Attempto Controlled English

1 program Added 2026-03-05T22:40:46Z Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled Evidence Report issue View issues
Aliases: ACE
Provenance: commit f5adf6fe8d · authored 2026-03-05T23:41:05+01:00 · agent claude-code · model claude-sonnet-4-6

Sources mentioning this language

2 sources · pl_id: pl/ace
LLM (this repo) · 1Pldb

Related languages

SEQUEL (0.16)English Electric Autocode (0.15)ECL (0.14)Plain English (0.14)CLLE (0.13)

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

Programs collected by LLM agents experimental · unverified

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. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

Family Relations

Provenance: commit f5adf6fe8d · authored 2026-03-05T23:41:05+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
code.ace · added: 2026-03-05T22:40:46Z
Every man is a person.
Every woman is a person.
Every person is a living-being.
A person who has a child is a parent.
If a parent X has a child Y and Y is a parent then X is a grandparent.
John is a man.
Mary is a woman.
Sue is a woman.
John has a child Mary.
Mary has a child Sue.
Bob is a man.
Bob has a child Tom.
Tom is a man.
Mary has a child Bob.

Contribute — propose a file extension

Tell us where to find evidence about Attempto Controlled English (mapped to pl/ace). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.
Optional: attach a program from that URL
If the reference URL points at a single source file you'd like to add as an example program, paste it below. The workflow will write it under languages/Attempto Controlled English/programs/<sha>/. Keep under ~200 lines.
(or open the pre-filled issue directly)
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