Conciseness

Sections like '## Optional Usage' and '## Streams Best Practices' deliver short code blocks with one-line comments and no padded prose — every section adds project-specific convention rather than filler. Matches anchor 4 ('efficient; minor instances of over-explanation'), not 5, because a few snippets re-teach basics Claude already knows (e.g. '✅ Classes/Records: PascalCase', '✅ Constants: UPPER_SNAKE_CASE') that could be trimmed.

Actionability

Quotes: 'return market.map(MarketResponse::from).orElseThrow(() -> new EntityNotFoundException("Market not found"));' and 'throw new MarketNotFoundException(slug);' — concrete, idiomatic patterns for most sections. Matches anchor 4 ('mostly executable guidance; concrete code with minor gaps'), not 5, because some snippets are stubs rather than copy-paste ready ('public class MarketService {}', 'indexById(Collection<T> items) { ... }').

Workflow Clarity

This is a single-purpose standards skill with no multi-step process and no destructive or batch operations, so no validation loop is required; the '## When to Activate' section makes the single task unambiguous. It scores 4 rather than 5 because at ~140 lines it exceeds the under-50-lines simple-skill exception, and sections like 'Code Smells to Avoid' give direction without showing how to apply the fix ('use DTO/builders' shows no builder example).

Progressive Disclosure

The body is a self-contained ~3.8KB document with 12 clearly headed sections (Naming, Immutability, Optional Usage, ...) and no nested or broken references (no references/, scripts/, or assets/ files exist, and none are cited). Matches anchor 4 ('good structure; most content appropriately placed; minor organization gaps'), not 5, because at over 50 lines with several deep-dive topics (Optional, streams, exceptions), some detail could be split into one-level-deep reference files.

Specificity

Quotes: "naming, immutability, Optional usage, streams, exceptions, generics, and project layout" — seven concrete topic areas named after a clear domain ("Java coding standards for Spring Boot services"). Matches anchor 4 ('lists several specific actions; minor gaps') rather than 5 because it enumerates topics rather than comprehensive actions and omits areas the body covers (logging, testing, formatting).

Completeness

The 'what' is clear ("Java coding standards for Spring Boot services: naming, immutability, Optional usage...") but there is no 'Use when...' clause or equivalent explicit trigger guidance anywhere in the description. Per the rubric guideline, a missing 'Use when' clause caps completeness at 3; not 4 because 'when' is entirely absent, not merely implicit.

Trigger Term Quality

Quotes: "Java coding standards", "Spring Boot", "Optional usage", "streams", "naming", "exceptions" — natural phrases users would say when needing this skill. Not 3 (coverage is good, not just 'some relevant keywords') and not 5 because common variations like "code review", "Java conventions", "code style", or ".java" are missing.

Distinctiveness Conflict Risk

Quotes: "Java coding standards for Spring Boot services" — a clear niche (Java + Spring Boot + enumerated topics) that is unlikely to trigger for non-Java or non-standards skills. Matches anchor 4 ('mostly distinct; minor overlap risk'), with only slight overlap risk against a generic Java style or general code-review skill; not 5 because no explicit trigger phrases further separate it.