Delete Webinar

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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the description is not obligated to re-state risk. It adds real value by spelling out the required permission scopes and the delegation-token caveat, plus the confirm=true enforcement. The final clause ("May share access, notify people or incur provider charges") is vague boilerplate that dilutes rather than clarifies.

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 purpose is front-loaded in a single clean sentence, which is good. But the multi-block permission explanation is heavy for a three-parameter tool, and the trailing catch-all sentence is low-information filler that does not earn its place.

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 delete with annotation coverage and no output schema, the description supplies the two things an agent most needs beyond structure: the authorization requirement and the confirm gate. It stops short of explaining irreversibility or what happens to associated registrations/collaborators, which would fully round it out.

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 100%, so the schema already documents id, account and confirm. The description echoes the confirm=true requirement but adds no format, syntax, or edge-case meaning beyond the structured fields. Baseline 3 is appropriate.

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 opening line states a specific verb and resource ("Deletes an existing webinar"), so the agent immediately knows the operation. It does not explicitly differentiate itself from other delete siblings (delete_media, delete_review_bundle), but the resource name makes the distinction obvious.

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?

It gives one concrete precondition ("Requires confirm=true") and names the required token permissions, which is useful invocation guidance. However, it never says when to choose this over alternatives such as update_webinar or archive-type operations, and there is no explicit when-not guidance.

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