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

The annotations already declare this as safe, read-only, idempotent, and non-destructive. The description adds useful return-value context by naming ticket names, prices, sale status, and remaining counts, though it does not discuss authorization or edge-case behavior.

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 tightly written sentences with the action and scope front-loaded. Every phrase adds either workflow context or expected return information.

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 simple one-parameter read tool with no output schema, the description covers the required input source and summarizes the returned fields. Annotations already cover safety, so an agent has enough to call it correctly.

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%, and the description repeats the schema's guidance that event_slug comes from list_events. It does not add format, validation, or example details beyond the schema.

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: get ticket types and prices for a specific event. It also names the return fields, making clear this is an information-retrieval tool rather than a booking or RSVP action.

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 the prerequisite that the event slug comes from list_events, which implies the workflow context. However, it does not explicitly say when to use this versus related siblings like reserve_event_tickets or get_availability.

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