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

Goes well beyond the annotations: it discloses immediate URL breakage, a brief dashboard-only undo window, permanent purge with no restore tool, the return shape { ok, id, deleted }, and the page_not_found failure condition. The annotations only flag destructive/openWorld/non-idempotent; the description supplies the reversibility and blast-radius details that actually drive the decision.

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?

Four short sentences, front-loaded with the effect of the call, then the alternative, then the return/failure contract. Nothing is redundant with the schema or annotations, and every clause carries decision-relevant information.

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?

No output schema exists, but the description supplies the return shape and the failure case, and it covers reversibility, permissions-adjacent scoping, and the substitution path. Nothing an agent needs to call this mutation safely is missing.

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 schema already explains the id format and space scoping, so the baseline is 3. The description still adds meaning by tying the id to a failure mode — the id must be in this space and not already deleted, else page_not_found — which the schema does not state.

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 and resource ("Delete a page") and immediately names the observable consequence ("its URL stops working at once"), which disambiguates it from hide-style siblings. An agent can tell it apart from unpublish_page without opening either 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 an explicit precondition ("Only use it when the human asked for deletion") plus the named alternative and the condition that selects it ("to hide a page reversibly, use unpublish_page instead"). Both the when and the when-not are stated.

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