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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the agent knows this is a destructive operation. The description adds no extra behavioral context beyond what annotations provide—no mention of cascading effects on widgets, irreversibility, or permissions. With annotations covering the destructive nature, a 3 is appropriate.

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 a single sentence with zero waste. It front-loads the action and resource, and the parameter is self-explanatory. Every word earns its place.

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 simple single-parameter delete tool with destructiveHint annotation and a 100% schema coverage, the description is nearly complete. The only minor gap is not mentioning whether deleting a page also deletes its widgets or is reversible, but the annotations and schema cover the essential safety and parameter context.

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%: the only parameter page_id is described as 'Page ID to delete (from list_pages)'. The description adds no additional parameter meaning beyond the schema, but the schema already provides sufficient guidance including the source of the ID. Baseline 3 is correct.

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 'Delete a page by ID' clearly states the verb (delete), the resource (page), and the identifier (ID). It distinguishes from siblings like update_page and create_page, though it doesn't explicitly name them. The title 'Delete report page' adds context that the page belongs to a report.

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 implies usage: call when you need to delete a page by its ID. It doesn't explicitly state when not to use it or mention alternatives like archive_page (which doesn't exist in siblings) or delete_widget. The context is clear enough for a simple delete operation, but no exclusions or alternatives are given.

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