What “source-backed” means here
Eachsearch_videos result can include:
video_id,start_secs, andend_secsto identify the source and locationclip_urlto open the relevant part of the videothumbnail_base64to provide the matched frame to a vision-capable modeltext_snippetfor matching spoken contentrelevance_scoreto order results from the same search
Why this matters for agent reliability
Search narrows a video library to relevant segments that a model can inspect. This reduces the amount of context the model must process, but it does not guarantee a correct answer. Require the agent to callsearch_videos before making claims about the library. For important claims, require a video_id, timestamp, and short explanation of the supporting evidence.