Conciseness

The body is efficient: no explanations of concepts Claude already knows, dense tables for architecture and regeneration safety, and lean command blocks. The only trimmable redundancy is the 'Key Patterns' section, which re-states three lines already shown in the full register() example ('let client = super::sdk::client(ctx);', the block_on pattern, and the use statement) — minor instances of duplication that could be trimmed, matching the score-4 anchor rather than the mostly-efficient-but-tightenable score-3 anchor.

Actionability

The guidance is fully executable: a complete copy-paste-ready register() handler with exact file path (cli/inline-enum-type-name-override/custom.rs), concrete build/run commands ('cargo build', 'inline-enum-type-name-override load', RUST_LOG=debug), and a table naming the actual SDK sub-client (client.reporting). It covers the common case end to end, matching the score-5 anchor rather than the minor-gaps score-4 anchor.

Workflow Clarity

The sequence is clear: edit custom.rs (protected by .fernignore) → cargo build → run the command → after fern generate, verify custom.rs survived and update it if the SDK surface changed. Build-then-run and the RUST_LOG=debug debugging hint serve as checkpoints, matching the score-4 anchor with most checkpoints present. It falls short of 5 because there is no explicit error-recovery loop (e.g. what to do when the build fails or the SDK surface changed); the operations are not destructive or batch, so the score-3 cap does not apply.

Progressive Disclosure

There are no bundle files (no references/, scripts/, or assets/), and the body is a single well-organized document with clear sections (Overview, Architecture, Adding a Custom Command, Regeneration Safety, Build & Test) and no buried or nested references. This matches the score-4 anchor of good structure with content appropriately placed; it does not reach 5 both because the body exceeds the under-50-lines simple-skill exception and because content like the SDK client table and regeneration matrix could live in a reference file if the skill grows.

Specificity

The description names the domain ('custom commands for the inline-enum-type-name-override CLI') and one concrete action ('author... using the co-generated SDK'), which matches the anchor for naming a domain with 1-2 concrete actions but not comprehensive coverage. It does not list several specific actions like the score-4/5 anchors, and it is not vague enough to fall to 2.

Completeness

The 'what' is clear ('How to author custom commands for the inline-enum-type-name-override CLI using the co-generated SDK'), but there is no 'Use when...' clause or equivalent explicit trigger guidance, so completeness is capped at 3 per the judging guidelines. It is above 2 because the 'what' is concrete, and below 4 because the 'when' is entirely absent rather than merely imprecise.

Trigger Term Quality

'author custom commands', 'CLI', and 'SDK' are relevant keywords, but the description leans on niche jargon ('co-generated SDK', the specific CLI name) and misses natural variations users would say like 'add a command', 'extend the CLI', or 'custom subcommand'. Some relevant keywords with missing synonyms matches the score-3 anchor; not jargon-only enough for 2, not comprehensive enough for 4.

Distinctiveness Conflict Risk

The description is anchored to a highly specific CLI name ('inline-enum-type-name-override'), giving it a clear niche with distinct triggers and minimal risk of firing for the wrong skill. It is clearly more distinct than the score-4 anchor ('minor overlap risk with closely related skills').