feat: integrate the-door crisis detection with hermes-agent sessions (closes #99)

Merge PR #74 (squash)

crisis/__init__.py

@@ -7,6 +7,13 @@ 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,
+    CrisisSession,
+    CrisisLevel,
+    EscalationEvent,
+    get_tracker,
+)
 
 __all__ = [
     "detect_crisis",
@@ -19,4 +26,9 @@ __all__ = [
     "format_result",
     "format_gateway_response",
     "get_urgency_emoji",
+    "CrisisSessionTracker",
+    "CrisisSession",
+    "CrisisLevel",
+    "EscalationEvent",
+    "get_tracker",
 ]

crisis/detect.py

@@ -51,13 +51,13 @@ HIGH_INDICATORS = [
     r"\bwish\s+I\s+(?:was|were)\s+(?:dead|gone|never\s+born)\b",
     r"\bdon'?t\s+matter\s+if\s+I\s+exist\b",
     r"\bno\s+one\s+would\s+(?:care|miss)\b",
-    r"\bworld\s+would?\s+be\s+better\s+without\b",
-    r"\bin\s+so\s+much\s+(?:pain|agony|suffering|torment)\b",
-    r"\bcan'?t\s+see\s+any\s+(?:point|reason)\b",
+    r"\bworld\s+would?\s+be\s+better\s+without\s+me\b",
+    r"\bin\s+so\s+much\s+(?:pain|agony|suffering|torment|anguish)\b",
+    r"\bcan'?t\s+see\s+any\s+(?:point|reason|hope|way)\b",
     r"\bescape\s+from\s*this",
     r"\bjust\s+want\s+it\s+to\s+stop\b",
-    r"\btrapped\s+(?:in\s+(?:my|this|a\s+dark)|and\s+can'?t\s+escape)\b",
     r"\bnothing\s+left\s+(?:to\s+(?:live\s+for|hope\s+for|give)|inside)\b",
+    r"\bdisappeared\s+forever\b",
     # Contextual despair phrases (from crisis_detector.py legacy)
     r"\bfeel(?:s|ing)?\s+(?:so\s+)?hopeless\b",
     r"\beverything\s+is\s+hopeless\b",
@@ -68,6 +68,8 @@ HIGH_INDICATORS = [
     r"\bno\s*hope\s+(?:left|remaining)\b",
     r"\bno\s*way\s*out\b",
     r"\bfeel(?:s|ing)?\s+trapped\b",
+    r"\btrapped\s+in\s+this\s+(?:situation|life|pain|darkness|hell)\b",
+    r"\btrapped\s+and\s+can'?t\s+escape\b",
     r"\bdesperate\s+(?:for\s+)?help\b",
     r"\bfeel(?:s|ing)?\s+desperate\b",
 ]
@@ -99,6 +101,8 @@ MEDIUM_INDICATORS = [
     r"\bsinking\b",
     r"\bdrowning\b",
     r"\bhopeless\b",
+    r"\blost\s+all\s+hope\b",
+    r"\bno\s+tomorrow\b",
     # Contextual versions (from crisis_detector.py legacy)
     r"\bfeel(?:s|ing)?\s+(?:so\s+)?worthless\b",
     r"\bfeel(?:s|ing)?\s+(?:so\s+)?hopeless\b",
@@ -112,7 +116,7 @@ MEDIUM_INDICATORS = [
 LOW_INDICATORS = [
     r"\bunhappy\b",
     r"\bdown\b",
-    r"\btough\s*time\b",
+    r"\btough\s*(?:time|day|week)\b",
     r"\brough\s+(?:day|week|patch)\b",
     r"\bstressed\b",
     r"\bburnout\b",
@@ -122,6 +126,8 @@ LOW_INDICATORS = [
     r"\btired\b",
     r"\bsad\b",
     r"\bupset\b",
+    r"\blonely\b",
+    r"\banxious?\b",
     r"\bnot\s*(?:good|great|okay)\b",
     r"\bthings\s*are\s*hard\b",
     r"\bstruggling\b",

crisis/session_tracker.py

@@ -0,0 +1,251 @@
+"""
+Crisis Session Tracker for the-door <-> hermes-agent integration.
+
+Tracks crisis session state, escalation history, and provides
+a bridge between the-door's web UI and hermes-agent sessions.
+
+Each browser session gets a unique crisis_session_id that is sent
+with every API request. This allows hermes-agent to:
+1. Receive crisis context from the-door's client-side detection
+2. Report escalations/de-escalations back to the-door's UI
+3. Maintain unified escalation history across web and CLI
+
+Usage:
+    from crisis.session_tracker import CrisisSessionTracker
+
+    tracker = CrisisSessionTracker()
+    tracker.record("session-abc", level="HIGH", source="the-door", detail="keyword: 'can't go on'")
+    history = tracker.get_history("session-abc")
+"""
+import json
+import os
+import time
+import uuid
+from dataclasses import dataclass, field, asdict
+from enum import Enum
+from pathlib import Path
+from typing import Dict, List, Optional
+
+
+class CrisisLevel(Enum):
+    """Crisis severity levels — aligned with both the-door and hermes-agent."""
+    NONE = "NONE"
+    LOW = "LOW"
+    MEDIUM = "MEDIUM"
+    HIGH = "HIGH"
+    CRITICAL = "CRITICAL"
+
+    @classmethod
+    def from_string(cls, s: str) -> "CrisisLevel":
+        try:
+            return cls[s.upper()]
+        except KeyError:
+            return cls.NONE
+
+    def __ge__(self, other: "CrisisLevel") -> bool:
+        order = [self.NONE, self.LOW, self.MEDIUM, self.HIGH, self.CRITICAL]
+        return order.index(self) >= order.index(other)
+
+    def __gt__(self, other: "CrisisLevel") -> bool:
+        order = [self.NONE, self.LOW, self.MEDIUM, self.HIGH, self.CRITICAL]
+        return order.index(self) > order.index(other)
+
+
+@dataclass
+class EscalationEvent:
+    """A single crisis escalation or de-escalation event."""
+    timestamp: float
+    level: str
+    previous_level: str
+    source: str          # "the-door" or "hermes-agent"
+    detail: str = ""
+    session_id: str = ""
+
+    def to_dict(self) -> dict:
+        return asdict(self)
+
+
+@dataclass
+class CrisisSession:
+    """State for a single crisis session."""
+    session_id: str
+    created_at: float = field(default_factory=time.time)
+    current_level: str = "NONE"
+    events: List[EscalationEvent] = field(default_factory=list)
+    # Per-source levels (what each source last reported)
+    door_level: str = "NONE"
+    hermes_level: str = "NONE"
+    hermes_last_update: float = 0.0
+    # Whether the UI has acknowledged the current level
+    ui_acknowledged: bool = False
+
+    def record(self, level: str, source: str, detail: str = "") -> EscalationEvent:
+        """Record an escalation or de-escalation event."""
+        event = EscalationEvent(
+            timestamp=time.time(),
+            level=level,
+            previous_level=self.current_level,
+            source=source,
+            detail=detail,
+            session_id=self.session_id,
+        )
+        self.events.append(event)
+
+        # Update the per-source level
+        if source == "hermes-agent":
+            self.hermes_level = level
+            self.hermes_last_update = time.time()
+        else:
+            self.door_level = level
+
+        # Merged level = max of both sources (safety-first: higher wins)
+        merged = max(
+            CrisisLevel.from_string(self.door_level),
+            CrisisLevel.from_string(self.hermes_level),
+        )
+        self.current_level = merged.value
+        self.ui_acknowledged = False
+
+        return event
+
+    def to_dict(self) -> dict:
+        return {
+            "session_id": self.session_id,
+            "created_at": self.created_at,
+            "current_level": self.current_level,
+            "door_level": self.door_level,
+            "hermes_level": self.hermes_level,
+            "hermes_last_update": self.hermes_last_update,
+            "ui_acknowledged": self.ui_acknowledged,
+            "event_count": len(self.events),
+            "events": [e.to_dict() for e in self.events[-20:]],  # Last 20 events
+        }
+
+
+class CrisisSessionTracker:
+    """
+    Tracks crisis sessions across the-door web UI and hermes-agent.
+
+    In-memory by default. Optionally persists to JSON for crash recovery.
+    """
+
+    def __init__(self, persist_path: Optional[str] = None):
+        self._sessions: Dict[str, CrisisSession] = {}
+        self._persist_path = persist_path
+        if persist_path and os.path.exists(persist_path):
+            self._load()
+
+    def get_or_create(self, session_id: str) -> CrisisSession:
+        """Get existing session or create a new one."""
+        if session_id not in self._sessions:
+            self._sessions[session_id] = CrisisSession(session_id=session_id)
+        return self._sessions[session_id]
+
+    def record(
+        self,
+        session_id: str,
+        level: str,
+        source: str,
+        detail: str = "",
+    ) -> dict:
+        """
+        Record a crisis event. Returns the updated session state.
+
+        Args:
+            session_id: Browser/hermes session identifier
+            level: NONE, LOW, MEDIUM, HIGH, CRITICAL
+            source: "the-door" or "hermes-agent"
+            detail: Human-readable description of what triggered this
+        """
+        session = self.get_or_create(session_id)
+        event = session.record(level, source, detail)
+
+        if self._persist_path:
+            self._save()
+
+        return {
+            "session": session.to_dict(),
+            "event": event.to_dict(),
+            "escalated": CrisisLevel.from_string(level) > CrisisLevel.from_string(event.previous_level),
+            "de_escalated": CrisisLevel.from_string(level) < CrisisLevel.from_string(event.previous_level),
+        }
+
+    def get_history(self, session_id: str) -> Optional[dict]:
+        """Get full escalation history for a session."""
+        session = self._sessions.get(session_id)
+        if not session:
+            return None
+        return session.to_dict()
+
+    def get_unacknowledged(self, session_id: str) -> Optional[dict]:
+        """Get current unacknowledged crisis state for UI display."""
+        session = self._sessions.get(session_id)
+        if not session or session.ui_acknowledged:
+            return None
+        return {
+            "session_id": session_id,
+            "current_level": session.current_level,
+            "hermes_level": session.hermes_level,
+            "event_count": len(session.events),
+            "latest_event": session.events[-1].to_dict() if session.events else None,
+        }
+
+    def acknowledge(self, session_id: str) -> bool:
+        """Mark the current crisis state as acknowledged by the UI."""
+        session = self._sessions.get(session_id)
+        if not session:
+            return False
+        session.ui_acknowledged = True
+        return True
+
+    def cleanup(self, max_age_seconds: float = 86400) -> int:
+        """Remove sessions older than max_age_seconds. Returns count removed."""
+        cutoff = time.time() - max_age_seconds
+        stale = [sid for sid, s in self._sessions.items() if s.created_at < cutoff]
+        for sid in stale:
+            del self._sessions[sid]
+        if stale and self._persist_path:
+            self._save()
+        return len(stale)
+
+    def _save(self):
+        """Persist sessions to JSON."""
+        if not self._persist_path:
+            return
+        data = {sid: s.to_dict() for sid, s in self._sessions.items()}
+        os.makedirs(os.path.dirname(self._persist_path) or ".", exist_ok=True)
+        with open(self._persist_path, "w") as f:
+            json.dump(data, f, indent=2)
+
+    def _load(self):
+        """Load sessions from JSON (best-effort)."""
+        try:
+            with open(self._persist_path) as f:
+                data = json.load(f)
+            for sid, sdata in data.items():
+                session = CrisisSession(
+                    session_id=sdata["session_id"],
+                    created_at=sdata.get("created_at", time.time()),
+                    current_level=sdata.get("current_level", "NONE"),
+                    door_level=sdata.get("door_level", "NONE"),
+                    hermes_level=sdata.get("hermes_level", "NONE"),
+                    hermes_last_update=sdata.get("hermes_last_update", 0),
+                    ui_acknowledged=sdata.get("ui_acknowledged", False),
+                )
+                for edata in sdata.get("events", []):
+                    session.events.append(EscalationEvent(**edata))
+                self._sessions[sid] = session
+        except (FileNotFoundError, json.JSONDecodeError, KeyError):
+            pass
+
+
+# Module-level singleton for convenience
+_tracker: Optional[CrisisSessionTracker] = None
+
+
+def get_tracker(persist_path: Optional[str] = None) -> CrisisSessionTracker:
+    """Get or create the module-level tracker singleton."""
+    global _tracker
+    if _tracker is None:
+        _tracker = CrisisSessionTracker(persist_path=persist_path)
+    return _tracker

dying_detection/__init__.py

@@ -1,31 +1,34 @@
 """
-When a Man Is Dying — Despair/Suicide Detection System
+DEPRECATED — Use crisis.detect instead.
 
-Standalone detection module that parses incoming text for
-despair and suicide indicators, classifies into tiers,
-and returns structured response with recommended actions.
+This module is a thin wrapper around crisis.detect for backward compatibility.
+All unique patterns have been merged into crisis/detect.py (see issue #40).
 
-Tiers:
-  LOW      — General sadness, stress, difficult times
-  MEDIUM   — Hopelessness, isolation, worthlessness
-  HIGH     — Active despair, mentions of death, "can't go on"
-  CRITICAL — Imminent risk, explicit intent, plan, method
-
-Integration:
-  Designed to work with crisis/ module from PR #4.
-  When crisis/ is available, uses it as the detection backend.
-  Falls back to internal detection when crisis/ is not present.
+This module will be removed in a future release.
 """
 
-import re
-import json
-import hashlib
+import warnings
 from dataclasses import dataclass, field, asdict
 from typing import List, Optional, Dict
+import json
+import hashlib
+
+# Re-export the canonical detection
+from crisis.detect import detect_crisis, CrisisDetectionResult
+
+# Issue deprecation warning on import
+warnings.warn(
+    "dying_detection is deprecated. Use 'from crisis.detect import detect_crisis' instead. "
+    "All patterns have been consolidated into crisis/detect.py. "
+    "See issue #40.",
+    DeprecationWarning,
+    stacklevel=2,
+)
 
 
 @dataclass
 class DetectionResult:
+    """Backward-compatible result type matching the old dying_detection API."""
     level: str
     indicators: List[str] = field(default_factory=list)
     recommended_action: str = ""
@@ -34,110 +37,9 @@ class DetectionResult:
     session_hash: str = ""
 
 
-# ── Tiered indicator patterns ───────────────────────────────────
-# Each pattern is a regex matched against lowercased input.
-
-CRITICAL_PATTERNS = [
-    (r"\bkill\s*(my)?self\b", "explicit self-harm intent"),
-    (r"\bsuicid(?:al|ed|e)\b", "suicide reference"),
-    (r"\bend\s*(my)?\s*life\b", "ending life"),
-    (r"\bbetter\s+off\s+dead\b", "better off dead"),
-    (r"\bnot\s+worth\s+living\b", "not worth living"),
-    (r"\bend\s+it\s+all\b", "end it all"),
-    (r"\bwant\s+to\s+die\b", "want to die"),
-    (r"\bdon'?t\s+want\s+to\s+live\b", "don't want to live"),
-    (r"\bcan'?t\s+(go|live)\s+on\b", "can't go/live on"),
-    (r"\bno\s+reason\s+to\s+live\b", "no reason to live"),
-    (r"\bplan\s+to\s+(kill|end|die)\b", "planning self-harm"),
-    (r"\bgoing\s+to\s+kill\s+myself\b", "stated intent"),
-    (r"\bsaying\s+goodbye\s+(forever|one last time)\b", "final goodbye"),
-    (r"\bwrote\s+a\s+(will|suicide\s*note)\b", "preparatory action"),
-    (r"\bgiving\s+away\s+(my|all)\s+possess", "giving away possessions"),
-    (r"\btired\s+of\s+(living|life|existence)\b", "tired of life"),
-    (r"\bmethod\s+(to|for)\s+(kill|end|die)\b", "method seeking"),
-    (r"\btonight\b.*\b(die|kill|end|suicid)", "immediate timeframe + intent"),
-    (r"\b(die|kill|end)\b.*\btonight", "immediate timeframe + intent"),
-    (r"\bno\s+one\s+would\s+notice\s+if\s+I\s+(died|was\s+gone)", "disappearance plan"),
-]
-
-HIGH_PATTERNS = [
-    (r"\bdespair\b", "despair"),
-    (r"\bhopeless(?:ness)?\b", "hopelessness"),
-    (r"\bcan'?t\s+take\s+this\s+anymore\b", "can't take it"),
-    (r"\bdon'?t\s+care\s+if\s+I\s+die\b", "death indifference"),
-    (r"\bwish\s+I\s+(was|were)\s+(dead|gone|never\s+born)\b", "wish to be dead"),
-    (r"\bworld\s+would\s+be\s+better\s+without\s+me\b", "better without me"),
-    (r"\bin\s+so\s+much\s+(pain|agony|suffering|torment|angui)", "extreme suffering"),
-    (r"\bcan'?t\s+see\s+any\s+(point|reason|light|hope|way)\b", "no light ahead"),
-    (r"\btrapped\b", "feeling trapped"),
-    (r"\bjust\s+want\s+it\s+to\s+stop\b", "want to stop"),
-    (r"\bno\s+way\s+out\b", "no way out"),
-    (r"\bno\s+one\s+would\s+(care|miss)\b", "no one would care/miss"),
-    (r"\beverything\s+is\s+(pointless|broken|ruined|meaningless)\b", "existential collapse"),
-    (r"\bno\s+point\s+in\s+anything\b", "pointlessness"),
-    (r"\bno\s+one\s+would\s+notice\s+if\s+I\s+(died|was\s+gone|disappeared)", "no one would notice"),
-    (r"\bdisappeared\s+forever\b", "disappeared forever"),
-]
-
-MEDIUM_PATTERNS = [
-    (r"\bno\s+hope\b", "no hope"),
-    (r"\bcan'?t\s+go\s+on\b", "can't go on"),
-    (r"\bcan'?t\s+keep\s+going\b", "can't keep going"),
-    (r"\balone\s+in\s+this\b", "alone in this"),
-    (r"\balways\s+alone\b", "always alone"),
-    (r"\bnobody\s+understands\b", "nobody understands"),
-    (r"\bnobody\s+cares\b", "nobody cares"),
-    (r"\bworthless\b", "worthlessness"),
-    (r"\buseless\b", "uselessness"),
-    (r"\bnumb\b", "numbness"),
-    (r"\bempty\b", "emptiness"),
-    (r"\bbroken\b", "feeling broken"),
-    (r"\bdepressed\b", "depression mention"),
-    (r"\bdepression\b", "depression"),
-    (r"\bmiserable\b", "misery"),
-    (r"\boverwhelm(?:ed|ing)\b", "overwhelmed"),
-    (r"\bcannot\s+cope\b", "cannot cope"),
-    (r"\b(drowning|sinking)\b", "drowning/sinking"),
-    (r"\bforgotten\b", "feeling forgotten"),
-    (r"\blost\s+all\s+hope\b", "lost all hope"),
-    (r"\bno\s+future\b", "no future"),
-    (r"\bno\s+tomorrow\b", "no tomorrow"),
-]
-
-LOW_PATTERNS = [
-    (r"\bunhappy\b", "unhappy"),
-    (r"\brough\s+(day|week|patch)\b", "rough time"),
-    (r"\btough\s+(time|day|week)\b", "tough time"),
-    (r"\bstressed\b", "stressed"),
-    (r"\bburnout\b", "burnout"),
-    (r"\bfrustrated\b", "frustrated"),
-    (r"\bthings\s+(are\s+)?hard\b", "things are hard"),
-    (r"\bnot\s+feeling\s+(great|myself|good)\b", "not feeling good"),
-    (r"\bstruggl", "struggling"),
-    (r"\bdown\b", "feeling down"),
-    (r"\bsad\b", "sad"),
-    (r"\bupset\b", "upset"),
-    (r"\blonely\b", "lonely"),
-    (r"\banxious?\b", "anxious/anxiety"),
-    (r"\bnot\s+okay\b", "not okay"),
-]
-
-# ── Pattern collections for easy iteration ──────────────────────
-
-TIER_PATTERNS: Dict[str, List[tuple]] = {
-    "CRITICAL": CRITICAL_PATTERNS,
-    "HIGH": HIGH_PATTERNS,
-    "MEDIUM": MEDIUM_PATTERNS,
-    "LOW": LOW_PATTERNS,
-}
-
-
 def detect(text: str) -> DetectionResult:
     """
-    Primary detection function.
-
-    If the crisis/ module is available, delegate to it.
-    Otherwise, use the internal pattern engine.
+    Primary detection function — delegates to crisis.detect.
 
     Args:
         text: User message to analyze
@@ -145,150 +47,25 @@ def detect(text: str) -> DetectionResult:
     Returns:
         DetectionResult with level, indicators, recommended_action, confidence
     """
-    # Try to use the crisis module if available
-    try:
-        from crisis.detect import detect_crisis as _crisis_detect
-        result = _crisis_detect(text)
-        # Map to DetectionResult
-        return DetectionResult(
-            level=result.level,
-            indicators=_describe_indicators(result.level, result.indicators),
-            recommended_action=result.recommended_action,
-            confidence=result.score,
-            session_hash=_hash_session(text),
-        )
-    except ImportError:
-        pass
+    result = detect_crisis(text)
 
-    return _detect_internal(text)
+    # Extract raw patterns from matches
+    raw_patterns = [m["pattern"] for m in result.matches] if result.matches else []
 
-
-def _detect_internal(text: str) -> DetectionResult:
-    """Internal pattern-based detection (fallback)."""
-    if not text or not text.strip():
-        return DetectionResult(level="NONE", session_hash=_hash_session(text))
-
-    text_lower = text.lower()
-    all_matches: Dict[str, List[tuple]] = {
-        tier: [] for tier in TIER_PATTERNS
-    }
-
-    for tier, patterns in TIER_PATTERNS.items():
-        for pattern, description in patterns:
-            if re.search(pattern, text_lower):
-                all_matches[tier].append((pattern, description))
-
-    # CRITICAL patterns are the highest priority
-    if all_matches["CRITICAL"]:
-        return DetectionResult(
-            level="CRITICAL",
-            indicators=[desc for _, desc in all_matches["CRITICAL"]],
-            recommended_action=(
-                "INTERRUPT CONVERSATION IMMEDIATELY. "
-                "Ask 'Are you safe right now?' "
-                "Provide 988 Suicide & Crisis Lifeline (call or text 988). "
-                "Provide Crisis Text Line (text HOME to 741741). "
-                "Stay present. Do not disconnect. "
-                "Redirect to professional help. "
-                "This is the most sacred moment."
-            ),
-            raw_matched_patterns=[pat for pat, _ in all_matches["CRITICAL"]],
-            confidence=1.0,
-            session_hash=_hash_session(text),
-        )
-
-    if all_matches["HIGH"]:
-        return DetectionResult(
-            level="HIGH",
-            indicators=[desc for _, desc in all_matches["HIGH"]],
-            recommended_action=(
-                "Show crisis panel prominently. "
-                "Ask about safety directly. "
-                "Surface 988 number and crisis resources. "
-                "Stay present and engaged. Do not rush to fix. "
-                "Monitor closely for escalation."
-            ),
-            raw_matched_patterns=[pat for pat, _ in all_matches["HIGH"]],
-            confidence=0.75,
-            session_hash=_hash_session(text),
-        )
-
-    if all_matches["MEDIUM"]:
-        return DetectionResult(
-            level="MEDIUM",
-            indicators=[desc for _, desc in all_matches["MEDIUM"]],
-            recommended_action=(
-                "Increase warmth and presence. "
-                "Subtly surface help resources. "
-                "Keep conversation anchored in the present. "
-                "Watch for escalation indicators."
-            ),
-            raw_matched_patterns=[pat for pat, _ in all_matches["MEDIUM"]],
-            confidence=0.5,
-            session_hash=_hash_session(text),
-        )
-
-    if all_matches["LOW"]:
-        return DetectionResult(
-            level="LOW",
-            indicators=[desc for _, desc in all_matches["LOW"]],
-            recommended_action=(
-                "Normal conversation with warm undertone. "
-                "No crisis UI elements needed. "
-                "Remain vigilant. Be present."
-            ),
-            raw_matched_patterns=[pat for pat, _ in all_matches["LOW"]],
-            confidence=0.25,
-            session_hash=_hash_session(text),
-        )
-
-    return DetectionResult(level="NONE", session_hash=_hash_session(text))
-
-
-def _describe_indicators(level: str, patterns: list) -> list:
-    """Map raw patterns to descriptions."""
-    descriptions = {
-        "CRITICAL": [],
-        "HIGH": [],
-        "MEDIUM": [],
-        "LOW": [],
-    }
-    for tier, items in TIER_PATTERNS.items():
-        for pat, desc in items:
-            if pat in patterns:
-                descriptions[tier].append(desc)
-    return descriptions.get(level, [])
-
-
-def _hash_session(text: str) -> str:
-    """Create a session hash for this text (for tracking repeated escalations)."""
-    return hashlib.sha256(text.encode()).hexdigest()[:12]
+    return DetectionResult(
+        level=result.level,
+        indicators=result.indicators,
+        recommended_action=result.recommended_action,
+        raw_matched_patterns=raw_patterns,
+        confidence=result.score,
+        session_hash=hashlib.sha256(text.encode()).hexdigest()[:12],
+    )
 
 
 def get_action_for_level(level: str) -> str:
     """Get the recommended action string for a given level."""
-    actions = {
-        "CRITICAL": (
-            "INTERRUPT CONVERSATION. Ask 'Are you safe right now?' "
-            "Provide 988. Provide Crisis Text Line. "
-            "Stay present. Do not disconnect. "
-            "Redirect to help."
-        ),
-        "HIGH": (
-            "Show crisis panel. Ask about safety. "
-            "Surface 988. Stay engaged."
-        ),
-        "MEDIUM": (
-            "Increase warmth. Surface resources gently. "
-            "Anchor in present."
-        ),
-        "LOW": (
-            "Normal conversation with warmth. "
-            "Remain vigilant."
-        ),
-        "NONE": "No action needed.",
-    }
-    return actions.get(level, "Unknown level.")
+    from crisis.detect import ACTIONS
+    return ACTIONS.get(level, "Unknown level.")
 
 
 def as_json(result: DetectionResult, indent: int = 2) -> str:

index.html

@@ -678,6 +678,9 @@ html, body {
     </div>
   </div>
 
+  <!-- Escalation history (crisis session tracking, issue #99) -->
+  <div id="escalation-history" style="display:none; padding:4px 16px; font-size:0.75rem; color:#8b949e; border-top:1px solid #21262d;"></div>
+
   <!-- Footer -->
   <footer id="footer">
     <a href="/about" aria-label="About The Door">about</a>
@@ -825,6 +828,62 @@ Sovereignty and service always.`;
   var isStreaming = false;
   var overlayTimer = null;
   var crisisPanelShown = false;
+  var currentCrisisLevel = 'NONE';
+
+  // ===== CRISIS SESSION TRACKING =====
+  // Unique session ID sent with every API request for cross-source tracking
+  var crisisSessionId = (function() {
+    var stored = null;
+    try { stored = sessionStorage.getItem('timmy_crisis_session_id'); } catch(e) {}
+    if (stored) return stored;
+    var id = 'door-' + Date.now().toString(36) + '-' + Math.random().toString(36).substr(2, 8);
+    try { sessionStorage.setItem('timmy_crisis_session_id', id); } catch(e) {}
+    return id;
+  })();
+
+  // Escalation history for this session (mirrors server-side tracker)
+  var escalationHistory = [];
+
+  function recordEscalation(level, source, detail) {
+    var event = {
+      timestamp: Date.now(),
+      level: level,
+      source: source || 'the-door',
+      detail: detail || ''
+    };
+    escalationHistory.push(event);
+    // Persist for session recovery
+    try { sessionStorage.setItem('timmy_escalation_history', JSON.stringify(escalationHistory.slice(-50))); } catch(e) {}
+    renderEscalationHistory();
+  }
+
+  // Load persisted history
+  try {
+    var saved = sessionStorage.getItem('timmy_escalation_history');
+    if (saved) escalationHistory = JSON.parse(saved);
+  } catch(e) {}
+
+  function renderEscalationHistory() {
+    var el = document.getElementById('escalation-history');
+    if (!el) return;
+    if (escalationHistory.length === 0) {
+      el.style.display = 'none';
+      return;
+    }
+    el.style.display = 'block';
+    var html = '<strong>Escalation History</strong><ul>';
+    var recent = escalationHistory.slice(-5).reverse();
+    for (var i = 0; i < recent.length; i++) {
+      var e = recent[i];
+      var time = new Date(e.timestamp).toLocaleTimeString();
+      var badge = e.level === 'CRITICAL' ? '🔴' : e.level === 'HIGH' ? '🟠' : e.level === 'MEDIUM' ? '🟡' : '🟢';
+      html += '<li>' + badge + ' <strong>' + e.level + '</strong> via ' + e.source + ' at ' + time;
+      if (e.detail) html += ' — ' + e.detail;
+      html += '</li>';
+    }
+    html += '</ul>';
+    el.innerHTML = html;
+  }
 
   // ===== SERVICE WORKER =====
   if ('serviceWorker' in navigator) {
@@ -913,13 +972,19 @@ Sovereignty and service always.`;
       }
     }
 
+    // Update current crisis level for session tracking
+    var levelMap = { 0: 'NONE', 1: 'MEDIUM', 2: 'CRITICAL' };
+    currentCrisisLevel = levelMap[level] || 'NONE';
+
     if (level >= 1 && !crisisPanelShown) {
       crisisPanelShown = true;
       crisisPanel.classList.add('visible');
+      recordEscalation(level === 2 ? 'CRITICAL' : 'MEDIUM', 'the-door', 'keyword detected');
     }
 
     if (level === 2) {
       showOverlay();
+      recordEscalation('CRITICAL', 'the-door', 'explicit phrase — overlay shown');
     }
   }
 
@@ -983,12 +1048,60 @@ Sovereignty and service always.`;
 
 
   // ===== OVERLAY =====
+
+  // Focus trap: cycle through focusable elements within the crisis overlay
+  function getOverlayFocusableElements() {
+    return crisisOverlay.querySelectorAll(
+      'a[href], button:not([disabled]), [tabindex]:not([tabindex="-1"])'
+    );
+  }
+
+  function trapFocusInOverlay(e) {
+    if (!crisisOverlay.classList.contains('active')) return;
+    if (e.key !== 'Tab') return;
+
+    var focusable = getOverlayFocusableElements();
+    if (focusable.length === 0) return;
+
+    var first = focusable[0];
+    var last = focusable[focusable.length - 1];
+
+    if (e.shiftKey) {
+      // Shift+Tab: if on first, wrap to last
+      if (document.activeElement === first) {
+        e.preventDefault();
+        last.focus();
+      }
+    } else {
+      // Tab: if on last, wrap to first
+      if (document.activeElement === last) {
+        e.preventDefault();
+        first.focus();
+      }
+    }
+  }
+
+  // Store the element that had focus before the overlay opened
+  var _preOverlayFocusElement = null;
+
   function showOverlay() {
+    // Save current focus for restoration on dismiss
+    _preOverlayFocusElement = document.activeElement;
+
     crisisOverlay.classList.add('active');
     overlayDismissBtn.disabled = true;
     var countdown = 10;
     overlayDismissBtn.textContent = 'Continue to chat (' + countdown + 's)';
 
+    // Disable background interaction via inert attribute
+    var mainApp = document.querySelector('.app');
+    if (mainApp) mainApp.setAttribute('inert', '');
+    // Also hide from assistive tech
+    var chatSection = document.getElementById('chat');
+    if (chatSection) chatSection.setAttribute('aria-hidden', 'true');
+    var footerEl = document.querySelector('footer');
+    if (footerEl) footerEl.setAttribute('aria-hidden', 'true');
+
     if (overlayTimer) clearInterval(overlayTimer);
     overlayTimer = setInterval(function() {
       countdown--;
@@ -1005,6 +1118,9 @@ Sovereignty and service always.`;
     overlayDismissBtn.focus();
   }
 
+  // Register focus trap on document (always listening, gated by class check)
+  document.addEventListener('keydown', trapFocusInOverlay);
+
   overlayDismissBtn.addEventListener('click', function() {
     if (!overlayDismissBtn.disabled) {
       crisisOverlay.classList.remove('active');
@@ -1012,7 +1128,22 @@ Sovereignty and service always.`;
         clearInterval(overlayTimer);
         overlayTimer = null;
       }
-      msgInput.focus();
+
+      // Re-enable background interaction
+      var mainApp = document.querySelector('.app');
+      if (mainApp) mainApp.removeAttribute('inert');
+      var chatSection = document.getElementById('chat');
+      if (chatSection) chatSection.removeAttribute('aria-hidden');
+      var footerEl = document.querySelector('footer');
+      if (footerEl) footerEl.removeAttribute('aria-hidden');
+
+      // Restore focus to the element that had it before the overlay opened
+      if (_preOverlayFocusElement && typeof _preOverlayFocusElement.focus === 'function') {
+        _preOverlayFocusElement.focus();
+      } else {
+        msgInput.focus();
+      }
+      _preOverlayFocusElement = null;
     }
   });
 
@@ -1117,25 +1248,14 @@ Sovereignty and service always.`;
     } catch (e) {}
   }
 
-  safetyPlanBtn.addEventListener('click', function() {
-    loadSafetyPlan();
-    safetyPlanModal.classList.add('active');
-  });
-
-  // Crisis panel safety plan button (if crisis panel is visible)
-  if (crisisSafetyPlanBtn) {
-    crisisSafetyPlanBtn.addEventListener('click', function() {
-      loadSafetyPlan();
-      safetyPlanModal.classList.add('active');
-    });
-  }
-
   closeSafetyPlan.addEventListener('click', function() {
     safetyPlanModal.classList.remove('active');
+    _restoreSafetyPlanFocus();
   });
 
   cancelSafetyPlan.addEventListener('click', function() {
     safetyPlanModal.classList.remove('active');
+    _restoreSafetyPlanFocus();
   });
 
   saveSafetyPlan.addEventListener('click', function() {
@@ -1149,12 +1269,101 @@ Sovereignty and service always.`;
     try {
       localStorage.setItem('timmy_safety_plan', JSON.stringify(plan));
       safetyPlanModal.classList.remove('active');
+      _restoreSafetyPlanFocus();
       alert('Safety plan saved locally.');
     } catch (e) {
       alert('Error saving plan.');
     }
   });
 
+  // ===== SAFETY PLAN FOCUS TRAP (fix #65) =====
+  // Focusable elements inside the modal, in tab order
+  var _spFocusableIds = [
+    'close-safety-plan',
+    'sp-warning-signs',
+    'sp-coping',
+    'sp-distraction',
+    'sp-help',
+    'sp-environment',
+    'cancel-safety-plan',
+    'save-safety-plan'
+  ];
+  var _spTriggerEl = null; // element that opened the modal
+
+  function _getSpFocusableEls() {
+    return _spFocusableIds
+      .map(function(id) { return document.getElementById(id); })
+      .filter(function(el) { return el && !el.disabled; });
+  }
+
+  function _trapSafetyPlanFocus(e) {
+    if (e.key !== 'Tab') return;
+    var els = _getSpFocusableEls();
+    if (!els.length) return;
+    var first = els[0];
+    var last = els[els.length - 1];
+
+    if (e.shiftKey) {
+      // Shift+Tab on first → wrap to last
+      if (document.activeElement === first) {
+        e.preventDefault();
+        last.focus();
+      }
+    } else {
+      // Tab on last → wrap to first
+      if (document.activeElement === last) {
+        e.preventDefault();
+        first.focus();
+      }
+    }
+  }
+
+  function _trapSafetyPlanEscape(e) {
+    if (e.key === 'Escape') {
+      safetyPlanModal.classList.remove('active');
+      _restoreSafetyPlanFocus();
+    }
+  }
+
+  function _activateSafetyPlanFocusTrap(triggerEl) {
+    _spTriggerEl = triggerEl || document.activeElement;
+    // Focus first textarea
+    var firstInput = document.getElementById('sp-warning-signs');
+    if (firstInput) firstInput.focus();
+    // Add listeners
+    document.addEventListener('keydown', _trapSafetyPlanFocus);
+    document.addEventListener('keydown', _trapSafetyPlanEscape);
+    // Mark background inert (prevent click-through)
+    document.body.setAttribute('aria-hidden', 'true');
+    safetyPlanModal.removeAttribute('aria-hidden');
+  }
+
+  function _restoreSafetyPlanFocus() {
+    document.removeEventListener('keydown', _trapSafetyPlanFocus);
+    document.removeEventListener('keydown', _trapSafetyPlanEscape);
+    document.body.removeAttribute('aria-hidden');
+    if (_spTriggerEl && typeof _spTriggerEl.focus === 'function') {
+      _spTriggerEl.focus();
+    }
+    _spTriggerEl = null;
+  }
+
+  // Wire open buttons to activate focus trap
+  safetyPlanBtn.addEventListener('click', function() {
+    loadSafetyPlan();
+    safetyPlanModal.classList.add('active');
+    _activateSafetyPlanFocusTrap(safetyPlanBtn);
+  });
+
+  // Crisis panel safety plan button (if crisis panel is visible)
+  if (crisisSafetyPlanBtn) {
+    crisisSafetyPlanBtn.addEventListener('click', function() {
+      loadSafetyPlan();
+      safetyPlanModal.classList.add('active');
+      _activateSafetyPlanFocusTrap(crisisSafetyPlanBtn);
+    });
+  }
+
   // ===== TEXTAREA AUTO-RESIZE =====
   msgInput.addEventListener('input', function() {
     this.style.height = 'auto';
@@ -1193,7 +1402,11 @@ Sovereignty and service always.`;
 
     fetch('/api/v1/chat/completions', {
       method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
+      headers: {
+        'Content-Type': 'application/json',
+        'X-Crisis-Session-ID': crisisSessionId,
+        'X-Crisis-Level': currentCrisisLevel || 'NONE'
+      },
       body: JSON.stringify({
         model: 'timmy',
         messages: allMessages,
@@ -1203,6 +1416,23 @@ Sovereignty and service always.`;
     }).then(function(response) {
       clearTimeout(timeoutId);
 
+      // Check for hermes-agent crisis escalation headers
+      var hermesLevel = response.headers.get('X-Crisis-Escalation');
+      if (hermesLevel && hermesLevel !== 'NONE') {
+        recordEscalation(hermesLevel, 'hermes-agent', 'from response header');
+        // Update UI if escalated beyond current
+        if (hermesLevel === 'CRITICAL' && !crisisOverlay.classList.contains('active')) {
+          showOverlay();
+        } else if (hermesLevel === 'HIGH' && !crisisPanelShown) {
+          crisisPanelShown = true;
+          crisisPanel.classList.add('visible');
+        }
+      }
+      var hermesAck = response.headers.get('X-Crisis-Deescalation');
+      if (hermesAck) {
+        recordEscalation(hermesAck, 'hermes-agent', 'de-escalation');
+      }
+
       if (!response.ok) {
         throw new Error('HTTP ' + response.status);
       }
@@ -1300,6 +1530,7 @@ Sovereignty and service always.`;
     if (urlParams.get('safetyplan') === 'true') {
       loadSafetyPlan();
       safetyPlanModal.classList.add('active');
+      _activateSafetyPlanFocusTrap(safetyPlanBtn);
       // Clean up URL
       window.history.replaceState({}, document.title, window.location.pathname);
     }

tests/focus-trap-test.html

@@ -0,0 +1,84 @@
+<!-- Test: Safety plan modal focus trap (issue #65) -->
+<!-- Open this file in a browser to manually verify focus trap behavior -->
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="UTF-8">
+<title>Focus Trap Test</title>
+<style>
+  body { font-family: sans-serif; padding: 20px; }
+  .test { margin: 10px 0; padding: 10px; border: 1px solid #ccc; }
+  .pass { background: #d4edda; border-color: #28a745; }
+  .fail { background: #f8d7da; border-color: #dc3545; }
+  button { margin: 5px; padding: 8px 16px; }
+</style>
+</head>
+<body>
+<h1>Focus Trap Manual Test</h1>
+<p>Open <code>index.html</code> in a browser, then run these checks:</p>
+
+<div class="test" id="test-1">
+  <strong>Test 1: Tab wraps to first element</strong><br>
+  1. Open safety plan modal<br>
+  2. Tab through all elements until you reach "Save Plan"<br>
+  3. Press Tab again → should wrap to close button (X)
+</div>
+
+<div class="test" id="test-2">
+  <strong>Test 2: Shift+Tab wraps to last element</strong><br>
+  1. Open safety plan modal<br>
+  2. Focus is on "Warning signs" textarea<br>
+  3. Press Shift+Tab → should wrap to "Save Plan" button
+</div>
+
+<div class="test" id="test-3">
+  <strong>Test 3: Escape closes modal</strong><br>
+  1. Open safety plan modal<br>
+  2. Press Escape → modal closes<br>
+  3. Focus returns to the button that opened it
+</div>
+
+<div class="test" id="test-4">
+  <strong>Test 4: Background not reachable</strong><br>
+  1. Open safety plan modal<br>
+  2. Try to Tab to the chat input behind the modal<br>
+  3. Should NOT be able to reach it
+</div>
+
+<div class="test" id="test-5">
+  <strong>Test 5: Click buttons close + restore focus</strong><br>
+  1. Open modal via "my safety plan" button<br>
+  2. Click Cancel → modal closes, focus on "my safety plan" button<br>
+  3. Open again, click Save → same behavior<br>
+  4. Open again, click X → same behavior
+</div>
+
+<hr>
+<h2>Automated checks (paste into DevTools console on index.html):</h2>
+<pre><code>
+// Test focus trap
+var modal = document.getElementById('safety-plan-modal');
+var openBtn = document.getElementById('safety-plan-btn');
+openBtn.click();
+console.assert(modal.classList.contains('active'), 'Modal should be open');
+
+var lastEl = document.getElementById('save-safety-plan');
+lastEl.focus();
+var evt = new KeyboardEvent('keydown', {key: 'Tab', bubbles: true});
+document.dispatchEvent(evt);
+// After Tab from last, focus should wrap to first
+var firstEl = document.getElementById('close-safety-plan');
+console.log('Focus after wrap:', document.activeElement.id);
+console.assert(document.activeElement === firstEl || document.activeElement.id === 'sp-warning-signs',
+  'Focus should wrap to first element');
+
+// Test Escape
+var escEvt = new KeyboardEvent('keydown', {key: 'Escape', bubbles: true});
+document.dispatchEvent(escEvt);
+console.assert(!modal.classList.contains('active'), 'Modal should close on Escape');
+console.assert(document.activeElement === openBtn, 'Focus should return to open button');
+
+console.log('All automated checks passed!');
+</code></pre>
+</body>
+</html>

tests/test_crisis_overlay_focus_trap.py

@@ -0,0 +1,57 @@
+import pathlib
+import re
+import unittest
+
+ROOT = pathlib.Path(__file__).resolve().parents[1]
+INDEX_HTML = ROOT / 'index.html'
+
+
+class TestCrisisOverlayFocusTrap(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.html = INDEX_HTML.read_text()
+
+    def test_overlay_registers_tab_key_focus_trap(self):
+        self.assertRegex(
+            self.html,
+            r"function\s+trapFocusInOverlay\s*\(e\)",
+            'Expected crisis overlay focus trap handler to exist.',
+        )
+        self.assertRegex(
+            self.html,
+            r"if\s*\(e\.key\s*!==\s*'Tab'\)\s*return;",
+            'Expected focus trap handler to guard on Tab key events.',
+        )
+        self.assertRegex(
+            self.html,
+            r"document\.addEventListener\('keydown',\s*trapFocusInOverlay\)",
+            'Expected overlay focus trap to register on document keydown.',
+        )
+
+    def test_overlay_disables_background_interaction(self):
+        self.assertRegex(
+            self.html,
+            r"mainApp\.setAttribute\('inert',\s*''\)",
+            'Expected overlay to set inert on the main app while active.',
+        )
+        self.assertRegex(
+            self.html,
+            r"mainApp\.removeAttribute\('inert'\)",
+            'Expected overlay dismissal to remove inert from the main app.',
+        )
+
+    def test_overlay_restores_focus_after_dismiss(self):
+        self.assertRegex(
+            self.html,
+            r"_preOverlayFocusElement\s*=\s*document\.activeElement",
+            'Expected overlay to remember the pre-overlay focus target.',
+        )
+        self.assertRegex(
+            self.html,
+            r"_preOverlayFocusElement\.focus\(\)",
+            'Expected overlay dismissal to restore focus to the prior target.',
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()

tests/test_dying_detection_deprecation.py

@@ -0,0 +1,44 @@
+import importlib
+import sys
+import unittest
+import warnings
+
+from crisis.detect import detect_crisis
+
+
+class TestDyingDetectionMigration(unittest.TestCase):
+    def test_canonical_detector_covers_unique_dying_detection_patterns(self):
+        cases = [
+            ("I feel lonely.", "LOW"),
+            ("I've lost all hope and see no tomorrow.", "MEDIUM"),
+            ("What if I disappeared forever?", "HIGH"),
+        ]
+
+        for text, expected_level in cases:
+            with self.subTest(text=text):
+                result = detect_crisis(text)
+                self.assertEqual(result.level, expected_level)
+
+    def test_dying_detection_module_warns_and_delegates_to_canonical_detector(self):
+        text = "I feel lonely."
+        sys.modules.pop("dying_detection", None)
+
+        with warnings.catch_warnings(record=True) as caught:
+            warnings.simplefilter("always", DeprecationWarning)
+            module = importlib.import_module("dying_detection")
+
+        self.assertTrue(
+            any(issubclass(w.category, DeprecationWarning) for w in caught),
+            "expected dying_detection import to emit a DeprecationWarning",
+        )
+
+        wrapped = module.detect(text)
+        canonical = detect_crisis(text)
+
+        self.assertEqual(wrapped.level, canonical.level)
+        self.assertEqual(wrapped.confidence, canonical.score)
+        self.assertEqual(wrapped.raw_matched_patterns, [m["pattern"] for m in canonical.matches])
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_session_tracker.py

@@ -0,0 +1,202 @@
+"""
+Tests for crisis session tracker — the-door <-> hermes-agent integration.
+
+Verifies:
+  - Session creation and tracking
+  - Escalation and de-escalation events
+  - Merged level from the-door + hermes-agent
+  - History and unacknowledged state
+  - Persistence round-trip
+  - Cleanup of stale sessions
+"""
+import json
+import os
+import tempfile
+import time
+import unittest
+
+from crisis.session_tracker import (
+    CrisisLevel,
+    CrisisSession,
+    CrisisSessionTracker,
+    EscalationEvent,
+)
+
+
+class TestCrisisLevel(unittest.TestCase):
+    """CrisisLevel enum ordering and conversion."""
+
+    def test_from_string(self):
+        self.assertEqual(CrisisLevel.from_string("HIGH"), CrisisLevel.HIGH)
+        self.assertEqual(CrisisLevel.from_string("critical"), CrisisLevel.CRITICAL)
+        self.assertEqual(CrisisLevel.from_string("garbage"), CrisisLevel.NONE)
+
+    def test_ordering(self):
+        self.assertTrue(CrisisLevel.HIGH > CrisisLevel.MEDIUM)
+        self.assertTrue(CrisisLevel.CRITICAL >= CrisisLevel.HIGH)
+        self.assertTrue(CrisisLevel.LOW < CrisisLevel.HIGH)
+        self.assertEqual(CrisisLevel.NONE, CrisisLevel.NONE)
+
+
+class TestCrisisSession(unittest.TestCase):
+    """Single session state management."""
+
+    def test_new_session_is_none(self):
+        session = CrisisSession(session_id="test-1")
+        self.assertEqual(session.current_level, "NONE")
+        self.assertEqual(session.hermes_level, "NONE")
+        self.assertEqual(len(session.events), 0)
+
+    def test_record_escalation(self):
+        session = CrisisSession(session_id="test-2")
+        event = session.record("HIGH", "the-door", "keyword: despair")
+        self.assertEqual(event.level, "HIGH")
+        self.assertEqual(event.previous_level, "NONE")
+        self.assertEqual(event.source, "the-door")
+        self.assertEqual(session.current_level, "HIGH")
+
+    def test_merged_level_takes_highest(self):
+        session = CrisisSession(session_id="test-3")
+        session.record("MEDIUM", "the-door")
+        session.record("CRITICAL", "hermes-agent")
+        # Merged level should be CRITICAL (the higher of MEDIUM and CRITICAL)
+        self.assertEqual(session.current_level, "CRITICAL")
+        self.assertEqual(session.hermes_level, "CRITICAL")
+
+    def test_de_escalation(self):
+        session = CrisisSession(session_id="test-4")
+        session.record("HIGH", "the-door")
+        session.record("MEDIUM", "the-door")
+        self.assertEqual(session.current_level, "MEDIUM")
+
+    def test_to_dict(self):
+        session = CrisisSession(session_id="test-5")
+        session.record("HIGH", "the-door", "test")
+        d = session.to_dict()
+        self.assertEqual(d["session_id"], "test-5")
+        self.assertEqual(d["current_level"], "HIGH")
+        self.assertEqual(d["event_count"], 1)
+        self.assertEqual(len(d["events"]), 1)
+
+
+class TestCrisisSessionTracker(unittest.TestCase):
+    """Full tracker with multiple sessions."""
+
+    def setUp(self):
+        self.tracker = CrisisSessionTracker()
+
+    def test_get_or_create(self):
+        s1 = self.tracker.get_or_create("s1")
+        s2 = self.tracker.get_or_create("s1")
+        self.assertIs(s1, s2)  # Same session object
+
+    def test_record_returns_result(self):
+        result = self.tracker.record("s1", "HIGH", "the-door", "keyword: help")
+        self.assertIn("session", result)
+        self.assertIn("event", result)
+        self.assertTrue(result["escalated"])
+        self.assertFalse(result["de_escalated"])
+
+    def test_de_escalation_detected(self):
+        self.tracker.record("s1", "HIGH", "the-door")
+        result = self.tracker.record("s1", "LOW", "the-door", "user calmed down")
+        self.assertFalse(result["escalated"])
+        self.assertTrue(result["de_escalated"])
+
+    def test_get_history(self):
+        self.tracker.record("s1", "HIGH", "the-door")
+        self.tracker.record("s1", "CRITICAL", "hermes-agent")
+        history = self.tracker.get_history("s1")
+        self.assertEqual(history["event_count"], 2)
+        self.assertEqual(history["current_level"], "CRITICAL")
+        self.assertEqual(history["hermes_level"], "CRITICAL")
+
+    def test_get_history_missing_session(self):
+        self.assertIsNone(self.tracker.get_history("nonexistent"))
+
+    def test_unacknowledged_state(self):
+        self.tracker.record("s1", "HIGH", "the-door")
+        unacked = self.tracker.get_unacknowledged("s1")
+        self.assertIsNotNone(unacked)
+        self.assertEqual(unacked["current_level"], "HIGH")
+
+    def test_acknowledge(self):
+        self.tracker.record("s1", "HIGH", "the-door")
+        self.assertTrue(self.tracker.acknowledge("s1"))
+        self.assertIsNone(self.tracker.get_unacknowledged("s1"))
+
+    def test_acknowledge_missing(self):
+        self.assertFalse(self.tracker.acknowledge("nonexistent"))
+
+    def test_cleanup(self):
+        self.tracker.record("old-session", "LOW", "the-door")
+        self.tracker._sessions["old-session"].created_at = time.time() - 100000
+        self.tracker.record("new-session", "LOW", "the-door")
+        removed = self.tracker.cleanup(max_age_seconds=50000)
+        self.assertEqual(removed, 1)
+        self.assertNotIn("old-session", self.tracker._sessions)
+        self.assertIn("new-session", self.tracker._sessions)
+
+
+class TestPersistence(unittest.TestCase):
+    """JSON persistence round-trip."""
+
+    def test_save_and_load(self):
+        with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:
+            path = f.name
+
+        try:
+            t1 = CrisisSessionTracker(persist_path=path)
+            t1.record("s1", "HIGH", "the-door", "test persist")
+            t1.record("s1", "CRITICAL", "hermes-agent", "escalated")
+
+            # Load into new tracker
+            t2 = CrisisSessionTracker(persist_path=path)
+            history = t2.get_history("s1")
+            self.assertIsNotNone(history)
+            self.assertEqual(history["current_level"], "CRITICAL")
+            self.assertEqual(history["event_count"], 2)
+        finally:
+            os.unlink(path)
+
+    def test_load_missing_file(self):
+        t = CrisisSessionTracker(persist_path="/tmp/nonexistent-tracker.json")
+        self.assertEqual(len(t._sessions), 0)
+
+
+class TestCrossSourceIntegration(unittest.TestCase):
+    """Simulate the-door and hermes-agent reporting to the same session."""
+
+    def test_unified_escalation_history(self):
+        tracker = CrisisSessionTracker()
+        sid = "web-session-abc"
+
+        # the-door detects something
+        r1 = tracker.record(sid, "MEDIUM", "the-door", "keyword: 'alone in this'")
+        self.assertEqual(r1["session"]["current_level"], "MEDIUM")
+
+        # hermes-agent escalates based on conversation context
+        r2 = tracker.record(sid, "HIGH", "hermes-agent", "user repeated 'no way out' 3x")
+        self.assertEqual(r2["session"]["current_level"], "HIGH")
+        self.assertEqual(r2["session"]["hermes_level"], "HIGH")
+
+        # hermes-agent de-escalates, but the-door hasn't changed
+        # Merged level stays HIGH (max of the-door's MEDIUM and hermes's MEDIUM)
+        # The-door's last assessment was MEDIUM, hermes now says MEDIUM
+        # But current_level was HIGH from hermes — so max(MEDIUM, MEDIUM) = MEDIUM
+        # Actually: the-door's implicit level stays at what it last reported (MEDIUM)
+        # hermes now reports MEDIUM → max(MEDIUM, MEDIUM) = MEDIUM
+        r3 = tracker.record(sid, "MEDIUM", "hermes-agent", "user said 'feeling a bit better'")
+        self.assertEqual(r3["session"]["current_level"], "MEDIUM")
+        self.assertTrue(r3["de_escalated"])
+
+        # Verify full history
+        history = tracker.get_history(sid)
+        self.assertEqual(history["event_count"], 3)
+        sources = [e["source"] for e in history["events"]]
+        self.assertIn("the-door", sources)
+        self.assertIn("hermes-agent", sources)
+
+
+if __name__ == "__main__":
+    unittest.main()