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 agentmods add skills/arconia-io/agent-skills/spring-boot-devnpx skills add arconia-io/agent-skills --skill spring-boot-devgit clone --depth 1 https://github.com/arconia-io/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/arconia-io/agent-skills/spring-boot-dev)<a href="https://agentmods.dev/skills/arconia-io/agent-skills/spring-boot-dev"><img src="https://agentmods.dev/badge/skills/arconia-io/agent-skills/spring-boot-dev.svg" alt="Measured on agentmods" 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 | $0.00091 | $0.00896 |
| Opus 5 | $0.00046 | $0.00448 |
| Sonnet 5 | $0.00018 | $0.00179 |
| Haiku 4.5 | $0.00009 | $0.00090 |
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 5d 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 — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Boot Development
Use Arconia CLI to build, test, and run Spring Boot applications. Arconia CLI auto-detects Maven or Gradle — you never specify the build tool.
Run the application in development mode
arconia dev
This starts the app with the dev Spring profile active. If the project uses
Arconia Dev Services, external services (databases, message brokers, AI
inference servers, etc.) are provisioned automatically — no configuration needed.
Use --test (-t) only if the project relies on Spring Boot's native
Testcontainers approach (a TestApplication class in src/test). If the
project uses Arconia Dev Services, plain arconia dev is correct.
arconia dev --test
Build the application
arconia build
Options:
| Flag | Effect |
|---|---|
--clean |
Remove previous build output first |
--skip-tests |
Skip tests during the build |
--native |
Produce a GraalVM native executable instead of a JAR |
--offline |
Build without network access |
Build a GraalVM native executable:
arconia build --native
Build output locations
| Build type | Gradle | Maven |
|---|---|---|
| JVM JAR | build/libs/ |
target/ |
| Native executable | build/native/nativeCompile/ |
target/ |
Run tests
arconia test
Options:
| Flag | Effect |
|---|---|
--clean |
Clean before testing |
--native |
Run tests in GraalVM native mode |
--offline |
Test without network access |
Run a specific test class:
# Gradle
arconia test -- --tests "*BookServiceTests"
# Maven
arconia test -- -Dtest=BookServiceTests
If the project uses Arconia Dev Services, integration tests automatically get
external services provisioned — no @Import annotations or configuration
classes required.
Pass extra arguments to the build tool
Use -- to forward arguments to the underlying Maven or Gradle command:
arconia build -- --stacktrace
arconia test -- -DmyProperty=value
arconia dev -- -Dspring.profiles.active=staging
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.
- 5d ago First seen · 123 lines · 91 tokens per session scan A 038228f66906
spring-boot-dev is a skill published in the GitHub repository arconia-io/agent-skills (2 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 91 tokens to every session and 896 once invoked, about $0.0005 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 2026-08-31.
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