Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usage of @SpringBootApplication, component annotations (@Controller, @Service, @Repository), bean definition and scoping, configuration classes and @ConfigurationProperties (with @Validated), component scanning, conditional configuration and profiles, constructor injection, @Primary and @Qualifier for multiple beans of the same type, bean minimization, graceful shutdown, virtual threads, Jakarta EE namespace consistency, and scheduled tasks. Part of the skills-for-java project
74
67%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/301-frameworks-spring-boot-core/SKILL.mdQuality
Discovery
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.
This is a strong skill description that clearly defines its scope (Spring Boot 4.0.x), lists extensive specific capabilities, and includes an explicit 'Use when' trigger clause. The comprehensive enumeration of Spring Boot concepts serves as excellent trigger terms for matching. The only minor weakness is that the description is quite long and could potentially be more concise while retaining the same information density.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description lists numerous specific concrete actions and concepts: @SpringBootApplication, component annotations, bean definition and scoping, @ConfigurationProperties with @Validated, constructor injection, @Primary/@Qualifier, bean minimization, graceful shutdown, virtual threads, Jakarta EE namespace consistency, and scheduled tasks. | 3 / 3 |
Completeness | Explicitly answers both 'what' (review, improve, or build Spring Boot 4.0.x applications with a comprehensive list of topics) and 'when' ('Use when you need to review, improve, or build Spring Boot 4.0.x applications'). | 3 / 3 |
Trigger Term Quality | Includes many natural keywords a developer would use: 'Spring Boot 4.0.x', '@SpringBootApplication', '@Controller', '@Service', '@Repository', 'component scanning', 'profiles', 'constructor injection', 'virtual threads', 'Jakarta EE', 'scheduled tasks'. These are terms developers naturally use when working with Spring Boot. | 3 / 3 |
Distinctiveness Conflict Risk | Highly specific to Spring Boot 4.0.x with detailed annotation and feature references that clearly distinguish it from general Java skills or other framework skills. The version specificity (4.0.x) and the enumerated Spring-specific concepts make it very unlikely to conflict with other skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
35%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill body functions primarily as a table of contents pointing to a reference file, with almost no actionable content of its own. The constraints section provides a reasonable compile/verify workflow, but the lack of any concrete code examples, specific patterns, or inline guidance means Claude gains very little from the skill body alone. The content would benefit significantly from at least a few key patterns shown inline.
Suggestions
Add 2-3 concrete, executable code examples inline for the most common patterns (e.g., @SpringBootApplication setup, constructor injection, @ConfigurationProperties with @Validated) so the skill body provides standalone value.
Include a brief good/bad pattern comparison for at least one critical topic (e.g., constructor injection vs field injection) to make the skill immediately actionable without requiring the reference file.
Expand the workflow in the Constraints section into an explicit feedback loop: compile → if fail, fix → recompile → apply changes → verify → if fail, fix → re-verify.
Remove or significantly condense the 'What is covered' bullet list, which largely duplicates the skill description and adds no actionable guidance.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The 'What is covered' bullet list largely repeats the description/frontmatter and doesn't add actionable value. The constraints section is reasonably tight, but the overall content has some redundancy and could be leaner. | 2 / 3 |
Actionability | There are no concrete code examples, no executable commands beyond generic mvnw invocations, and no specific patterns or anti-patterns shown. All substantive guidance is deferred to the reference file, leaving the skill body as a vague table of contents. | 1 / 3 |
Workflow Clarity | The constraints section provides a clear compile-before/verify-after sequence with a blocking condition on failure, which is good. However, there's no explicit feedback loop (fix -> recompile -> retry) and no validation checkpoints for the actual Spring Boot changes themselves. | 2 / 3 |
Progressive Disclosure | There is a single reference link for detailed guidance, which is appropriate one-level-deep disclosure. However, the skill body itself contains almost no substantive quick-start content — it's essentially just a pointer to the reference file with a topic list, offering little standalone value. | 2 / 3 |
Total | 7 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
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Table of Contents
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