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 AdamBien/airails --skill java-cli-scriptgit clone --depth 1 https://github.com/AdamBien/airailsWrote 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/adambien/airails/java-cli-script)<a href="https://agentmods.dev/skills/adambien/airails/java-cli-script"><img src="https://agentmods.dev/badge/skills/adambien/airails/java-cli-script/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/adambien/airails/java-cli-script"><img src="https://agentmods.dev/badge/skills/adambien/airails/java-cli-script.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Privilege Escalation · line 160 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Privilege Escalation · line 162 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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 | $0.00105 | $0.02694 |
| Opus 5.5 | $0.00042 | $0.01078 |
| Sonnet 5.5 | $0.00021 | $0.00539 |
| Haiku 4.5 | $0.00011 | $0.00269 |
Grade B, and why
java-cli-script scanned grade B with 1 finding 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 2d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo cp scriptname /usr/local/bin/ How it starts
The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create or maintain a zero-dependency, single-file executable Java script using $ARGUMENTS. Apply all rules below strictly.
Purpose
These are self-contained, single-file Java scripts installed in a PATH directory (e.g., /usr/local/bin) and invoked like any shell command — no project structure, no build tool, no .java extension.
Composition
- Follow
/java-conventionsfor all generic Java 25 style, syntax, naming, methods, streams, exceptions, and comments - The rules below specialize
/java-conventionsfor single-file source-mode scripts; when this skill is silent on a topic,/java-conventionsapplies
Single-File Constraint
- Everything lives in one file — all logic, records, enums, sealed types, and helper methods
- When a script grows longer or more complex, apply BCE Layer Grouping before considering a switch — grouping extends single-file viability considerably
- Past roughly 1000 lines even a grouped single file fights the medium — suggest switching to the
java-cli-appskill, unless single-file deployment (copy one file to PATH, edit in place, no build) is the binding constraint - No multi-file source-code programs — this skill is strictly for single-file scripts
Build
- Use Java 25 source-file mode — no build tool, no compilation step
- Never use the
.javaextension — scripts are executable files with a lowercase filename and a shebang - Never use
--enable-previewin the shebang — Java 25 is a GA release, all features used here are standard - The shebang line is always:
#!/usr/bin/env -S java --source 25
- Save with a short, descriptive, lowercase command name (e.g.,
jsonformat,portcheck,sysinfo) - Never use dashes in filenames (e.g.,
hello-world) — Java source-file mode does not support them. Use camelCase instead (e.g.,helloWorld) - Mark executable:
chmod +x scriptname - Install by copying or symlinking to a PATH directory:
cp scriptname /usr/local/bin/orln -s $(pwd)/scriptname /usr/local/bin/scriptname
What ships with it
1 file 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.
- 2d ago Changed · +1 lines 814dbe1f8794
- 1mo ago Changed · +1 lines 251282e60735
- 1mo ago Changed · +26 lines 52b4539a5c46
- 1mo ago Changed · +1 lines b065d6547e58
- 1mo ago First seen · 164 lines · 105 tokens per session scan B f12dd6c8965f
java-cli-script is a skill published in the GitHub repository AdamBien/airails (58 stars, last pushed 3d ago), licensed MIT. It adds 105 tokens to every session and 2,694 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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