Bulk route numbers to a trunk

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

Annotations show idempotentHint=true, destructiveHint=false. Description adds idempotent at SQL level and lists error codes, consistent with annotations. No mention of rollback or side effects, but idempotency implies safety.

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?

Two concise sentences front-load the core action and usage context, with no extraneous content.

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 no output schema and straightforward batch operation, description covers purpose, usage, and error conditions adequately. Could mention batch limit, but maxItems in schema covers that.

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 covers 100% of parameters with descriptions. The description does not add meaning beyond schema; 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 it assigns up to 200 HELD numbers to a single voice trunk-group in one request, with idempotency noted. It distinguishes from siblings num_bulk_order and num_update_voice.

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?

Explicitly states when to use: after num_bulk_order to bring purchased numbers into service, or to re-home existing numbers. Advises using num_update_voice for per-number routing.

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