whale-hunting SKILL.md skillA
whale-hunting from staskh/trading_skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add staskh/trading_skills/whale-hunting@git:20261103.57f517aPins git:20261103.57f517a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- staskh/trading_skills
- Path
.claude/skills/whale-hunting/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261103.57f517a, committed Nov 3, 2026
- First version recorded
- Apr 2, 2026
- Size
- 5,032 bytes
- Repository stars
- 406
- License
- MIT
Detect institutional whale activity in options for a given underlying. Use when the user asks about unusual options activity, large block trades, whale trades, or institutional options flow for a specific symbol.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Whale Hunting Scans option chains for a given underlying to identify institutional-sized trades using a two-step approach: 1. **Crude scan** (Yahoo Finance) — finds contracts with anomalous daily investment vs the rest of the chain. 2. **Precise drill-down** (Massive API) — fetches per-second bars for each candidate and flags seconds with outlier dollar invested. ## Instructions > **Note:** If `uv` is not installed or `pyproject.toml` is not found, replace `uv run python` with `python` in all commands below. ```bash uv run python .claude/skills/whale-hunting/scripts/whale_hunting.py SYMBOL [--months N] [--date YYYY-MM-DD] [--sigma F] [--sigma-z F] [--summary] ``` ## Arguments - `SYMBOL` — Underlying ticker (e.g. `AAPL`, `NVDA`, `SPY`) - `--months` — Max months until option expiration to consider (default: 2) - `--date` — Trading date to analyze in `YYYY-MM-DD` format (default: latest trading day) - `--sigma` — Std-deviation multiplier for crude outlier threshold (default: 3.0) - `--sigma-z` — Modified Z-Score threshold for per-second small-sample detection (default: 3.5) - `--summary` — Also compute per-ticker summary and include it in the JSON output ## Output …
Read the whole file at its exact version.
How to install
mdr add staskh/trading_skills/whale-hunting@sha256:57e24b8030e97faeThe line at the top of this page pins the label git:20261103.57f517a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_hloxfcgf3ud2pwrf)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 2, 2026 and Nov 3, 2026, about one every 107 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261103.57f517a latest | 2026-11-03 | 57f517a | 5,032 B | A | view · diff |
| git:20260430.ef6e1c4 | 2026-04-30 | ef6e1c4 | 4,278 B | A | view · diff |
| git:20260402.2b35ca5 | 2026-04-02 | 2b35ca5 | 4,093 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5032 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
staskh/trading_skills · 406 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hloxfcgf3ud2pwrf GET https://markdownregistry.com/api/v1/resolve?ref=staskh/trading_skills/whale-hunting GET https://markdownregistry.com/api/v1/blob/57e24b8030e97faed1892889a359872c6cb84bc78c156662516e3af826670381
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.