GTM API / Check proxy location

Run a multi-vendor geo + fraud check on one or many proxies. Target EXACTLY ONE of sid (ab_px_) or filter; filter mode checks up to an inline cap and reports total_matched (truncated:true when the cap was hit). An exit country that disagrees with country_code is listed in country_mismatched and parks the row as country_mismatch (emits antidetect-browser-proxies.country-mismatch) unless a LinkedIn session seen through the proxy confirmed its country: the geo vendors never write country_code, only that reading moves it or returns a parked row to active, and the browsers on the proxy keep the country their client chose; a fraud score over the threshold flips the row to fraud_flagged (emits its event). Rows the vendors could not settle are listed in inconclusive with a reason (no_ip_port / exit_unreachable / no_corroboration) and left untouched, so total_checked counts only rows that got a verdict. Contract: - MCP tool check_antidetect_browser_proxy_location, registry package mcp.linkedin/antidetect_browser_proxies, mount linkedin.browsers. - Operation action, response envelope action. - Flags: mass action: this verb's own request accepts a filter or targets[] set, which the owning service drains.