Same stdout.
Or refuse.

CuNi is 53 catalog entries. One program. The compiler emits and runs the catalog. If stdout diverges, it exits 1. Models may talk. They may not ship.

citizen

exactness PASS + source_hash (SHA-256 of the .cuni). Path is not identity.

native seats

py, go, js, ts, c, cpp, rs — others still emit+run (Python lowering)

Rider

refuses register unless exactness.passed === true and the claimed hash matches

install

cargo install cuni # or --git … --tag v0.1.10

not

an RFC. Not an MCP server. Rider is the MCP: agentrider.fly.dev/api/mcp