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 the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation.
Install Webflux Reactive Patterns
$ npx skills add rrezartprebreza/spring-boot-skills --skill webflux-reactive-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills webflux-reactive-patterns --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-4/webflux-reactive-patterns .claude/skills/webflux-reactive-patterns && 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 "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .claude/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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-4/webflux-reactive-patternsType 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 webflux-reactive-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills webflux-reactive-patterns --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-4/webflux-reactive-patterns .agents/skills/webflux-reactive-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .agents/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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 webflux-reactive-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills webflux-reactive-patterns --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-4/webflux-reactive-patterns .cursor/skills/webflux-reactive-patterns && 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 "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .cursor/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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-4/webflux-reactive-patterns--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 webflux-reactive-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rrezartprebreza/spring-boot-skills webflux-reactive-patterns --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-4/webflux-reactive-patterns .gemini/skills/webflux-reactive-patterns && 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 "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .gemini/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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 webflux-reactive-patternsInstalls 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 webflux-reactive-patterns -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-4/webflux-reactive-patterns .github/skills/webflux-reactive-patterns && 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 "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .github/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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 webflux-reactive-patterns -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 webflux-reactive-patterns --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-4/webflux-reactive-patterns .opencode/skills/webflux-reactive-patterns && 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 "webflux-reactive-patterns" agent skill from https://github.com/rrezartprebreza/spring-boot-skills/tree/main/skills/spring-boot-4/webflux-reactive-patterns into .opencode/skills/webflux-reactive-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "webflux-reactive-patterns", 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
webflux-reactive-patterns- GitHub stars
- 298
- Token cost
- ~623 tokens
- SKILL.md length
- 243 words
- Files
- 4
- Skills in repo
- 51
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation.
- The complete Spring Boot 4 request path is reactive: WebFlux controllers
- SKILL.md covers Dependencies and pipeline rules, Context and errors, Persistence and streaming and Testing, plus 3 more sections
- Runs Java scripts from its folder
- Reactor pipelines
What it does
Webflux Reactive Patterns is an agent skill from rrezartprebreza/spring-boot-skills. Use when the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation. For defining and registering declarative outbound API interfaces, use http-interface-clients.
Its SKILL.md is about 620 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
- The complete Spring Boot 4 request path is reactive: WebFlux controllers
- Reactor pipelines
- R2DBC persistence
Example prompts
- “/webflux-reactive-patterns”
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.ioprojectreactor.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
Webflux Reactive Patterns loads about 623 tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 243 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). 243 words, ~623 tokens.
Download SKILL.mdSave it as
.claude/skills/webflux-reactive-patterns/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- webflux-reactive-patterns
- description
- Use when the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation. For defining and registering declarative outbound API interfaces, use http-interface-clients.
WebFlux Reactive Patterns
Use WebFlux when the complete request path benefits from non-blocking I/O.
Dependencies and pipeline rules
- Use the dedicated Boot 4 WebFlux and WebFlux test starters.
- Return
MonoorFlux; never callsubscribe()in request-handling code. - Choose
flatMap,concatMap, or sequential composition according to ordering needs. - Keep JDBC, filesystem, and blocking SDK calls off Reactor event loops.
- Isolate unavoidable blocking work on
boundedElasticat the adapter boundary. - Apply timeouts to external calls and preserve cancellation.
Context and errors
- Put request-scoped metadata in Reactor
Context, notThreadLocal. - Configure observability context propagation deliberately.
- Translate domain failures centrally without swallowing cancellation.
- Use
onErrorResumeonly for a defined fallback and avoidonErrorContinue.
Persistence and streaming
- Use R2DBC for reactive database access.
- Bound fan-out concurrency according to downstream capacity.
- Define backpressure, buffering, and maximum in-memory sizes.
- Never collect an unbounded stream solely to simplify downstream code.
Testing
- Use
StepVerifierfor publisher behavior andWebTestClientfor contracts. - Test cancellation, timeout, empty results, errors, ordering, and backpressure.
- Detect blocking calls in tests when practical.
Examples
- See
examples/good-reactive-service.javaandexamples/bad-reactive-service.java.
Official sources
- Spring WebFlux: https://docs.spring.io/spring-framework/reference/web/webflux.html
- Reactor reference: https://projectreactor.io/docs/core/release/reference/
- Spring Data R2DBC: https://docs.spring.io/spring-data/relational/reference/r2dbc.html
Gotchas
- Agent adds MVC and WebFlux starters accidentally - choose the intended web stack.
- Agent calls
block()orsubscribe()in application flow - keep subscription with the runtime. - Agent uses
ThreadLocalfor tenant or trace data - use ReactorContext. - Agent uses unbounded
flatMap- set concurrency from downstream limits. - Agent wraps JDBC with
Mono.just- this still blocks the event loop.
© 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-4/webflux-reactive-patterns of rrezartprebreza/spring-boot-skills.
- SKILL.md
- agents/openai.yaml
- examples/bad-reactive-service.java
- examples/good-reactive-service.java
Open the folder on GitHubat commit f0c06a0
Compare with similar skills
Webflux Reactive Patterns 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 |
|---|---|---|---|---|---|---|
| Webflux Reactive Patterns this skillrrezartprebreza/spring-boot-skills | 298 | — | ~623 | 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 Webflux Reactive Patterns
What does Webflux Reactive Patterns do?
A skill your agent uses when the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation. Webflux Reactive Patterns is an agent skill from rrezartprebreza/spring-boot-skills. Use when the complete Spring Boot 4 request path is reactive: WebFlux controllers, Reactor pipelines, R2DBC persistence, streaming, backpressure, or cancellation.
When should I use Webflux Reactive Patterns?
Webflux Reactive Patterns fits situations like: the complete Spring Boot 4 request path is reactive: WebFlux controllers; reactor pipelines; R2DBC persistence.
How do I install Webflux Reactive Patterns in Claude Code?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill webflux-reactive-patterns -a claude-code`. Or copy the skill folder (skills/spring-boot-4/webflux-reactive-patterns in rrezartprebreza/spring-boot-skills) into .claude/skills/webflux-reactive-patterns in your project. Claude Code loads it when a task matches its description.
How do I install Webflux Reactive Patterns in Codex?
Run `npx skills add rrezartprebreza/spring-boot-skills --skill webflux-reactive-patterns -a codex`. Or copy the skill folder (skills/spring-boot-4/webflux-reactive-patterns in rrezartprebreza/spring-boot-skills) into .agents/skills/webflux-reactive-patterns in your project. Codex loads it when a task matches its description.
Can I use Webflux Reactive Patterns 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 webflux-reactive-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/webflux-reactive-patterns, .gemini/skills/webflux-reactive-patterns, .github/skills/webflux-reactive-patterns and .opencode/skills/webflux-reactive-patterns in your project.
What does Webflux Reactive Patterns need to run?
Going by SKILL.md and its folder, Webflux Reactive Patterns needs Java for the scripts in its folder.
Does Webflux Reactive Patterns access the network?
SKILL.md names 2 domains. As links in the text: docs.spring.io and projectreactor.io. This is read from the text; nothing was executed.
Is Webflux Reactive Patterns 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 Webflux Reactive Patterns use?
Webflux Reactive Patterns 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 Webflux Reactive Patterns use?
About 623 tokens (SKILL.md is roughly 2.5k 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 Webflux Reactive Patterns?
Skills that share tags, products or a category with Webflux Reactive Patterns: 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 Webflux Reactive Patterns?
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.