update_event_inventory_tier

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

No annotations are provided, so the description must disclose behavioral traits. It only says 'update' without specifying that it performs a partial update (only optional fields are changed), what happens if the tier doesn't exist, whether it returns the updated object, or any other side effects. This is a significant gap for a mutation tool.

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 a single sentence, which is appropriately concise and front-loaded with the core action. There is no unnecessary fluff. However, its brevity comes at the cost of missing important details, so it's concise but not informative.

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?

Given that an output schema exists, we don't need to explain return values, but the description still lacks essential context. It doesn't clarify that only name and quantity_total are updatable, that event_id and inventory_tier_id are required and immutable, or any error handling. The tool is under-specified for an agent to use 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 0%, so the description must explain the parameters, but it doesn't mention any of them. The schema only provides titles ('Event Id', 'Inventory Tier Id', etc.), which are self-explanatory but lack meaning about required vs optional, format, or relationships. The description adds zero value for parameters.

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 clear verb ('update') and resource ('existing inventory tier'), which distinguishes it from create and delete tools. However, it doesn't differentiate from other update tools like update_event_capacity_tier or update_ticket_class beyond the resource name, so it's clear but not explicitly differentiated.

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?

There is no guidance on when to use this tool versus alternatives. The description doesn't mention that this is for modifying an already-created tier, nor does it note that event_id and inventory_tier_id are required identifiers and that name and quantity_total are optional fields for partial updates. An agent gets no context about prerequisites or exclusions.

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