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

The annotations already declare this is a non-read-only, non-destructive, open-world operation, so the safety profile is covered. The description adds only the bare meaning of 'records', and says nothing about idempotency, what happens if the link already exists, or whether the assessment must currently be unlinked.

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 short sentence with the action front-loaded and no wasted words. It is efficient, though the brevity contributes to the missing behavioral detail rather than reflecting well-chosen compression.

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 two-parameter mutation whose schema and annotations are fully populated, this is minimally adequate. It still leaves out the unlink/idempotency behavior and the relationship to attach_assessment_to_student, which an agent needs to invoke it 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?

Schema coverage is 100% and both parameters already document their source tools (get_schedule and list_assessments). The description adds no extra meaning beyond what the schema provides, so the baseline of 3 applies.

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 and resource: 'Records that an assessment was done in a given class.' However, it does not distinguish the tool from the very similar sibling attach_assessment_to_student, so an agent cannot tell the two apart from the text alone.

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?

No when-to-use guidance is given at all. Notably, the sibling list contains both attach_assessment_to_student and list_unlinked_assessments, which strongly imply prerequisites and alternatives the description never mentions.

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