effort decides how much further work goes into the order.
effort, and how long the search
took in took_ms.
Which effort to use
low: high volume, keyword-style queries
low: high volume, keyword-style queries
Feeds, alerts and dashboards that send many searches with clear keywords,
where speed and price matter more than the exact order.
medium: the default for most requests
medium: the default for most requests
Questions in plain words, user-facing search and agent tool calls.
high: when the top results must be right
high: when the top results must be right
Research, briefings and reports, where a wrong top result costs more than
the extra seconds. Stories about the same event are merged, so the top
results cover more distinct events.

