Mock Screen Defense (Query + EDA Artifact)

# Submission: Mock Screen Defense (Query + EDA Artifact) ## Brief Defend one timed screen set (SQL queries + EDA artifact) in a recorded 15-minute walkthrough with 5 minutes of self-graded follow-up answers. ## Dataset Messy orders CSV + transactions file (same as m0-l2 cases) with a holdout question revealed at record time (no prep beyond the timed set). ## Starter guardrails (plan 88) Screen-set template (queries + counts + 3 charts max); recording checklist; follow-up bank (5 questions) answered in writing alongside the video. ## 100-pt rubric Query correctness 30; EDA insight quality 25; narration/structure 20; follow-up answers 15; recording discipline (timeboxes hit) 10. ## Deterministic checks -> LLM review Checks: recording present + <= 20 min; queries run (outputs attached); follow-ups answered. LLM review grades reasoning and grilling readiness.