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java-pro

Master Java 21+ with modern features like virtual threads, pattern matching, and Spring Boot 3.x. Expert in the latest Java ecosystem including GraalVM, Project Loom, and cloud-native patterns. Use PROACTIVELY for Java development, microservices architecture, or performance optimization.

49

Quality

53%

Does it follow best practices?

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SecuritybySnyk

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tessl review fix ./skills/java-pro/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

7%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is a padded persona/marketing outline rather than executable skill guidance: it lists well-known Java features across redundant sections, provides no code or concrete commands, and lacks a real workflow with validation. Progressive disclosure is weak because everything is inline with no reference files.

Suggestions

Replace the overlapping capability/knowledge/behavioral bullet lists with concise, decision-oriented guidance and move exhaustive feature lists into reference files referenced one level deep.

Add concrete, executable examples (e.g., a virtual-thread code snippet, a Maven/Gradle native-image command) instead of abstract descriptions like 'Migration strategies from platform threads to virtual threads'.

Define a real sequenced workflow with explicit validation checkpoints for risky operations (e.g., migration, native-image builds) rather than the generic 8-step 'Response Approach' of intentions.

DimensionReasoningScore

Conciseness

~170 lines of bullet lists restate Java/Spring knowledge Claude already holds, with overlapping Capabilities, Behavioral Traits, and Knowledge Base sections padding the same themes (virtual threads, Spring, GraalVM).

1 / 3

Actionability

Contains no executable code, commands, or concrete examples; bullets like 'Migration strategies from platform threads to virtual threads' describe rather than instruct.

1 / 3

Workflow Clarity

The 'Response Approach' lists high-level intentions ('Analyze requirements', 'Design scalable architectures') with no real operation sequencing and no validation checkpoints; the Instructions section is generic boilerplate.

1 / 3

Progressive Disclosure

Has section headers giving some structure, but the large capability/knowledge lists are inline monolithic blocks that should be split into reference files; no bundle files or signaled references exist.

2 / 3

Total

5

/

12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is strong: it is third-person, names many concrete capabilities, and includes an explicit 'Use PROACTIVELY for...' trigger clause covering both what and when. It is concise and clearly distinct as a modern-Java skill.

DimensionReasoningScore

Specificity

Lists multiple specific concrete capabilities (virtual threads, pattern matching, Spring Boot 3.x, GraalVM, Project Loom) and concrete use domains (Java development, microservices, performance optimization).

3 / 3

Completeness

Answers 'what' (master Java 21+ with listed features) and has an explicit 'when' trigger ('Use PROACTIVELY for Java development, microservices architecture, or performance optimization').

3 / 3

Trigger Term Quality

Includes natural terms users actually say for Java work ('Java development', 'Spring Boot', 'virtual threads', 'microservices architecture', 'performance optimization').

3 / 3

Distinctiveness Conflict Risk

The modern Java 21+ / Spring Boot 3.x / GraalVM framing carves a clear niche unlikely to trigger for non-Java skills, even if 'Java development' alone is somewhat broad.

3 / 3

Total

12

/

12

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
rmyndharis/antigravity-skills
Reviewed

Table of Contents

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