cn402_iching_meihua

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

With no annotations, the description must disclose behavioral traits. It mentions a price (auto-paid in USDC), indicating a paid tool, which is a key behavioral trait. However, it does not describe what the tool returns (e.g., lines, hexagram number) or whether the operation has side effects. The payment detail adds transparency but remains vague.

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 cluttered with a long list of synonyms and alternative names, which could be condensed. The actual functional description is only one short sentence. The pricing info is appended awkwardly. It is not concisely front-loaded.

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?

The tool is complex (divination method) and has no output schema. The description does not explain what the output looks like (e.g., hexagram, lines, interpretation). Among many I Ching siblings, it lacks details that would help an agent choose correctly. Missing return format and use context.

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 coverage is 100%, so baseline is 3. The description says 'from given numbers (time, date, or arbitrary)' which aligns with the parameters n1 and n2. It adds little beyond the schema: the schema already indicates n1 defaults to current time. No extra semantic value is provided.

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 that the tool casts a hexagram using the Plum Blossom Numerology method from numbers. The multitude of names (Plum Blossom Yi Numerology, 梅花易数, etc.) helps identify the method, distinguishing it from other I Ching tools like coin or random hexagram generation. However, the initial list is somewhat cluttered.

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 provides no guidance on when to use this tool instead of other I Ching tools (e.g., cn402_iching_coin, cn402_iching_random). It does not specify prerequisites, when not to use, or mention alternatives. An agent would have to infer usage from the method name alone.

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