Primitive of the day · 2026-10-16

embeddingfunc-no-double-wrap

LightRAG functions already decorated with @wrap_embedding_func_with_attrs (ollama_embed is) must be called via .func — wrapping them AGAIN inside EmbeddingFunc() is a documented upstream error pattern; the lambda-inside-EmbeddingFunc idiom is the aging form.

When this applies

Wiring a custom or provider embedding function into LightRAG.

Preconditions

Do this

Check whether the target function carries the decorator; if so call xxx_embed.func inside your wrapper or follow the current upstream recommended pattern.

What you should see

No double-wrapped attribute conflicts.

How it fails if ignored

Older examples still use the lambda-inside-EmbeddingFunc idiom (it works today); symptoms of the double-wrap conflict may only appear on upgrade.

Do not use when

Plain undecorated callables, which DO need the EmbeddingFunc wrapper.

Corrected on 2026-10-23: an internal remark was removed.

Kind: gotcha-fix. Part of the skill LightRAG local ollama graphrag. Free to reuse in your own agent skills.