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

No annotations are present, so the description carries the full behavioral burden. 'Read' conveys non-mutating behavior and the status phrase defines the core output, but the description does not disclose error behavior, permissions, or whether the response includes fields beyond acceptance status.

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?

A single compact sentence with the action verb front-loaded and no filler. It states the resource and the distinctive status output without redundancy.

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?

The tool is a simple two-parameter GET with complete schema coverage, so the main gap is the return shape. The description partially covers this by mentioning acceptance status, but with no output schema it does not fully describe response fields or 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?

Schema coverage is 100%, with both inbox_id and organization_id already described. The description adds no additional semantic context about parameter formats, relationships, or ownership, so it does not improve on the schema.

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 opens with 'Read one receiving address' – a specific verb and resource – and adds the key status trait 'whether it is still accepting mail.' This clearly differentiates it from sibling tools like commsharbor_inboxes (plural listing), commsharbor_inbox_disable (mutation), and commsharbor_inbox_messages (message content).

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?

No guidance is given on when to use this tool versus commsharbor_inboxes, commsharbor_inbox_disable, or commsharbor_inbox_messages. There are no explicit preconditions, exclusions, or alternative routing instructions; usage context is only weakly implied by the word 'one.'

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