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Two signal-quality fixes for the scrum loop: 1. isBlindResponse() — detects models that emit structurally-valid review JSON containing "no source code visible / cannot verify" even when source WAS supplied. Rejects so the ladder cycles to the next rung instead of accepting the blind hallucination. 2. verifyAnchorGrounding() + appendGroundingFooter() — post-process verifier that extracts every backtick-quoted snippet from the review and checks it against the original source content. Appends a grounding footer reporting grounded vs ungrounded counts so humans can audit hallucination rate at a glance. Born from the iter where llm_team_ui.py review came back with 6/10 findings hallucinated (invented render_template_string calls, fabricated logger.exception sites, made-up SHA-256 hashing). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>