Study plan

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

Annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, so the safety profile is covered. The description adds the default-semester behavior, which is genuine value, but says nothing about the response shape or how much data one call returns for a semester.

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 names the resource first, then its payload fields, then the default behavior. No filler, nothing repeated from the name or schema.

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 one optional parameter, no output schema and read-only annotations, the definition covers what an agent needs: what is returned, at what scope, and what happens when the parameter is omitted. Only finer details (ordering, result size) are absent, which is acceptable for this simple read tool.

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% and the lone parameter is documented as a sequential semester number, so the baseline is 3. The description adds a behavior the schema does not state: omitting the parameter defaults to the current semester, which meaningfully clarifies the optional parameter.

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 resource and scope: the disciplines of a student's study plan for one semester, enumerating the returned fields (credits, hours by activity, department, language, elective flag). This clearly distinguishes it from siblings like itmo_get_grades or itmo_get_schedule, though the verb is only implied by the name.

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 clause 'Defaults to the current semester' gives a useful calling hint, so usage is implied. There is no explicit when-to-use guidance or mention of alternatives (e.g., how this differs from get_grades or get_grade_details for a given term).

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