Spring Boot
piomin/claude-ai-spring-boot
Spring Boot 3.x development - REST APIs, JPA, Security, Testing, and Cloud-native patterns.
A skill your agent uses when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events.
Install Spring Modulith
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulith --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .claude/skills/spring-modulith && rm -rf skills-srcUse ~/.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/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .claude/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulithType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulith --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .agents/skills/spring-modulith && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .agents/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulith --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .cursor/skills/spring-modulith && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .cursor/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/rrezartprebreza/spring-boot-skills.git --path skills/spring-boot-3/spring-modulith--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulith --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .gemini/skills/spring-modulith && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .gemini/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulithInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .github/skills/spring-modulith && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .github/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-modulith --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rrezartprebreza/spring-boot-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/spring-boot-3/spring-modulith .opencode/skills/spring-modulith && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "spring-modulith" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-modulith into .opencode/skills/spring-modulith/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-modulith", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
spring-modulith- GitHub stars
- 298
- Token cost
- ~747 tokens
- SKILL.md length
- 316 words
- Files
- 4
- Skills in repo
- 51
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events.
- Verifying a modular Spring Boot monolith with Spring Modulith
- SKILL.md covers Spring Boot 3 baseline, Apply within the existing…, Verify boundaries and Reliable events, plus 2 more sections
- Runs Java scripts from its folder
- Including module APIs
What it does
Spring Modulith is an agent skill from rrezartprebreza/spring-boot-skills. Use when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events. Do not restructure an application into modules for an unrelated endpoint change.
Its SKILL.md is about 750 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files (for example `agents/openai.yaml`).
It sits in Backend & APIs, covering Backend development. It works with Spring Boot. The repository describes itself as: Production-grade Claude Code and Codex skills for Spring Boot developers. The licence is MIT.
When your agent uses it
- Verifying a modular Spring Boot monolith with Spring Modulith
- Including module APIs
- Dependency rules and reliable module events
Example prompts
- “/spring-modulith”
What it can do on your machine
Read from SKILL.md and the folder at commit f0c06a0. 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
Ships script files (Java), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
docs.spring.io
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 Modulith loads about 747 tokens when it runs. Until then it costs about 63 tokens; SKILL.md has 316 words of instructions outside code blocks.
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 rrezartprebreza/spring-boot-skills at commit f0c06a0, republished under its MIT licence (© rrezartprebreza). 316 words, ~747 tokens.
Download SKILL.mdSave it as
.claude/skills/spring-modulith/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- spring-modulith
- description
- Use when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events. Do not restructure an application into modules for an unrelated endpoint change.
Spring Modulith
Spring Boot 3 baseline
Use the Spring Modulith 1.4 line with Boot 3.5; check the official compatibility matrix for older Boot 3 minors.
Apply within the existing architecture
Inspect the application root package, module boundaries and current dependency graph. Use direct subpackages as modules; keep their API at the module root and implementation in internal subpackages. Expose a named interface only for an intentional shared API. Use allowedDependencies when the architecture needs explicit dependency constraints. Avoid creating a generic shared module that every feature depends on.
Verify boundaries
Add spring-modulith-starter-test with test scope and run ApplicationModules.of(Application.class).verify() in CI. It checks cycles and access to module internals. Add ApplicationModuleTest for behavior confined to a module. A passing structure check does not prove transactional or delivery correctness.
See good module verification and bad cross-module dependency.
Reliable events
Publish immutable event payloads containing IDs and necessary facts, not managed JPA entities. Use ApplicationModuleListener for asynchronous transactional listeners when that timing fits. For delivery that must survive a process crash, configure a persistent event publication registry using the chosen JDBC/JPA starter and manage its schema through migrations. An in-memory registry and a plain after-commit callback are not durable delivery.
Make handlers idempotent: a crash after the business effect but before recording completion can cause redelivery. Define retry/republication and retention explicitly, and test failed listeners and application restarts. For external brokers, use supported event externalization with persistent publication tracking; do not promise end-to-end exactly-once processing.
Gotchas
- Agent imports a repository from another module's internal package - call its public API or consume an event.
- Agent adds Modulith to a simple unrelated task - preserve the requested scope.
- Agent assumes ApplicationModuleListener alone guarantees durability - configure persistent publication tracking.
- Agent publishes an entity with lazy associations - publish an immutable event contract.
- Agent tests only the happy path - verify cycles, module access and event redelivery.
Official sources
© rrezartprebreza, 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 3 other files in skills/spring-boot-3/spring-modulith of rrezartprebreza/spring-boot-skills.
- SKILL.md
- agents/openai.yaml
- examples/bad-module-dependency.java
- examples/good-module-test.java
Open the folder on GitHubat commit f0c06a0
Compare with similar skills
Spring Modulith 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Spring Modulith this skillrrezartprebreza/spring-boot-skills | 298 | — | ~747 | Automated safety check: Pass | MIT | |
| Spring Bootpiomin/claude-ai-spring-boot | 1.3k | — | ~2k | Automated safety check: Pass | Apache-2.0 | |
| Dr Jskilljdubois/dr-jskill | 342 | — | ~4.6k | Automated safety check: Notes | Apache-2.0 | |
| WxJava Integration Guidebinarywang/WxJava | 33k | — | ~123 | Automated safety check: Pass | Apache-2.0 | |
| Grails Developer Guideapache/grails-core | 2.9k | — | ~4.9k | Automated safety check: Pass | Apache-2.0 | |
| Flycms Devsunkaifei/FlyCms | 656 | — | ~827 | Automated safety check: Pass | MIT |
Similar skills
Dr Jskill
jdubois/dr-jskill
Creates Java + Spring Boot projects: Web applications, full-stack apps with Vue.js or Angular or React or vanilla JS, PostgreSQL, REST APIs, and Docker.
WxJava Integration Guide
binarywang/WxJava
Plans a WxJava setup for Java, Spring Boot or Solon projects that call WeChat services, from module and BOM choice to config and a minimal working call.
Grails Developer Guide
apache/grails-core
Guides building Grails web applications and REST APIs with GORM, controllers, services, views, plugins and Spock and Geb testing.
Flycms Dev
sunkaifei/FlyCms
FlyCms 项目（backend/ Spring Boot 4.1.1 + frontend/ vue-vben-admin v5）的架构地图与开发规范总纲。凡在本仓库做任何开发——写后端接口、新增/修改模块、管理页面、数据库变更、修 bug、重构——都要先加载本 skill 再动手，即使用户只说"改一下""加个功能"；前端登录/菜单/权限专项另见…
Intelliconnect Service Style
ruanrongman/IntelliConnect
Create or update IntelliConnect Spring Boot service/serviceimpl code in this repository style.
More from rrezartprebreza/spring-boot-skills
All 51 skills in this repoAI Observability
rrezartprebreza/spring-boot-skills
A skill your agent uses when adding Spring AI-specific model observations, token usage, latency, externally configured cost attribution, advisor telemetry, or protected prompt and completion logging.
API Versioning
rrezartprebreza/spring-boot-skills
A skill your agent uses when versioning Spring MVC or WebFlux APIs in Spring Boot 3 / Spring Framework 6.
API Versioning
rrezartprebreza/spring-boot-skills
A skill your agent uses when versioning Spring MVC or WebFlux APIs in Spring Boot 4 / Spring Framework 7.
Container Native Deployment
rrezartprebreza/spring-boot-skills
A skill your agent uses when packaging a Spring Boot 3 application as an OCI image or GraalVM native executable.
Container Native Deployment
rrezartprebreza/spring-boot-skills
A skill your agent uses when packaging Spring Boot 4 as an OCI image, JVM container, AOT application, or GraalVM native executable.
Domain Driven Design
rrezartprebreza/spring-boot-skills
A skill your agent uses when evolving aggregate invariants, value objects or domain events in an existing DDD-style Spring Boot 3 application, or when DDD is explicitly requested.
Related
Works with
Categories
Questions about Spring Modulith
What does Spring Modulith do?
A skill your agent uses when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events. Spring Modulith is an agent skill from rrezartprebreza/spring-boot-skills. Use when organizing or verifying a modular Spring Boot monolith with Spring Modulith, including module APIs, dependency rules and reliable module events.
When should I use Spring Modulith?
Spring Modulith fits situations like: verifying a modular Spring Boot monolith with Spring Modulith; including module APIs; dependency rules and reliable module events.
How do I install Spring Modulith in Claude Code?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a claude-code`. Or copy the skill folder (skills/spring-boot-3/spring-modulith in rrezartprebreza/spring-boot-skills) into .claude/skills/spring-modulith in your project. Claude Code loads it when a task matches its description.
How do I install Spring Modulith in Codex?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill spring-modulith -a codex`. Or copy the skill folder (skills/spring-boot-3/spring-modulith in rrezartprebreza/spring-boot-skills) into .agents/skills/spring-modulith in your project. Codex loads it when a task matches its description.
Can I use Spring Modulith 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 rrezartprebreza/spring-boot-skills --skill spring-modulith -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-modulith, .gemini/skills/spring-modulith, .github/skills/spring-modulith and .opencode/skills/spring-modulith in your project.
What does Spring Modulith need to run?
Going by SKILL.md and its folder, Spring Modulith needs Java for the scripts in its folder.
Does Spring Modulith access the network?
SKILL.md names 1 domain. As links in the text: docs.spring.io. This is read from the text; nothing was executed.
Is Spring Modulith 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 Modulith use?
Spring Modulith 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 Modulith use?
About 747 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Spring Modulith?
Skills that share tags, products or a category with Spring Modulith: Spring Boot (piomin/claude-ai-spring-boot, 1.3k stars), Dr Jskill (jdubois/dr-jskill, 342 stars), WxJava Integration Guide (binarywang/WxJava, 33k stars) and Grails Developer Guide (apache/grails-core, 2.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Spring Modulith?
rrezartprebreza (a GitHub user) maintains it in rrezartprebreza/spring-boot-skills, which has 298 GitHub stars. The repository holds 51 skills in this directory. The repository was last updated on September 21, 2026.
Source: rrezartprebreza/spring-boot-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.