It names a concrete action ('Run `make fmt`') and its purpose ('check the code format'), but describes only a single action with no additional detail about what this entails or what it covers.

It answers 'what' minimally (run make fmt to check format) but completely lacks a 'when' clause or any explicit trigger guidance, which per the rubric caps completeness at 2, and since the 'what' is also very thin, a score of 1 is appropriate.

The description contains 'make fmt', 'code format' but lacks natural user-facing trigger terms. Users might say 'format code', 'linting', 'style check', 'formatting', none of which are present. The terms used are narrow and technical.

The mention of `make fmt` is somewhat specific to a particular build system command, which provides some distinctiveness, but 'check the code format' is generic enough to overlap with linting, style-checking, or other formatting skills.

The skill is lean and efficient. Every line serves a purpose—command, what it checks, and how to fix issues. No unnecessary explanations of what Rust formatting is or how make works.

Provides a concrete, copy-paste ready command with the full path, lists exactly what is checked, and gives specific fix instructions (lowercase first character, remove trailing punctuation).

Clear sequence: run the command, identify issues from the three check categories, apply specific fixes, and re-run until clean. The feedback loop ('Fix any issues found and re-run until clean') is explicitly stated.

This is a simple, single-purpose skill under 50 lines with no need for external references. The content is well-organized with a clear structure: command, what it checks, how to fix issues.