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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds value beyond that by disclosing the return shape (title, ID, link), which matters because there is no output schema.

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 compact sentence with the scope front-loaded and the returned fields trailing. It is efficient and free of filler, though the opening clause is grammatically confusing ('Boards inside one board').

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 two-optional-parameter read tool with full schema coverage and annotations, the essentials are present, and the description compensates for the missing output schema by naming returned fields. It still omits ordering, pagination/limit behavior, and how deeply nesting is traversed, which an agent might reasonably want.

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%, so both limit and parent_board_id are fully documented in the schema, including the ID-or-URL format and Home default. The description only restates the default scope, adding no new semantics beyond the schema — baseline 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?

The description identifies the resource (boards) and the scope (boards nested inside a parent board, defaulting to Home), plus the returned fields. However, the phrasing 'Boards inside one board' is awkward and it never distinguishes this from siblings like list_recent_boards, search_boards, or get_board, so an agent must infer the difference.

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?

It states the default scope (Home boards) but gives no explicit when-to-use guidance and names no alternative. With several list/search siblings available, an agent gets no routing signal for choosing list_boards over search_boards or list_recent_boards.

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