get_services
List available SMS services to find a virtual number for receiving verification codes.
Instructions
Get list of available services
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
List available SMS services to find a virtual number for receiving verification codes.
Get list of available services
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must carry the full burden of behavioral disclosure. It only states 'Get list' without revealing return format, pagination, ordering, or authentication requirements. The read-only nature is implied but not explicitly stated, and no additional behavioral traits are disclosed.
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 with no unnecessary words. It is appropriately front-loaded and concise, conveying the core purpose efficiently. Every word contributes to the meaning.
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?
Given the tool's simplicity (no parameters, no output schema, no annotations), the description is minimally adequate but not rich in context. It would benefit from stating the return format (e.g., array of strings) or any usage constraints. For a simple getter, the missing output schema makes the description incomplete.
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 tool has zero parameters, and schema coverage is 100% (vacuously). The description does not need to explain parameters, and the baseline for zero-param tools is 4. It does not add anything beyond the schema, but none is required.
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 action (Get list) and the resource (available services), making it specific and easily distinguishable from sibling tools like get_balance or get_status. It uses a specific verb+resource construction that leaves no ambiguity about the tool's function.
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 does not explicitly mention when to use this tool versus alternatives, but the uniqueness of the resource ('services') among siblings implies its usage. There is no explicit guidance on exclusions or when-not-to-use, so it only meets the 'implied usage' level.
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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