kraken-alert-patterns

kraken-alert-patterns

Use this skill for:

• monitoring price levels and triggering alerts
• detecting spread widening, volume spikes, and volatility shifts
• watching account state changes (fills, balance drops)
• building notification-driven agent workflows

Price Alert (Polling)

Check price at intervals and compare against thresholds:

PRICE=$(kraken ticker BTCUSD -o json 2>/dev/null | jq -r '.[].last_price')
# Agent compares $PRICE to upper/lower thresholds
# If breached, notify the user

Price Alert (Streaming)

More efficient for continuous monitoring. The agent reads the stream and fires when conditions are met:

kraken ws ticker BTC/USD -o json 2>/dev/null | while read -r line; do
  LAST=$(echo "$line" | jq -r '.data[0].last // empty')
  [ -z "$LAST" ] && continue
  # Compare against thresholds, break or notify on breach
done

Spread Alert

Detect when the bid-ask spread widens beyond a threshold (liquidity warning):

kraken ws ticker BTC/USD --event-trigger bbo -o json 2>/dev/null | while read -r line; do
  ASK=$(echo "$line" | jq -r '.data[0].ask // empty')
  BID=$(echo "$line" | jq -r '.data[0].bid // empty')
  [ -z "$ASK" ] || [ -z "$BID" ] && continue
  SPREAD=$(echo "$ASK - $BID" | bc)
  # Alert if spread exceeds threshold
done

Volume Spike Detection

Compare current 24h volume against a baseline:

kraken ticker BTCUSD -o json 2>/dev/null | jq -r '.[].volume_24h'
# Agent compares to historical average
# Alert if volume > 2x baseline

Volatility Alert (OHLC-Based)

Read recent candles and compute range or standard deviation:

kraken ohlc BTCUSD --interval 60 -o json 2>/dev/null
# Agent calculates high-low range per candle
# Alert if range exceeds threshold

Balance Change Alert

Monitor for unexpected balance changes:

INITIAL=$(kraken balance -o json 2>/dev/null | jq -r '.USD // "0"')
# On each check:
CURRENT=$(kraken balance -o json 2>/dev/null | jq -r '.USD // "0"')
# Alert if |CURRENT - INITIAL| exceeds threshold