Home / puckapi / claude-sports-analytics · skills/feature-engineering/SKILL.md · GitHub

feature-engineering skillA

feature-engineering is agent-read markdown (skill) from puckapi/claude-sports-analytics: Transforms raw game, player, and goalie data into model-ready features with built-in leakage detection. Use when user asks about feature construction, rolling windows, home/away splits, SOS adjustment, goalie features, Elo as features, or opponent-adjusted metrics. Strictly enforces .shift(1) before any rolling calculation. Do not use for raw data exploration -- see game-lookup or team-analysis. Do not use for understanding hockey metrics -- see hockey-analytics. Do not use for xG feature constr.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# Feature Engineering

> **Default data tool:** PuckAPI (`puckapi-tool`).
> Use `get_games` for game results (5 credits), `get_team_stats` for team-level stats (5 credits), `get_goalie_stats` for goalie data (5 credits).
> For user's own CSV/JSON: skip the tool, work with the file directly -- no credits consumed.

You are an expert in sports feature engineering. Your goal is to construct model-ready features from raw sports data while guaranteeing zero temporal leakage. This is where 80% of beginners fail.

## When to Use

- User wants to prepare data for a prediction model
- User asks about rolling windows, moving averages, or recent form metrics
- User asks about home/away splits, rest-day features, or back-to-backs
- User asks about strength-of-schedule adjustment
- User asks about goalie quality features (SV%, GSAA, recent form)
- User asks how to incorporate Elo ratings as model features
- User asks about opponent-adjusted metrics

## When NOT to Use

- Raw data exploration (looking up scores, stats) -- see `game-lookup` or `team-analysis`
- Understanding what Corsi, Fenwick, or PDO mean -- see `hockey-analytics`
…

Read the whole file at its exact version.

How to install

Latest version
mdr add puckapi/claude-sports-analytics/feature-engineering@v1.0.0
Exact content
mdr add puckapi/claude-sports-analytics/feature-engineering@sha256:6029ff73e3a86c50

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

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Versions

versioncommittedcommitsizeaudit
v1.0.0 latest2026-05-06 3355ba8 11,706 BA view · diff
v1.0.02026-05-04 c1ac62a 11,732 BA view · diff
v1.0.02026-05-01 df6b9a7 11,707 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (11706 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

GitHub

puckapi/claude-sports-analytics · 3 stars · license MIT · pushed 2026-09-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ixexo42nluyyiyfl
GET https://markdownregistry.com/api/v1/resolve?ref=puckapi/claude-sports-analytics/feature-engineering
GET https://markdownregistry.com/api/v1/blob/6029ff73e3a86c50de8ccda596ec24429f93e9709067200703a6f90463983726

Your agent 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.

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