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

Annotations already declare readOnlyHint and openWorldHint (local corpus). Beyond that, the description adds useful behavior: it returns best-matching articles with their paths, which matters since there is no output schema. Ranking/pagination behavior is the only notable omission.

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 sentences, front-loaded with what is searched and what comes back, ending with the next-step pointer. No filler or repetition of schema 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?

For a simple read-only search with fully documented params and annotations covering safety, the description supplies enough: scope, result shape, and follow-up tool. Minor gaps (result ordering, whether limit affects ranking) do not block correct invocation.

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%, including enum values and limit bounds, so the schema carries parameter semantics. The description only adds that querying is keyword-based across the listed languages, which is marginal beyond the enum.

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 (search) and resource (DevDocs10 guides), names the covered languages, and clarifies it is keyword-based rather than a fetch. The closing pointer to get_doc separates it cleanly from its read sibling.

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?

Explicitly routes the agent: search here, then 'read one with get_doc'. It gives a clear workflow but does not mention list_docs or when browsing might beat searching, so alternatives are only partially covered.

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