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

Annotations only declare destructiveHint=true; the description adds the crucial eligibility gates around order state and payout that determine whether the call will succeed. It does not say what happens to already-issued tickets or whether the action is reversible, so it stops short of full disclosure.

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?

Two tight sentences: the state transition first, then the eligibility constraint, then the API endpoint. Front-loaded and waste-free, though the raw endpoint reference is marginal added value.

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 single-parameter mutation with no output schema, the definition covers the required input, the eligibility precondition, and the resulting state. Minor gaps (side effects on existing attendees/orders) remain but the essentials are present.

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% for the single event_id parameter, so the schema already carries the semantics. The description only implies the ID through the POST /events/{event_id}/unpublish/ path and adds no extra meaning beyond it. Baseline 3 applies.

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?

States a specific verb (unpublish) and resource (published event), and the reversal framing ('take a published event back to unpublished') cleanly distinguishes it from the sibling publish_event. An agent can pick the right tool without opening either schema.

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?

Gives explicit preconditions for when the operation is permitted: no pending or completed orders, or for paid events after completion and payout. It does not name publish_event as the inverse alternative, but the usage condition is clearly stated.

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