Cloudflare released privacy-client (pvcli) under Apache 2.0 — CLI debugger for OHTTP and eventually MASQUE. Curl-like syntax for humans and AI agents. Sandbox: ohttp.info. Beta-tested with unnamed customers. Addresses split-trust privacy relays (Apple iCloud Private Relay, Microsoft Edge Secure Network). Tooling gap: debugging visibility conflicts with privacy design. Product manager Darling: for companies not Apple/Microsoft-sized.