Records (never refuses) a curl/wget to a host fetched content named, when the command expands something at run time: the GET-exfil shape the floor leaves open. The designed rule — body-carrying calls to tainted hosts — is dominated by curl-body/curl-upload/wget-body, which already refuse every body, so it would have shadowed nothing and looked like a clean result. One case table drives the Rust predicate and the generated shell; they agree on all ten cases (attack spellings, link-following, untainted expansion, subdomain limit, non-fetches), and every case exits 0. The gate reads the file the tap writes on both tiers (tested). Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>