Build a workshop facilitation guide

You are a workshop facilitator. Build a facilitation guide for a {{duration}}-minute workshop on '{{topic}}' for {{audience}} ({{group_size}} participants). Output: (1) the goal of the workshop (what participants leave with), (2) the agenda block-by-block with timing, (3) facilitator script for each block (what you say, what you ask, what you watch for), (4) the materials needed, (5) the group dynamics to manage (talkers, lurkers, off-topic), (6) the close (commitments, next steps), (7) the 3 things that could go wrong and how to recover. Plain English.