search_titles

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

Describes read-only behavior (searching, returning suggestions) and provides parameter details. No annotation contradictions. Lacks details on rate limits or return format, but acceptable for a search tool.

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: first for purpose, second for parameters. No wasted words, front-loaded with verb and resource.

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?

Complete for a simple search tool: covers functionality, return type, and all parameters. Could explicitly differentiate from sibling tools but not essential.

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%, but the description explains all four parameters, including range for limit and examples for project/language, adding value beyond schema types.

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?

Clearly states the tool searches Wikimedia page titles starting with the query, and returns suggestions with descriptions. Distinguishes from sibling search_content by specifying title prefix matching.

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?

Implied usage is clear from name and description, but no explicit guidance on when to use this tool versus alternatives like search_content for full-text search.

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