Get Voice Call Event

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

Annotations readOnlyHint=true and openWorldHint=true already convey the read-only nature. The description adds the REST endpoint path, but no additional behavioral details such as error handling, response format, or side effects. It does not contradict annotations but adds minimal value beyond them.

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, front-loaded sentence with the endpoint and a clear purpose. There is no redundancy or wasted words.

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 (1 parameter, no output schema), the description is adequate for an agent to understand the operation. It identifies the resource and the identifying parameter, though it does not specify return structure or potential error conditions.

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 input schema provides 100% description coverage for the id parameter, and the description repeats the notion of a unique identifier without adding further constraints, format, or examples. The baseline of 3 applies because the schema is fully documented.

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 it retrieves a single voice call event by its unique identifier, using a specific verb ('retrieve') and naming the resource ('voice call event'). It distinguishes from siblings like list_voice_call_events and get_voice_call by specifying 'single' and 'event'.

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 implies use when you have a unique identifier for a voice call event, but it does not explicitly state when to use this versus list_voice_call_events or get_voice_call. No alternatives or exclusions are mentioned; the context is clear but not explicit.

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