fittings-pkg-name-check

Installation
SKILL.md

Registry package name validator

pkg.name-check on https://fittings.sh. One endpoint, deterministic compute.

Checks a proposed package name against a registry’s own naming rules (npm scoping and URL-safety, PEP 503 normalization for PyPI, cargo’s crate name grammar) and returns the normalized form the registry compares by.

The call

GET https://fittings.sh/v1/pkg/name-check
Field Type Required Notes
name string yes Proposed package name, at most 300 characters
registry string no One of npm, pypi, crates, default npm

Example input:

Installs
15
First Seen
Aug 16, 2026