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

The annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, and the description is consistent with them. It usefully flags that the operation is credentialed with a secret, but says nothing about irreversibility, error behavior on bad credentials, or what happens when the subscription is already gone.

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 sentence, front-loaded with the action and ending with the credential source. Nothing is wasted and nothing is buried.

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 destructive tool with no output schema, the description covers the action and where the credentials come from. It omits the failure modes and permanence that an agent should know before calling a delete operation.

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 0% and neither parameter is typed beyond 'string', so the description does real work by stating both values come from subscribe_alerts. It does not specify format, length, or what an invalid id/secret looks like, so the compensation is partial.

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?

Specific verb (delete) plus specific resource (push-alert subscription), so an agent knows exactly what the tool does. Naming subscribe_alerts as the source of the credentials also distinguishes it from the sibling that creates subscriptions, though the description doesn't otherwise position it in the sibling set.

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?

The prerequisite is implied clearly: you must already have an id and secret from subscribe_alerts, so this tool is for tearing down an existing subscription. There is no explicit statement of when not to use it or what to do if the credentials are lost or invalid, leaving guidance implicit.

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