Asks the Writ user (the person who owns this Writ account) to step in on an open browser session: complete a security check (CAPTCHA, 'confirm it's you', Arkose/hCaptcha/reCAPTCHA puzzle) in the live browser, supply a one-time 2FA code, or answer a question only they can decide. For: writ_browser_act returning security_check with auto_solved false; a twofa action failing with twofa_mint_failed or twofa_no_persona (kind='twofa'); any point where only a human can proceed. A one-time code is NOT a first-resort ask: twofa_method_mismatch and twofa_verify_method mean the page is on a method other than the persona's, which the page itself switches or resends, as the message says. With kind='twofa' the user pastes the code in the Writ app and Writ enters it server-side, so it never reaches you; kind='question' returns the user's text, so a code sent that way would reach the conversation. The session pauses (the user is notified in the app and by email and controls the live page); this call holds up to 60s and returns status 'answered' (with solved / answer, or entered for twofa), 'waiting_for_user' (the same call with the same session_id keeps waiting while the user holds the page), or 'expired'.