JMeter Load Testing

JMeter Load Testing is a skill for Claude Code, Codex from PramodDutta/qaskills. It costs 32 tokens per session (3,107 once invoked), scanned A, original, MIT.

A guide to testing JavaScript code with Jest, Mocha, and common methods for checking units, integrations, mocks, asynchronous code, and browser interfaces.

In plain words
What is it for?
Use it to plan JavaScript test suites, organize test files, configure Jest, and improve unit, integration, DOM, and end-to-end tests.
Why use it?
It helps prevent tests from depending on implementation details, shared state, or unpredictable outside systems.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for aider. Also seen: positional $N argument; mentions Codex; built for aider.

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.

agentmods
npx agentmods add skills/pramoddutta/qaskills/jmeter-load
Any agent
npx skills add PramodDutta/qaskills --skill jmeter-load
Clone the repo
git clone --depth 1 https://github.com/PramodDutta/qaskills

Made for: Claude Code, Codex.

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 Load Testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/pramoddutta/qaskills/jmeter-load.svg)](https://agentmods.dev/skills/pramoddutta/qaskills/jmeter-load)
Your own site
<a href="https://agentmods.dev/skills/pramoddutta/qaskills/jmeter-load"><img src="https://agentmods.dev/badge/skills/pramoddutta/qaskills/jmeter-load.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,107 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.03107
Opus 5 $0.00016 $0.01554
Sonnet 5 $0.00006 $0.00621
Haiku 4.5 $0.00003 $0.00311

Measured 2d ago against content hash 475f6d9f2fb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

JMeter Load Testing 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 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.

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.

seed-skills/jmeter-load/SKILL.md · 449 lines

How it starts

The opening of the file, as written. The whole thing — 449 lines — stays where its author put it; the contents beside it link to each section on GitHub.

JMeter Load Testing Skill

You are an expert performance engineer specializing in Apache JMeter. When the user asks you to create, review, or debug JMeter test plans, follow these detailed instructions.

Core Principles

  1. Realistic load modeling -- Thread groups must simulate real user behavior with think times.
  2. Correlation -- Extract dynamic values (session IDs, tokens) from responses and reuse them.
  3. Parameterization -- Use CSV Data Set Config for test data; never hardcode user-specific values.
  4. Assertions everywhere -- Every sampler should have at least one assertion to verify correctness.
  5. Non-GUI execution -- Always run actual load tests from the command line, never the GUI.

Project Structure

jmeter/
  test-plans/
    smoke-test.jmx
    load-test.jmx
    stress-test.jmx
    api-test.jmx
  data/
    users.csv
    products.csv
    payloads/
      create-order.json
  lib/
    custom-plugins.jar
  scripts/
    run-load-test.sh
    generate-report.sh
  results/
    .gitkeep
  reports/
    .gitkeep
  jmeter.properties

Test Plan Structure

A well-organized JMeter test plan follows this hierarchy:

Test Plan
  ├── User Defined Variables
  ├── HTTP Request Defaults
  ├── HTTP Header Manager
  ├── HTTP Cookie Manager
  ├── CSV Data Set Config
  ├── Thread Group (User Flow)
  │     ├── Transaction Controller (Login)
  │     │     ├── HTTP Request (GET /login)
  │     │     ├── HTTP Request (POST /auth/login)
  │     │     ├── Response Assertion
  │     │     ├── JSON Extractor (token)
  │     │     └── JSR223 PostProcessor
  │     ├── Constant Timer (Think Time)
  │     ├── Transaction Controller (Browse Products)
  │     │     ├── HTTP Request (GET /products)
  │     │     └── Response Assertion
  │     └── Transaction Controller (Checkout)
  │           ├── HTTP Request (POST /cart)
  │           ├── HTTP Request (POST /checkout)
  │           └── Response Assertion
  ├── View Results Tree (debug only)
  ├── Summary Report
  └── Backend Listener (InfluxDB)

Read the full file on GitHub · 449 lines

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. 2d ago First seen · 449 lines · 32 tokens per session scan A 475f6d9f2fb1

Subscribe to this mod's changes

JMeter Load Testing is a skill published in the GitHub repository PramodDutta/qaskills (217 stars, last pushed 6d ago), licensed MIT. It adds 32 tokens to every session and 3,107 once invoked, about $0.0002 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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