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

The annotations already declare destructiveHint=true and idempotentHint=true, so the core safety profile is covered. The description adds useful behavioral context beyond the annotations: it says the change applies within ~20 seconds, requires PAYWALL_API_KEY, and is not reversible. It does not contradict the annotations.

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 compact and front-loaded: it names the tool, states the effect and timing, gives usage guidance, names the alternative, and warns that the action is destructive. Every sentence carries actionable information with no wasted prose.

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 delete tool with a fully described schema and rich annotations, the description covers purpose, timing, auth, alternative tool, and destructiveness. The only minor gap is that it does not describe the return value, but the tool is simple enough that this is not a major omission.

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 description coverage is 100%, and the single parameter is documented as "Route id from paywall_list_routes." The description does not add further parameter meaning or format details beyond what the schema already provides, so the baseline score of 3 is appropriate.

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 verb and resource: "Remove a paywalled route." It also scopes the operation with timing (~20s) and an auth requirement, and explicitly distinguishes it from paywall_update_route. An agent can identify the tool's purpose without opening the 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?

The description gives explicit usage guidance: use when a route should be removed from the paywall, and not for changing its price because paywall_update_route should be used instead. It also tells the agent to confirm intent before calling, which is appropriate for a destructive operation.

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