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ebadAhmed10

JMeter MCP Server

by ebadAhmed10

generate_visualization

Create visual charts and reports from JMeter test results to analyze performance data and identify bottlenecks.

Instructions

Generate visualizations of JMeter test results.

Args: jtl_file: Path to the JTL file containing test results visualization_type: Type of visualization to generate (time_series, distribution, comparison, html_report) output_file: Path to save the visualization

Returns: str: Path to the generated visualization file

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
jtl_fileYes
visualization_typeYes
output_fileYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions generating visualizations and returning a file path, but lacks details on permissions, file system interactions, error handling, or performance characteristics. For a tool with 3 parameters and no annotation coverage, this is a significant gap.

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

Conciseness4/5

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

The description is well-structured and appropriately sized. It starts with a clear purpose statement, followed by parameter and return value sections. Each sentence adds value without redundancy. Minor improvements could include briefer formatting, but it's efficient overall.

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

Completeness3/5

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

Given 3 parameters with 0% schema coverage and no annotations, the description provides basic parameter semantics and mentions the return value. However, it lacks behavioral context (e.g., side effects, error cases) and doesn't fully compensate for the missing schema details. The output schema exists, so return values are covered, but overall completeness is moderate.

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?

Schema description coverage is 0%, so the schema provides no parameter details. The description compensates by listing all 3 parameters with brief explanations (e.g., 'Path to the JTL file', 'Type of visualization to generate'). However, it doesn't elaborate on allowed values for 'visualization_type' or file format expectations, leaving gaps.

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

Purpose4/5

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

The description clearly states the tool's purpose: 'Generate visualizations of JMeter test results.' It specifies the verb ('generate') and resource ('visualizations of JMeter test results'), making it easy to understand what the tool does. However, it doesn't explicitly differentiate from sibling tools like 'analyze_jmeter_results' or 'get_performance_insights', which might also involve result processing.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'analyze_jmeter_results' or 'get_performance_insights', nor does it specify prerequisites (e.g., needing a JTL file from a completed test). Usage is implied but not explicitly stated.

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