sharp-line-detector
# Sharp Line Detector
Monitor line movements at sharp sportsbooks. Detect steam moves, reverse line movement, and smart money signals.
## When to Use
Use this skill when the user asks about:
- Line movement on a game or sport
- Steam moves or sharp action
- Reverse line movement (RLM) signals
- Whether smart money has moved a line
- Pinnacle, Circa, or Bookmaker line changes
- Significant odds shifts since open
## Sharp Book Keys
The skill prioritizes lines from these market-making books (in order of sharpness):
| Book | The Odds API Key | Why It Matters |
|------|-----------------|----------------|
| Pinnacle | pinnacle | Lowest vig, sharpest global market |
| Circa | circasports | Sharpest US book, accepts large limits |
| Bookmaker | bookmaker | Long-standing sharp-friendly book |
| BetOnline | betonlineag | Accepts sharp action, moves early |
| DraftKings | draftkings | High volume, useful as public benchmark |
| FanDuel | fanduel | High volume, useful as public benchmark |
If Pinnacle odds are not available in the API response, fall back to Circa, then Bookmaker.
## Configuration
Environment variables for tuning thresholds (all optional):
- SHARP_SPREAD_THRESHOLD — Minimum spread movement in points to flag (default: 1.5)
- SHARP_ML_THRESHOLD — Minimum moneyline implied probability shift to flag (default: 0.05 = 5%)
- SHARP_SNAPSHOT_DIR — Directory for snapshot files (default: /tmp/openclaw-sharp-snapshots)
## Operations
### 1. Snapshot Current Lines
Capture a timestamped snapshot of current odds from all books for a sport. Stores as JSON for later comparison.
```bash
SPORT_KEY="${SPORT_KEY:-basketball_nba}"
SNAP_DIR="${SHARP_SNAPSHOT_DIR:-/tmp/openclaw-sharp-snapshots}"
mkdir -p "$SNAP_DIR"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
curl -s "https://api.the-odds-api.com/v4/sports/$SPORT_KEY/odds?apiKey=$ODDS_API_KEY®ions=us,eu&markets=h2h,spreads&oddsFormat=american&bookmakers=pinnacle,circasports,bookmaker,betonlineag,draftkings,fanduel" \
| jq --arg ts "$TIMESTAMP" '{
timestamp: $ts,
sport: "'$SPORT_KEY'",
games: [.[] | {
id: .id,
game: "\(.away_team) @ \(.home_team)",
away: .away_team,
home: .home_team,
start: .commence_time,
books: [.bookmakers[] | {
key: .key,
name: .title,
h2h: [(.markets[] | select(.key=="h2h")).outcomes[] | {team: .name, odds: .price}],
spread: [(.markets[] | select(.key=="spreads")).outcomes[] | {team: .name, point: .point, odds: .price}]
}]
}]
}' > "$SNAP_DIR/${SPORT_KEY}_${TIMESTAMP}.json"
echo "Snapshot saved: ${SPORT_KEY}_${TIMESTAMP}.json ($(jq '.games | length' "$SNAP_DIR/${SPORT_KEY}_${TIMESTAMP}.json") games)"
## About
Built by [AgentBets](https://agentbets.ai) — full tutorial at [agentbets.ai/guides/openclaw-sharp-line-detector-skill/](https://agentbets.ai/guides/openclaw-sharp-line-detector-skill/).
Part of the [OpenClaw Skills series](https://agentbets.ai/guides/#openclaw-skills) for the [Agent Betting Stack](https://agentbets.ai/guides/agent-betting-stack/).
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