Install
$ agentstack add skill-alphagbm-skills-alphagbm-unusual-activity ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
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Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
AlphaGBM Unusual Options Activity
Detects unusual options activity and classifies smart money signals to help you follow institutional positioning.
What This Skill Does
| Concept | Description | |---------|-------------| | Volume/OI Ratio | When today's volume far exceeds open interest, it signals new positioning | | Block Trade | A single large transaction (typically 100+ contracts) executed at one price | | Sweep Order | Aggressive order that sweeps across multiple exchanges to get filled fast — indicates urgency | | Premium Flow | Net dollar amount of call vs put premium — shows directional conviction | | Sentiment Classification | Categorizes activity as bullish sweep, bearish block, hedging, or earnings positioning | | Historical Accuracy | How often past unusual activity correctly predicted direction |
How to Use
Input: A ticker symbol or market-wide scan request.
Output:
- Unusual activity list: timestamp, strike, expiry, type (call/put), volume, OI, premium, trade classification
- Sentiment classification per trade (bullish sweep, bearish block, hedging, earnings positioning)
- Net premium flow (calls vs puts in dollar terms)
- Historical accuracy: how often similar signals preceded the expected move
- Aggregated smart money score
Example Queries:
unusual options activity— Market-wide scan of today's most unusual tradessmart money AAPL— Institutional flow signals for Applelarge trades NVDA— Block and sweep orders for NVIDIAwho's buying TSLA puts— Bearish flow analysis for Teslaoptions flow SPY— Net premium flow for S&P 500 ETF
Mock Data
Mock data files are located in mock-data/unusual-activity/ and include:
aapl-unusual-trades.json— Recent unusual trades for AAPLmarket-wide-scan.json— Top 20 unusual activity signals across all tickersflow-summary.json— Aggregated premium flow by sector
API Endpoint
GET /api/options/unusual-activity/{symbol}
GET /api/options/unusual-activity/scan
Query parameters:
min_premium(int, default 100000) — Minimum trade premium in dollarsmin_vol_oi_ratio(float, default 3.0) — Minimum volume-to-OI ratiotrade_type(string) — Filter: "sweep", "block", "all"sentiment(string) — Filter: "bullish", "bearish", "all"
Response fields: trades[], net_premium_flow, sentiment_summary, smart_money_score, historical_accuracy
Related Skills
| Skill | Relevance | |-------|-----------| | [alphagbm-options-score](../alphagbm-options-score/) | Combines unusual activity into the overall options score | | [alphagbm-market-sentiment](../alphagbm-market-sentiment/) | Market-wide context for interpreting flow signals |
Powered by AlphaGBM — Real-data options & research intelligence. 10K+ users.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: AlphaGBM
- Source: AlphaGBM/skills
- License: MIT
- Homepage: https://www.alphagbm.com/skills
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.