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 sivaprasadreddy/sivalabs-agent-skills --skill spring-bootgit clone --depth 1 https://github.com/sivaprasadreddy/sivalabs-agent-skillsWrote 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/sivaprasadreddy/sivalabs-agent-skills/spring-boot)<a href="https://agentmods.dev/skills/sivaprasadreddy/sivalabs-agent-skills/spring-boot"><img src="https://agentmods.dev/badge/skills/sivaprasadreddy/sivalabs-agent-skills/spring-boot/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/sivaprasadreddy/sivalabs-agent-skills/spring-boot"><img src="https://agentmods.dev/badge/skills/sivaprasadreddy/sivalabs-agent-skills/spring-boot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00166 | $0.00996 |
| Opus 5 | $0.00083 | $0.00498 |
| Sonnet 5 | $0.00033 | $0.00199 |
| Haiku 4.5 | $0.00017 | $0.00100 |
Grade A, and why
spring-boot-skill 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Boot Skill
Apply the practices below when developing Spring Boot applications. Read the linked reference only when working on that area.
Maven pom.xml Configuration
Read references/spring-boot-maven-config.md for Maven pom.xml configuration with supporting plugins and configurations to improve code quality, and testing.
Package structure
Read references/code-organization.md for domain-driven, module-based package layout and naming conventions.
Spring Data JPA
Implement the repository and entity layer using references/spring-data-jpa.md.
Service layer
Implement business logic in the service layer using references/spring-service-layer.md.
Spring MVC REST APIs
Implement REST APIs with Spring MVC using references/spring-webmvc-rest-api.md.
Spring Modulith
Build a modular monolith with Spring Modulith using references/spring-modulith.md.
Thymeleaf
If Thymeleaf is used for view templates, refer references/thymeleaf.md
Testing
Write tests at complementary levels — unit, sliced Spring tests, and at least one end-to-end/smoke test; the levels are not either/or. Most framework-touching tests belong at the fast sliced level (@SpringBootTest(classes = …) or a slice annotation); keep full-context @SpringBootTest for a smoke test plus a request-level end-to-end. For why the levels are complementary and how to keep a large suite fast (context caching, one container for the suite), read references/testing-strategy.md.
| What you're testing | Level | Reference |
|---|---|---|
| Business/domain logic, no framework | Unit (no Spring context) | testing-unit-mocking.md |
| JPA / JDBC / JdbcClient / Spring Data JDBC / jOOQ queries | Persistence slice + Testcontainers | testing-slices-persistence.md |
| Controller, JSON serialization, or a REST client | Web slice (@WebMvcTest/@JsonTest/@RestClientTest) |
testing-slices-web.md |
| A few components together, external HTTP (WireMock), or a startup/request-level smoke test | Sliced @SpringBootTest(classes = …) or smoke test |
testing-integration.md |
Full REST API over a real port, full BaseIT suite (RestTestClient) |
End-to-end | spring-boot-rest-api-testing.md |
A view-rendering controller (MockMvcTester) |
Web slice | spring-boot-webapp-testing-with-mockmvctester.md |
Wiring a container (@ServiceConnection / dynamic properties) |
— | testcontainers-wiring.md |
What ships with it
18 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/archunit.md 3.2 KB
- references/code-organization.md 5.4 KB
- references/spring-boot-docker-compose.md 1.0 KB
- references/spring-boot-maven-config.md 5.2 KB
- references/spring-boot-rest-api-testing.md 9.0 KB
- references/spring-boot-webapp-testing-with-mockmvctester.md 3.6 KB
- references/spring-data-jpa.md 6.9 KB
- references/spring-modulith.md 3.6 KB
- references/spring-service-layer.md 3.4 KB
- references/spring-webmvc-rest-api.md 7.7 KB
- references/taskfile.md 2.1 KB
- references/testcontainers-wiring.md 6.8 KB
- references/testing-integration.md 11 KB
- references/testing-slices-persistence.md 5.2 KB
- references/testing-slices-web.md 3.7 KB
- references/testing-strategy.md 7.6 KB
- references/testing-unit-mocking.md 2.9 KB
- references/thymeleaf.md 3.2 KB
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.
- 11d ago First seen · 74 lines · 166 tokens per session scan A d2e46509edb3
spring-boot-skill is a skill published in the GitHub repository sivaprasadreddy/sivalabs-agent-skills (181 stars, last pushed 8d ago), licensed MIT. It adds 166 tokens to every session and 996 once invoked, about $0.0008 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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