Agent skill

Spring Boot Fallback

by makifbaysal in makifbaysal/tasktrooper

A skill your agent uses when Java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering, only when a required library lacks a Quarkus extension or the…

Apache-2.0Auto-check passedBackend & APIs

Install Spring Boot Fallback

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a claude-code

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

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback --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/makifbaysal/tasktrooper.git skills-src && mkdir -p .claude/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .claude/skills/spring-boot-fallback && 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/

Paste into Claude Code

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .claude/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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

$skill-installer install https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback

Type 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.

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/makifbaysal/tasktrooper.git skills-src && mkdir -p .agents/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .agents/skills/spring-boot-fallback && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .agents/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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.

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/makifbaysal/tasktrooper.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .cursor/skills/spring-boot-fallback && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .cursor/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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

$ gemini skills install https://github.com/makifbaysal/tasktrooper.git --path catalog/agents/backend-developer/skills/spring-boot-fallback

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/makifbaysal/tasktrooper.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .gemini/skills/spring-boot-fallback && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .gemini/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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.

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback

Installs 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).

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/makifbaysal/tasktrooper.git skills-src && mkdir -p .github/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .github/skills/spring-boot-fallback && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .github/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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.

skills CLI

$ npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install makifbaysal/tasktrooper spring-boot-fallback --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/makifbaysal/tasktrooper.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/catalog/agents/backend-developer/skills/spring-boot-fallback .opencode/skills/spring-boot-fallback && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "spring-boot-fallback" agent skill from https://github.com/makifbaysal/tasktrooper/tree/main/catalog/agents/backend-developer/skills/spring-boot-fallback into .opencode/skills/spring-boot-fallback/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "spring-boot-fallback", 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-fallback
GitHub stars: 109
Token cost: ~1.1k tokens
SKILL.md length: 430 words
Files: 1
Skills in repo: 99
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering
SKILL.md covers Overview, When Spring Boot instead of…, Layer mapping (same… and Patterns (identical discipline), plus 4 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Only when a required library lacks a Quarkus extension

What it does

Spring Boot Fallback is an agent skill from makifbaysal/tasktrooper. Use when Java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering, only when a required library lacks a Quarkus extension or the repo already standardizes on Spring

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering Backend development. It works with Spring Boot and Java. The repository describes itself as: Local-first agent platform: board + role agents + agent CLI runs (Claude Code, Cursor, Antigravity, OpenCode) or local and API models (Ollama, LM Studio), all on your own Mac. The licence is Apache-2.0.

When your agent uses it

Java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering
Only when a required library lacks a Quarkus extension
The repo already standardizes on Spring

Example prompts

“/spring-boot-fallback”

What it can do on your machine

Read from SKILL.md and the folder at commit 09f6258. 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 (its code samples are java).
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 Fallback loads about 1.1k tokens when it runs. Until then it costs about 59 tokens; SKILL.md has 430 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~59
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

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 makifbaysal/tasktrooper at commit 09f6258, republished under its Apache-2.0 licence (© makifbaysal). 430 words, ~1,142 tokens.

Download SKILL.mdSave it as .claude/skills/spring-boot-fallback/SKILL.md (or your agent's skills folder).

name: spring-boot-fallback
description: Use when Java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering, only when a required library lacks a Quarkus extension or the repo already standardizes on Spring
category: architecture
tech_stack: Java

Spring Boot Fallback

Overview

Quarkus is the default (see quarkus-service-architecture). Spring Boot is the fallback — reach for it only when Quarkus genuinely does not fit. The architecture is the same clean layering; only the annotations and container differ.

Core principle: Same layered design as Quarkus. Spring is a container choice, not a license to sprawl.

When Spring Boot instead of Quarkus

The repository already uses Spring Boot — follow it.
A required library/integration has no Quarkus extension and no clean CDI alternative.
The deployment target or team standard mandates Spring.

If none of these hold, use Quarkus.

Layer mapping (same responsibilities, Spring surface)

Layer	Quarkus	Spring Boot
Resource/Controller	JAX-RS `@Path`	`@RestController` `@RequestMapping`
Service	`@ApplicationScoped`	`@Service`
Repository	Panache	`JpaRepository` (Spring Data)
Validation	`@Valid` + Bean Validation	`@Valid` + Bean Validation
Config	`@ConfigProperty`	`@ConfigurationProperties` / `@Value`
Transaction	`@Transactional` (service)	`@Transactional` (service)

Patterns (identical discipline)

Constructor injection only — Spring injects a single constructor automatically; no @Autowired on fields.
DTOs (records) at the controller edge; never return JPA entities from a controller.
Bean Validation on request DTOs, @Valid on the controller method.
Domain invariants live in the domain class, not only in the DTO annotations.
Global error handling via @RestControllerAdvice mapping domain exceptions to status codes — controllers stay thin.

Worked Example

java

@RestController
@RequestMapping("/tasks")
class TaskController {
    private final TaskService service;
    TaskController(TaskService service) { this.service = service; }   // constructor injection

    @PostMapping
    ResponseEntity<TaskResponse> create(@Valid @RequestBody CreateTaskRequest req) {
        Task t = service.create(req.title());
        return ResponseEntity.status(201).body(TaskResponse.from(t));
    }
}

@Service
class TaskService {
    private final TaskRepository repo;
    TaskService(TaskRepository repo) { this.repo = repo; }

    @Transactional
    Task create(String title) {
        Task t = Task.create(title);   // domain enforces invariants
        return repo.save(t);
    }
}

Show full SKILL.md (227 more words)Show less

Boot 4 notes

Spring Boot 4.x runs on Spring Framework 7 and Jakarta EE 11; Java 17 is the floor, 25 is recommended. Never bump a repo's Boot major in a feature task — 3.5's open-source support ended 2026-06-30, so a repo still on 3.5 should be flagged, not silently upgraded mid-task.
Jackson 3 (tools.jackson.*) replaces the com.fasterxml.jackson.* import paths used through Boot 3.x — check which the repo is on before copying an import.
Error responses: ProblemDetail + spring.mvc.problemdetails.enabled=true, or throw ErrorResponseException — see api-design-conventions for the shape.
Outbound HTTP: prefer RestClient or a declarative @HttpExchange interface client over a hand-rolled RestTemplate call.
Boot 4 has built-in API versioning (spring.mvc.apiversion.*) — use it instead of a custom header/path scheme when the repo needs to version an endpoint.
ResponseEntity.created(uri) for a 201 with Location set, rather than building the header by hand.
spring.jpa.open-in-view=false (java-persistence) and structured logging (logging.structured.format.console=ecs, available since 3.4) are repo-level settings, not per-task changes — follow what's already set.
@MockitoBean/@MockitoSpyBean replace @MockBean/@SpyBean (removed in 4.0) — see java-testing-junit-mockito.

Common Mistakes

Choosing Spring by habit when Quarkus fits — Quarkus is the default.
@Autowired field injection — use the constructor.
Business logic in @RestControllerAdvice or the controller.
Returning entities instead of DTOs.
Using @MockBean/RestTemplate-only patterns on a Boot 4 repo where the current idiom (@MockitoBean, RestClient) already applies.

Red Flags

You chose Spring but can't name why Quarkus didn't fit.
Fat controller, anemic service.

Files

Just SKILL.md in catalog/agents/backend-developer/skills/spring-boot-fallback of makifbaysal/tasktrooper.

Open the folder on GitHubat commit 09f6258

Compare with similar skills

Spring Boot Fallback 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 Fallback compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Spring Boot Fallback this skillmakifbaysal/tasktrooper	109	—	~1.1k	Automated safety check: Pass	Apache-2.0	today
Spring Bootpiomin/claude-ai-spring-boot	1.3k	—	~2k	Automated safety check: Pass	Apache-2.0	5 mo ago
Dr Jskilljdubois/dr-jskill	342	—	~4.6k	Automated safety check: Notes	Apache-2.0	8 days ago
WxJava Integration Guidebinarywang/WxJava	33k	—	~123	Automated safety check: Pass	Apache-2.0	12 days ago
Flycms Devsunkaifei/FlyCms	656	—	~827	Automated safety check: Pass	MIT	6 days ago
Intelliconnect Service Styleruanrongman/IntelliConnect	147	—	~2.4k	Automated safety check: Pass	Apache-2.0	yesterday

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Questions about Spring Boot Fallback

What does Spring Boot Fallback do?

When should I use Spring Boot Fallback?

Spring Boot Fallback fits situations like: java is chosen but Quarkus does not fit - build the service with Spring Boot using the same clean layering; only when a required library lacks a Quarkus extension; the repo already standardizes on Spring.

How do I install Spring Boot Fallback in Claude Code?

Run `npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a claude-code`. Or copy the skill folder (catalog/agents/backend-developer/skills/spring-boot-fallback in makifbaysal/tasktrooper) into .claude/skills/spring-boot-fallback in your project. Claude Code loads it when a task matches its description.

How do I install Spring Boot Fallback in Codex?

Run `npx skills add makifbaysal/tasktrooper --skill spring-boot-fallback -a codex`. Or copy the skill folder (catalog/agents/backend-developer/skills/spring-boot-fallback in makifbaysal/tasktrooper) into .agents/skills/spring-boot-fallback in your project. Codex loads it when a task matches its description.

Can I use Spring Boot Fallback 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 makifbaysal/tasktrooper --skill spring-boot-fallback -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-fallback, .gemini/skills/spring-boot-fallback, .github/skills/spring-boot-fallback and .opencode/skills/spring-boot-fallback in your project.

What does Spring Boot Fallback need to run?

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

Does Spring Boot Fallback 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 Fallback 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 Fallback use?

Spring Boot Fallback is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Spring Boot Fallback use?

About 1.1k tokens (SKILL.md is roughly 4.6k 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 Fallback?

Skills that share tags, products or a category with Spring Boot Fallback: 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 Flycms Dev (sunkaifei/FlyCms, 656 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Spring Boot Fallback?

makifbaysal (a GitHub user) maintains it in makifbaysal/tasktrooper, which has 109 GitHub stars. The repository holds 99 skills in this directory. The repository was last updated on October 7, 2026.

Source: makifbaysal/tasktrooper on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Spring Boot Fallback

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Spring Boot Fallback

Overview

When Spring Boot instead of Quarkus

Layer mapping (same responsibilities, Spring surface)

Patterns (identical discipline)

Worked Example

Boot 4 notes

Common Mistakes

Red Flags

Files

Compare with similar skills

Similar skills

More from makifbaysal/tasktrooper

Related

Questions about Spring Boot Fallback