The body is lean (~20 lines) with no concept explanations Claude already knows; every line like 'Run these first in sequence:' earns its place, matching the 'lean and efficient' anchor.

It provides concrete executable commands ('yarn prettier', 'yarn linc', '/flow', '/test', '/test www') that are copy-paste ready, matching the 'fully executable' anchor.

The workflow is clearly sequenced (sequential prettier/linc, then parallel subagents) with explicit 'stop if fails' validation checkpoints and a failure-handling feedback loop ('report the issue with suggested fixes'), matching the highest anchor.

This is a single-purpose skill under 50 lines with no external bundle files, and its sections (Instructions, sequential vs parallel steps) are well-organized, which the rubric permits to score 3 without external references.

The description names the React contribution domain and actions ('validate changes before committing', 'check all React contribution requirements') but does not list multiple specific concrete actions, matching the 'names domain and some actions' anchor rather than the vague 1 or multi-action 3.

It explicitly answers both what (validate changes, check contribution requirements) and when via an explicit 'Use when you want to...' clause, matching the highest anchor; it is not a 2 because the trigger is explicit rather than implied.

It includes some natural terms users would say ('validate changes', 'committing', 'React contribution') but misses common variations like 'run tests', 'lint', or 'before push/PR', fitting the 'some relevant keywords but missing common variations' anchor.

'validate changes before committing' is generic enough to overlap with other commit/test-check skills, though 'React contribution requirements' gives it a niche, fitting the 'somewhat specific but could still overlap' anchor rather than a fully distinct 3.