Discovery helper: valid filter keys, group_by values, built-in metric names, sample entity keys, and optional contract paths. Call this before get_metrics when unsure of allowed values.
Corewebvitals source site3 tools on this site
What this tool does
Discovery helper: valid filter keys, group_by values, built-in metric names, sample entity keys, and optional contract paths. Call this before get_metrics when unsure of allowed values. Use it on Corewebvitals with an agent. It runs in the browser on the website and needs no package install.
How to install
Open the corewebvitals.io website and ask your browser agent to use list_options
Run with an agent
Use the list_options tool on corewebvitals.io with kind: <string>, include_paths: <boolean>. Return the structured result and cite the source page.
Input contract
kindstringSubset to return. Omit or "all" for the full discovery payload.
include_pathsbooleanIf true, include technique contract path samples when available.
Verify the live listing at the source before a production call. Fields marked as a starter contract may differ from what the site expects.