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

Annotations already declare destructiveHint=true and readOnlyHint=false; the description goes further by specifying immediacy, bulk scope ('every active ticket'), the concrete failure mode for stale callers (401), and the recovery path. It omits whether in-flight uploads are cancelled or whether the revocation is reversible, which keeps it from a 5.

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 short sentences, front-loaded with the action and scope, then the consequence, then the remedy. Every sentence carries distinct information; nothing is redundant filler.

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 zero-parameter, destructive, account-wide operation with annotations covering the safety profile and no output schema, the description supplies everything an agent needs: scope, effect timing, downstream consequence, and how to recover.

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?

Zero parameters, so per the rubric the baseline is 4. The description involves no parameter semantics to explain, and none are needed.

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 (revoke) plus precise resource and scope (every active upload ticket for this account), which cleanly separates it from create_upload_ticket and delete_media. It even anchors to the REST endpoint it mirrors, so an agent knows exactly what operation this is.

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?

Clear context: use this to invalidate all outstanding tickets, and 'create a new ticket to resume' points the agent to the create_upload_ticket sibling for the follow-up path. No explicit when-not-to-use or bulk-vs-single alternatives are given, so it stops short of a 5.

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