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Java 编码规范 · snailclimb | DecimalAI

codingby snailclimb

Java 编码规范

snailclimb/java-coding-standards

Source snailclimb/aiguide ↗License Not recorded

Java/Spring Boot 编码规范：用于编写、审查、重构和讲解 Java 代码。适用于 Java 风格、Spring Boot 架构、Controller/Service/Manager/DAO 分层、API 边界、Entity/VO/Form/DTO/BO 设计、MyBatis/MyBatis-Plus 持久化、事务、异常、日志、安全、性能、测试和 Java 代码评审等场景。默认结合 Google Java Style 与 Spring Boot 最佳实践，同时允许仓库内的 AGENTS.md、CLAUDE.md、Checkstyle、Spotless 以及相邻代码风格覆盖这些通用规则。

SkillScore91Maintained

Automatic

Coding pack

Last verified 8/20/2026

What it changes

Passed 20 of 22 test cases with the skill, and 14 of 22 without it.

Without skill64%

With skill91%

Checks it passed that the model alone missed

Annotates transactional methods with rollbackFor = Exception.class.
Places transaction management default annotations in the Manager layer.
Names boolean fields with a Flag suffix such as defaultFlag rather than isDefault.

and 5 more in the full report

6 fixed14 passed either way2 still failing0 broke

Pass-rate lift: +27 pp
Tokens: +67%
Agent turns: 0%
Response time: -19%

Model gemini-3.6-flashMeasured 8/20/2026v120 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/snailclimb-java-coding-standards/SKILL.md https://app.decimal.ai/s/snailclimb-java-coding-standards/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add snailclimb-java-coding-standards, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/snailclimb-java-coding-standards/ and pins it in .decimal/skills.lock

decimalai skills add snailclimb-java-coding-standards

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/snailclimb-java-coding-standards/SKILL.md https://app.decimal.ai/s/snailclimb-java-coding-standards/SKILL.md

Raw file: /s/snailclimb-java-coding-standards/SKILL.md ↗ · machine-readable summary at /s/snailclimb-java-coding-standards.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 6

Prompt

A developer asks 'Why shouldn't we use field injection with @Autowired in Spring Boot?'. In what structured order should this coding standard question be answered?

What was checked, without and with the skill
Checked	Without skill	With skill
Structures the response using the sequential order: rule statement, underlying rationale, code example, and local override check.	Missed	Passed

case-18 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md110 lines5 files

Java 编码规范

将这个 skill 视为 Java 17+ / Spring Boot 项目的简明工作卡。SKILL.md 只保留流程和路由，具体规则按需加载 references/ 下的参考文件。

使用原则

仓库内规则优先于本 skill。若 AGENTS.md、CLAUDE.md、本地格式化配置或相邻代码与本 skill 冲突，优先遵循仓库约定；只有当冲突会影响结果时，再明确指出。
不要为了满足本 skill 而大规模重构无关代码。优先贴近现有模式，除非当前实现已经带来真实的正确性、安全性、事务或可维护性风险。
规则要尽量具体、可检查。维护本 skill 时，始终追问一句：删掉这条后，AI 是否更容易犯真实错误？
禁止项要配上推荐替代方案。例如：不要用字段注入；优先使用构造器注入，通常配合 Lombok @RequiredArgsConstructor。
机械性规则尽量交给工具。优先依赖 formatter、Checkstyle、Spotless、测试、CI 或 hooks，不要只靠自然语言约束格式。

工作流程

编写或重构代码时

先看项目上下文：构建文件、本地说明文件、formatter/lint 配置、包结构以及相似类的现有写法。
只加载当前改动真正需要的参考文件，按下方“参考路由”选择。
控制改动面，尽量只改行为相关部分，不顺手做无关清理。
把逻辑放到正确层级： Controller 负责路由、认证边界、校验注解和响应转换； Service 负责业务编排； Manager 负责事务和 DAO 组合； DAO/Mapper 负责持久化。
用最小但有效的命令验证：优先跑定向测试、模块编译、formatter 或静态检查；如果没跑，要说明原因。

代码评审时

先看 bug 和风险，不要先盯风格细节。
按严重程度排序问题，并尽量给出文件/行号引用。
每个问题都说明：违反了什么规则、为什么重要、推荐怎么修。
风格问题只有在会带来维护成本，或与仓库工具链冲突时才提。
如果没有发现问题，要明确说明，同时补充剩余的测试或验证缺口。

回答规范类问题时

优先按这个结构回答：规则、原因、示例、以及仓库内是否存在本地覆盖约定。

参考路由

Track record

Benchmark

20 / 22

test cases passed, vs 14 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

snailclimb / aiguide

skills/java-coding-standards/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1Bundled 4 files

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Java 编码规范

使用原则

工作流程

编写或重构代码时

代码评审时

回答规范类问题时

参考路由

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills