Check E-Hentai access

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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, destructiveHint=false, covering safety and idempotency. The description adds specific behavioral detail: it checks three concrete aspects (reachability, auth state, Cloudflare challenge), which goes beyond the annotations. No contradictions.

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, front-loaded sentence of 12 words with no filler. Every word is informative and contributes to the purpose. No extraneous details.

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?

Given the tool's low complexity (one optional parameter, detailed annotations, and an existing output schema), the description sufficiently covers what the tool does and what to expect. It is complete for an access diagnostic tool without requiring additional output details.

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 compensate. The description mentions 'E-Hentai or ExHentai', which maps to the 'site' enum values, but it does not explicitly reference the parameter or explain the default behavior. The meaning is inferable but not explicitly spelled out.

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 uses a specific verb 'Diagnose' and identifies distinct resources: reachability, authentication state, and Cloudflare challenge state. It clearly targets E-Hentai or ExHentai, which differentiates it from all sibling tools that focus on search, metadata, or gallery operations.

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 implies use for checking access before other operations, but it does not explicitly state when to use this tool versus alternatives, nor does it provide conditions or contraindications. Given the sibling list, the usage context is clear but not explicitly guided.

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