fenic-mechanics

Use when writing, editing, or debugging code that uses fenic (the fenic Python library, imported as import fenic as fc) — the semantic-DataFrame engine with LLM operators (semantic.map/extract/classify/predicate/reduce, embeddings), jq/markdown/transcript processing, chunking, and fuzzy matching. Covers fenic's import & namespace structure, semantic-operator calling conventions, model/session config, and known…