What is 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.

Use it to build or review REST APIs, request validation, login and permissions, database repositories, reactive services, Spring Cloud systems, monitoring and native builds.

It helps set up Spring’s many connected components consistently, reducing the work of configuring common application and security patterns.

spring-boot-dev — Skill for Claude Code by cass-2003

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.

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.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/spring-boot-dev/github.svg)](https://agentmods.dev/skills/cass-2003/local-workflow-skill/spring-boot-dev)

Your own site

<a href="https://agentmods.dev/skills/cass-2003/local-workflow-skill/spring-boot-dev"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/spring-boot-dev/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/cass-2003/local-workflow-skill/spring-boot-dev"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/spring-boot-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

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. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00078	$0.02262
Opus 5.5	$0.00031	$0.00905
Sonnet 5.5	$0.00016	$0.00452
Haiku 4.5	$0.00008	$0.00226

Measured 1mo ago against content hash ee12dbed2922, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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

识别版本: Spring Boot 2.x → 3.x (Jakarta EE / Java 17+) / Java 版本
扫描配置:
- Glob — pom.xml / build.gradle* / application*.yml / application*.properties
- Grep — spring-boot-starter / @SpringBootApplication / @RestController
识别架构: 单体 / 微服务(Spring Cloud) / 响应式(WebFlux)
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.

1mo 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 3mo ago), licensed MIT. It adds 78 tokens to every session and 2,262 once invoked, about $0.0003 per session on Opus 5.5. 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.

Backend and APIs Java Languages

spring-boot-dev

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Spring Boot 全栈开发

角色定义

行为指令

Phase 1: 项目识别与结构分析

Phase 2: 核心开发

Phase 3: 微服务与云原生

What this file has done since we first saw it

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