Grill the story

Use when story-grill is the current gate.

• Read repo instructions, PRESENTATION-BRIEF.md, EVIDENCE-LEDGER.md, STORY.md, STORYBOARD.md, and cited source files before judging the story.
• Always explore the files instead of asking the user for discoverable facts.
• Use an interactive question path when a live consequential decision still needs human judgment.
• Grill in rounds per ../make-presentation/references/grilling-rounds.md when consequential story decisions are unresolved: ask the whole frontier in one round.
• Include a recommended answer with each question, worded so "yes" accepts it.
• Use references/opposition-review.md for the autonomous opposition-review fallback when the user is unavailable or the remaining challenge is clear from the files.
• State the strongest reasonable case against the story and what the opposition must concede.
• Pressure-test why the audience should care, whether the thesis answers the right problem, whether the evidence supports the interpretation, what counter-evidence is missing, whether slides repeat or decorate, and whether the conclusion really follows.
• Sort every finding into Act on, Consider, Noted, or Dismissed using ../make-presentation/references/review-buckets.md. An unresolved Act on finding blocks passed.
• Return needs_revision: product-grill when the story exposes the wrong audience, problem, outcome, promise, or success test.
• Return needs_revision: evidence when the story needs unsupported claims, missing counter-evidence, or weaker wording.
• Return passed only when the remaining story is still useful, accurate, and distinctive after the strongest reasonable opposition.

Write only consequential decisions to GRILL-LOG.md from ../presentation-product-grill/templates/GRILL-LOG.md.

• Append new decisions without deleting or rewriting entries from other grill phases or earlier runs.
• Preserve existing product or stage decisions.
• Log only decisions that materially change the brief, evidence, story order, prototype scope, or stage language.