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Gamedev All-in-One MCP

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Roblox Search Instances

roblox_search_instances

Search for Roblox instances by name, class, or property value within a specified root path. Filter results to find specific objects in your game hierarchy.

Instructions

Search for instances by name, class, or property value under a root path.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
queryYesSearch query (matched against instance Name).
classNameNoFilter by ClassName.
rootPathNoRoot instance path to search within.game
maxResultsNoMaximum number of results to return.
waitForResponseMsNoHow long to wait for a runtime response.
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. It does not state that this is a read-only operation, how errors are handled (e.g., invalid rootPath), or any other behavioral traits. The agent cannot infer safety or side effects.

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

Conciseness3/5

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

The description is a single sentence, concise and to the point. However, it lacks essential information for a tool with 5 parameters and many siblings. It earns a 3 for conciseness but is incomplete.

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?

For a search tool with no output schema and many siblings, the description is too sparse. It does not mention return format, result structure, pagination, or error handling. The agent is left with many unknowns.

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

Parameters2/5

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 parameters. The description adds a misleading claim about property value and does not provide any additional context (e.g., syntax, formatting, or relationships between parameters). It fails to add value beyond the schema.

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

Purpose3/5

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

The description states the tool searches for instances by name, class, or property value under a root path. However, the input schema does not include a parameter for property value, making the description partially inaccurate. The verb and resource are clear, but the claim about property value is misleading.

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 the many other Roblox search tools (e.g., roblox_search_asset3d, roblox_search_toolbox). There is no mention of context, exclusions, or alternatives.

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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