Reference fixture for dart_skills_lint. Demonstrates a SKILL.md that passes every default rule: hyphen-lowercase name matching the parent directory, a properly sized description, and no other frontmatter fields that would trigger the disallowed-field check.
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/flutter/skills/main/tool/dart_skills_lint/example/valid/SKILL.mdRegistry
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