Roblox MCP

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

With no annotations provided, the description carries full behavioral disclosure burden. While it lists actions like 'insert' and 'export', it does not clarify mutation safety, reversibility, rate limits for store searches, or file system side effects of export. The '[PRO]' tag suggests feature gating but is undefined.

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

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

The description is a single dense sentence that efficiently enumerates seven distinct capabilities without redundant filler. Every clause corresponds to an action mode. However, the unexplained '[PRO]' metadata tag and lack of punctuation separation between list items slightly hinder clarity.

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

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

For a complex multi-modal tool with 13 parameters, nested objects, 7 action variants, and no output schema or annotations, a single sentence is insufficient. The description omits success/failure behaviors, interaction between modes, and the nature of return values.

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

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

Input schema has 100% description coverage, establishing a baseline of 3. The description provides a high-level conceptual mapping of action enum values (e.g., 'insert models by ID') that mirrors the schema documentation but does not add syntax details, validation rules, or format specifications beyond what the schema already provides.

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

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

The description uses specific verbs (insert, get, search, export) with clear resources (models, asset info, Creator Store) and distinguishes from siblings like manage_animation or manage_audio by focusing on Roblox asset/store operations. However, the '[PRO]' prefix is unexplained and the colon-separated list format is less cohesive than a structured sentence.

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

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

The description lists available actions but provides no guidance on when to use specific actions (e.g., 'insert' vs 'insert_free' vs 'search_insert') or prerequisites (e.g., requiring asset IDs). No alternatives or exclusion criteria are mentioned.

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