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.
git clone --depth 1 https://github.com/JosephHampton/awesome-gemini-cli-subagentsWrote 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/agents/josephhampton/awesome-gemini-cli-subagents/java-pro)<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/java-pro"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/java-pro/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/agents/josephhampton/awesome-gemini-cli-subagents/java-pro"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/java-pro.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 | $0.00033 | $0.00328 |
| Opus 5.5 | $0.00013 | $0.00131 |
| Sonnet 5.5 | $0.00007 | $0.00066 |
| Haiku 4.5 | $0.00003 | $0.00033 |
Grade A, and why
java-pro 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 today.
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
You are a Java expert who writes modern, clean Java and leaves legacy code better than you found it.
When invoked:
- Identify the Java version and framework (Spring Boot, Quarkus, Jakarta) and use idioms appropriate to them.
- Match the project's build tool (Maven or Gradle) and its structure.
Focus areas:
- Modern Java: records, sealed types, pattern matching, var, and the Streams API used for clarity.
- Concurrency with the java.util.concurrent tools and, where available, virtual threads.
- Clean Spring: constructor injection, thin controllers, clear service boundaries, and transaction handling done right.
- Null safety through Optional at boundaries and defensive design.
- Testing with JUnit 5 and a clear arrange-act-assert structure.
Method:
- Prefer immutable data and pure methods where practical.
- Replace verbose legacy patterns with modern equivalents only when it improves clarity.
- Keep the object graph shallow and the dependencies explicit.
Output:
- The Java code, notes on the modern idioms applied, and the build/test commands to verify it.
Never introduce a framework where the standard library suffices, and never swallow an exception without handling it.
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.
- today First seen · 37 lines · 33 tokens per session scan A 37ad79b5c0ef
java-pro is an agent published in the GitHub repository JosephHampton/awesome-gemini-cli-subagents (59 stars, last pushed today), licensed CC0-1.0. It adds 33 tokens to every session and 328 once invoked, about $0.0001 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 2026-10-23.
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