Conciseness

The body is a lean routing index where every line points to a rule file with a one-line scope note; it assumes Claude's competence and explains nothing Remotion-generic. Only the slightly padded opener ('Use this skills whenever you are dealing with Remotion code to obtain the domain-specific knowledge') could be trimmed, which is too minor to drop from anchor 5's 'every token earns its place'.

Actionability

Per the scoring notes, absence of code is not penalized when guidance is actionable, and it is: explicit directives like 'load the [./rules/subtitles.md] file' for captions and a task-to-file map covering ~30 topics. It is not 5 because all executable substance is one hop away — the body itself contains no code, commands, or inline patterns for even the most common cases.

Workflow Clarity

This is a simple single-purpose router skill (under 50 lines of body, one task), and the single action — consult the matching rule file before writing Remotion code — is unambiguous via the 'When to use' section, three proactively highlighted rules, and a fully described index. No destructive or batch operations, so the validation cap does not apply.

Progressive Disclosure

A textbook hub: a concise overview body with clearly signaled, one-level-deep references, each carrying a descriptive label for discovery. Minor nits (inconsistent './rules/' vs 'rules/' path prefixes; subtitles/ffmpeg/audio-visualization appearing only in prose sections rather than the index) do not impede navigation, so it holds anchor 5 rather than 4.

Specificity

The description names the domain ('Best practices for Remotion - Video creation in React') but lists no concrete actions — 'Best practices' is generic filler. It is not a 1 because the domain itself (Remotion, React video) is specifically named rather than purely abstract.

Completeness

There is no 'Use when...' clause or equivalent trigger guidance, and the 'what' is itself vague ('Best practices' describes no capability). This fits anchor 2 ('Has a vague what and no when') and cannot be 3 because the what is not concrete or clear.

Trigger Term Quality

'Remotion', 'video', and 'React' are terms users would naturally say, but common variations and synonyms ('video rendering', 'programmatic video', 'motion graphics', 'animate') are missing. This matches 'Some relevant keywords but missing common variations or synonyms' rather than 4's 'a few natural terms missing' — coverage is only the bare domain name.

Distinctiveness Conflict Risk

'Remotion' names a specific library, giving a clear niche with minimal conflict risk, but the trailing 'Video creation in React' is broad and could overlap with generic React video/multimedia skills. It is mostly distinct with minor overlap risk (anchor 4), not 5, because no trigger phrases sharply delineate it.