Learn the controls and knobs

Primary knobs for hybrid search: lexical weight, vector weight, RRF k, candidate pools, reranker depth, filters.

Write a sheet for the technical support search assistant with columns: control, current value, predicted benefit, predicted cost, rollback trigger. Fill it using this topic’s real tension: Hybrid raises recall and latency/complexity. Heavy lexical weight helps IDs and hurts paraphrase. Rerankers improve order and cost milliseconds.

Change one hybrid search family at a time. If you move two knobs and the technical support search assistant improves, you learned a cocktail, not a cause—and you cannot roll back surgically.

End users of the technical support search assistant should see only safe dials related to hybrid search. Infrastructure limits, private prompts, and policy thresholds stay server-owned. A user-facing control that bypasses those limits is a vulnerability dressed as UX for hybrid search.

Publish the hybrid search control sheet next to the technical support search assistant runbook. On-call should see which knob moved in the last deploy without reading chat archaeology. Unknown hybrid search knobs are unowned knobs.

Also pin one numeric memory from this hybrid search chapter: On 50 tickets, pure vector recall@5=0.72, pure BM25=0.64, RRF hybrid=0.86—report denominators. That number is not decoration; it is a template for how claims about hybrid search on the technical support search assistant should look in design docs. Scoped specifically to hybrid search / technical support search assistant / controls-and-knobs.

People confuse hybrid search with neighboring buzzwords when debugging the technical support search assistant. Before changing prompts, ask whether the broken stage was evidence gathering, the hybrid search judgment itself, validation, or the product action. Fixing the wrong stage creates folklore (“we tried hybrid search and it failed”) that blocks the next team on the technical support search assistant. Scoped specifically to hybrid search / technical support search assistant / controls-and-knobs.

Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to hybrid search rag rather than generic AI advice.

Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to hybrid search rag rather than generic AI advice.

Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to hybrid search rag rather than generic AI advice.