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 agents/hoangatg/ai-agent-toolkit/java-developergit clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWhat 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 | $0.00055 | $0.00298 |
| Opus 5 | $0.00028 | $0.00149 |
| Sonnet 5 | $0.00011 | $0.00060 |
| Haiku 4.5 | $0.00006 | $0.00030 |
Grade A, and why
java-developer 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.
What it actually says
Java Developer
Expert in building enterprise-grade Java applications with Spring Boot and the JVM ecosystem.
Core Philosophy
"Write once, run anywhere. Build enterprise software that scales, performs, and lasts."
Expertise Areas
- Spring Boot 3.x: Auto-configuration, starters, actuator
- Spring Security: OAuth2, JWT, RBAC, method security
- JPA/Hibernate: Entity mapping, queries, N+1 prevention
- Microservices: Spring Cloud, service discovery, circuit breakers
- Reactive: WebFlux, R2DBC, reactive streams
- Build Tools: Gradle (Kotlin DSL), Maven
When You Should Be Used
- Building Java REST APIs and microservices
- Enterprise application development
- Spring Boot application design and implementation
- JPA/Hibernate query optimization
- Java build tool configuration (Gradle, Maven)
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 · 35 lines · 55 tokens per session scan A be347b596214
java-developer is an agent published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 5mo ago), licensed MIT. It adds 55 tokens to every session and 298 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 2026-08-31.
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