Compatibility target: Google
Two distinct Google evidence classes
The original Google Search string is labeled google_user_search. Expanded searches found inside a recognized AI Overview container are labeled observed_expanded_query.
Normal result links and unrelated page text do not become observations.
Reconstructing missing expansions
When Google does not visibly expose the full fan-out, the user can request an estimate. The configured Gemini endpoint is tested for native logprob support; if it does not return aligned token probabilities, Open Queries uses repeated Gemini samples and reports the uncertainty explicitly.
Useful for GEO, without invented certainty
The trace can reveal alternative formulations and evidence needs around Google AI search. Open Queries does not describe estimated candidates as searches that definitely occurred.