What Is Universe?
Short answer: Universe is the set of names a skill is allowed to evaluate — geographies, sectors, market cap, liquidity, asset classes, exclusions. If it is outside the universe, the agent should not stretch.
Why it matters in a harness
A Livermore breakout skill on an illiquid microcap, or a Graham net-net on a perp meme, is not “creative.” It is out of spec. Universe + circle of competence keep plugins from dumping the whole market into the wrong process.
Common keys in the schema: geographies, sectors, marketCap, liquidity, exclusions, dataRequirements.
Related: Market regime · Investment schema
Nothing here is financial advice.