get_services

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

No annotations are provided, so the description must carry the full burden. The word 'Get' implies a read-only operation, but the description does not disclose permissions, failure modes, or the meaning of 'children'. No side effects or prerequisites are mentioned.

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 concise sentence that is front-loaded and free of fluff. It efficiently states the purpose but could be enriched with additional useful context without becoming verbose.

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 simple getter with one optional parameter and no output schema, the description gives an adequate overview of what will be returned (services and their children). It does not explain potential errors, what 'available' means, or the exact structure of the response, but given the tool's simplicity, this is acceptable.

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?

The single parameter 'serviceName' is fully described in the schema with 100% coverage, so the description does not need to reiterate it. However, the description also does not add any insight beyond the schema, such as how the parameter filters results or what happens if it's omitted.

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 tool retrieves 'available Roblox services and their children', specifying a concrete resource. It does not explicitly distinguish it from sibling tools like get_instance_children, but the resource type (services) is unique enough to be understood.

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 provides no guidance on when to use this tool versus alternatives like get_instance_children or get_descendants. It simply states what it does without mentioning context, exclusions, or alternative tools.

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