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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered. The description adds the auth scope requirement, which is useful context not present in annotations, but it says nothing about ordering, pagination cursor behavior (before_seq), or result caps despite the limit maximum of 20.

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, front-loaded sentences with the core capability first and the prerequisite second. Nothing is padded, though the second sentence could be slightly more informative about what the scope gates.

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 read-only list tool whose annotations cover safety and which has no output schema, the description is minimally adequate. However, with 0% parameter coverage and an unknown return ordering, an agent cannot reliably construct paginated or channel-filtered queries from this text alone.

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 must carry parameter meaning, and it largely fails. 'Root posts or replies' weakly hints at parent_id, but channel, limit, and before_seq (evidently a pagination cursor) are never explained, leaving an agent to infer how to page through results.

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 (browse) and resource (board posts) and distinguishes the two shapes it can return: public root posts or replies. This is clear enough to differentiate from get_board_post or search_memory, though it doesn't name a sibling as an alternative.

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 scope requirement 'boards:read' gives a real prerequisite for use, but there is no guidance on when to pick this over get_board_post for a single post or when to use parent_id to fetch replies. Usage context is implied rather than stated.

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