cli-fw

A compact dataclass-driven command-line framework extracted from the Pacman and RAG projects.

uv add cli-fw

Example

from dataclasses import dataclass
from cli_fw import Command, arg


@dataclass
class Serve:
    port: int = arg(help="Port to listen on", default=8000)


command = Command("serve", schema=Serve)
parsed = command.execute(["--port", "8080"])

It supports positional and optional arguments, choices, booleans, lists, nested commands, generated help, and typed parse errors.

Commands and subcommands

Define arguments in dataclasses, attach each schema to a Command, then call execute(). A command callback receives the validated dataclass instance. A root command can contain any number of subcommands:

root = Command("project", short="Index and search a project")
root.add_command(Command("index", schema=Index, run=run_index))
root.add_command(Command("search", schema=Search, run=run_search))
result = root.execute()

Run it like python app.py index ./src --workers 8, or add --help at any command level. See the complete runnable subcommand example, including positional values, defaults, boolean flags, callbacks, and diagnostic handling.

Where I use it

This is my internal CLI framework for 42 projects. The latest implementation was extracted from Pacman, a work-in-progress group project in the 42 organization, with behavior checked against RAG Against the Machine. Pacman uses it for the game command and RAG uses it to validate command syntax and produce diagnostics before command execution.

Dependencies

Python 3.10+
typed-errs for Result, Err, and diagnostics

Use and contributions

This is a personal library, but it is not private or locked to my projects. You may use it in general Python work and in 42 projects under the MIT license; just follow the rules that apply to your campus and assignment.

Contributions are welcome: open an issue or send a pull request. I do not care whether a contribution is written by hand, AI-assisted, or generated another way; I care about whether it is correct, tested, understandable, and a good fit. Because this is opinionated personal infrastructure, pull requests are reviewed selectively and are likely to be rejected unless they clearly improve the library without making it harder to maintain.

Development and release

Run mise run check. Every push to master publishes a unique 0.0.<CI run> ZeroVer version through PyPI Trusted Publishing. mise run publish remains available.

Development Status
- 3 - Alpha
Environment
- Console
Programming Language
- Python :: 3 :: Only
Typing
- Typed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

cli_fw-0.0.5.tar.gz (15.5 kB view details)

Uploaded Aug 14, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

cli_fw-0.0.5-py3-none-any.whl (11.0 kB view details)

Uploaded Aug 14, 2026 Python 3

File details

Details for the file cli_fw-0.0.5.tar.gz.

File metadata

Download URL: cli_fw-0.0.5.tar.gz
Upload date: Aug 14, 2026
Size: 15.5 kB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for cli_fw-0.0.5.tar.gz
Algorithm	Hash digest
SHA256	`e7f54eefecd55d2cde4183a571bfc3f677d111647063535aeee3ef4f9ec50279`
MD5	`e7cbf28d49e0f1b19f756e77bc70a945`
BLAKE2b-256	`401afefa350899c8dfe0513a6236b3104bd411327a85805e18039830ebe78862`

See more details on using hashes here.

Provenance

The following attestation bundles were made for cli_fw-0.0.5.tar.gz:

Publisher: release.yml on 0xveya/cli-fw

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: cli_fw-0.0.5.tar.gz
- Subject digest: e7f54eefecd55d2cde4183a571bfc3f677d111647063535aeee3ef4f9ec50279
- Sigstore transparency entry: 2470001949
- Sigstore integration time: Aug 14, 2026
Source repository:
- Permalink: 0xveya/cli-fw@6edd52e7562d11d114fe6384d4a770d59dfd34e9
- Branch / Tag: refs/heads/master
- Owner: https://github.com/0xveya
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: release.yml@6edd52e7562d11d114fe6384d4a770d59dfd34e9
- Trigger Event: push