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Agent skill

Spring Boot Best Practices

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Apply core coding standards, dependency injection, and configuration for Spring Boot 3.

MITAuto-check passedBackend & APIs

Install Spring Boot Best Practices

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill spring-boot-best-practices -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard spring-boot-best-practices --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/spring-boot/spring-boot-best-practices .claude/skills/spring-boot-best-practices && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
spring-boot-best-practices
GitHub stars
572
Token cost
~598 tokens
SKILL.md length
200 words
Files
3 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Apply core coding standards, dependency injection, and configuration for Spring Boot 3.

  • Spring Boot application structure and DI/configuration
  • SKILL.md covers Priority: P0 (CRITICAL), Implementation Guidelines, Anti-Patterns and References
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Defer Spring Security hardening and test-specific setup to their focused skills

What it does

Spring Boot Best Practices is an agent skill from HoangNguyen0403/agent-skills-standard. Apply core coding standards, dependency injection, and configuration for Spring Boot 3. Use for Spring Boot application structure and DI/configuration; defer Spring Security hardening and test-specific setup to their focused skills.

Its SKILL.md is about 600 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/implementation.md`).

It sits in Backend & APIs, covering Backend development and Design patterns. It works with Spring Boot. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Spring Boot application structure and DI/configuration
  • Defer Spring Security hardening and test-specific setup to their focused skills

Example prompts

  • “/spring-boot-best-practices”

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Spring Boot Best Practices loads about 598 tokens when it runs, and up to ~885 if it reads all its reference files. Until then it costs about 65 tokens; SKILL.md has 200 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~65
When it runs · the whole SKILL.md, loaded when a task matches
~598
With references · SKILL.md plus every file in references/, read only if the agent opens them
~885

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 200 words, ~598 tokens.

Download SKILL.mdSave it as .claude/skills/spring-boot-best-practices/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
spring-boot-best-practices
description
Apply core coding standards, dependency injection, and configuration for Spring Boot 3. Use for Spring Boot application structure and DI/configuration; defer Spring Security hardening and test-specific setup to their focused skills.

Spring Boot Best Practices

Priority: P0 (CRITICAL)

Implementation Guidelines

Dependency Injection (DI)
  • Constructor Injection: ALWAYS use Constructor Injection for immutability. Use @RequiredArgsConstructor (Lombok) to reduce boilerplate. Mark all dependencies as final.
  • Avoid @Autowired: NEVER use field injection. It prevents unit testing without Spring context and hides dependencies.
Configuration & Data
  • Type-Safe Config: Use @ConfigurationProperties with Records (Java 17+) instead of @Value. Use Spring profile-specific files (e.g., application-dev.yml, application-prod.yml) and set active profile via SPRING_PROFILES_ACTIVE. Never hardcode secret values in properties files.
  • Validation: Combine with @Validated and Jakarta Bean Validation (@NotNull, @NotEmpty) to fail fast at startup. Use application.yaml for structured configuration.
  • DTOs: Use records as immutable DTOs to reduce boilerplate and ensure thread safety. Handle empty values with Optional to avoid NullPointerException.
Observability & Quality
  • Error Handling: Implement @ControllerAdvice and ProblemDetails (RFC 7807) for standardized error responses.
  • Logging: Use SLF4J with @Slf4j. Implement Structured Logging by logging arguments (log.info("id: {}", id)).
  • Tooling: Mandate Spotless or Checkstyle for code formatting. Use sdkman to manage JDK 21+ versions.

Anti-Patterns

  • No @Autowired on fields: Use constructor injection via @RequiredArgsConstructor.
  • No Setters on dependencies: Declare all injected fields as final.
  • No context.getBean(): Inject dependencies via constructor DI.
  • No log-and-swallow: Rethrow or handle exceptions explicitly.

References

© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/spring-boot/spring-boot-best-practices of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/implementation.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

Spring Boot Best Practices next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Spring Boot Best Practices compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Spring Boot Best Practices this skillHoangNguyen0403/agent-skills-standard572—~598Automated safety check: PassMIT
Langchain4j Spring Boot Integrationgiuseppe-trisciuoglio/developer-kit357—~2.3kAutomated safety check: NotesMIT
Spring Boot Dependency Injectiongiuseppe-trisciuoglio/developer-kit357—~1.7kAutomated safety check: NotesMIT
Java Rulessoftspark/ai-toolkit179—~3.1kAutomated safety check: PassApache-2.0
Clean Architecturegiuseppe-trisciuoglio/developer-kit357—~4kAutomated safety check: NotesMIT
Node Backend Development Guidelinesdiet103/claude-code-infrastructure-showcase10k2 repos~2kAutomated safety check: PassMIT

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Works with

Categories

Questions about Spring Boot Best Practices

What does Spring Boot Best Practices do?

Apply core coding standards, dependency injection, and configuration for Spring Boot 3. Spring Boot Best Practices is an agent skill from HoangNguyen0403/agent-skills-standard. Apply core coding standards, dependency injection, and configuration for Spring Boot 3.

When should I use Spring Boot Best Practices?

Spring Boot Best Practices fits situations like: spring Boot application structure and DI/configuration; defer Spring Security hardening and test-specific setup to their focused skills.

How do I install Spring Boot Best Practices in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill spring-boot-best-practices -a claude-code`. Or copy the skill folder (skills/spring-boot/spring-boot-best-practices in HoangNguyen0403/agent-skills-standard) into .claude/skills/spring-boot-best-practices in your project. Claude Code loads it when a task matches its description.

How do I install Spring Boot Best Practices in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill spring-boot-best-practices -a codex`. Or copy the skill folder (skills/spring-boot/spring-boot-best-practices in HoangNguyen0403/agent-skills-standard) into .agents/skills/spring-boot-best-practices in your project. Codex loads it when a task matches its description.

Can I use Spring Boot Best Practices in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill spring-boot-best-practices -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/spring-boot-best-practices, .gemini/skills/spring-boot-best-practices, .github/skills/spring-boot-best-practices and .opencode/skills/spring-boot-best-practices in your project.

What does Spring Boot Best Practices need to run?

SKILL.md names no scripts, command-line tools or credentials: Spring Boot Best Practices is instructions for the agent only.

Does Spring Boot Best Practices access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Spring Boot Best Practices safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Spring Boot Best Practices use?

Spring Boot Best Practices is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Spring Boot Best Practices use?

About 598 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 287 tokens, read only when the agent opens those files.

What are the alternatives to Spring Boot Best Practices?

Skills that share tags, products or a category with Spring Boot Best Practices: Langchain4j Spring Boot Integration (giuseppe-trisciuoglio/developer-kit, 357 stars), Spring Boot Dependency Injection (giuseppe-trisciuoglio/developer-kit, 357 stars), Java Rules (softspark/ai-toolkit, 179 stars) and Clean Architecture (giuseppe-trisciuoglio/developer-kit, 357 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Spring Boot Best Practices?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.