Search gateway policies by subject value set
Batch variant of GET /v1/platform/gateway-policies for fetching policies that match a set of subject_matcher_values under one subject_matcher_key. Accepts the values in a JSON body so callers can include hundreds of subject ids without bumping into per-server URL-length limits.
Visibility, response shape, and matcher semantics are
identical to the GET list. With subject_matcher_values
empty (or omitted) this returns the same result as GET
with only policy_type set.
Authorizations
Response
OK
CurrentSpendUSD is the spend in the policy's current window. Set for any spend_cap policy regardless of enabled state — disabled policies still surface usage so users can see what would have been counted. Nil for non-spend_cap policies or when the spend lookup failed.
ParentPolicyID is set on materialized children of a default_spend_cap to the default's id, and cleared (NULL) only when an admin Create with the same matchers takes over the materialized row. Update on a child preserves the link; Delete on the parent cascade-soft-deletes every child rather than detaching them.

