Does it support dune project integration?

Absolutely. The skill provides the necessary dune stanzas and project organisation required to build, library-wrap, and test your OCaml executables.

What library does this skill use for OCaml CLIs?

This skill specifically uses the Cmdliner library, following the design principles established by Daniel Bünzli for clarity and precision.

Can it help with complex subcommand structures?

Yes, it specialises in designing hierarchical command trees with consistent flags and predictable argument orders across all subcommands.

How does it improve CLI help documentation?

It ensures every term has explicit documentation strings, defaults are clearly stated, and the generated --help output follows Unix-style best practices.

Cmdliner CLI Architect

Name: Cmdliner CLI Architect
Author: avsm

byavsm

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Designs and implements robust, professional command-line interfaces for OCaml projects using the Cmdliner library.

This skill empowers Claude to act as an expert OCaml practitioner, specialising in the Cmdliner library to create semantically clear and predictable command-line tools. It follows Daniel Bünzli’s design principles—such as orthogonality and discoverability—to help developers structure subcommands, define complex terms and combinators, and produce high-quality help documentation. Whether you are bootstrapping a new dune-based project or refactoring existing CLI logic, this skill ensures your tools adhere to Unix-style best practices and precise failure modes.