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

Annotations already declare destructiveHint=true, idempotentHint=false, and readOnlyHint=false, so the safety profile is covered structurally. The description adds nothing beyond that: it does not say whether deletion is permanent, whether existing or in-flight runs are affected, or whether archived history survives. For a destructive mutation, that silence is a real gap even with annotations present.

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?

One short, front-loaded sentence with no wasted words, but the brevity comes from omission rather than efficiency. Nothing is misleading, but nothing is earned either.

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 destructive, non-idempotent operation with no output schema, the description should disclose permanence and side effects on associated runs or history. Annotations cover the safety flag but not the consequences, leaving an agent unable to predict the outcome of the call.

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 single parameter scheduleId is documented in the schema with its s_… format, so the description has little to compensate for. The baseline 3 applies since the description contributes no additional meaning about the identifier.

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?

"Delete a schedule" restates the tool name and title without adding scope, target constraints, or any distinguishing detail. An agent learns only the verb and resource already encoded in the identifier, and nothing that separates this from sibling delete_* tools.

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 when-to-use guidance, no mention of alternatives such as update_schedule, and no note on prerequisites (e.g., whether the schedule must be inactive). Usage is only implied by the name.

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