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

With destructiveHint already set to true, the description adds meaningful behavior beyond the annotation: permanence, immediate finality, and URL non-reassignment. It also clarifies a token requirement nuance. This goes beyond a bare mutation warning, though it does not describe side effects on associated data or versions.

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 two tight sentences. It opens with the core action, then adds the most critical behavioral warning, and ends with a relevant authentication detail. No sentence is wasted.

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 tool with no output schema, the description conveys irreversibility and a key token condition, but it does not explicitly state when managementToken is required, how it is obtained, or what happens with missing authorization. The operation is simple enough that major behavior is covered, but a cautious agent would still want more guidance.

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%, so the description must compensate. It partially explains managementToken by contrasting it with the account token, but it leaves dropId's role implicit. The dropId pattern is self-evident from the tool purpose, but managementToken's exact origin or required scenarios are not fully specified.

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 states a specific verb and resource: 'Permanently delete a drop.' It also adds a distinguishing permanence fact: the URL is never reassigned. This clearly differentiates deletion from other drop lifecycle siblings like release, rollback, or replace.

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 description offers useful context about authentication: 'With an account token, owned drops need no managementToken.' However, it never names alternative tools or states when deletion should be preferred over a sibling operation. 'Immediate and final' implies when to choose this tool, but the guidance is not explicit.

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