课程移除学生

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

Annotations already indicate write, destructive, and idempotent behavior. The description adds that both students and auditors are removed and that an operation result is returned, but it does not elaborate on side effects, permissions, or reversibility. It provides minimal supplementary context beyond annotations.

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 concise and front-loaded with the main purpose, but it includes a parameter list that duplicates the schema. While not overly verbose, the redundancy prevents a perfect score.

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 simple delete operation, the description covers the essential elements: purpose, parameters, and return behavior. The absence of an output schema is partially compensated by the return statement. It lacks usage context but is adequate given the tool's simplicity and the rich annotations and schema.

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 100%, with all parameters having descriptive text. The description merely repeats the parameter names and types without adding semantic depth, so it does not exceed the baseline established by the schema.

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 '从课程中移除学生或旁听' (remove students or auditors from a course), using a specific verb and resource. This differentiates it from sibling tools like adding students or deleting classes.

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 versus alternatives. It does not mention prerequisites, preferred contexts, or exclusions, leaving the agent without decision support for tool selection.

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