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 jabrena/plinth --skill 151-java-performance-jmetergit clone --depth 1 https://github.com/jabrena/plinthWrote 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/jabrena/plinth/151-java-performance-jmeter)<a href="https://agentmods.dev/skills/jabrena/plinth/151-java-performance-jmeter"><img src="https://agentmods.dev/badge/skills/jabrena/plinth/151-java-performance-jmeter/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/jabrena/plinth/151-java-performance-jmeter"><img src="https://agentmods.dev/badge/skills/jabrena/plinth/151-java-performance-jmeter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector 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 | $0.00114 | $0.00763 |
| Opus 5 | $0.00057 | $0.00381 |
| Sonnet 5 | $0.00023 | $0.00153 |
| Haiku 4.5 | $0.00011 | $0.00076 |
Grade A, and why
151-java-performance-jmeter 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 7d 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 — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Run performance tests based on JMeter
Provide a complete JMeter performance testing solution by creating the run-jmeter.sh script from the exact template, making it executable, and configuring the project structure for load testing. Supports custom loops, threads, ramp-up, and environment variable overrides.
What is covered in this Skill?
- Create run-jmeter.sh in project root from the exact template (no modifications)
- Project structure: src/test/resources/jmeter/load-test.jmx, target/ for results
- Script options: -l (loops), -t (threads), -r (ramp-up), -g (GUI), -h (help)
- Environment variables: JMETER_LOOPS, JMETER_THREADS, JMETER_RAMP_UP
- Verify JMeter is installed and available before proceeding
Scope: Copy the script template verbatim. Do not modify, interpret, or enhance the template content.
Constraints
JMeter must be installed and available in PATH. If not available, show a message and exit. Use only the exact template for the run-jmeter.sh script.
- PREREQUISITE: Verify JMeter is installed and accessible via
jmeter --versionbefore creating the script - CRITICAL: Copy the run-jmeter.sh template exactly — do not modify, interpret, or enhance
- PERMISSION: Make the script executable with
chmod +x run-jmeter.sh - BEFORE APPLYING: Read the reference for the exact script template and usage instructions
- EDGE CASE: If request scope is ambiguous, stop and ask a clarifying question before applying changes
- EDGE CASE: If required inputs, files, or tooling are missing, report what is missing and ask whether to proceed with setup guidance
When to use this skill
- Improve the code with JMeter performance testing
- Apply JMeter performance testing
- Refactor the code with JMeter performance testing
- Add JMeter support
- Create a JMeter test plan for a Java service
Workflow
- Verify JMeter prerequisite
Check jmeter --version and stop with guidance if JMeter is not installed or not available in PATH.
What ships with it
2 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.
- 7d ago First seen · 63 lines · 114 tokens per session scan A 560017df0f19
151-java-performance-jmeter is a skill published in the GitHub repository jabrena/plinth (438 stars, last pushed yesterday), licensed Apache-2.0. It adds 114 tokens to every session and 763 once invoked, about $0.0006 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 2026-09-03.
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