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

Annotations already declare destructiveHint=true, idempotentHint=true and openWorldHint=true, so the safety profile is covered by structured data. The description does add one genuinely useful behavioral fact: removal means nulling the portal field rather than deleting portal content, which tells the agent the effect is narrow. It stops short of saying whether this is reversible via set_portal or what happens to portal members/routes.

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 short sentence with zero filler, front-loading the action and immediately qualifying it with the concrete effect. Nothing to trim.

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 one-parameter tool with a fully documented schema and annotations covering destructiveness and idempotency, the description is nearly sufficient. The only missing element an agent would want is what the resulting site state looks like / how to undo 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?

Single parameter with 100% schema description coverage ('Site id.'), so the schema carries full param documentation. The description adds no meaning beyond it — it never mentions that the call requires the site id — so baseline 3 applies.

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?

States a specific verb (remove/disable) and resource (portal on a site), plus the mechanism (sets portal to null). It does not name the sibling set_portal, which is the natural counter-operation, so an agent must infer the pairing.

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 on when to remove versus when to use set_portal, no prerequisites (e.g., a portal must already exist), and no statement about consequences. The agent gets the what but not the when or the alternative.

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