ot-cost-analysislisted

# OT Cost Analysis ## Overview This skill produces should-cost estimates and price reasonableness analyses for OT agreements. Unlike FAR-based IGCEs that structure costs around contract type pricing mechanisms (wrap rates, burden multipliers, cost pools), OT cost analysis structures the estimate around milestones and cost-sharing arrangements. The performer proposes a price per milestone; the government's job is to determine whether that price is reasonable and how much of it the government pays vs. the performer. **Why this is one skill, not three:** The existing IGCE builders (FFP, LH/T&M, CR) are split because each has a structurally different calculation engine -- FFP uses layered wrap rates, LH/T&M uses a single burden multiplier, CR uses cost pools plus three fee subtypes. OTs don't have that divergence. The pricing mechanism is consistently milestone-based: estimate should-cost per milestone, apply cost-sharing ratio, compare to proposed price. Fixed-price milestones vs. cost-type milestones change one column, not the engine. Cost-sharing is a ratio, not a multi-subtype fork. **Required L1 skills (must be installed):** 1. **BLS OEWS API** -- market wage data for labor benchmarking 2. **GSA CALC+ Ceiling Rates API** -- market rate validation 3. **GSA Per Diem Rates API** -- federal travel rates **Required API keys (must be in user memory):** - BLS API key (v2) for BLS OEWS - api.data.gov key for GSA Per Diem - CALC+ requires no key If a key is missing, prompt the