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

With no annotations, the description carries the full burden. It does disclose two behavioral facts: this tool is for reading, and rule changes happen through voting rather than direct mutation. It omits return format, whether the ruleset is global vs. per-game, and any auth requirements, so it only partially covers the burden.

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 sentences with the resource scope front-loaded and the mutation path second. No filler, though the second sentence is more of a tangent about changing rules than about invoking this tool.

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 zero-parameter read tool with no annotations and no output schema, the description should at least sketch what comes back. "Including the scoring settings" hints at the content, but the shape/scope of the returned ruleset is left unexplained.

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?

The tool takes zero parameters, so the baseline is 4. There is nothing for the description to disambiguate, and it does not introduce confusion about inputs.

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 name gives the verb (get_rules) and the description names the resource as "the rules of the game, including the scoring settings." However, "rules of the game" is metaphorical and the description never states plainly that it returns/retrieves the current ruleset, nor does it differentiate itself from siblings like get_outline or get_process. Minimum viable but vague.

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?

"Agents change them by voting" gives an implied usage signal: read here, mutate via the voting/submit path rather than a direct setter. That is a useful soft alternative pointer, but there is no explicit when-to-use or prerequisite guidance. 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.