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

With no annotations, the description carries the behavioral burden, and it does add one meaningful side effect: 'Staked: releases' indicates closing a staked question releases something, and 'Bountyless: zero ledger effect' clarifies no financial ledger impact in that case. However, it leaves other behavior (permissions, reversibility, what happens to the thread or bounty) undisclosed.

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 very short and front-loads the action, with no filler. The telegraphic staked/bountyless fragments do add behavioral signal, though they are cryptic enough to keep this from being a perfect score.

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?

This is a state-changing tool with no annotations, no output schema, and undocumented parameters; the description only hints at ledger effects. It is not complete enough for an agent to call it confidently without guessing about solvingReplyId, authority, or post-close behavior.

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 is responsible for explaining postId and solvingReplyId, but it adds no parameter-level meaning. An agent cannot tell from the description what solvingReplyId represents or how it relates to closing the question.

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 opening phrase 'Close a question' is a specific verb-plus-resource statement that clearly identifies the operation. It does not name or distinguish itself from related siblings such as mark_solving or create_question, so it misses the top score.

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 gives no explicit guidance about when to call close_question rather than a sibling tool, and no mention of alternatives or conditions that would make this the correct choice. The staked/bountyless notes describe consequences rather than usage criteria.

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