Roblox Set Property

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

With no annotations, the description must fully disclose behavior. It only states mutation ('set') but omits details such as whether properties are overwritten, atomicity, handling of nonexistent properties, permission requirements, or side effects. The waitForResponseMs parameter hints at asynchronous behavior, but this is not described.

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 sentence that is very concise and front-loaded with the purpose. However, it sacrifices behavioral detail for brevity, which is a minor drawback.

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 tool with 3 parameters, no output schema, and no annotations, the description is minimal. It covers the basic purpose but lacks complete context such as prerequisites, effects, or return behavior. It is adequate but has clear gaps.

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?

Schema coverage is 100% and the schema descriptions already adequately explain the parameters. The tool description adds no additional semantic value beyond what the schema provides. Baseline of 3 is appropriate.

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 clearly states the verb 'Set' and the resource 'one or more properties on a Roblox instance'. It is specific and distinguishes from sibling tools like roblox_set_gravity and roblox_set_physics which target specific properties.

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?

No guidance on when to use this tool versus sibling tools that set specific properties (e.g., roblox_set_gravity, roblox_set_physics). No prerequisites or context for appropriate usage are provided.

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