cn402_fengshui_direction

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

No annotations are provided, so the description must fully disclose behavior. It mentions the computation method but lacks detail on output format, potential costs beyond the price note, or any side effects. The price note about Base and USDC is present but is not core behavioral information.

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 verbose with multiple keywords and Chinese translations, which reduces clarity. It includes a price sentence that may not be essential. While informative for multilingual users, it could be more streamlined.

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?

Given the 2 parameters and no output schema, the description explains the method and inputs competently but omits details on the output structure (e.g., list of lucky/unlucky directions). The price note adds context but not functional completeness.

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 schema has 100% coverage for both parameters (gender, year). The description adds meaning by linking them to 'birth year and gender' and the 'Eight Mansions method,' and introduces the concept of 'personal kua number direction' which helps understand the output semantics.

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 clearly states 'Feng Shui direction analysis' and specifies 'Compute lucky and unlucky directions based on birth year and gender using Eight Mansions (Ba Zhai) method.' It differentiates from siblings like cn402_fengshui_24shan and cn402_fengshui_bagua-direction by focusing on personal kua number direction.

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 implies usage for personal direction luck analysis but does not explicitly state when or when not to use it, nor does it mention alternatives among the many fengshui siblings. The context signals show many similar tools, but no guidance is provided.

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