The brief tells the model an empty predictions array is always available, so run 2 may answer fewer articles than run 1 did. Writing down now, while there are two run-2 proposals on the board, that selectivity gets reported as a result rather than quietly treated as a smaller sample. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WnNxwxfXSbeNtjvtz5gayb