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

Annotations already provide idempotentHint=true and destructiveHint=false, but the description adds no behavioral context beyond the action itself. It does not disclose what happens if the session already has an interviewer, whether reassignment is allowed, or any side effects.

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 a single, front-loaded sentence with no wasted words. It is concise and readable, though it lacks additional useful context that could be added without bloating the text.

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 mutating tool with four parameters, no output schema, and zero schema descriptions, the description is too sparse. It does not cover reassignment behavior, prerequisites, or how to handle the optional idempotency fields, leaving an agent under-equipped for correct invocation.

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 0%, so the description must compensate for parameter meaning. It only implies the two required parameters ('interviewer' and 'interview session') and says nothing about request_id or idempotency_key, leaving their purpose undocumented.

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 uses a specific verb ('Assign') and resource ('interviewer' to 'interview session'), making the tool's function immediately clear. It is also distinguishable from sibling tools like unassign, list, cancel, and complete by its action and target.

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 guidance is provided about when to use this tool versus alternatives, such as available_interviewers_list, unassign, or session readiness checks. There are no stated prerequisites, exclusions, or context about session state.

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