Circus

Aliases: —

Provenance: commit d4b5487865 · authored 2026-02-12T12:49:05+01:00 · agent claude-code · model sonnet

1 source · not in taxonomy (canonical name didn't match any upstream)

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

channel input, output : Z

process Counter = begin
  state CounterState = [count : Z]

  Initial = [CounterState' | count' = 0]

  Increment = [ΔCounterState | count' = count + 1]

  GetCount = [ΞCounterState; out! : Z | out! = count]

  • Initial ; μ X • (input?x → Increment ; X ⊓ output!count → GetCount ; X)
end