marketplace-recsys-feature-engineering

marketplace-recsys-feature-engineering is a Model training & evaluation skill for AI agents, published by pproenca in the dot-skills repository on GitHub. Skillspace rates marketplace-recsys-feature-engineering C (71/100) and it passed the safety scan; the rating is based on static analysis only.

Feature engineering for marketplace recommenders — what to extract from raw marketplace assets (listing photos, owner-entered listing metadata, sitter wizard responses) to power item-to-item (similar listings), user-to-item (homefeed ranking), or user-to-user (mutual-fit matching) recommenders. Covers asset auditing, first-principles feature decomposition, vision-feature extraction (CLIP, room-type, amenities, aesthetics), listing text and metadata encoding, sitter wizard design, derived-composition patterns for i2i / u2i / u2u (ANN shelves, two-tower, mutual-fit), feature quality governance (training-serving parity, drift, PII), and incremental value proof (ablation A/B, kill reviews, feature-free baseline). Trigger even when the user does not explicitly say "feature engineering" but is asking how to get more signal out of listing photos, listing metadata, or the sitter onboarding wizard, or how to improve i2i / u2i / u2u quality without blindly ingesting a new model.

Grade

C

Quality

71 / 100

Safety

Passed

GitHub stars

180

Unproven: rated by static analysis only, not yet compared head-to-head.

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