sis_registration

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

No annotations are provided, so the description carries the full behavioral burden. It does disclose the shape of the response (personal info plus a payment-open prompt), which hints at a read-only lookup tied to the caller's identity, but it does not state authentication requirements, what happens when registration is closed, or whether anything is mutated. Adequate but thin for an unannotated 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?

A single compact sentence with the resource front-loaded and the payload detail parenthesized, so nothing is wasted. The trade-off is that its brevity comes at the cost of the missing usage and behavioral context rather than from efficient encoding.

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 zero parameters and no output schema, the description must cover both intent and return content; it does the latter partially (personal info + payment-open hint) but only vaguely, and omits the term/semester scoping that determines what "注册" refers to. Minimum viable for a simple lookup, but not 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?

The tool takes zero parameters, so there is nothing for the description to disambiguate on the input side. Baseline for a parameterless tool applies, and the description does not need to add parameter guidance.

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?

"取学期注册缴费状态" states a specific verb (取/fetch) and a specific resource (semester registration payment status), with a parenthetical listing what the payload contains. It is distinguishable from most siblings such as sis_grades or sis_grades, but it never contrasts itself with the nearest neighbours (sis_statuses, sis_second_class), leaving some ambiguity within the crowded sis_* family.

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?

There is no guidance on when to call this versus alternatives: no mention of preconditions (enrolled term?), no exclusions, and no routing to sibling tools such as sis_statuses or sis_cart for related registration/payment queries. Usage must be inferred entirely from the name and the noun phrase in the description.

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