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 giuseppe-trisciuoglio/developer-kit --skill spring-boot-dependency-injectiongit clone --depth 1 https://github.com/giuseppe-trisciuoglio/developer-kitWrote 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/giuseppe-trisciuoglio/developer-kit/spring-boot-dependency-injection)<a href="https://agentmods.dev/skills/giuseppe-trisciuoglio/developer-kit/spring-boot-dependency-injection"><img src="https://agentmods.dev/badge/skills/giuseppe-trisciuoglio/developer-kit/spring-boot-dependency-injection/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/giuseppe-trisciuoglio/developer-kit/spring-boot-dependency-injection"><img src="https://agentmods.dev/badge/skills/giuseppe-trisciuoglio/developer-kit/spring-boot-dependency-injection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk 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 | $0.00052 | $0.01288 |
| Opus 5 | $0.00026 | $0.00644 |
| Sonnet 5 | $0.00010 | $0.00258 |
| Haiku 4.5 | $0.00005 | $0.00129 |
Grade A, and why
spring-boot-dependency-injection 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 yesterday.
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 — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Boot Dependency Injection
Overview
Provides constructor-first dependency injection patterns for Spring Boot:
- mandatory collaborators via constructor injection
- optional collaborators via
ObjectProvideror no-op fallbacks - bean selection via
@Primaryand@Qualifier - validation via minimal context tests before full integration
When to Use
Use this skill when:
- creating a new
@Service,@Component,@Repository, or@Configurationclass - replacing field injection in legacy Spring code
- resolving multiple beans of the same type with qualifiers or primary beans
- handling optional features, adapters, or integrations without null-driven wiring
- reviewing circular dependencies or brittle context startup failures
- preparing code for direct constructor-based unit testing
Instructions
1. Separate mandatory and optional collaborators
For each class, identify:
- mandatory collaborators required for correct behavior
- optional collaborators that enable integrations, caching, notifications, or feature-flagged behavior
Mandatory collaborators belong in the constructor. Optional ones need an explicit strategy such as ObjectProvider, conditional beans, or a no-op implementation.
2. Default to constructor injection
For application services and adapters:
- inject mandatory dependencies through the constructor
- keep injected fields
final - instantiate the class directly in unit tests without starting Spring
A single constructor is usually enough; @Autowired is unnecessary in that case.
3. Resolve optional behavior intentionally
Good options include:
ObjectProvider<T>when lazy access is useful@ConditionalOnPropertyor@ConditionalOnMissingBeanwhen wiring should change by configuration- a no-op implementation when the caller should not care whether the feature is enabled
Avoid nullable collaborators that leave runtime behavior ambiguous.
4. Use bean selection annotations only when needed
When multiple beans share the same type:
- use
@Primaryfor the default implementation - use
@Qualifierfor named variants - keep the qualifier names stable and easy to grep
What ships with it
3 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.
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.
- yesterday First seen · 190 lines · 52 tokens per session scan A 1490386566fd
spring-boot-dependency-injection is a skill published in the GitHub repository giuseppe-trisciuoglio/developer-kit (344 stars, last pushed 2d ago), licensed MIT. It adds 52 tokens to every session and 1,288 once invoked, about $0.0003 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 2026-09-10.
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