Conciseness

The body is lean and free of explanations of concepts Claude already knows, but the 'Key Patterns' section re-quotes 'super::sdk::client(ctx)' and 'super::sdk::block_on(...)' code already shown verbatim in the register() example, and 'zero configuration required' is mildly promotional. This matches anchor 4 ('efficient; minor instances of over-explanation that could be trimmed') rather than 5 because of that redundancy.

Actionability

The register() example is a complete, copy-paste-ready command registration with a fully wired handler ('let client = super::sdk::client(ctx); ... super::sdk::block_on(client.contacts.get(id))?'), followed by executable build and test commands ('cargo build', 'no-content-response get <id>') and a debug invocation ('RUST_LOG=debug ...'). This matches anchor 5 ('fully executable; copy-paste ready code or commands; specific examples cover the common cases').

Workflow Clarity

There is a clear sequence (edit cli/no-content-response/custom.rs → register the command → 'cargo build' → run 'no-content-response get <id>', with RUST_LOG=debug for troubleshooting), and the regeneration-safety table explains what happens after 'fern generate'. However, '### 2. Available SDK Clients' and '### 3. Key Patterns' are reference material presented as numbered steps, and there is no guidance on recovering from build or runtime errors. This fits anchor 4 ('clear sequence with most checkpoints present; minor validation gaps') — above 3 because build/test checkpoints exist, below 5 because error-recovery feedback loops are absent.

Progressive Disclosure

The body is a single well-sectioned file with no bundle files and no dangling references — all paths mentioned (custom.rs, sdk.rs, main.rs, the SDK crates) refer to the user's codebase and align with the architecture diagram. It sits just over the ~50-line simple-skill threshold with minor organization gaps (the redundant 'Key Patterns' section), matching anchor 4 ('good structure; most content is appropriately placed; minor organization gaps') rather than 5.

Specificity

The description names the domain and one concrete action ("author custom commands for the no-content-response CLI using the co-generated SDK"), but does not enumerate the actual capabilities (registering commands, building, regeneration safety). It matches anchor 3 ('names domain and 1-2 concrete actions, but not comprehensive') — above anchor 2 because the action is concrete rather than generic, below anchor 4 because only one action verb is given.

Completeness

There is a clear 'what' ("author custom commands for the no-content-response CLI") but the 'when' is entirely missing — no "Use when..." clause or equivalent trigger guidance, which caps completeness at 3 per the judging guidelines. Not 4 because 'when' is not even weakly implied; not 2 because the 'what' is specific and complete.

Trigger Term Quality

Terms like "custom commands", "CLI", and "SDK" are relevant, but the phrasing is spec-oriented ("co-generated SDK") rather than natural user language, and there are no synonyms or variations (e.g., "add a command", "extend the CLI"). This matches anchor 3 ('some relevant keywords but missing common variations or synonyms').

Distinctiveness Conflict Risk

"the no-content-response CLI" names a highly specific tool, giving this skill a clear niche with distinct triggers and minimal conflict risk with other skills. It squarely matches anchor 5.