jmeter

jmeter is a skill for Claude Code from aks-builds/quality-skills. It costs 126 tokens per session (2,535 once invoked), scanned A, original, MIT.

Apache JMeter is a tool for load and performance testing, where many simulated users send requests to an application. Test plans are commonly saved as .jmx files and can be designed in a graphical interface or run without that interface.

In plain words
What is it for?
Use it to create or operate HTTP load tests, vary traffic with thread groups and ramp-up periods, add scripts or specialized samplers, and run distributed tests. It is often useful when an organization already has JMeter plans or needs its supported integrations.
Why use it?
It helps measure response times, throughput, and failures under increasing traffic, including for inherited test suites. Its graphical editor can help people who do not want to author all scenarios as code, though the plans can be cumbersome to maintain.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the quality-skills plugin — 57 skills shipped together

Good fit Use it to create or operate HTTP load tests, vary traffic with thread groups and ramp-up periods, add scripts or specialized samplers, and run distributed tests. It is often useful when an organization already has JMeter plans or needs its supported integrations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aks-builds/quality-skills/jmeter
Install

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.

Any agent
npx skills add aks-builds/quality-skills --skill jmeter
Clone the repo
git clone --depth 1 https://github.com/aks-builds/quality-skills

Made for: Claude Code.

Or install quality-skills, the plugin that ships this one along with the rest of its 57 skills.

Wrote 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.

agentmods badge for jmeter

README.md
[![agentmods](https://agentmods.dev/badge/skills/aks-builds/quality-skills/jmeter/github.svg)](https://agentmods.dev/skills/aks-builds/quality-skills/jmeter)
Your own site
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/jmeter"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/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.

agentmods 80×15 button for jmeter

Your own site · 80×15
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/jmeter"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/jmeter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 126 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,535 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00126 $0.02535
Opus 5 $0.00063 $0.01267
Sonnet 5 $0.00025 $0.00507
Haiku 4.5 $0.00013 $0.00253

Measured 9d ago against content hash 962685955854, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

jmeter scanned grade A 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 9d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

wget -q https://archive.apache.org/dist/jmeter/binaries/apache-jmeter-<version>.tgz
skills/jmeter/SKILL.md · 232 lines

How it starts

The opening of the file, as written. The whole thing — 232 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Apache JMeter

You are an expert in Apache JMeter for load and performance testing. Your goal is to help engineers maintain, evolve, and operate JMeter test plans — particularly when teams inherit existing .jmx files — while being honest about JMeter's strengths and the reasons many teams now choose k6/Gatling/Locust for new work. Don't fabricate Thread Group properties, JMeter functions, or CLI flags. When uncertain, point the reader to jmeter.apache.org.

Initial Assessment

Check .agents/qa-context.md (fallback: .claude/qa-context.md) before answering. Pay attention to:

  • Is this an existing JMeter suite, or a new project? — for greenfield, recommend evaluating k6/Gatling first unless there's a specific reason for JMeter (non-coder authors, organizational standard, specialized samplers like JMS / JDBC / mainframe).
  • JMeter version — 5.x is current. Major-version changes affected JSR223 scripting language defaults and listener performance.
  • Author audience — JMeter's GUI is a strength for non-coder testers. Engineers who write code daily often find JMeter's XML-based .jmx and GUI cumbersome.
  • Execution mode — local GUI (for design only — never load-test from the GUI), CLI non-GUI mode, distributed (controller + remote agents), or BlazeMeter/cloud.
  • Result handling — CSV summary, JTL files, dashboard generator, or Backend Listener to InfluxDB / Prometheus + Grafana.

If the file does not exist, ask: existing or new, target SLO, target environment, where load runs from, and what reporting is required.


Why JMeter

  • Mature, broad coverage — HTTP, HTTPS, JDBC, JMS, FTP, SOAP, gRPC (via plugin), LDAP, SMTP, TCP, mainframe protocols.
  • GUI-driven design — accessible to non-coder testers.
  • .jmx is XML, portable — same file runs anywhere JMeter does.
  • Distributed runs — built-in controller/agent topology.
  • Massive plugin ecosystem — JMeter Plugins Manager covers what core misses.

When not to use JMeter:

Read the full file on GitHub · 232 lines

Files

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.

Changes

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.

  1. 9d ago First seen · 232 lines · 126 tokens per session scan A 962685955854

Subscribe to this mod's changes

jmeter is a skill published in the GitHub repository aks-builds/quality-skills (2 stars, last pushed 6d ago), licensed MIT. It adds 126 tokens to every session and 2,535 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

test-case-writer

Use when someone asks to generate test cases, write test cases from a user story, create test cases from a BRD, design test cases from a mockup or wireframe, or produce a test case table from requirements.

ukkuru/testmetry-skills · 50 tokens

api-testing

API testing checks a software service directly through its endpoints, using OpenAPI or Swagger documentation or automated test cases. It can produce and run scripts that test requests and responses.

fishzjp/qa-skills · 102 tokens

automated-e2e-testing

A workflow for turning manual web-app test cases into Playwright end-to-end tests and running them. End-to-end tests check a complete user flow through the website.

fishzjp/qa-skills · 112 tokens

test-strategy

A method for deciding how a feature should be tested by turning risks into testing scope, depth, and priorities. TDD, or test-driven development, is not the focus here; this works at the system level through UI, API, manual, and specialist testing.

fishzjp/qa-skills · 94 tokens

regression-testing

A workflow for deciding which existing tests should run after a code change. Regression testing checks that a change has not broken features that already worked.

fishzjp/qa-skills · 94 tokens

exploratory-testing

A method for exploratory testing, where a tester learns an unfamiliar system while looking for risks instead of following only predefined test cases. It produces structured notes about the system, risks, test ideas, bugs, and unanswered questions.

fishzjp/qa-skills · 108 tokens