list_attendance_sessions

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 disclose that the output consists of compact summaries, which is a useful behavioral trait. However, it lacks explicit mention of auth requirements, side effects (if any), or read-only guarantees, though the verb 'list' implicitly suggests safety. The transparency is adequate but not rich.

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 well-structured: the opening sentence states the action, the second clarifies the output nature, the third provides an alternative, and the Args section offers parameter guidance without unnecessary fluff. Every sentence earns its place.

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 list operation with one parameter and an output schema, the description covers purpose, output format, an alternative for full details, and parameter discovery. It is complete enough for an agent to select and invoke the tool correctly.

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 input schema only defines course_id as an integer with no description, and schema description coverage is 0%. The description compensates fully by explaining course_id is the course ID and telling the agent to use list_courses to find it, adding meaningful domain context beyond 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 it lists attendance sessions for a course, using a specific verb and resource. It also distinguishes from the sibling get_attendance_session by noting it returns compact summaries, which is a key differentiator.

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 explicitly directs the agent to use get_attendance_session when full details are needed, and lists list_courses as a prerequisite for finding course_id. This provides clear context and a named alternative, satisfying the 'when vs. alternative' requirement.

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