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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and a closed-world scope, so the safety profile is fully covered. The description adds only that the output is static reference content; it discloses nothing extra about freshness, size, or structure of the returned reference.

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?

One sentence, zero filler, with the resource and the two valid topic values front-loaded. Nothing here could be trimmed without losing information.

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 one-parameter, read-only lookup with annotations carrying the safety profile and no output schema, this is nearly sufficient. The only mild gap is that an agent is not told the shape or extent of the returned reference.

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 100% and the single parameter's allowed values are already documented in the schema. The description merely echoes the same two topic strings, adding no syntax, defaulting, or behavioral nuance beyond the schema.

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?

States a specific verb ("Returns") and resource ("Pagehaus's reference") and enumerates the exact topics covered (includes, forms). It is unambiguously a documentation-lookup tool, clearly distinct from the file/site/domain operation siblings.

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?

By naming the two topics it implicitly tells the agent when to reach for each, but there is no explicit when-to-use framing, no statement of when NOT to use it, and no mention of alternatives such as the guide being needed before write_file or create_site operations.

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