Conciseness

The body is lean and assumes Claude's competence: no concepts are explained, every section delivers project-specific facts (file paths, type signatures, commands), and comments in the code template carry non-obvious information ("module-level default state", "defaults are resolved in getValue"). There is negligible padding, so it fits the 'lean and efficient; every token earns its place' anchor rather than anchor 4's 'minor instances of over-explanation'.

Actionability

Guidance is fully executable: a complete `satisfies AnyRemotionOption<boolean>` template with the real import path, exact file targets (`packages/renderer/src/options/<name>.tsx`, `parsed-cli.ts`, `print-help.ts`, `config/index.ts`), exact type signatures (`[myFlagOption.cliFlag]: TypeOfOption<typeof myFlagOption>`), and runnable build/verify commands (`bun run generate-option-docs`, `bun run check-option-docs`). Not below anchor 5 since the common boolean case is copy-paste ready and edge cases (negating flags, non-boolean types, SSR names) are addressed.

Workflow Clarity

The seven numbered steps are clearly sequenced with an explicit verification checkpoint ("Build and verify" with `check-option-docs` and verifying the generated `/docs/options/<id>` page), matching anchor 4. It is not anchor 5 because there is no error-recovery feedback loop — nothing tells Claude what to do when `check-option-docs` or the page verification fails; it is not anchor 3 because validation checkpoints are explicitly present, not merely implicit.

Progressive Disclosure

The single-file body is well organized: numbered sections, inline code kept to one template, a closing "Reference files" list of real codebase paths, and a clearly gated one-level-deep cross-reference ("If the option is consumed by Studio, read ../studio-config-option-lifecycle/SKILL.md completely before wiring it"). It sits between anchors 4 and 5 rather than clearly at 5: the body is ~130 lines (above the under-50-line simple-skill case) and the dense step-6 docs walkthrough across cli/lambda/cloudrun pages is content that could arguably live in a reference file; the sibling-skill path is also unverifiable within this bundle.

Specificity

The description lists multiple specific concrete actions — "creating an AnyRemotionOption", "registering CLI parsing", "wiring config setters", "and updating documentation" — comprehensively covering the workflow. It matches the anchor for comprehensive concrete actions and is not below it since no part of the workflow is left to inference.

Completeness

It explicitly answers both parts: the what ("Add a new Remotion CLI or config option by creating an AnyRemotionOption, registering CLI parsing, wiring config setters, and updating documentation") and the when ("Use when adding or converting command-line flags or Remotion options"). This mirrors the anchor-5 example structure exactly, and anchor 4's looser 'when' does not fit better.

Trigger Term Quality

Natural phrases like "command-line flags", "Remotion options", "CLI", and "config option" cover what a contributor would say when needing this skill. It sits between anchors 4 and 5: good keyword coverage but a few natural synonyms (e.g., "CLI argument", "flag", "setting") are missing, so it is not the comprehensive anchor-5 fit.

Distinctiveness Conflict Risk

"Remotion CLI or config option" plus "AnyRemotionOption" carves out a clear niche with distinct triggers; virtually no other generic skill would fire on these phrases. Only the most minor overlap risk exists with the sibling studio-config-option-lifecycle skill, but the description's trigger (adding/converting flags) distinguishes it.