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 structurally. The description adds nothing beyond that: no statement of irreversibility, what happens on a missing ID, or error behavior for a destructive operation.

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 front-loaded sentence with no padding, which is good sizing for a delete tool. But it is arguably too terse for a destructive operation, and the misspelling undercuts precision.

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?

Annotations and the small schema cover most of what an agent needs for a delete call, and no output schema is needed. Still, with zero required parameters and two optional identifiers, the description should clarify the identifier contract; that gap is the main missing piece.

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 0%, so the description carries some burden. It does add real semantics by presenting the two parameters as alternatives ('by X or Y'), which the flat schema does not convey. However, it does not say whether exactly one is required, whether both may be supplied, or which to prefer.

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 (delete a external backlink) and names the two identifier keys, which separates it from list_external_backlinks and create_external_backlink. The resource name is corrupted by a typo ('seliee_external_backlink'), which slightly muddies an otherwise clear purpose.

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 instead of list_external_backlinks or how it relates to create_external_backlink. It also gives no instruction about the required selection between the two identifiers, even though the schema marks both as optional.

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