The body repeats the description's trigger list in 'When to use this skill', restates 'consultative, question-driven' three times, and the 'What is covered in this Skill?' bullets overlap the per-family descriptions. It assumes Claude's competence (no basic-concept padding) but could be tightened. Not a 3 because of the duplicated triggers and repeated consultative framing; not a 1 because it avoids explaining concepts Claude already knows.

It gives concrete executable guidance: the `./mvnw validate` / `mvn validate` command, a structured question flow with explicit options, format spec ('Use dot notation (e.g., com.example.myproject)'), an example, and explicit reference-to-selection mapping. Not a 2 because the guidance is concrete and copy-paste-ready rather than pseudocode or vague direction.

Four numbered steps with an explicit validation checkpoint and feedback loop in step 1 ('Run `./mvnw validate`... stop if validation fails' and 'If validation fails, stop and ask the user to fix issues—do not proceed until resolved'). Not a 2 because validation steps and the retry/stop loop are explicit rather than implicit or missing.

The body is a concise overview plus the interactive question flow, with XML details correctly split into three real one-level-deep references (jspecify, vavr, archunit — verified to exist) signaled via markdown links in both the workflow and a Reference section. Not a 2 because content is appropriately separated and clearly navigated rather than inlined or nested.

It lists multiple concrete additions — 'nullness annotations (JSpecify), static analysis (Error Prone + NullAway), functional programming (VAVR), or architecture testing (ArchUnit)' under the concrete action of adding/evaluating Maven dependencies. Not a 2 because it names several distinct concrete capabilities rather than only a domain and a few actions.

It answers both what ('add or evaluate Maven dependencies that improve code quality...') and when, with an explicit 'Use when...' clause plus 'This should trigger for requests such as...'. Not a 2 because explicit trigger guidance is present, so it is not capped.

It gives natural phrasings a user would say — 'Add Maven dependencies; Add JSpecify nullness dependencies; Add Error Prone NullAway dependencies; Add VAVR functional dependencies; Add ArchUnit architecture testing dependencies'. Good coverage of common variations; not a 2 because it supplies explicit natural-language triggers.

It targets a clear niche — code-quality Maven dependencies for the named JSpecify/Error Prone/NullAway/VAVR/ArchUnit tooling — with distinct triggers unlikely to fire for unrelated skills. Not a 2 because the named libraries make it specific rather than a generic 'document/code files' skill.