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

Annotations only declare the safety profile (not read-only, not destructive, not idempotent, open-world); the description adds the useful actor restriction and that a winner is computed by weighting. It omits what an agent would want: whether closing is reversible, what happens if no votes exist, and what the call returns. The truncated parenthetical undercuts the one behavioral detail it attempts.

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?

It is short and front-loads the actor and action, which is good. But it ends mid-thought with an unclosed parenthetical, so the one sentence that should have clarified the core mechanism delivers nothing after the word "weighted."

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 state-changing, non-idempotent, non-read-only tool with three undocumented parameters and no output schema, the agent needs to know the shape of the decision payload and the outcome. The description is truncated and covers none of the preconditions, side effects, or results, so an agent could easily call it with the wrong parameters.

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 does not. It hints that "choice" is the winning selection but never explains why choice is optional while space and id are required — presumably an omitted choice means the weighted tally auto-selects. The roles of id vs space are left entirely to inference.

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 opens with a concrete verb and resource: "close a space question and record the winning choice." An agent can tell this is the terminal decision step for a space question. It does not, however, distinguish itself from close siblings like space_vote (which records individual votes) or space_questions, and the trailing "(weighted by..." is cut off, leaving the mechanism unspecified.

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?

"Owner, admin or the asker" gives a real prerequisite the agent can act on. But it never says when to choose this over space_vote, or what preconditions must hold (open question, votes cast). Usage is implied rather than spelled out.

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