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 introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection.
Install Configuration Properties
$ npx skills add rrezartprebreza/spring-boot-skills --skill configuration-properties -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills configuration-properties --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/configuration-properties .claude/skills/configuration-properties && 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 "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .claude/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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/configuration-propertiesType 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 configuration-properties -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills configuration-properties --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/configuration-properties .agents/skills/configuration-properties && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .agents/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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 configuration-properties -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills configuration-properties --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/configuration-properties .cursor/skills/configuration-properties && 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 "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .cursor/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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/configuration-properties--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 configuration-properties -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills configuration-properties --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/configuration-properties .gemini/skills/configuration-properties && 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 "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .gemini/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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 configuration-propertiesInstalls 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 configuration-properties -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/configuration-properties .github/skills/configuration-properties && 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 "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .github/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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 configuration-properties -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 configuration-properties --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/configuration-properties .opencode/skills/configuration-properties && 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 "configuration-properties" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-3/configuration-properties into .opencode/skills/configuration-properties/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "configuration-properties", 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
configuration-properties- GitHub stars
- 301
- Token cost
- ~815 tokens
- SKILL.md length
- 362 words
- Files
- 5
- Skills in repo
- 51
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection.
- Correcting grouped Spring Boot configuration
- SKILL.md covers Spring Boot 3 baseline, Bind and validate, Deployment and overrides and Verification, plus 2 more sections
- Runs Java scripts from its folder
- Typed property binding
What it does
Configuration Properties is an agent skill from rrezartprebreza/spring-boot-skills. Use when introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection. Do not rewrite unrelated single-value configuration.
Its SKILL.md is about 820 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files (for example `agents/openai.yaml` and `examples/good-client.yml`).
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
- Correcting grouped Spring Boot configuration
- Typed property binding
- Secret injection
Example prompts
- “/configuration-properties”
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
Configuration Properties loads about 815 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 362 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). 362 words, ~815 tokens.
Download SKILL.mdSave it as
.claude/skills/configuration-properties/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.- name
- configuration-properties
- description
- Use when introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection. Do not rewrite unrelated single-value configuration.
Configuration Properties
Spring Boot 3 baseline
The examples use Java 17 and Jakarta APIs supported by this Boot version. Keep dependencies managed by the project's Boot BOM.
Bind and validate
Inspect existing property prefixes and external deployment configuration before renaming keys. Use a typed ConfigurationProperties record for a related group of settings. Register it with EnableConfigurationProperties or ConfigurationPropertiesScan; a record is not automatically a bean. Use Validated and Jakarta constraints, and include spring-boot-starter-validation. Validate nested objects with Valid. A single record constructor needs no ConstructorBinding annotation.
Use explicit units for durations and sizes. Provide defaults only when they are operationally safe; missing credentials or required endpoints should fail startup. Do not assume NotNull rejects zero or negative Duration values; add a duration constraint or an explicit invariant.
ClientProperties and its configuration show a validated prefix with explicit duration units. Do not turn a full API token into a record component: generated toString can expose secrets. Resolve secrets at the integration boundary or use a redacting value type.
Deployment and overrides
Document the public property keys and validate actual environment-variable binding in a test. Use environment variables or a mounted secret/config tree according to the deployment platform. Higher-precedence property sources can override packaged defaults; test the intended profile and override path. Avoid depending on YAML list merging: lists are generally replaced. Keep profile activation outside documents activated by that same profile.
Do not publish configprops/env actuator endpoints publicly or disable sanitization to debug. Binding is normally at startup; changing a file or secret does not imply live refresh. Define restart/rotation behavior when configuration changes.
Show full SKILL.md (99 more words)Show less
Verification
Use ApplicationContextRunner with EnableConfigurationProperties to assert valid binding and startup failure on missing or invalid settings. Test nested validation, unit conversion and the override path you actually deploy. Include at least one invalid duration test.
Gotchas
- Agent defines a properties record but never registers it - enable scanning or explicit registration.
- Agent adds Validated without a validation provider - include the validation starter.
- Agent uses a bare numeric timeout - use explicit units.
- Agent adds a default credential - fail fast and inject secrets externally.
- Agent logs the full bound configuration - redact secret-bearing values.
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 4 other files in skills/spring-boot-3/configuration-properties of rrezartprebreza/spring-boot-skills.
- SKILL.md
- agents/openai.yaml
- examples/ClientProperties.java
- examples/bad-client.java
- examples/good-client.yml
Open the folder on GitHubat commit f0c06a0
Compare with similar skills
Configuration Properties 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 |
|---|---|---|---|---|---|---|
| Configuration Properties this skillrrezartprebreza/spring-boot-skills | 301 | — | ~815 | 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 Configuration Properties
What does Configuration Properties do?
A skill your agent uses when introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection. Configuration Properties is an agent skill from rrezartprebreza/spring-boot-skills. Use when introducing or correcting grouped Spring Boot configuration, typed property binding, validation, profiles or secret injection.
When should I use Configuration Properties?
Configuration Properties fits situations like: correcting grouped Spring Boot configuration; typed property binding; secret injection.
How do I install Configuration Properties in Claude Code?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill configuration-properties -a claude-code`. Or copy the skill folder (skills/spring-boot-3/configuration-properties in rrezartprebreza/spring-boot-skills) into .claude/skills/configuration-properties in your project. Claude Code loads it when a task matches its description.
How do I install Configuration Properties in Codex?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill configuration-properties -a codex`. Or copy the skill folder (skills/spring-boot-3/configuration-properties in rrezartprebreza/spring-boot-skills) into .agents/skills/configuration-properties in your project. Codex loads it when a task matches its description.
Can I use Configuration Properties 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 configuration-properties -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/configuration-properties, .gemini/skills/configuration-properties, .github/skills/configuration-properties and .opencode/skills/configuration-properties in your project.
What does Configuration Properties need to run?
Going by SKILL.md and its folder, Configuration Properties needs Java for the scripts in its folder.
Does Configuration Properties 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 Configuration Properties 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 Configuration Properties use?
Configuration Properties 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 Configuration Properties use?
About 815 tokens (SKILL.md is roughly 3.3k 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 Configuration Properties?
Skills that share tags, products or a category with Configuration Properties: 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 Configuration Properties?
rrezartprebreza (a GitHub user) maintains it in rrezartprebreza/spring-boot-skills, which has 301 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.