Function agent_has_identity_binding 

pub fn agent_has_identity_binding(
    mstore: &Store,
    identity_store: &Store,
    agent_id: &str,
) -> bool

Whether an agent has any identity binding — its own links, or its template’s when it has none — checked without the binding resolver’s “no links” warning. For callers that ask on every sweep (memory), so an unlinked agent costs a lookup, not a log line.