piomin/claude-ai-spring-boot is a starter template for creating Spring Boot applications with Claude Code. Developers clone it as a structured foundation when using Claude Code to generate Spring Boot projects.
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.
npx skills add piomin/claude-ai-spring-boot --skill conventionsgit clone --depth 1 https://github.com/piomin/claude-ai-spring-bootWrote 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.
[](https://agentmods.dev/skills/piomin/claude-ai-spring-boot/conventions)<a href="https://agentmods.dev/skills/piomin/claude-ai-spring-boot/conventions"><img src="https://agentmods.dev/badge/skills/piomin/claude-ai-spring-boot/conventions/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.
<a href="https://agentmods.dev/skills/piomin/claude-ai-spring-boot/conventions"><img src="https://agentmods.dev/badge/skills/piomin/claude-ai-spring-boot/conventions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00043 | $0.00536 |
| Opus 5.5 | $0.00017 | $0.00214 |
| Sonnet 5.5 | $0.00009 | $0.00107 |
| Haiku 4.5 | $0.00004 | $0.00054 |
Grade A, and why
conventions 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 3d 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.
What it actually says
Spring Boot Project Conventions
These conventions apply to ALL code generated or reviewed in the project. Follow them strictly.
Mandatory Rules
- No Lombok — write explicit constructors, getters, setters; use
LoggerFactory.getLogger()for loggers - Constructor injection — no
@Autowiredon fields - RestClient over RestTemplate/WebClient for blocking HTTP calls
- RestTestClient with
@AutoConfigureRestTestClientfor integration tests - Testcontainers with
@ServiceConnection(not@DynamicPropertySource) - Jakarta Persistence (not
javax.persistence) - Java records for DTOs (request/response objects)
- Maven for dependency management
- Group ID:
pl.piomin.services - Artifact name = parent directory name
- Semantic versioning — bump PATCH on each new version
- Docker Compose for local dependencies
- CI pipeline — generate CI/CD config; detect existing CI setup (
.github/workflows/,.circleci/,.gitlab-ci.yml) and match it, or default to a sensible choice - Tests — always write both positive and negative test cases
- Update
README.mdon each new version
Code Quality Standards
- Use latest Spring Boot 4.x and Java 21+
@Transactional(readOnly = true)at service class level,@Transactionalon mutating methods@Valid @RequestBodyon all POST/PUT endpoints@RestControllerAdvicefor global exception handling- Return
ResponseEntitywith proper status codes (201 Created, 204 No Content) @ConfigurationPropertiesfor type-safe config (no raw@Valuefor groups)@HttpExchangeinterfaces for declarative HTTP clients- Virtual threads enabled by default (
spring.threads.virtual.enabled: true) - Problem Details enabled (
spring.mvc.problemdetails.enabled: true) - Graceful shutdown configured (
server.shutdown: graceful)
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.
- 3d ago First seen · 47 lines · 43 tokens per session scan A bd5fd98bf120
conventions is a skill published in the GitHub repository piomin/claude-ai-spring-boot (1,423 stars, last pushed today), licensed Apache-2.0. It adds 43 tokens to every session and 536 once invoked, about $0.0002 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 2026-10-19.
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