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

Annotations already declare destructiveHint=true and openWorldHint=false, so the description only needs to add context. It adds that the action affects one holder and implies the closure can be restored by asking, but it does not explain permissions, what exactly stops working, or how confirmation should be handled.

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 short and front-loads the core action. However, the second sentence is awkward and poetic without adding clear operational value, so not every sentence earns its place.

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 destructive access-revocation tool with two parameters, the description omits important invocation context such as confirmHolder semantics, required permissions, and the effect on the holder's existing access. The output schema reduces the need to explain return values, but the description remains thin for a mutation tool.

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 description adds no parameter-specific meaning. The schema only partially covers the two parameters: grantId is a UUID wrapper, while confirmHolder is undocumented, and the description does not compensate by explaining what confirmHolder should contain or why it exists.

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 first sentence states a specific verb and resource: closing/revoking data room access for one holder. It is distinguishable from the grant sibling by the revoke/close action, but the second sentence's analogy to revoking a memo link is vague and does not sharpen sibling differentiation.

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 says to close access 'now' but gives no explicit when-to-use or when-not-to-use guidance. It mentions revoking a memo link as an analogy rather than naming it as a relevant alternative or prerequisite path.

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