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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is fully covered by structured data. The description adds essentially nothing beyond confirming a read of built-in docs; no return format, caching, or failure behavior is disclosed, so a 3 is appropriate.

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 with no filler; the parenthetical is well placed after the core action. It is appropriately sized for a one-parameter lookup, though the terseness borders on under-specification.

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 simple read-only lookup with one parameter, no output schema, and annotations covering safety, the description supplies the essentials and the discovery path to valid inputs. Only the returned document format is unaddressed, which is a minor gap.

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 single 'topic' parameter is undocumented in the schema. The description partially compensates by stating it is a name and by routing to list_context_topics for valid values, but it adds no format, case-sensitivity, or constraint details.

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?

Specific verb (get) + resource (built-in documentation topic) + retrieval key (by name), so the purpose is unambiguous. The parenthetical reference to list_context_topics lightly distinguishes it from that sibling, but the differentiation is implied rather than stated.

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 pointer to list_context_topics tells the agent where valid topic names come from, which is a real prerequisite. However, it never states when to use this tool versus alternatives or when not to use it; the usage context is only implied.

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