Conciseness

The body is dense with model-specific empirical knowledge Claude cannot know ("The `fast` variant trades some camera/motion fidelity", "2.5-second-per-shot rhythm appears optimal", "do not route slow-mo… to `fast`") and wastes no tokens explaining known concepts. It is not 5 because there is trimming opportunity: the 'Legacy 8-part template' section, repeated identity-lock guidance (the anchor phrases appear in both the reference-to-video example and the bullet list), and the long copy-verbatim opener templates overlap in intent.

Actionability

Everything is executable: exact model IDs ("bytedance/seedance-2.0/text-to-video" etc.), copy-paste Python for both the selector and direct call with every parameter filled, verbatim prompt templates ("Montage, multi-shot Hollywood action…"), a parameter table with concrete values ("`duration`: `5`–`8` for hero shots"), and a pitfalls table with reasons. This matches 'Fully executable; copy-paste ready… specific examples cover the common cases'.

Workflow Clarity

The 'Iteration strategy' gives a clear numbered sequence (block out shape → lock the seed → upgrade to standard → extend and add shots → keep a per-clip README), the 'Verification checklist for every Seedance shot' provides explicit checkpoints, and the 'Anti-drift fallback' plus 'If face morphs… drop to a shorter duration, tighten the identity-lock language' provide feedback loops for error recovery — the top anchor. Not below 5 since the generation workflow is not destructive and validation/checklist steps are explicit.

Progressive Disclosure

The body is ~280 lines in a single file with no references/, scripts/, or assets/ bundles at all — everything is inline under good section headers. Content that clearly belongs in separate reference files (the provider surfaces matrix, the full Higgsfield prompt methodology with its opener templates, the legacy template, and the 11-link Sources list) is inlined in SKILL.md, matching 'Some structure but… content that should be separate is inline'. Not 4 because there are no well-signaled external references at all, and the simple-skill exception (<50 lines) does not apply.

Specificity

The description lists multiple concrete actions with concrete limits: "Generate cinematic clips", "native synchronized audio (speech, SFX, ambience) in a single pass", "multi-shot cuts inside one generation", "lip-sync from quoted dialogue", "reference-conditioned generation with up to 9 images + 3 video clips + 3 audio clips", "consistent character identity across shots". This matches the anchor 'Lists multiple specific concrete actions; comprehensive coverage' exactly; it is not level 4 because there are no minor gaps — each capability is named with its concrete bound.

Completeness

Both 'what' ("Generate cinematic clips with ByteDance Seedance 2.0 — the preferred premium video model in OpenMontage") and 'when' (an explicit "Use when: (1)…(7)" list of concrete triggers) are clearly and explicitly answered, matching the top anchor verbatim in structure.

Trigger Term Quality

Natural user phrasings are covered comprehensively with synonyms: "trailers, teasers, hype edits, or premium cinematic clips", "synchronized audio", "multi-shot cuts", "director-level camera control", "lip-sync", "character identity". These are the phrases a user would naturally say when needing this skill; not level 4 because no common natural term for the cinematic-video niche is missing.

Distinctiveness Conflict Risk

The niche is well differentiated by distinctive triggers ("native synchronized audio", "lip-sync from quoted dialogue", "up to 9 images + 3 video clips + 3 audio clips") that few other skills would claim, but the headline "Generate cinematic clips" and trailer/teaser triggers overlap with any sibling video-generation skill (Veo/Sora/Kling-style skills), which is 'minor overlap risk with closely related skills' — anchor 4, not 5.