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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is partly covered. The description adds genuinely new information: the cascading scope (questions, AI answers, scores, history are also deleted) and explicit irreversibility ('This cannot be undone'). It does not mention idempotency or error behavior, keeping it short of a 5.

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 tight sentences with zero waste; the scope of deletion is front-loaded and the irreversibility warning follows immediately. Nothing is redundant with the title or annotations.

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 destructive tool with an output schema present and annotations declaring the safety profile, the description covers everything an agent needs: the affected resource, the cascade of data removed, and the fact that the action is irreversible.

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 the single parameter, domain_id, is fully documented in the schema itself (including format, pattern, and provenance from list_domains). The description adds no format or sourcing detail beyond the schema, so the baseline of 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+resource combination ('Stop tracking a domain and permanently delete') and enumerates the deletion scope (questions, AI answers, scores, history). An agent can immediately distinguish it from siblings like remove_question, add_domain, or list_domains.

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 use case is implied — remove a tracked domain — but there is no explicit when-to-use vs when-not guidance and no alternative named (e.g., a way to stop tracking without deleting). Usage is inferable but nothing routes the agent explicitly.

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