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

No annotations are provided, so the description carries the full burden. It does add real substance by disclosing the two rates and that it returns 實拿金額 (net amount), which is good. But it omits key behavioral context such as whether the NHI 2.11% has a threshold, how the two rates combine, and how the kind enum affects the result.

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?

A single front-loaded sentence that exposes the rates and output immediately. The bracketed toolbox tag is mildly extraneous but the rest is dense and waste-free.

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?

With no annotations and no output schema, the description must stand alone for a 2-param calculator. It conveys the calculation method and return value but leaves the kind parameter, input units, and any applicability thresholds unexplained, so it is only partially complete.

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%, so the description must compensate. It implies 'amount' is the endorsement income but never documents units/format, and it entirely omits the meaning of the 'kind' enum (9A vs 92) and how it changes the calculation, despite that enum being the only structured hint.

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 (扣繳試算/withholding calculation) and resource (網紅業配收入/endorsement income), and names the exact computation (10% professional-practice withholding + 2.11% NHI supplementary premium) plus the returned value (net take-home). This distinguishes it from siblings like calc_group_buy_profit and platform_fees, which compute different things.

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 target scenario (influencer endorsement income withholding) is implied, so an agent can infer when to use it. However, there is no explicit when-to-use/when-not statement and no alternative or sibling tool is named for contrast (e.g. calc_group_buy_profit or check_tax_registration).

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