Skip to main content
Glama
RealSlimShady2000

Roblox Executor MCP Server

Search for instances in the game

search-instances

Search Roblox instances using QueryDescendants selector syntax to filter by class, name, tag, property, and attribute from a chosen root.

Instructions

Search Roblox instances with QueryDescendants selector syntax. Use for class, name, tag, property, and attribute queries against a chosen root.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
rootNoThe root instance to search from (e.g., 'game.Workspace', 'game.ReplicatedStorage'). Defaults to 'game' if not specified.game
limitNoMaximum number of results to return (default: 50, to avoid overwhelming output)
selectorYesSelector string to filter instances. Supports classes (Part), tags (.Tagged), names (#HumanoidRootPart), properties ([CanCollide = false]), attributes ([$QuestId] or [$Health = 100]), child/descendant combinators (> and >>), OR selectors (,), :not(), and :has(); chain selectors for AND logic, e.g. Part.Tagged[Anchored = false].
Behavior2/5

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

With no annotations provided, the description carries full burden but only describes the action. It does not disclose any behavioral traits such as read-only nature, side effects, permissions needed, or performance characteristics.

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 concise with two sentences, front-loading the core functionality. However, it could be more structured with bullet points or clearer separation of details.

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 no output schema and moderate complexity of selector syntax, the description is adequate but lacks information about return format or potential edge cases. It provides enough for basic understanding but could be more complete.

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 coverage is 100%, so the schema already documents all three parameters in detail. The description adds a high-level summary of the selector syntax but does not provide additional meaning beyond the schema's property descriptions.

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 it searches Roblox instances using QueryDescendants selector syntax, and lists supported query types (class, name, tag, property, attribute). However, it does not explicitly differentiate from sibling search tools like 'semantic-search-scripts' or 'gc-search'.

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 specific queries against a chosen root, but provides no guidance on when not to use it or alternatives. No explicit context or exclusions are given.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/RealSlimShady2000/exploitMCP420Edition'

If you have feedback or need assistance with the MCP directory API, please join our Discord server