Create Live Call Router

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

The annotations already declare this as a non-read-only, open-world, non-idempotent, non-destructive operation. The description adds no behavioral context beyond 'from provided data'—it does not mention side effects, required permissions, phone-number prerequisites, or what happens when the router is enabled.

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, which is structurally efficient. However, for a complex create operation with many nested configuration options, it is under-specified rather than appropriately concise.

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?

This is a complex creation tool with nested paging targets, phone routing options, and a referenced phone-number generation prerequisite. The description does not explain those dependencies, the creation context, or when this tool should be selected, leaving it incomplete despite having annotations and an output schema.

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 description only says 'from provided data' and does not explain the single top-level data parameter or its required nested attributes. Although the nested schema contains field descriptions, the tool description itself adds no semantic meaning beyond the parameter name.

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 states a specific verb and resource: it creates a new Live Call Router. It is clear what the tool does, but it does not distinguish this create operation from sibling tools such as get_live_call_router, list_live_call_routers, or update_live_call_router.

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 gives no guidance on when to use this tool versus alternatives or when not to use it. It also omits prerequisites, such as whether a phone number must first be generated before creating the router.

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