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

Given annotations already flag destructive and open-world (booking) behavior, the description adds a real non-obvious trait: the operation is 'Held first' rather than booked immediately, and a ready-to-read summary appears in `say`. It still says nothing about the confirmation loop, permissions, or limits on repeated calls.

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?

Three tightly packed fragments with no filler, and the core propose-then-book mechanic is front-loaded. The telegraphic phrasing ('Held first') is efficient but borders on cryptic, costing a little clarity.

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?

This is a destructive, non-idempotent mutation with 7 parameters, 29% schema coverage, and no output schema, so the description bears a heavy burden. It names the `say` return field but omits the confirmation_token workflow, the meaning of link/place/note/minutes, and what happens on subsequent calls.

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 only 29%, so the description must carry weight. It meaningfully supplements the undocumented `times` parameter with the ISO format and a 1-5 bound. However, link, place, note, minutes, and the confirmation_token flow remain unexplained, leaving half the surface 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 conveys a specific functional model: propose one to five future ISO times, the candidate picks one, and it is booked for both parties. The resource (interview) and the propose-then-book behavior are clear, though the verb 'schedule' is only implied. It does not distinguish itself from close siblings like answer_interview or interview_prep.

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?

There is no explicit when-to-use or when-not-to-use guidance. 'Held first' faintly hints at a two-step hold/confirm flow but is far too terse to route an agent between this tool and alternatives such as prepare_application or list_interviews.

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