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 preparing a Spring Boot 3 application for Boot 4, upgrading to Boot 3.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration.
Install Spring Boot Migration
$ npx skills add rrezartprebreza/spring-boot-skills --skill spring-boot-migration -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-boot-migration --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-boot-migration .claude/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .claude/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migrationType 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-boot-migration -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-boot-migration --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-boot-migration .agents/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .agents/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migration -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-boot-migration --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-boot-migration .cursor/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .cursor/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migration--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-boot-migration -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills spring-boot-migration --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-boot-migration .gemini/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .gemini/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migrationInstalls 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-boot-migration -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-boot-migration .github/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .github/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migration -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-boot-migration --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-boot-migration .opencode/skills/spring-boot-migration && 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-boot-migration" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/spring-boot-migration into .opencode/skills/spring-boot-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-migration", 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-boot-migration- GitHub stars
- 298
- Token cost
- ~672 tokens
- SKILL.md length
- 317 words
- Files
- 4
- Skills in repo
- 51
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when preparing a Spring Boot 3 application for Boot 4, upgrading to Boot 3.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration.
- Works in 5 steps: Upgrade to the latest Boot 3.5… → Run unit, slice, integration, startup,… → Remove Boot 3 deprecations and record… → …
- Preparing a Spring Boot 3 application for Boot 4
- SKILL.md covers Establish the baseline, Prepare for Boot 4, Migrate dependencies… and Verify the result, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Spring Boot Migration is an agent skill from rrezartprebreza/spring-boot-skills. Use when preparing a Spring Boot 3 application for Boot 4, upgrading to Boot 3.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration.
Its SKILL.md is about 670 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files (for example `agents/openai.yaml`, `examples/bad-migration-plan.md` and `examples/good-migration-plan.md`).
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
- Preparing a Spring Boot 3 application for Boot 4
- Upgrading to Boot 3.5 first
- Removing deprecated APIs
- Auditing dependencies
Example prompts
- “/spring-boot-migration”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Upgrade to the latest Boot 3.5 maintenance release.
- Run unit, slice, integration, startup, and migration tests before changing the major version.
- Remove Boot 3 deprecations and record all explicitly versioned dependencies.
- Compare the Boot 3.5 and Boot 4 dependency-management reports.
- Verify Spring Cloud and other portfolio release-train compatibility independently.
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
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 Migration loads about 672 tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 317 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). 317 words, ~672 tokens.
Download SKILL.mdSave it as
.claude/skills/spring-boot-migration/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- spring-boot-migration
- description
- Use when preparing a Spring Boot 3 application for Boot 4, upgrading to Boot 3.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration.
Spring Boot 3 to 4 Migration
Migrate in controlled stages. Keep behavior changes separate from the framework upgrade.
Establish the baseline
- Upgrade to the latest Boot 3.5 maintenance release.
- Run unit, slice, integration, startup, and migration tests before changing the major version.
- Remove Boot 3 deprecations and record all explicitly versioned dependencies.
- Compare the Boot 3.5 and Boot 4 dependency-management reports.
- Verify Spring Cloud and other portfolio release-train compatibility independently.
Prepare for Boot 4
- Require Java 17 or newer; prefer Java 21 for application builds.
- Replace
javax.*remnants with Jakarta APIs before the upgrade. - Remove Undertow assumptions; Boot 4 requires a Servlet 6.1-compatible container.
- Inventory Jackson 2 custom modules, serializers,
ObjectMapperbeans, and package imports. - Inventory test annotations, especially
@MockBean,@SpyBean, and implicit MockMvc setup. - Add
spring-boot-properties-migratortemporarily after changing the Boot version, then remove it.
Migrate dependencies deliberately
Boot 4 is more modular. Prefer dedicated starters over relying on incidental transitive dependencies. Expect dedicated starters for web MVC, security tests, Flyway/Liquibase, and technology-specific tests. Use the classic starters only as a temporary diagnostic bridge, never as the final dependency model.
Verify the result
- Run the application with every supported profile.
- Exercise schema migration against a production-like database copy.
- Verify JSON contracts, security failures, pagination, and error responses.
- Confirm actuator exposure, logging, metrics, and tracing behavior.
- Remove the properties migrator and all classic starters before declaring the migration complete.
Examples
- See
examples/good-migration-plan.mdfor a staged migration. - See
examples/bad-migration-plan.mdfor a risky one-step upgrade.
Gotchas
- Agent jumps from an old Boot 3 minor directly to Boot 4 - upgrade to current 3.5 first.
- Agent changes framework versions and business behavior together - isolate the migration diff.
- Agent assumes all Boot 3 starters keep the same names and transitive dependencies - audit each one.
- Agent leaves
spring-boot-properties-migratorin production - remove it after configuration cleanup. - Agent treats passing compilation as completion - verify runtime wiring, JSON, security, and tests.
© 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-boot-migration of rrezartprebreza/spring-boot-skills.
- SKILL.md
- agents/openai.yaml
- examples/bad-migration-plan.md
- examples/good-migration-plan.md
Open the folder on GitHubat commit f0c06a0
Compare with similar skills
Spring Boot Migration 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 Boot Migration this skillrrezartprebreza/spring-boot-skills | 298 | — | ~672 | 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 |
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Related
Works with
Categories
Questions about Spring Boot Migration
What does Spring Boot Migration do?
A skill your agent uses when preparing a Spring Boot 3 application for Boot 4, upgrading to Boot 3.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration. Spring Boot Migration is an agent skill from rrezartprebreza/spring-boot-skills.5 first, removing deprecated APIs, auditing dependencies, or planning a staged Framework 7 migration.
When should I use Spring Boot Migration?
Spring Boot Migration fits situations like: preparing a Spring Boot 3 application for Boot 4; upgrading to Boot 3.5 first; removing deprecated APIs; auditing dependencies.
How do I install Spring Boot Migration in Claude Code?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill spring-boot-migration -a claude-code`. Or copy the skill folder (skills/spring-boot-3/spring-boot-migration in rrezartprebreza/spring-boot-skills) into .claude/skills/spring-boot-migration in your project. Claude Code loads it when a task matches its description.
How do I install Spring Boot Migration in Codex?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill spring-boot-migration -a codex`. Or copy the skill folder (skills/spring-boot-3/spring-boot-migration in rrezartprebreza/spring-boot-skills) into .agents/skills/spring-boot-migration in your project. Codex loads it when a task matches its description.
Can I use Spring Boot Migration 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-boot-migration -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-migration, .gemini/skills/spring-boot-migration, .github/skills/spring-boot-migration and .opencode/skills/spring-boot-migration in your project.
What does Spring Boot Migration need to run?
SKILL.md names no scripts, command-line tools or credentials: Spring Boot Migration is instructions for the agent only.
Does Spring Boot Migration 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 Migration 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 Migration use?
Spring Boot Migration 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 Migration use?
About 672 tokens (SKILL.md is roughly 2.7k 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 Boot Migration?
Skills that share tags, products or a category with Spring Boot Migration: 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 Boot Migration?
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.