exchange_get_cas_mailbox

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It indicates a read operation by saying 'Get,' but it does not explain return format, error behavior, authentication requirements, or any side effects. This is minimal behavioral context for an agent invoking the tool.

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 short sentence with no redundant words. The main purpose is front-loaded, and the parenthetical adds useful specificity. It is concise and well-structured for the amount of information it conveys.

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?

With no annotations, no output schema, and an undocumented parameter, the description is too sparse to fully prepare an agent to invoke the tool correctly. It lacks key operational details such as identity format, response behavior, and when this tool should be selected over similar getter tools.

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 schema has one parameter, 'identity', with no description, and schema description coverage is 0%. The description does not explain what format identity should take (e.g., email address, alias, GUID) or how it relates to the mailbox. The parameter is somewhat inferable from context, but the description does not compensate for the missing schema documentation.

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 names a specific verb ('Get'), a specific resource ('Client Access mailbox settings'), and the relevant protocols ('ActiveSync, OWA, MAPI'), which distinguishes it from general mailbox getters like exchange_get_mailbox. It does not explicitly differentiate from a sibling, but the parenthetical clarifies the tool's focus well.

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?

There is no guidance about when to use this tool versus alternatives such as exchange_get_mailbox or exchange_get_virtual_directory. The description implies a use case through its purpose, but it never states conditions, prerequisites, or exclusions, leaving the agent to guess when this tool is the right choice.

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