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Linux Kernel & OS Tuning for Load Injectors

tune_linux_os

Generate production sysctl.conf, limits.conf, systemd overrides, and Docker/K8s configs tuned for high-concurrency JMeter load testing (fixing ulimit nofile, BindException port exhaustion, somaxconn backlog, and JVM swappiness).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
roleNoMachine role: "injector" (JMeter client) or "target_sut" (default: "injector").
ramGbNoHost machine RAM in GB for TCP buffer sizing (default: 16).
concurrencyNoTarget concurrent connections/threads (default: 10000).
trafficTypeNoTraffic profile (default: "http_churn").
targetDistroNoLinux distro or container target (default: "ubuntu_debian").

TDQS

B3.2/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description is the sole source for behavioral disclosure. It states 'generate' but does not clarify whether the output is written to files, printed to stdout, or if the tool requires elevated permissions. No side effects or prerequisites are mentioned, leaving the agent uncertain about the tool's execution model.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence that lists the primary output and the problems it solves. There is no unnecessary filler or redundancy, making it highly efficient and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the absence of an output schema and annotations, the description must fully explain the tool's behavior. It does not clarify the return format (e.g., a combined text block, multiple files, or a configuration object) or whether the tool actually modifies the system. This missing information leaves the agent with incomplete context for effective use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema descriptions cover all parameters (role, ramGb, concurrency, trafficType, targetDistro) clearly. The description adds no extra meaning to these parameters, but the existing schema is sufficient. Since schema coverage is 100%, the baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool generates specific config files (sysctl.conf, limits.conf, systemd overrides, Docker/K8s configs) for high-concurrency JMeter load testing, and lists the concrete issues it addresses (ulimit nofile, port exhaustion, etc.). This distinguishes it from sibling tools that handle other aspects like workload calculation or documentation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not provide any guidance on when to use this tool over alternatives. It lacks situational context or comparisons with sibling tools (e.g., calculate_workload_model, plan_distributed_testing) that might be relevant for similar tasks.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

A4/5.0
Disambiguation5/5

Each tool addresses a clearly distinct need: conversion, validation, workload math, distributed planning, OS tuning, docs search/page retrieval, error lookup, property lookup, and script recipes. Even the doc-related tools are complementary: search returns links, while get_jmeter_page fetches full content.

Naming Consistency5/5

All tool names follow a consistent lowercase snake_case verb_noun pattern: calculate_, convert_, get_, lint_, lookup_, plan_, search_, tune_. The verbs clearly signal the action and the nouns clearly signal the target, making the set predictable.

Tool Count5/5

Ten tools is well-scoped for a JMeter-specific MCP server. Each tool targets a meaningful area: test plan generation, validation, workload modeling, distributed execution, OS tuning, documentation, and troubleshooting. None feel redundant or superfluous.

Completeness4/5

The surface covers the main JMeter workflow: converting HTTP input to JMX, linting it, fetching scripting recipes, planning distributed runs, tuning the OS, and researching docs/errors. A minor gap is the lack of a general raw JMX builder or meaningful coverage for non-HTTP protocols, but most practical JMeter use cases are addressed.

Resources