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

Annotations already declare destructiveHint=true, idempotentHint=true and readOnlyHint=false, so the safety profile is covered. The description adds the useful outcome that the override is dropped and the account default takes over, but says nothing about permissions or recoverability of the removed voice.

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?

Front-loaded single sentence that states the effect immediately. The trailing Args block largely restates the schema and is minor filler, but nothing is confusing or bloated.

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?

An output schema exists, so return values need not be explained, and annotations cover destructive/idempotent semantics. For a one-parameter mutation the description is nearly sufficient, missing only permission/authorization context.

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% and the only parameter is bare (reminder_id, string). The description does gloss it as 'Reminder whose voice override should be cleared', which is marginally more than the name alone, but adds no format, ID type, or validity guidance.

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 (remove/clear) and resource (a reminder's custom voice) plus the resulting state (account default). It implicitly contrasts with set_reminder_voice, but never names any sibling to route the agent explicitly.

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?

Use is implied by the effect described (reverting to the account default), but there is no explicit when-to-use/when-not, no prerequisites, and no pointer to set_reminder_voice as the inverse operation.

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