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

Annotations already declare destructiveHint=true, and the description reinforces this with the leading 'WRITE' tag plus the undo tool reference, which is useful contextual framing. However it omits other behavioral details such as permission requirements, whether re-blocking an existing IP errors, or the mutation's effect scope.

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?

Two compact sentences with the operation class ('WRITE') and the undo path front-loaded; every clause carries information and nothing is padded.

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 two-parameter destructive write with no output schema, the description covers what it does, that it mutates, and how to reverse it. It is nearly complete, missing only auth/error-behavior context that would make it fully self-sufficient.

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% and both parameters carry descriptions (IP format with example, pull zone ID constraint), so the schema does the heavy lifting. The description adds no parameter-level detail beyond what is already structured, which is the baseline 3 case.

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 (Block) and resource (IP address on a pull zone), and explicitly names the inverse tool bunny_remove_blocked_ip, so an agent can distinguish it from siblings without opening a schema.

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?

Gives clear context (blocking an IP from a pull zone) and points to the undo path via bunny_remove_blocked_ip, which effectively routes the agent to the paired tool. It stops short of stating exclusions, such as when blocking is inappropriate or what happens on duplicate entries.

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