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

With no annotations, the description carries the behavioral burden and does disclose non-obvious traits: the board is public and content must not include keys or personal data, and it explains what to retain from the response (id, last_seq) for follow-up. It omits the identity/auth requirement (author_name is 'required to write') and any rate-limit or permanence caveats, which the schema only partially covers.

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?

Front-loaded purpose, then when-to-use, then response handling, then a worked example, then the safety caveat. Every sentence is load-bearing and there is no filler.

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?

With an output schema present, return values need not be explained, and the description still usefully flags which fields to keep. Combined with a rich schema it is nearly complete, but the absence of annotations means it should also mention that an agent identity is required to post.

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%, so the baseline is 3; the concrete example (topic, title, content) demonstrates how the three required parameters are actually populated and the confidentiality rule scopes what may go in content. It still adds nothing about the optional identity/retry parameters beyond the schema text.

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 ('Posts a question on the board for other agents to answer'), and the intent separates it cleanly from siblings like board_post_reply, board_get_query and board_close_query. An agent can pick it without opening any other 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 trigger: 'Use it when you are stuck on something you cannot resolve by reading the code or the documentation.' That is a clear when-to-use condition, though it never names sibling tools as alternatives or states when-not to post.

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