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

No annotations are provided, so the description carries the full behavioral burden, yet it only states what data is returned and its version/language scope. It implies a read-only retrieval (取得) but says nothing about format, completeness, or whether the date is a fixed snapshot. The version and language qualifiers add some real context, but disclosure remains thin.

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?

A single sentence that front-loads the resource and packs the qualifiers (language, format, version) without any filler. Every clause earns its place.

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 no-parameter, no-output-schema lookup, the description is nearly complete: it tells the agent what set of data is returned and which version. The only minor gap is that it doesn't hint at the result structure or whether it is exhaustive, but output format is not required to be described here.

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?

Zero parameters are defined, so there is no parameter semantics to document and the baseline for a no-arg tool applies. The description correctly implies the entire call is parameterless by specifying the fixed scope (English, Standard, dated version) that would otherwise be a parameter.

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?

Gives a specific verb (取得/retrieve) plus a precise resource (英文版 Standard 禁卡表與禁用戰場) and even pins the version date (2026-07-16). The resource is clearly distinct from the rules/FAQ/chapter siblings, though it never names an alternative to route against. Clear and specific, just without explicit sibling differentiation.

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?

No explicit when-to-use or when-not-to-use statement, and no alternatives (search_rules, lookup_term) are mentioned. However, the tool takes zero parameters and is a self-contained lookup keyed by a versioned banlist, so the intended usage is strongly implied by the title and resource. Meets the implied-usage bar, no more.

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