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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is covered. The description adds meaningful behavioral detail the annotations lack: what actually happens (portal set to null). However, it never resolves the 'remove vs disable' ambiguity it introduces, so it leaves a real question open.

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?

One short, front-loaded sentence with no waste. The only blemish is the ambiguous 'Remove/disable' pairing, which muddies rather than trims.

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 single-parameter mutation with full annotations and no output schema, this is minimally sufficient. It still leaves open whether the operation is reversible and whether 'disable' differs from 'remove', which an agent might care about given the destructive flag.

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?

Only one parameter and schema coverage is 100%, so the schema already documents 'id' fully ('Site id. Pass it on every call.'). The description adds nothing about the parameter, which is the expected baseline here.

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 ('the portal on a site') and even names the resulting state ('sets portal to null'). It is clearly distinguishable from siblings like set_portal or get_portal, though it doesn't explicitly name them.

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 on when to use this versus set_portal (to change) or get_portal (to inspect), and no prerequisites or warnings. The intended use can be inferred from the verb, but nothing is stated.

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