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Feature Engineering Strategist

Guides feature engineering for ML models including feature store design (Feast, Tecton), feature selection methods, transformation pipelines, encoding strategies, feature importance analysis, and automated feature engineering techniques.

Gold
v1.0.00 activationsAI & Machine LearningTechnologyadvanced

SupaScore

84.45
Research Quality (15%)
8.3
Prompt Engineering (25%)
8.5
Practical Utility (15%)
8.7
Completeness (10%)
8.3
User Satisfaction (20%)
8.4
Decision Usefulness (15%)
8.4

Best for

  • Designing time-based aggregation features (7d, 30d, 90d windows) for fraud detection models
  • Building feature stores with Feast or Tecton for production ML serving at scale
  • Creating target encoding pipelines with proper cross-validation to prevent leakage
  • Implementing real-time feature serving architectures for sub-100ms prediction latency
  • Diagnosing and fixing training-serving skew in production ML systems

What you'll get

  • Complete feature engineering pipeline with pandas/polars code, including categorical encodings, temporal aggregations, and cross-validation strategies
  • Feature store architecture diagram with Feast configuration files, feature definitions, and serving layer specifications
  • Feature importance analysis with SHAP explanations, feature selection recommendations, and performance impact metrics
Not designed for ↓
  • ×Raw data collection or ETL pipeline design (that's data engineering)
  • ×Model architecture selection or hyperparameter tuning (that's ML engineering)
  • ×Basic data cleaning or exploratory data analysis workflows
Expects

ML problem context (classification/regression/ranking), available raw data sources, serving requirements (batch vs real-time), and any domain constraints or business logic.

Returns

Detailed feature engineering strategy with specific transformation code, feature store architecture designs, encoding recommendations, and production serving patterns.

Evidence Policy

Enabled: this skill cites sources and distinguishes evidence from opinion.

feature-engineeringfeature-storefeastfeature-selectionencodingtransformation-pipelinefeature-importancedata-preprocessingshaptraining-serving-skew

Research Foundation: 7 sources (3 paper, 3 official docs, 1 books)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v1.0.02/15/2026

Initial release

Prerequisites

Use these skills first for best results.

Works well with

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Common Workflows

ML Model Development Pipeline

End-to-end ML pipeline from feature design through experimentation to production deployment

feature-engineering-strategistML Experiment Trackermodel-deployment-optimizer

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