List pins in a board section

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

Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds the required OAuth scopes (pins:read, boards:read), which is exactly the auth context annotations do not supply. It stops short of describing pagination behavior, but the bookmark/page_size parameters carry that.

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 short sentences, purpose first and the scope requirement second. No filler; every clause conveys 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?

For a read-only list tool with no output schema, the description plus annotations plus the bookmark/page_size schema fields are nearly sufficient. The minor gap is that it never signals the response is paginated or that ads delegation is possible, though those live in the schema.

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 67%, with board_id, section_id, and pin_metrics essentially undocumented. The description adds no parameter-level detail (no mention of bookmark pagination, page_size, or the ad_account_id delegation case), so it neither compensates for the gap nor duplicates the schema.

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 (List) and resource (pins saved inside one section of a board), which cleanly separates it from pinterest_list_board_pins and pinterest_list_board_sections. It does not explicitly name those siblings, so routing relies on the reader noticing the 'section' scope.

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?

Usage is implied by the scope ('one section of a board'), so an agent can infer when it applies, but there is no explicit when-to-use/when-not or named alternative (e.g., use pinterest_list_board_pins for the whole board).

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