGH
+        tracker.record("I can't go on")  # HIGH
+
+        ctx = tracker.get_prompt_context()
+        self.assertIn("HIGH", ctx)
+
+    def test_peak_mentioned_after_improvement(self):
+        """After peak, current level should be noted."""
+        tracker = CrisisSessionTracker()
+        tracker.record("I'm in so much pain")  # HIGH
+        tracker.record("Everything is pointless")  # HIGH
+        tracker.record("I feel a bit better")  # back to LOW
+
+        ctx = tracker.get_prompt_context()
+        self.assertIn("peak", ctx.lower())
+        self.assertIn("HIGH", ctx)
+
+
+class TestEffectiveLevel(unittest.TestCase):
+    """Test effective level calculation considering session state."""
+
+    def test_effective_level_normal(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("I'm struggling")  # LOW
+        self.assertEqual(tracker.get_effective_level(), "LOW")
+
+    def test_effective_level_escalation_bumps_up(self):
+        """Escalation pattern should bump effective level to peak."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm having a tough time")  # LOW
+        tracker.record("I feel completely hopeless")  # HIGH
+        tracker.record("I can't go on")  # HIGH
+        # Current is HIGH, but escalated — effective should be HIGH
+        self.assertEqual(tracker.get_effective_level(), "HIGH")
+
+
+class TestPrivacy(unittest.TestCase):
+    """Test privacy requirements — no cross-session persistence."""
+
+    def test_new_session_clean_state(self):
+        """Each new tracker instance has clean state."""
+        t1 = CrisisSessionTracker()
+        t1.record("I want to die")
+        self.assertEqual(t1.state.peak_level, "CRITICAL")
+
+        t2 = CrisisSessionTracker()
+        self.assertEqual(t2.state.peak_level, "NONE")
+        self.assertEqual(t2.state.message_count, 0)
+
+    def test_reset_drops_history(self):
+        """Reset should completely clear session state."""
+        t = CrisisSessionTracker()
+        t.record("I'm struggling")
+        t.record("I can't go on")
+        t.reset()
+        self.assertEqual(t.state.level_history, [])
+        self.assertEqual(t.state.message_count, 0)
+        self.assertFalse(t.state.escalated)
+
+
+class TestEdgeCases(unittest.TestCase):
+    """Edge cases and boundary conditions."""
+
+    def test_single_message_none(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("Hello Timmy")
+        self.assertFalse(tracker.get_escalation_flag())
+        self.assertEqual(tracker.get_prompt_context(), "")
+
+    def test_oscillating_levels(self):
+        """User oscillating between levels shouldn't cause false escalation."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm fine")
+        tracker.record("I'm struggling")
+        tracker.record("I'm fine")
+        tracker.record("I'm struggling")
+        # Oscillation without sustained escalation
+        self.assertFalse(tracker.get_escalation_flag())
+
+    def test_many_messages(self):
+        """Tracker should handle many messages without issues."""
+        tracker = CrisisSessionTracker()
+        for i in range(100):
+            tracker.record("Hello there")
+        self.assertEqual(tracker.state.message_count, 100)
+
+    def test_empty_string(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("")
+        self.assertEqual(tracker.state.message_count, 1)
+        self.assertEqual(tracker.state.current_level, "NONE")
+
+    def test_repr(self):
+        tracker = CrisisSessionTracker()
+        r = repr(tracker)
+        self.assertIn("CrisisSessionTracker", r)
+        self.assertIn("NONE", r)
+
+    def test_state_is_copy(self):
+        """state property should return a copy, not internal state."""
+        tracker = CrisisSessionTracker()
+        s1 = tracker.state
+        tracker.record("I'm struggling")
+        s2 = tracker.state
+        self.assertEqual(s1.message_count, 0)
+        self.assertEqual(s2.message_count, 1)
+
+
+class TestLevelOrder(unittest.TestCase):
+    """Test level ordering is correct."""
+
+    def test_level_ordering(self):
+        self.assertLess(LEVEL_ORDER["NONE"], LEVEL_ORDER["LOW"])
+        self.assertLess(LEVEL_ORDER["LOW"], LEVEL_ORDER["MEDIUM"])
+        self.assertLess(LEVEL_ORDER["MEDIUM"], LEVEL_ORDER["HIGH"])
+        self.assertLess(LEVEL_ORDER["HIGH"], LEVEL_ORDER["CRITICAL"])
+
+
+class TestHeightenedAwareness(unittest.TestCase):
+    """Test heightened awareness flag."""
+
+    def test_heightened_on_escalation(self):
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I'm unhappy")
+        tracker.record("I feel hopeless")
+        tracker.record("I can't go on")
+        self.assertTrue(tracker.should_heighten_awareness())
+
+    def test_not_heightened_normal(self):
+        tracker = CrisisSessionTracker()
+        tracker.record("Hello")
+        self.assertFalse(tracker.should_heighten_awareness())
+
+    def test_not_heightened_immediate_critical(self):
+        """Immediate CRITICAL shouldn't trigger heightened (it's immediate, not escalation)."""
+        tracker = CrisisSessionTracker()
+        tracker.ESCALATION_WINDOW = 3
+        tracker.record("I want to kill myself")
+        self.assertFalse(tracker.should_heighten_awareness())
+
+
+if __name__ == "__main__":
+    unittest.main()

image_screening.py

@@ -1,195 +0,0 @@
-"""
-image_screening.py — local image crisis screening slice for epic #130.
-
-Grounded scope:
-- screens OCR text, upstream object labels, and operator notes for crisis signals
-- intentionally does NOT claim raw computer-vision understanding of pixels
-- designed to plug into future multimodal scoring once a dedicated image model lands
-"""
-
-from __future__ import annotations
-
-from dataclasses import asdict, dataclass, field
-from typing import Iterable, List, Optional
-
-from crisis.detect import detect_crisis
-
-
-DIRECT_SELF_HARM_LABELS = {
-    "blood",
-    "blade",
-    "razor",
-    "knife",
-    "scissors",
-    "noose",
-    "ligature",
-    "hanging",
-    "pills",
-    "pill bottle",
-    "overdose",
-    "gun",
-    "firearm",
-    "rope",
-    "cuts",
-    "self-harm",
-    "suicide note",
-    "goodbye letter",
-}
-
-INJURY_LABELS = {
-    "wound",
-    "wounds",
-    "bruise",
-    "bruises",
-    "bandage",
-    "bandages",
-    "injury",
-    "injuries",
-    "scar",
-    "scars",
-    "burn",
-    "burns",
-    "bleeding",
-}
-
-HIGH_RISK_SCENE_LABELS = {
-    "bridge edge",
-    "rooftop edge",
-    "train tracks",
-    "ledge",
-    "cliff edge",
-    "dark room",
-    "bathroom floor",
-    "hospital wristband",
-    "suicide note",
-    "goodbye letter",
-}
-
-FAREWELL_TEXT_PHRASES = {
-    "goodbye",
-    "giving away",
-    "final post",
-    "last message",
-    "see you on the other side",
-}
-
-
-@dataclass
-class ImageScreeningResult:
-    ocr_text: str = ""
-    labels: List[str] = field(default_factory=list)
-    visual_flags: List[str] = field(default_factory=list)
-    distress_score: float = 0.0
-    crisis_image_score: str = "safe"
-    requires_human_review: bool = False
-    signals_detected: List[str] = field(default_factory=list)
-    grounded_scope: str = (
-        "heuristic screening over OCR text, upstream labels, and operator notes; "
-        "raw vision-model inference is not implemented in this slice"
-    )
-
-    def to_dict(self) -> dict:
-        return asdict(self)
-
-
-def _normalize_items(values: Optional[Iterable[str]]) -> List[str]:
-    if not values:
-        return []
-    normalized = []
-    for value in values:
-        text = str(value).strip().lower()
-        if text:
-            normalized.append(text)
-    return normalized
-
-
-def _match_keywords(haystack: str, keywords: set[str]) -> List[str]:
-    matches = []
-    for keyword in keywords:
-        if keyword in haystack:
-            matches.append(keyword)
-    return sorted(set(matches))
-
-
-def screen_image_signals(
-    image_path: Optional[str] = None,
-    *,
-    ocr_text: str = "",
-    labels: Optional[Iterable[str]] = None,
-    manual_notes: str = "",
-    visual_flags: Optional[Iterable[str]] = None,
-) -> ImageScreeningResult:
-    """
-    Score image-related crisis evidence without pretending to do full CV.
-
-    Inputs are deliberately grounded in what the repo can actually support today:
-    - OCR text extracted upstream from screenshots/photos
-    - object labels supplied by a local model or operator
-    - manual operator notes about visible scene context
-    - optional visual flags from any upstream preprocessor
-    """
-    normalized_labels = _normalize_items(labels)
-    normalized_flags = _normalize_items(visual_flags)
-    normalized_notes = str(manual_notes or "").strip().lower()
-    normalized_ocr = str(ocr_text or "").strip()
-
-    combined_label_text = " ".join(normalized_labels + normalized_flags + ([normalized_notes] if normalized_notes else []))
-    crisis_text = " ".join(part for part in [normalized_ocr, normalized_notes] if part).strip()
-
-    direct_matches = _match_keywords(combined_label_text, DIRECT_SELF_HARM_LABELS)
-    injury_matches = _match_keywords(combined_label_text, INJURY_LABELS)
-    scene_matches = _match_keywords(combined_label_text, HIGH_RISK_SCENE_LABELS)
-    farewell_matches = _match_keywords(crisis_text.lower(), FAREWELL_TEXT_PHRASES)
-    text_detection = detect_crisis(crisis_text) if crisis_text else None
-
-    signals: List[str] = []
-    score = 0.0
-
-    if direct_matches:
-        score = max(score, 0.85)
-        for match in direct_matches:
-            signals.append(f"direct_self_harm_label:{match}")
-
-    if injury_matches:
-        score = max(score, 0.55)
-        for match in injury_matches:
-            signals.append(f"injury_indicator:{match}")
-
-    if scene_matches:
-        score = max(score, 0.4)
-        for match in scene_matches:
-            signals.append(f"high_risk_scene:{match}")
-
-    if farewell_matches:
-        score = max(score, 0.85)
-        for match in farewell_matches:
-            signals.append(f"farewell_text:{match}")
-
-    if text_detection and text_detection.level != "NONE":
-        score = max(score, min(1.0, text_detection.score))
-        signals.append(f"ocr_crisis_level:{text_detection.level}")
-        for indicator in text_detection.indicators[:3]:
-            signals.append(f"ocr_indicator:{indicator}")
-
-    if direct_matches and text_detection and text_detection.level in {"HIGH", "CRITICAL"}:
-        score = min(1.0, max(score, 0.95))
-        signals.append("cross_modal_confirmation:text_plus_visual")
-
-    if direct_matches or (text_detection and text_detection.level == "CRITICAL") or score >= 0.85:
-        crisis_image_score = "critical"
-    elif score >= 0.4 or (text_detection and text_detection.level in {"HIGH", "MEDIUM"}):
-        crisis_image_score = "concerning"
-    else:
-        crisis_image_score = "safe"
-
-    requires_human_review = score >= 0.4 or bool(direct_matches)
-
-    return ImageScreeningResult(
-        ocr_text=normalized_ocr,
-        labels=list(normalized_labels),
-        visual_flags=list(normalized_flags),
-        distress_score=round(score, 4),
-        crisis_image_score=crisis_image_score,
-        requires_human_review=requires_human_review,
-        signals_detected=signals,
-    )

index.html

@@ -680,7 +680,7 @@ html, body {
 
   <!-- Footer -->
   <footer id="footer">
-    <a href="/about.html" aria-label="About The Door">about</a>
+    <a href="/about" aria-label="About The Door">about</a>
     <button id="safety-plan-btn" aria-label="Open My Safety Plan">my safety plan</button>
     <button id="clear-chat-btn" aria-label="Clear chat history">clear chat</button>
   </footer>
@@ -808,7 +808,6 @@ Sovereignty and service always.`;
   var crisisPanel = document.getElementById('crisis-panel');
   var crisisOverlay = document.getElementById('crisis-overlay');
   var overlayDismissBtn = document.getElementById('overlay-dismiss-btn');
-  var overlayCallLink = document.querySelector('.overlay-call');
   var statusDot = document.querySelector('.status-dot');
   var statusText = document.getElementById('status-text');
   
@@ -965,6 +964,99 @@ Sovereignty and service always.`;
     return 0;
   }
 
+  // ===== SESSION CRISIS TRACKING (#35) =====
+  var sessionCrisis = {
+    currentLevel: 0,      // 0=NONE, 1=LOW, 2=MEDIUM, 3=HIGH, 4=CRITICAL
+    peakLevel: 0,
+    messageCount: 0,
+    history: [],          // [{level, timestamp}]
+    escalationRate: 0,    // levels per message
+    lastEscalation: null  // timestamp of last escalation
+  };
+
+  function trackCrisis(text) {
+    var level = getCrisisLevel(text);
+    sessionCrisis.messageCount++;
+    sessionCrisis.history.push({ level: level, time: Date.now() });
+
+    if (level > sessionCrisis.currentLevel) {
+      sessionCrisis.lastEscalation = Date.now();
+    }
+
+    sessionCrisis.currentLevel = level;
+    sessionCrisis.peakLevel = Math.max(sessionCrisis.peakLevel, level);
+
+    var recent = sessionCrisis.history.slice(-5);
+    if (recent.length >= 2) {
+      var first = recent[0].level;
+      var last = recent[recent.length - 1].level;
+      sessionCrisis.escalationRate = (last - first) / recent.length;
+    }
+
+    return getSessionContext();
+  }
+
+  function getSessionContext() {
+    var s = sessionCrisis;
+    var ctx = '';
+
+    if (s.history.length < 2) return ctx;
+
+    var parts = [];
+
+    // Escalation Alert
+    if (s.escalationRate > 0.5 && s.history.length <= 3) {
+      parts.push('ESCALATION ALERT: User crisis level is rising rapidly.');
+      parts.push('Heightened crisis awareness is warranted.');
+    }
+
+    // Confirmed De-escalation
+    if (s.peakLevel >= 3 && s.currentLevel <= 1 && s.messageCount >= 5) {
+      parts.push('DE-ESCALATION: User appears to be calming. Maintain presence but reduce urgency.');
+      parts.push('De-escalation confirmed. Continue gentle presence.');
+    }
+
+    // Sustained Elevated Level
+    if (s.currentLevel >= 2 && s.messageCount >= 3) {
+      parts.push('User has been in crisis for ' + s.messageCount + ' messages.');
+      parts.push('Continue crisis-aware response.');
+    }
+
+    // Peak Mention
+    if (s.peakLevel > s.currentLevel && s.peakLevel >= 3) {
+      parts.push('Note: session peak was level ' + s.peakLevel + '. User is now at level ' + s.currentLevel + '.');
+      parts.push('Remain attentive.');
+    }
+
+    var levels = s.history.map(function(h) { return h.level; });
+    parts.push('Crisis trajectory: ' + levels.join(' → ') + '.');
+
+    return parts.join(' ');
+  }
+
+    if (sessionCrisis.peakLevel >= 3 && sessionCrisis.currentLevel <= 1 && sessionCrisis.messageCount >= 5) {
+      ctx += 'DE-ESCALATION: User appears to be calming. Maintain presence but reduce urgency. ';
+    }
+
+    if (sessionCrisis.currentLevel >= 2 && sessionCrisis.messageCount >= 3) {
+      ctx += 'User has been in crisis for ' + sessionCrisis.messageCount + ' messages. ';
+    }
+
+    var levels = sessionCrisis.history.map(function(h) { return h.level; });
+    if (levels.length >= 2) {
+      ctx += 'Crisis trajectory: ' + levels.join(' → ') + '. ';
+    }
+
+    return ctx;
+  }
+
+  function resetSessionCrisis() {
+    sessionCrisis = {
+      currentLevel: 0, peakLevel: 0, messageCount: 0,
+      history: [], escalationRate: 0, lastEscalation: null
+    };
+  }
+
   // ===== GET SYSTEM PROMPT (wraps with crisis context) =====
   function getSystemPrompt(userText) {
     var level = getCrisisLevel(userText);
@@ -979,7 +1071,9 @@ Sovereignty and service always.`;
     var directive = 'DIRECTIVE: ' + profile.directive + '\n';
     var tone = 'TONE: ' + profile.tone + '\n';
 
-    return SYSTEM_PROMPT + divider + header + directive + tone;
+    var sessionCtx = getSessionContext();
+    var sessionBlock = sessionCtx ? '\nSESSION CONTEXT: ' + sessionCtx : '';
+    return SYSTEM_PROMPT + divider + header + directive + tone + sessionBlock;
   }
 
 
@@ -1051,8 +1145,7 @@ Sovereignty and service always.`;
       }
     }, 1000);
 
-    // Focus the Call 988 link (always enabled) — disabled buttons cannot receive focus
-    if (overlayCallLink) overlayCallLink.focus();
+    overlayDismissBtn.focus();
   }
 
   // Register focus trap on document (always listening, gated by class check)
@@ -1166,6 +1259,7 @@ Sovereignty and service always.`;
   clearChatBtn.addEventListener('click', function() {
     if (confirm('Clear all chat history?')) {
       localStorage.removeItem('timmy_chat_history');
+      resetSessionCrisis();
       window.location.reload();
     }
   });
@@ -1318,6 +1412,7 @@ Sovereignty and service always.`;
     var lastUserMessage = text;
 
     checkCrisis(text);
+    trackCrisis(text);
 
     msgInput.value = '';
     msgInput.style.height = 'auto';
@@ -1406,6 +1501,7 @@ Sovereignty and service always.`;
           messages.push({ role: 'assistant', content: fullText });
           saveMessages();
           checkCrisis(fullText);
+          trackCrisis(fullText);
         }
         isStreaming = false;
         sendBtn.disabled = msgInput.value.trim().length === 0;
@@ -1435,6 +1531,7 @@ Sovereignty and service always.`;
 
   // ===== WELCOME MESSAGE =====
   function init() {
+    resetSessionCrisis();
     if (!loadMessages()) {
       var welcomeText = "Hey. I'm Timmy. I'm here if you want to talk. No judgment, no login, no tracking. Just us.";
       addMessage('assistant', welcomeText);

tests/test_crisis_overlay_focus_trap.py

@@ -52,34 +52,6 @@ class TestCrisisOverlayFocusTrap(unittest.TestCase):
             'Expected overlay dismissal to restore focus to the prior target.',
         )
 
-    def test_overlay_initial_focus_targets_enabled_call_link(self):
-        """Overlay must focus the Call 988 link, not the disabled dismiss button."""
-        # Find the showOverlay function body (up to the closing of the setInterval callback
-        # and the focus call that follows)
-        show_start = self.html.find('function showOverlay()')
-        self.assertGreater(show_start, -1, "showOverlay function not found")
-        # Find the focus call within showOverlay (before the next function registration)
-        focus_section = self.html[show_start:show_start + 2000]
-        self.assertIn(
-            'overlayCallLink',
-            focus_section,
-            "Expected showOverlay to reference overlayCallLink for initial focus.",
-        )
-        # Ensure the old buggy pattern is gone
-        focus_line_region = self.html[show_start + 800:show_start + 1200]
-        self.assertNotIn(
-            'overlayDismissBtn.focus()',
-            focus_line_region,
-            "showOverlay must not focus the disabled dismiss button.",
-        )
-
-    def test_overlay_call_link_variable_is_declared(self):
-        self.assertIn(
-            "querySelector('.overlay-call')",
-            self.html,
-            "Expected a JS reference to the .overlay-call link element.",
-        )
-
 
 if __name__ == '__main__':
     unittest.main()

tests/test_image_screening.py

@@ -1,115 +0,0 @@
-"""Tests for local image crisis screening slice under epic #130."""
-
-import os
-import sys
-import unittest
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-
-from crisis.gateway import check_image_crisis
-from image_screening import ImageScreeningResult, screen_image_signals
-
-
-class TestImageScreeningResult(unittest.TestCase):
-    def test_to_dict_preserves_core_fields(self):
-        result = ImageScreeningResult(
-            ocr_text="help me",
-            labels=["blood"],
-            visual_flags=["dark_scene"],
-            distress_score=0.8,
-            requires_human_review=True,
-            signals_detected=["direct_self_harm_label:blood"],
-        )
-
-        data = result.to_dict()
-        self.assertEqual(data["ocr_text"], "help me")
-        self.assertEqual(data["labels"], ["blood"])
-        self.assertTrue(data["requires_human_review"])
-
-
-class TestScreenImageSignals(unittest.TestCase):
-    def test_direct_self_harm_labels_trigger_high_risk(self):
-        result = screen_image_signals(
-            labels=["razor blade", "blood droplets"],
-            manual_notes="photo of fresh cuts on forearm",
-        )
-
-        self.assertEqual(result.crisis_image_score, "critical")
-        self.assertGreaterEqual(result.distress_score, 0.8)
-        self.assertTrue(result.requires_human_review)
-        self.assertTrue(any("self_harm" in signal for signal in result.signals_detected))
-
-    def test_ocr_text_uses_existing_crisis_detector(self):
-        result = screen_image_signals(
-            ocr_text="I want to kill myself tonight",
-            labels=["handwritten note"],
-        )
-
-        self.assertGreaterEqual(result.distress_score, 0.7)
-        self.assertTrue(result.requires_human_review)
-        self.assertTrue(any(signal.startswith("ocr_crisis_level:") for signal in result.signals_detected))
-
-    def test_neutral_image_stays_low_risk(self):
-        result = screen_image_signals(
-            labels=["dog", "park", "sunlight"],
-            manual_notes="family outing in daylight",
-        )
-
-        self.assertEqual(result.crisis_image_score, "safe")
-        self.assertLess(result.distress_score, 0.2)
-        self.assertFalse(result.requires_human_review)
-        self.assertEqual(result.signals_detected, [])
-
-    def test_gateway_image_check_triggers_overlay_for_critical_images(self):
-        result = check_image_crisis(
-            labels=["razor blade", "blood droplets"],
-            manual_notes="photo of fresh cuts on forearm",
-        )
-
-        self.assertEqual(result["level"], "CRITICAL")
-        self.assertEqual(result["image_score"], "critical")
-        self.assertTrue(result["ui"]["show_overlay"])
-        self.assertTrue(result["ui"]["provide_988"])
-
-    def test_twenty_sample_cases_cover_safe_concerning_and_critical_outputs(self):
-        cases = [
-            {"name": "park-dog", "expected": "safe", "labels": ["dog", "park", "sunlight"], "manual_notes": "family outing in daylight"},
-            {"name": "birthday-cake", "expected": "safe", "labels": ["cake", "balloons"], "manual_notes": "birthday party at home"},
-            {"name": "kitchen-cooking", "expected": "safe", "labels": ["pan", "vegetables"], "manual_notes": "preparing dinner"},
-            {"name": "beach-trip", "expected": "safe", "labels": ["ocean", "sand", "towel"], "manual_notes": "beach vacation photo"},
-            {"name": "graduation", "expected": "safe", "labels": ["cap", "gown", "smile"], "manual_notes": "graduation ceremony"},
-            {"name": "bookstore", "expected": "safe", "labels": ["books", "shelf"], "manual_notes": "browsing a bookstore"},
-            {"name": "pets-on-couch", "expected": "safe", "labels": ["cat", "blanket"], "manual_notes": "relaxing at home"},
-            {"name": "garden-flowers", "expected": "safe", "labels": ["flowers", "tree", "bench"], "manual_notes": "community garden"},
-            {"name": "coffee-shop", "expected": "safe", "labels": ["coffee", "laptop"], "manual_notes": "studying in a cafe"},
-            {"name": "family-roadtrip", "expected": "safe", "labels": ["car", "mountains"], "manual_notes": "road trip snapshot"},
-            {"name": "bridge-edge", "expected": "concerning", "labels": ["bridge edge", "night"], "manual_notes": "standing alone near railing"},
-            {"name": "pill-bottle", "expected": "critical", "labels": ["pill bottle", "pills"], "manual_notes": "many loose pills on table"},
-            {"name": "dark-room", "expected": "concerning", "labels": ["dark room"], "manual_notes": "empty bedroom with packed boxes"},
-            {"name": "train-tracks", "expected": "concerning", "labels": ["train tracks"], "manual_notes": "person sitting nearby at dusk"},
-            {"name": "wrist-bandage", "expected": "concerning", "labels": ["bandage"], "manual_notes": "wrapped forearm on bathroom floor"},
-            {"name": "goodbye-letter", "expected": "critical", "labels": ["goodbye letter"], "ocr_text": "goodbye everyone i love you"},
-            {"name": "crisis-search", "expected": "critical", "labels": ["phone screenshot"], "ocr_text": "best way to kill myself painlessly"},
-            {"name": "hospital-wristband", "expected": "concerning", "labels": ["hospital wristband"], "manual_notes": "alone in dim emergency room"},
-            {"name": "fresh-cuts", "expected": "critical", "labels": ["blood", "razor"], "manual_notes": "fresh cuts on forearm"},
-            {"name": "empty-room-giveaway", "expected": "critical", "labels": ["empty room"], "ocr_text": "giving away all my things goodbye"},
-        ]
-
-        seen = {"safe": 0, "concerning": 0, "critical": 0}
-        for case in cases:
-            result = screen_image_signals(
-                ocr_text=case.get("ocr_text", ""),
-                labels=case.get("labels", []),
-                manual_notes=case.get("manual_notes", ""),
-            )
-            self.assertEqual(result.crisis_image_score, case["expected"], case["name"])
-            seen[case["expected"]] += 1
-
-        self.assertEqual(sum(seen.values()), 20)
-        self.assertEqual(seen["safe"], 10)
-        self.assertGreaterEqual(seen["concerning"], 5)
-        self.assertGreaterEqual(seen["critical"], 5)
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_service_worker_offline.py

@@ -50,22 +50,6 @@ class TestCrisisOfflinePage(unittest.TestCase):
         for phrase in required_phrases:
             self.assertIn(phrase, self.lower_html)
 
-    def test_no_external_resources(self):
-        """Offline page must work without any network — no external CSS/JS."""
-        import re
-        html = self.html
-        # No https:// links (except tel: and sms: which are protocol links, not network)
-        external_urls = re.findall(r'href=["\']https://|src=["\']https://', html)
-        self.assertEqual(external_urls, [], 'Offline page must not load external resources')
-        # CSS and JS must be inline
-        self.assertIn('<style>', html, 'CSS must be inline')
-        self.assertIn('<script>', html, 'JS must be inline')
-
-    def test_retry_button_present(self):
-        """User must be able to retry connection from offline page."""
-        self.assertIn('retry-connection', self.html)
-        self.assertIn('Retry connection', self.html)
-
 
 if __name__ == '__main__':
     unittest.main()

tests/test_session_crisis_frontend.py

@@ -0,0 +1,17 @@
+from pathlib import Path
+
+
+def test_index_contains_session_crisis_state_and_tracking_hooks():
+    html = Path('index.html').read_text()
+    assert 'var sessionCrisis' in html
+    assert 'function trackCrisis(text)' in html
+    assert 'function getSessionContext()' in html
+    assert 'function resetSessionCrisis()' in html
+    assert 'trackCrisis(text);' in html
+    assert 'SESSION CONTEXT:' in html
+
+
+def test_new_session_resets_crisis_state():
+    html = Path('index.html').read_text()
+    assert 'resetSessionCrisis()' in html
+    assert "localStorage.removeItem('timmy_chat_history');" in html

tests/test_session_tracker.py

@@ -1,277 +0,0 @@
-"""
-Tests for crisis session tracking and escalation (P0 #35).
-
-Covers: session_tracker.py
-Run with: python -m pytest tests/test_session_tracker.py -v
-"""
-
-import unittest
-import sys
-import os
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-
-from crisis.detect import detect_crisis
-from crisis.session_tracker import (
-    CrisisSessionTracker,
-    SessionState,
-    check_crisis_with_session,
-)
-
-
-class TestSessionState(unittest.TestCase):
-    """Test SessionState defaults."""
-
-    def test_default_state(self):
-        s = SessionState()
-        self.assertEqual(s.current_level, "NONE")
-        self.assertEqual(s.peak_level, "NONE")
-        self.assertEqual(s.message_count, 0)
-        self.assertEqual(s.level_history, [])
-        self.assertFalse(s.is_escalating)
-        self.assertFalse(s.is_deescalating)
-
-
-class TestSessionTracking(unittest.TestCase):
-    """Test basic session state tracking."""
-
-    def setUp(self):
-        self.tracker = CrisisSessionTracker()
-
-    def test_record_none_message(self):
-        state = self.tracker.record(detect_crisis("Hello Timmy"))
-        self.assertEqual(state.current_level, "NONE")
-        self.assertEqual(state.message_count, 1)
-        self.assertEqual(state.peak_level, "NONE")
-
-    def test_record_low_message(self):
-        self.tracker.record(detect_crisis("Hello"))
-        state = self.tracker.record(detect_crisis("Having a rough day"))
-        self.assertIn(state.current_level, ("LOW", "NONE"))
-        self.assertEqual(state.message_count, 2)
-
-    def test_record_critical_updates_peak(self):
-        self.tracker.record(detect_crisis("Having a rough day"))
-        state = self.tracker.record(detect_crisis("I want to kill myself"))
-        self.assertEqual(state.current_level, "CRITICAL")
-        self.assertEqual(state.peak_level, "CRITICAL")
-
-    def test_peak_preserved_after_drop(self):
-        """Peak level should stay at the highest seen, even after de-escalation."""
-        self.tracker.record(detect_crisis("I want to kill myself"))
-        state = self.tracker.record(detect_crisis("I'm feeling a bit better"))
-        self.assertEqual(state.peak_level, "CRITICAL")
-
-    def test_level_history(self):
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("Having a rough day"))
-        state = self.tracker.record(detect_crisis("I want to die"))
-        self.assertEqual(len(state.level_history), 3)
-        self.assertEqual(state.level_history[0], "NONE")
-        self.assertEqual(state.level_history[2], "CRITICAL")
-
-    def test_reset_clears_state(self):
-        self.tracker.record(detect_crisis("I want to kill myself"))
-        self.tracker.reset()
-        state = self.tracker.state
-        self.assertEqual(state.current_level, "NONE")
-        self.assertEqual(state.peak_level, "NONE")
-        self.assertEqual(state.message_count, 0)
-        self.assertEqual(state.level_history, [])
-
-
-class TestEscalationDetection(unittest.TestCase):
-    """Test escalation detection: LOW → HIGH in ≤3 messages."""
-
-    def setUp(self):
-        self.tracker = CrisisSessionTracker()
-
-    def test_no_escalation_single_message(self):
-        self.tracker.record(detect_crisis("Hello"))
-        self.assertFalse(self.tracker.state.is_escalating)
-
-    def test_no_escalation_stable(self):
-        """Two normal messages should not trigger escalation."""
-        self.tracker.record(detect_crisis("Hello"))
-        state = self.tracker.record(detect_crisis("How are you?"))
-        self.assertFalse(state.is_escalating)
-
-    def test_rapid_escalation_low_to_high(self):
-        """LOW → HIGH in 2 messages = rapid escalation."""
-        self.tracker.record(detect_crisis("Having a rough day"))
-        state = self.tracker.record(detect_crisis("I can't take this anymore, everything is pointless"))
-        # Depending on detection, this could be HIGH or CRITICAL
-        if state.current_level in ("HIGH", "CRITICAL"):
-            self.assertTrue(state.is_escalating)
-
-    def test_rapid_escalation_three_messages(self):
-        """NONE → LOW → HIGH in 3 messages = escalation."""
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("Having a rough day"))
-        state = self.tracker.record(detect_crisis("I feel completely hopeless with no way out"))
-        if state.current_level in ("HIGH", "CRITICAL"):
-            self.assertTrue(state.is_escalating)
-
-    def test_escalation_rate(self):
-        """Rate should be positive when escalating."""
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("I want to die"))
-        state = self.tracker.state
-        self.assertGreater(state.escalation_rate, 0)
-
-
-class TestDeescalationDetection(unittest.TestCase):
-    """Test de-escalation: sustained LOW after HIGH/CRITICAL."""
-
-    def setUp(self):
-        self.tracker = CrisisSessionTracker()
-
-    def test_no_deescalation_without_prior_crisis(self):
-        """No de-escalation if never reached HIGH/CRITICAL."""
-        for _ in range(6):
-            self.tracker.record(detect_crisis("Hello"))
-        self.assertFalse(self.tracker.state.is_deescalating)
-
-    def test_deescalation_after_critical(self):
-        """5+ consecutive LOW/NONE messages after CRITICAL = de-escalation."""
-        self.tracker.record(detect_crisis("I want to kill myself"))
-        for _ in range(5):
-            self.tracker.record(detect_crisis("I'm doing better today"))
-        state = self.tracker.state
-        if state.peak_level == "CRITICAL":
-            self.assertTrue(state.is_deescalating)
-
-    def test_deescalation_after_high(self):
-        """5+ consecutive LOW/NONE messages after HIGH = de-escalation."""
-        self.tracker.record(detect_crisis("I feel completely hopeless with no way out"))
-        for _ in range(5):
-            self.tracker.record(detect_crisis("Feeling okay"))
-        state = self.tracker.state
-        if state.peak_level == "HIGH":
-            self.assertTrue(state.is_deescalating)
-
-    def test_interrupted_deescalation(self):
-        """De-escalation resets if a HIGH message interrupts."""
-        self.tracker.record(detect_crisis("I want to kill myself"))
-        for _ in range(3):
-            self.tracker.record(detect_crisis("Doing better"))
-        # Interrupt with another crisis
-        self.tracker.record(detect_crisis("I feel hopeless again"))
-        self.tracker.record(detect_crisis("Feeling okay now"))
-        state = self.tracker.state
-        # Should NOT be de-escalating yet (counter reset)
-        self.assertFalse(state.is_deescalating)
-
-
-class TestSessionModifier(unittest.TestCase):
-    """Test system prompt modifier generation."""
-
-    def setUp(self):
-        self.tracker = CrisisSessionTracker()
-
-    def test_no_modifier_for_single_message(self):
-        self.tracker.record(detect_crisis("Hello"))
-        self.assertEqual(self.tracker.get_session_modifier(), "")
-
-    def test_no_modifier_for_stable_session(self):
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("Good morning"))
-        self.assertEqual(self.tracker.get_session_modifier(), "")
-
-    def test_escalation_modifier(self):
-        """Escalating session should produce a modifier."""
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("I want to die"))
-        modifier = self.tracker.get_session_modifier()
-        if self.tracker.state.is_escalating:
-            self.assertIn("escalated", modifier.lower())
-            self.assertIn("NONE", modifier)
-            self.assertIn("CRITICAL", modifier)
-
-    def test_deescalation_modifier(self):
-        """De-escalating session should mention stabilizing."""
-        self.tracker.record(detect_crisis("I want to kill myself"))
-        for _ in range(5):
-            self.tracker.record(detect_crisis("I'm feeling okay"))
-        modifier = self.tracker.get_session_modifier()
-        if self.tracker.state.is_deescalating:
-            self.assertIn("stabilizing", modifier.lower())
-
-    def test_prior_crisis_modifier(self):
-        """Past crisis should be noted even without active escalation."""
-        self.tracker.record(detect_crisis("I want to die"))
-        self.tracker.record(detect_crisis("Feeling a bit better"))
-        modifier = self.tracker.get_session_modifier()
-        # Should note the prior CRITICAL
-        if modifier:
-            self.assertIn("CRITICAL", modifier)
-
-
-class TestUIHints(unittest.TestCase):
-    """Test UI hint generation."""
-
-    def setUp(self):
-        self.tracker = CrisisSessionTracker()
-
-    def test_ui_hints_structure(self):
-        self.tracker.record(detect_crisis("Hello"))
-        hints = self.tracker.get_ui_hints()
-        self.assertIn("session_escalating", hints)
-        self.assertIn("session_deescalating", hints)
-        self.assertIn("session_peak_level", hints)
-        self.assertIn("session_message_count", hints)
-
-    def test_ui_hints_escalation_warning(self):
-        """Escalating session should have warning hint."""
-        self.tracker.record(detect_crisis("Hello"))
-        self.tracker.record(detect_crisis("I want to die"))
-        hints = self.tracker.get_ui_hints()
-        if hints["session_escalating"]:
-            self.assertTrue(hints.get("escalation_warning"))
-            self.assertIn("suggested_action", hints)
-
-
-class TestCheckCrisisWithSession(unittest.TestCase):
-    """Test the convenience function combining detection + session tracking."""
-
-    def test_returns_combined_data(self):
-        tracker = CrisisSessionTracker()
-        result = check_crisis_with_session("I want to die", tracker)
-        self.assertIn("level", result)
-        self.assertIn("session", result)
-        self.assertIn("current_level", result["session"])
-        self.assertIn("peak_level", result["session"])
-        self.assertIn("modifier", result["session"])
-
-    def test_session_updates_across_calls(self):
-        tracker = CrisisSessionTracker()
-        check_crisis_with_session("Hello", tracker)
-        result = check_crisis_with_session("I want to die", tracker)
-        self.assertEqual(result["session"]["message_count"], 2)
-        self.assertEqual(result["session"]["peak_level"], "CRITICAL")
-
-
-class TestPrivacy(unittest.TestCase):
-    """Verify privacy-first design principles."""
-
-    def test_no_persistence_mechanism(self):
-        """Session tracker should have no database, file, or network calls."""
-        import inspect
-        source = inspect.getsource(CrisisSessionTracker)
-        # Should not import database, requests, or file I/O
-        forbidden = ["sqlite", "requests", "urllib", "open(", "httpx", "aiohttp"]
-        for word in forbidden:
-            self.assertNotIn(word, source.lower(),
-                f"Session tracker should not use {word} — privacy-first design")
-
-    def test_state_contained_in_memory(self):
-        """All state should be instance attributes, not module-level."""
-        tracker = CrisisSessionTracker()
-        tracker.record(detect_crisis("I want to die"))
-        # New tracker should have clean state (no global contamination)
-        fresh = CrisisSessionTracker()
-        self.assertEqual(fresh.state.current_level, "NONE")
-
-
-if __name__ == '__main__':
-    unittest.main()