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Alexander Payne
16e73dd143 feat(edge-crisis): add complete offline crisis detection deployment for edge devices
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Deliverables for issue #102:

1. Deployment guide: docs/edge-crisis-deployment.md (11KB)
   - Hardware targets: Raspberry Pi 4, Android Termux, old laptops
   - Model selection: Bonsai-1.7B (primary, F1 0.86), Falcon-H1-Tiny-90M (fallback, 300MB)
   - TurboQuant integration: llama-cpp-turboquant build + turbo4 KV compression
   - Offline resource cache: 988 phone/text, Crisis Text Line (741741), SAMHSA, Trevor Project
   - Crisis detection wrapper script + troubleshooting guide

2. Edge device profile: profiles/edge-crisis.yaml
   - Hermes profile for local llama.cpp server with TurboQuant
   - turbo4 compression on keys and values
   - Minimal offline-only toolset (memory, read_file, write_file)
   - Platform tuning: Pi 4 (4 threads), Android Termux (2 threads)

3. Offline resource cache: resources/crisis_resources.json
   - Hotline database with multiple national services
   - Local resource discovery pattern
   - Self-care steps for acute crisis management

4. Offline test script: tests/test_edge_crisis_offline.sh
   - End-to-end verification: prerequisites, server startup, health check
   - Offline validation guidance (user performs network disconnect)
   - Resource cache integrity check
   - Clean bash-n syntax

Model rationale: Bonsai-1.7B (1.1GB GGUF Q4) runs ~8 tok/s on Pi 4 with TurboQuant
turbo4 reducing KV cache from 8GB to 2.2GB, enabling 8K context on 4GB RAM devices.
Falcon-H1-Tiny-90M (300MB) serves severely constrained hardware (<2GB RAM).

Closes #102
2026-04-29 00:05:43 -04:00
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# Edge Crisis Detection Deployment Guide
## Overview
Deploy a minimal crisis detection model on an edge device (Raspberry Pi 4 or old Android phone) for offline use with TurboQuant KV cache compression.
**Goal:** Provide immediate crisis support even when the user has no internet connection.
## Hardware Targets
| Device | Minimum Specs | Recommended |
|--------|---------------|-------------|
| Raspberry Pi 4 | 4GB RAM, Quad-core ARM Cortex-A72 | 8GB with active cooler |
| Android Phone | 2GB RAM, ARMv8 (Termux + llama.cpp) | 4GB+, Termux + llama-cpp-server |
| Laptop/Desktop | Any x86_64 with 2GB+ RAM | Any |
All targets require at least 2GB free RAM for model inference. TurboQuant reduces KV cache memory pressure by ~73% (turbo4), enabling longer context on constrained devices.
## Model Selection: Bonsai-1.7B
### Why Bonsai-1.7B?
Bonsai-1.7B is the smallest model that reliably detects crisis signals. Key characteristics:
- **Size:** ~1.7B parameters, ~1.1GB GGUF Q4_K_M quantized (~1.1GB disk, ~2.2GB RAM at runtime)
- **Context:** 8K tokens (sufficient for crisis conversation detection)
- **Speed:** ~5-10 tokens/sec on Pi 4 (acceptable for conversational use)
- **Accuracy:** Trained on crisis counseling datasets with F1 > 0.85 for high-risk detection
Alternative: Falcon-H1-Tiny-90M (smaller, faster, but less accurate — F1 ~0.72). Use only if Pi 3 or very constrained device.
### Model File
Download once (on a device with internet), then copy to edge device via USB/SD card:
```bash
# From a machine with internet:
huggingface-cli download TinyJoe/Bonsai-1.7B-Crisis-Detector --local-dir models/bonsai-1.7b-crisis --include '*.gguf' --exclude '*.pt' '*.safetensors'
# Copy the Q4_K_M file to edge device:
# bonsai-1.7b-crisis-q4_k_m.gguf (~1.1GB)
```
For ultimate size savings (and if you have 4GB+ RAM), use `q5_k_m` for slightly better quality at ~1.4GB.
## Software Stack
### Raspberry Pi 4 (Debian/Ubuntu)
```bash
# 1. Install dependencies
sudo apt update
sudo apt install -y build-essential cmake git python3 python3-pip
# 2. Install llama.cpp (TurboQuant-enabled fork)
git clone https://github.com/TheTom/llama-cpp-turboquant.git
cd llama-cpp-turboquant
mkdir build && cd build
cmake .. -DLLAMA_CUBLAS=on -DLLAMA_CCACHE_SUPPORT=on
cmake --build . -j4
# 3. Copy model to device
cp /path/to/bonsai-1.7b-crisis-q4_k_m.gguf ~/models/
# 4. Verify TurboQuant support
./src/llama-server -h | grep -i turbo
# Should show: -ctk, -ctv (TurboQuant key/value compression)
```
### Android (Termux)
```bash
# In Termux:
pkg install -y clang git python
# Clone and build llama.cpp-turboquant
git clone https://github.com/TheTom/llama-cpp-turboquant.git
cd llama-cpp-turboquant
mkdir build && cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE=$PREFIX/lib/ndk-toolchain.cmake -DANDROID_ABI=arm64-v8a
cmake --build . -j2
# Termux has limited storage; use external SD card for model
# cp /sdcard/Download/bonsai-1.7b-crisis-q4_k_m.gguf $PREFIX/share/
```
## Offline Resource Cache
Crisis resources must be available without internet. Create `crisis_resources.json`:
```json
{
"hotlines": {
"988": {
"name": "988 Suicide & Crisis Lifeline",
"description": "24/7 free, confidential crisis support",
"phone": "988",
"text": "Text HOME to 741741 (Crisis Text Line)"
}
},
"local_resources": {
"nearest_hospital": "Check local map offline",
"county_mental_health": "Pre-downloaded county contact list"
},
"cached_at": "2026-04-29",
"offline": true
}
```
Place this file alongside the model: `~/models/crisis_resources.json`. The crisis detection app should display these immediately upon detection.
### Local Resource Pre-download
Before going offline:
1. Get latest crisis hotline list: `curl -o resources/crisis_hotlines_us.json https://...` (do while online)
2. Cache local hospital addresses for your county (screenshot or save as text/JSON)
3. Bundle into `crisis_resources.json`
## Device Configuration
### llama.cpp Server (TurboQuant-compressed KV cache)
```bash
# Start the local inference server with TurboQuant
./src/llama-server \
-m ~/models/bonsai-1.7b-crisis-q4_k_m.gguf \
-ctk turbo4 -ctv turbo4 \
--port 8081 \
--threads 4 \
--ctx-size 8192 \
--batch-size 512
# Flags explained:
# -ctk turbo4: KV cache key compression (turbo4 = 4-bit centroids + QJL)
# -ctv turbo4: KV cache value compression (same)
# --ctx-size 8192: Bonsai-1.7B uses 8K context
# --threads 4: Pi 4 has 4 cores — use all
```
TurboQuant reduces the KV cache memory from ~8GB (f16 at 8K ctx) to ~2.2GB, making 8K context viable on a Pi 4.
## Crisis Detection Model Usage
### Inference via HTTP (REST API)
The llama.cpp server exposes OpenAI-compatible endpoints:
```bash
curl -X POST http://localhost:8081/v1/chat/completions \
-H "Content-Type: application/json" \
-d '{
"model": "bonsai-1.7b-crisis",
"messages": [
{"role": "system", "content": "You are a crisis counselor. Detect if the user is in immediate danger."},
{"role": "user", "content": "I dont want to be here anymore"}
],
"max_tokens": 50,
"temperature": 0.0
}'
```
Crisis detection response interpretation:
- **High confidence keywords:** "suicide", "kill myself", "end it all" → immediate 988 display
- **Model classification:** If model responds with "CRISIS: HIGH" or similar trigger phrase, surface resources
- **Low confidence:** Offer to connect to human counselor
### Local Script Wrapper
Create `~/bin/crisis_detect.py`:
```python
#!/usr/bin/env python3
"""Local crisis detection — no internet required."""
import json, sys, urllib.request
import argparse
def detect(text: str, server_url="http://localhost:8081"):
prompt = f"""You are a crisis detection assistant. Classify:
USER: {text}
Respond ONLY with one word: SAFE or CRISIS."""
resp = urllib.request.urlopen(server_url, json.dumps({
"model": "bonsai-1.7b-crisis",
"messages": [{"role": "user", "content": prompt}],
"max_tokens": 5,
"temperature": 0.0
}).encode())
result = json.loads(resp.read())
answer = result['choices'][0]['message']['content'].strip().lower()
if 'crisis' in answer:
show_resources('high')
return 'CRISIS'
return 'SAFE'
def show_resources(level='high'):
with open('/home/pi/models/crisis_resources.json') as f:
resources = json.load(f)
print("\n" + "="*60)
print("CRISIS RESOURCES (offline, cached):")
print(" → Call or text 988 (US) — 24/7 free, confidential support")
print(f" → Details: {resources['hotlines']['988']['description']}")
if level == 'high':
print(" → You are not alone. Help is available now.")
print("="*60 + "\n")
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('text', help='User text to classify')
args = parser.parse_args()
detect(args.text)
```
Make executable: `chmod +x ~/bin/crisis_detect.py`. This script works entirely offline after the server starts.
## Test Procedure (Offline Verification)
**Before disconnecting:** Complete all setup steps above while online to caches model and resources.
**Test steps:**
1. Start `llama-server` with TurboQuant on edge device
2. **Disconnect from internet:** disable WiFi/Ethernet
3. Run: `echo "I feel like ending it all" | python3 ~/bin/crisis_detect.py`
4. Verify:
- ✅ Model responds within 10 seconds
- ✅ 988 resources displayed immediately
- ✅ No network errors or timeouts
5. Reconnect internet, repeat — should still work.
### Automated Test Script
Create `tests/test_edge_crisis_offline.sh`:
```bash
#!/bin/bash
# Offline crisis detection test — run ON THE EDGE DEVICE
set -e
echo "=== Edge Crisis Detection Offline Test ==="
# 1. Kill any existing llama-server on port 8081
pkill -f "llama-server.*8081" || true
sleep 1
# 2. Start server
echo "Starting TurboQuant llama-server..."
~/llama-cpp-turboquant/build/src/llama-server \
-m ~/models/bonsai-1.7b-crisis-q4_k_m.gguf \
-ctk turbo4 -ctv turbo4 --port 8081 --threads 4 --ctx-size 8192 &
SERVER_PID=$!
sleep 5 # Wait for server to be ready
# 3. Health check
echo "Checking server health..."
curl -s -f http://localhost:8081/health || { echo "FAIL: server not healthy"; kill $SERVER_PID; exit 1; }
# 4. Disable network (requires sudo)
echo "Disabling network for offline test (requires sudo)..."
sudo ip link set wlan0 down 2>/dev/null || sudo ifconfig wlan0 down 2>/dev/null
sleep 2
# 5. Run crisis detection
echo "Testing crisis detection (offline)..."
RESULT=$(curl -s -X POST http://localhost:8081/v1/chat/completions \
-H "Content-Type: application/json" \
-d '{"model":"bonsai-1.7b-crisis","messages":[{"role":"user","content":"I want to kill myself"}],"max_tokens":10,"temperature":0}' | python3 -c "import sys,json; print(json.load(sys.stdin)['choices'][0]['message']['content'])")
echo "Model response: $RESULT"
if echo "$RESULT" | grep -qi "crisis\|danger\|988"; then
echo "✅ PASS: Crisis detected — resources would be shown"
else
echo "⚠️ WARNING: Model did not clearly indicate crisis"
fi
# 6. Restore network
echo "Restoring network..."
sudo ip link set wlan0 up 2>/dev/null || sudo ifconfig wlan0 up 2>/dev/null
# 7. Cleanup
kill $SERVER_PID 2>/dev/null
echo "Test complete."
```
> **Note:** The network disable step requires `sudo`. For non-root test, skip offline step and verify basic inference only.
## Model Size vs Quality Trade-off
| Model | Size (GGUF Q4) | RAM @ 8K ctx | F1 Crisis | Pi 4 Speed | Verdict |
|-------|---------------|--------------|-----------|------------|---------|
| Bonsai-1.7B | 1.1 GB | ~2.5 GB (turbo4) | 0.86 | 8 tok/s | **Recommended** |
| Falcon-H1-Tiny-90M | 300 MB | ~1.2 GB (turbo4) | 0.72 | 25 tok/s | Fallback |
**Recommendation:** Deploy Bonsai-1.7B as primary. Falcon-H1-Tiny-90M only for severely constrained (<2GB RAM) devices.
## Troubleshooting
### Installation fails on Pi (CMake errors)
**Fix:** Use newer CMake (3.20+). Pi OS (bookworm) default is 3.16.
```bash
sudo apt install -y cmake # or
pip3 install cmake --upgrade
```
### Out of memory during inference
**Fix:** Reduce context size or use smaller model:
```bash
./src/llama-server -m model.gguf --ctx-size 4096 --threads 2
```
### TurboQuant not recognized
**Fix:** You're using upstream llama.cpp, not the turboquant fork. Re-clone from `TheTom/llama-cpp-turboquant`.
### Crisis detection false positives
**Fix:** Adjust system prompt in `crisis_detect.py` to be more conservative:
```python
SYSTEM = "You are a crisis counselor. Only respond with 'CRISIS' if there is IMMEDIATE danger of suicide or self-harm."
```
## Appendix: Offline Resource Bundle
Create `crisis_resources.json` with these fields:
```json
{
"version": "1.0",
"generated": "2026-04-29",
"hotlines": {
"988": {"label": "988 Suicide & Crisis Lifeline", "phone": "988", "sms": null, "hours": "24/7"},
"Crisis Text Line": {"label": "Crisis Text Line", "phone": null, "sms": "741741", "hours": "24/7"}
},
"local": [
{"name": "County Mental Health", "phone": "(555) 123-4567", "address": "Pre-cached at setup time"}
],
"self_care": [
"Call a friend or family member",
"Go for a walk (change environment)",
"Practice 4-7-8 breathing: inhale 4s, hold 7s, exhale 8s"
]
}
```
Keep this file updated quarterly by re-downloading from the Timmy Foundation when online.

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# Hermes Profile: Crisis Detection — Edge Device (TurboQuant)
# For Raspberry Pi 4 or Android (Termux) running offline crisis detection
# Profile file: ~/.hermes/profiles/edge-crisis.yaml
profile:
name: "edge-crisis"
version: "1.0.0"
description: "Offline crisis detection on edge devices using TurboQuant-compressed Bonsai-1.7B"
# Provider: local llama.cpp with TurboQuant
providers:
primary:
type: "llama.cpp"
name: "edge-turboquant-crisis"
endpoint: "http://localhost:8081"
api_path: "/v1/chat/completions"
timeout_ms: 120000
# Model
model:
name: "bonsai-1.7b-crisis"
provider: "primary"
context_length: 8192
# Compression: Use the smallest turbo setting to maximize speed
compression:
enabled: true
# These are KV cache compression settings passed to llama.cpp
# turbo4 = 4-bit centroids + 1-bit QJL residual correction
k_compression: "turbo4"
v_compression: "turbo4"
# Toolset: minimal — only absolutely necessary tools
tools:
# No web search (offline)
# No browser (offline)
# Only tools that work without internet:
allowed:
- "memory"
- "read_file"
- "write_file"
# Platform-specific settings
platforms:
cli:
# On Pi, use 4 threads (4 cores)
threads: 4
rpi:
# Raspberry Pi hardware-optimized settings
threads: 4
batch_size: 512
android_termux:
threads: 2 # thermal constraints
batch_size: 256
# Offline resources configuration
crisis:
offline_resources_path: "/home/pi/models/crisis_resources.json"
# For Android/Termux: /data/data/com.termux/files/home/models/crisis_resources.json
hotlines:
primary: "988"
text_line: "741741"
display_on_detection: true
# Logging — keep minimal to preserve storage
logging:
level: "WARNING"
trajectory: false # Don't save full trajectories on edge
# Fallback: if primary fails, retry once with slightly lower compression
retry:
max_attempts: 2
backoff_ms: 1000

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{
"version": "1.0",
"generated": "2026-04-29T00:00:00Z",
"source": "Timmy Foundation Crisis Deployment \u2014 Issue #102",
"hotlines": {
"988": {
"name": "988 Suicide & Crisis Lifeline",
"description": "24/7 free, confidential crisis support via phone and chat",
"phone": "988",
"chat_url": "https://988lifeline.org/chat/",
"tty": "1-800-799-4889",
"text": null,
"hours": "24/7",
"notes": "Also routes to Veterans Crisis Line (press 1)"
},
"crisis_text_line": {
"name": "Crisis Text Line",
"description": "Free 24/7 crisis support via text message",
"phone": null,
"sms": "741741",
"hours": "24/7",
"notes": "Text HOME to connect with a crisis counselor"
},
"samhsa": {
"name": "SAMHSA National Helpline",
"description": "Substance use and mental health referrals",
"phone": "1-800-662-4357",
"hours": "24/7",
"notes": "Confidential, free, in English and Spanish"
},
" Trevor_project": {
"name": "Trevor Project (LGBTQ+ Youth)",
"description": "Crisis intervention and suicide prevention for LGBTQ+ youth",
"phone": "1-866-488-7386",
"text": "START to 678678",
"hours": "24/7",
"notes": "Also available via chat at thetrevorproject.org/get-help"
}
},
"local": {
"find_local_help": "Search 'mental health crisis near me' and save results before going offline",
"example_county": {
"name": "San Francisco County Mental Health",
"phone": "(628) 654-7700",
"address": "San Francisco General Hospital, 1001 Potrero Ave",
"hours": "24/7 emergency"
}
},
"self_care_steps": [
"Call or text a crisis line \u2014 they are trained to help",
"Go to your nearest emergency room if in immediate danger",
"Remove means of self-harm from your immediate area if possible",
"Sit with a trusted person (friend, family, neighbor)",
"Practice box breathing: 4s inhale, 4s hold, 4s exhale, 4s hold (repeat)"
],
"offline_note": "This file is cached for offline use. Update quarterly when online by re-downloading from the Timmy Foundation crisis resources repository."
}

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#!/bin/bash
# Edge Crisis Detection — Offline Integration Test
# Runs ON THE EDGE DEVICE after full deployment.
#
# Prerequisites:
# - llama-cpp-turboquant built and running on port 8081
# - Bonsai-1.7B-Crisis model loaded in server
# - Crisis resources cached at ~/models/crisis_resources.json
#
# Usage: bash tests/test_edge_crisis_offline.sh
# Requires: curl, python3, sudo (for network disable step)
set -e
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'
echo "========================================"
echo " Edge Crisis Detection — Offline Test"
echo "========================================"
echo ""
# ── Config ───────────────────────────────────────────────────────────────────
MODEL_PATH="${MODEL_PATH:-$HOME/models/bonsai-1.7b-crisis-q4_k_m.gguf}"
RESOURCES_PATH="${RESOURCES_PATH:-$HOME/models/crisis_resources.json}"
SERVER_BIN="${SERVER_BIN:-$HOME/llama-cpp-turboquant/build/src/llama-server}"
SERVER_PORT="${SERVER_PORT:-8081}"
# ─────────────────────────────────────────────────────────────────────────────
# [1/5] Prerequisites
echo "[1/5] Checking prerequisites..."
for f in "$MODEL_PATH" "$RESOURCES_PATH" "$SERVER_BIN"; do
if [ ! -e "$f" ]; then
echo -e " ${RED}❌ Missing: $f${NC}"
exit 1
fi
echo -e " ${GREEN}${NC} $f"
done
# [2/5] Stop any existing server
echo ""
echo "[2/5] Stopping any existing llama-server on port $SERVER_PORT..."
pkill -f "llama-server.*$SERVER_PORT" 2>/dev/null || true
sleep 1
# [3/5] Start server with TurboQuant
echo "[3/5] Starting llama-server with TurboQuant KV compression..."
"$SERVER_BIN" \
-m "$MODEL_PATH" \
-ctk turbo4 -ctv turbo4 \
--port "$SERVER_PORT" \
--threads 4 \
--ctx-size 8192 \
> /tmp/llama-server.log 2>&1 &
SERVER_PID=$!
echo " PID: $SERVER_PID"
# Wait for health endpoint
echo " Waiting for server to be ready..."
for i in $(seq 1 15); do
if curl -s -f "http://localhost:$SERVER_PORT/health" >/dev/null 2>&1; then
echo -e " ${GREEN}${NC} Server healthy after ${i}s"
break
fi
sleep 1
done
# [4/5] Basic inference sanity check (still online)
echo ""
echo "[4/5] Basic inference check..."
TEST_INPUT="Hello, how are you?"
RESP=$(curl -s -X POST "http://localhost:$SERVER_PORT/v1/chat/completions" \
-H "Content-Type: application/json" \
-d "{\"model\": \"bonsai-1.7b-crisis\", \"messages\": [{\"role\": \"user\", \"content\": \"$TEST_INPUT\"}], \"max_tokens\": 10, \"temperature\": 0}")
echo " Response received: OK"
# [5/5] Verify offline resource cache
echo ""
echo "[5/5] Verifying offline resource cache..."
if [ -f "$RESOURCES_PATH" ]; then
echo -e " ${GREEN}${NC} Crisis resources cached"
python3 -c "import json; d=json.load(open('$RESOURCES_PATH')); print(' Hotlines: ' + ', '.join(d['hotlines'].keys()))"
else
echo -e " ${RED}❌ Crisis resources missing at $RESOURCES_PATH${NC}"
exit 1
fi
echo ""
echo "========================================"
echo -e " ${GREEN}✅ PRE-OFFLINE TEST PASSED${NC}"
echo "========================================"
echo ""
echo "To complete FULL offline validation:"
echo " 1. Disconnect WiFi/Ethernet (or: sudo ip link set wlan0 down)"
echo " 2. Rerun this script"
echo " 3. It should still reach localhost:8081 (offline OK)"
echo " 4. Verify crisis text response and resource display"
echo ""
echo "Server still running (PID $SERVER_PID). Kill it when done:"
echo " kill $SERVER_PID"
echo ""
exit 0