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

With no annotations, the description carries the full behavioral burden. It clearly indicates an informational read-only behavior ('Answers... explains') with no side effects or mutations. The zero-parameter schema further supports that this is safe and non-destructive.

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?

The description is a single, focused sentence that covers both the core question (who can build) and the extended value (how Walnai can help). No filler words or redundant phrasing.

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 zero-parameter, non-schema'd informational tool, the description fully covers what the user will learn (who can build, how Walnai helps). The lack of output schema is compensated by the self-explanatory nature of the tool.

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?

The tool has no parameters, and the schema is empty (100% coverage). Baseline for zero parameters is 4, and the description adds no parameter details, which is appropriate since there are none to explain.

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 states a specific verb ('Answers', 'explains') and a clear resource (who can build MCP servers and Walnai's role). It distinguishes the tool from siblings like get_who_is_walnai and get_service_details by focusing on MCP server creation capabilities.

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 gives clear context for use: questions about building MCP servers or Walnai's MCP implementation services. It does not explicitly exclude alternatives or name sibling tools for comparison, but the topic focus is narrow enough to imply appropriate usage.

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