Trading Monitor

Trading Monitor Skill

Overview

Monitor trading bot health and performance through log analysis and process inspection. Extract actionable metrics without spawning expensive sub-agents.

Use Cases

• Check if trading bot is running (PID status)
• Tail logs for recent errors or trades
• Extract performance metrics (P&L, win rate, trades)
• Monitor VPIN/kill switch status
• Debug trading issues

Core Tools

1. Check Bot Status

# Check if process is running
ps aux | grep "python.*main\.py" | grep -v grep

# Check specific PID
ps -p <PID> -o pid,etime,%cpu,%mem,command

2. Tail Trading Log

# Recent activity (last 50 lines)
tail -50 /tmp/nemo-trading-fixed.log

# Search for specific patterns
grep -E "(ERROR|WARNING|Trade|Position)" /tmp/nemo-trading-fixed.log | tail -20

# Extract metrics from status lines
grep "Balance:" /tmp/nemo-trading-fixed.log | tail -1

3. Extract Metrics

# Parse metrics from log
grep -oP "Balance: \$[0-9.]+" /tmp/nemo-trading-fixed.log | tail -1
grep -oP "Trades: [0-9]+" /tmp/nemo-trading-fixed.log | tail -1
grep -oP "Win Rate: [0-9.]+%" /tmp/nemo-trading-fixed.log | tail -1
grep -oP "VPIN: [✅⚠️🔴]" /tmp/nemo-trading-fixed.log | tail -1

4. Count Errors

# Error count in last hour
grep "$(date '+%Y-%m-%d %H:')" /tmp/nemo-trading-fixed.log | grep -c "ERROR"

# VPIN kill switch activations
grep -c "VPIN KILL SWITCH ACTIVATED" /tmp/nemo-trading-fixed.log

Workflow

Quick Health Check

1. Check PID running
2. Tail last 10 log lines
3. Extract current metrics
4. Report status

Deep Analysis

1. Get error count (last hour)
2. Count trades executed
3. Analyze VPIN patterns
4. Check Kelly/Chainlink status
5. Generate summary

Output Format

## Trading Bot Status — HH:MM

| Metric | Value |
|--------|-------|
| Status | 🟢 Running / 🔴 Stopped |
| PID | 75997 |
| Runtime | 2h 15min |
| Trades | 12 |
| Balance | $500.00 |
| Win Rate | 0.0% |
| VPIN | ✅ OK |

### Recent Activity
- Last 5 log entries...

### Issues (if any)
- Error count: 2
- Warnings: 5 VPIN alerts

Log Locations

Common Patterns

Healthy Bot

• PID running
• Regular "cycle" log entries
• VPIN: ✅ OK or occasional warnings
• New rounds detected every 5 min

Issues to Watch

• "ERROR" in logs
• VPIN: 🔴 CRITICAL for extended periods
• No trades in >30 min during market hours
• Kill switch active >10 min (stuck)

Error Patterns

• float division by zero — Position sizing math
• VPIN calculation failed — Flow toxicity detection
• Strategy error — Individual trade failure

Integration

Use this skill instead of spawning agents for:

• Hourly status checks
• Quick debugging
• Metrics extraction
• Log grepping

Cost: $0 (vs $0.004 per agent)
Speed: 5 seconds (vs 30 min)