{"found":true,"collection":"failure_modes","library_url":"https://www.grokbotdb.com/library/fm.silent-no-op-after-takeover","generated":"2026-09-06T05:32:11Z","citation":["Quote the record id and its source_url (or provenance if there is no URL).","Include last_verified or observed_at when present. Do not present an old date as current.","If tier is community and confidence is low, say so. Do not launder it into a fact.","If the database does not hold the answer, say that. Do not invent Grok Bot product claims.","Contradictions are data: when conflicts_with is present, report both records rather than picking a favourite.","Deprecated and removed records stay visible. They are history, not current guidance."],"record":{"id":"fm.silent-no-op-after-takeover","title":"Action silently produces nothing after a human clears a CAPTCHA and hands control back","symptom":"The Bot clicks, a spinner appears, and then nothing exists anywhere: no output in the target application, no toast, no error, no credit charge message. The run looks like it succeeded.","cause":"The cloud browser trips anti-bot defences; after human takeover and handback the underlying action fails without surfacing an error to the agent or the operator.","detection":"Compare the target system's own record against the Bot's report. There is no in-product signal; the Bot reports calmly either way.","fix":"Require every routine to emit a reviewable artifact naming what it produced and where, and give an empty result its own named outcome rather than treating it as success. Prefer an official API over the browser wherever one exists. Vendor named three fixes in flight on 2026-08-12 (cleaner takeover detection, less bot-flagged fingerprinting, proper error surfacing); no source through 2026-09-02 reports them shipped.","severity":"high","source_id":"src.community.forum.suno-captcha","source_url":"https://forum.cursor.com/t/grok-bot-agent-computer-blocked-by-cloudflare-hcaptcha-on-suno-create-often-silent-fails/168082","confidence":"high","first_seen":"2026-09-03","last_verified":"2026-09-03"}}