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@arkhelang

Arkhe (ἀρχή)

An ontology language for AI systems.

Arkhe

An ontology language for AI systems.

AI systems fail in three recurring ways: agents that behave differently on identical inputs, models that assert things that do not exist, and systems that cannot show an auditor why they did what they did. All three are failures of meaning.

Arkhe is a neutral, version-controlled language for declaring what exists in a domain, how it connects, and what may be done to it, by whom, with what trace. One YAML file in a git repo is the authoritative artifact. A compiler turns it into tool contracts, a neutral intermediate form, and from those generates the artifacts AI systems consume. The spec is a contract, never a runtime.

arkhelang.org: overview and, in time, the rendered spec


Repositories

Repo What it is
arkhelang The language: specification, ADRs, golden-file fixtures, and the reference implementation
arkhelang.org The website (Cloudflare Pages)

Packages: PyPI · npm · crates.io arkhelang / arkhe

Status

Early development. v0.1 ships four things: the spec, a validator (arkhe validate), the tool contracts, and one emitter. Design decisions are public as ADRs.

Related

Arkhe's author also authors GATE, an open framework for governed agent runtimes. Interoperability is a goal; exclusivity is not. Arkhe is runtime-neutral and GATE gets no privileged hooks.


License

Apache-2.0. Free forever. No CLA. A personal open-source project by Andrew Stevens.

Pinned Loading

  1. arkhelang arkhelang Public

    The language: specification, ADRs, golden-file fixtures, and the reference implementation.

    Python 2 1

  2. arkhelang.org arkhelang.org Public

    The website (Cloudflare Pages)

    HTML

Repositories

Showing 3 of 3 repositories
  • arkhelang.org Public

    The website (Cloudflare Pages)

    arkhelang/arkhelang.org's past year of commit activity
    HTML 0 0 0 0 Updated Jul 23, 2026
  • arkhelang Public

    The language: specification, ADRs, golden-file fixtures, and the reference implementation.

    arkhelang/arkhelang's past year of commit activity
    Python 2 Apache-2.0 1 0 0 Updated Jul 23, 2026
  • .github Public
    arkhelang/.github's past year of commit activity
    0 0 0 0 Updated Jul 17, 2026

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