update_calling_settings

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

No annotations are provided, so the description carries the full burden. 'Update' implies mutation, but there is no disclosure of side effects, destructive potential, permission requirements, or any other behavioral context. The description is entirely opaque about what happens when calling it.

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 under-specified rather than concise. 'Update calling settings' repeats essentially the tool name and offers no additional context, making it analogous to a tautology in substance. It does not earn its place with useful information.

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 mutation tool with a nested free-form payload and no annotations or output schema. The description provides none of the necessary context about what settings, constraints, or resulting behavior to expect. It is completely inadequate for safe invocation.

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 only parameter is 'payload', a free-form object with propertyNames and additionalProperties but no semantic description. Schema coverage is 0%, and the description adds no meaning to the payload structure. With a low-coverage schema, the description should compensate but does not.

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 'Update calling settings' clearly states the verb (update) and resource (calling settings), which distinguishes it from the sibling tool get_calling_settings. However, it lacks any scope detail about which calling settings can be updated, so it stops short of a 5.

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. There is no mention of prerequisites, when not to use it, or any comparison to get_calling_settings. This is a clear case of no guidance.

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