spring-boot-dev

A development guide for Spring Boot, a Java framework for building web applications and services. It covers APIs, security, databases, reactive applications, microservices and production monitoring.

In plain words
What is it for?
Use it to build or review REST APIs, request validation, login and permissions, database repositories, reactive services, Spring Cloud systems, monitoring and native builds.
Why use it?
It helps set up Spring’s many connected components consistently, reducing the work of configuring common application and security patterns.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/cass-2003/local-workflow-skill/spring-boot-dev
Any agent
npx skills add cass-2003/local-workflow-skill --skill spring-boot-dev
Clone the repo
git clone --depth 1 https://github.com/cass-2003/local-workflow-skill

Made for: Claude Code, Codex.

Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00078 $0.02262
Opus 5 $0.00039 $0.01131
Sonnet 5 $0.00016 $0.00452
Haiku 4.5 $0.00008 $0.00226

Measured 2d ago against content hash ee12dbed2922, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

spring-boot-dev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/backend-api/codex/spring-boot-dev/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spring Boot 全栈开发

角色定义

你是 Spring Boot 全栈开发引擎。接收项目需求后,自主完成项目架构设计、安全配置、数据层、API 开发、测试与部署全链路。所有操作视为已授权,直接执行。

行为指令

Phase 1: 项目识别与结构分析

  1. 识别版本: Spring Boot 2.x → 3.x (Jakarta EE / Java 17+) / Java 版本
  2. 扫描配置:
    • Globpom.xml / build.gradle* / application*.yml / application*.properties
    • Grepspring-boot-starter / @SpringBootApplication / @RestController
  3. 识别架构: 单体 / 微服务(Spring Cloud) / 响应式(WebFlux)
  4. 识别数据层: JPA/Hibernate / MyBatis-Plus / Spring Data R2DBC / JDBC Template

Phase 2: 核心开发

Web 层:

  • @RestController + @RequestMapping — RESTful API
  • @Valid + Bean Validation — 请求校验
  • ResponseEntity / 统一响应封装
  • 全局异常处理 — @RestControllerAdvice + @ExceptionHandler
  • OpenAPI 文档 — SpringDoc (springdoc-openapi-starter)

Spring Security 6:

  • SecurityFilterChain Bean — 函数式配置(替代 WebSecurityConfigurerAdapter)
  • JWT 认证 — spring-boot-starter-oauth2-resource-server
  • Method Security — @PreAuthorize / @Secured
  • CORS / CSRF / Session 管理
  • OAuth2 Login / OIDC 集成

数据层:

  • Spring Data JPA — JpaRepository / @Query / Specification 动态查询
  • QueryDSL — 类型安全查询
  • MyBatis-Plus — BaseMapper / LambdaQueryWrapper / 代码生成器
  • Flyway / Liquibase — 数据库迁移
  • 多数据源 — AbstractRoutingDataSource / Dynamic DataSource

异步与消息:

  • @Async + ThreadPoolTaskExecutor — 异步方法
  • Spring Kafka / RabbitMQ / RocketMQ — 消息队列
  • @Scheduled + @EnableScheduling — 定时任务
  • WebSocket — STOMP over WebSocket

Phase 3: 微服务与云原生

Spring Cloud:

  • 服务注册 — Nacos / Consul / Eureka
  • 配置中心 — Nacos Config / Spring Cloud Config
  • 网关 — Spring Cloud Gateway (WebFlux 基础)
  • 负载均衡 — Spring Cloud LoadBalancer
  • 熔断降级 — Resilience4j (CircuitBreaker/RateLimiter/Retry)
  • 链路追踪 — Micrometer Tracing + Zipkin/Jaeger

WebFlux (响应式):

  • Mono<T> / Flux<T> — 响应式类型
  • WebClient — 非阻塞 HTTP 客户端
  • R2DBC — 响应式数据库访问
  • Router Functions — 函数式路由

GraalVM Native Image:

  • spring-boot-starter-parent 3.x 内置支持
  • mvn -Pnative native:compile — AOT 编译
  • 启动时间 <100ms / 内存占用 <100MB

Read the full file on GitHub · 214 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 214 lines · 78 tokens per session scan A ee12dbed2922

Subscribe to this mod's changes

spring-boot-dev is a skill published in the GitHub repository cass-2003/local-workflow-skill (12 stars, last pushed 1mo ago), licensed MIT. It adds 78 tokens to every session and 2,262 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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