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DmitriyGolub

threejs-devtools-mcp

by DmitriyGolub

dispose_check

Read-onlyIdempotent

Detect memory leaks in Three.js scenes by identifying orphaned geometries, textures, and hidden objects that are still tracked by the renderer.

Instructions

Find potential memory leaks: orphaned geometries/textures not in scene but tracked by renderer, hidden objects with geometry

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds valuable context about scanning for orphaned resources and hidden objects, enhancing transparency without contradicting annotations.

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, front-loaded sentence that efficiently conveys the tool's purpose and scope. No unnecessary words or redundancy.

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?

The description tells what the tool finds but does not explain the output format (e.g., list of items, severity levels). Without an output schema, this missing detail reduces completeness for an agent deciding whether to invoke.

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

Parameters4/5

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

No parameters exist (schema coverage 100%). With zero params, baseline is 4, and the description does not need to add param info. No further meaning required.

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's purpose: 'Find potential memory leaks'. It specifies the types of leaks (orphaned geometries/textures, hidden objects) making it distinct from other tools like memory_stats or object_details.

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

Usage Guidelines3/5

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

The description implies usage for detecting memory leaks but does not provide explicit guidance on when to use versus alternatives like memory_stats or object_details. No exclusions or preconditions mentioned.

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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