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

With no annotations, the description carries full behavioral disclosure burden. It hints the tool is informational ('Explains') but does not clarify whether calling it actually requests or issues a scoped token, what the response looks like, or whether any side effects or authentication prerequisites exist.

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, direct sentence with no filler. The core idea is front-loaded and the description is appropriately sized for the tool's simplicity.

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?

For a 0-parameter tool, the description gives the gist but leaves uncertainty about output format and whether the tool actually performs the request or merely provides instructions. An agent could not confidently predict the result of invoking it.

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 tool has zero parameters and schema coverage is 100%, so there is nothing for the description to add beyond what the schema already shows. Baseline for zero params is 4.

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 action ('Explains the private access tier') and object ('how to request a scoped token'), which distinguishes it from the sibling data-retrieval tools. However, the tool name 'request_private_access' implies an actual request action while the description says 'explains', creating slight ambiguity about whether it performs the request or only describes it.

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 explicit when-to-use guidance or comparison to alternatives is provided. From the sibling names, an agent can infer this is the only non-data-retrieval tool, but the description never states when an agent should call this versus using existing access or another tool.

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