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

With no annotations, the description carries the full behavioral burden. 'Change' implies a mutation, but it says nothing about permissions, whether a status change (e.g. Closed) notifies the customer, or whether changes are reversible. For a state-mutating tool this is a real gap.

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 with the action front-loaded and the allowed values appended. Every sentence earns its place with no 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 mutation tool with no annotations and no output schema, the description covers the valid status values but omits side effects, permissions, and any explanation of the optional intentId. Adequate to invoke, thin on behavior.

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 coverage is 100%, so baseline is 3, but the description adds genuine value by enumerating the valid status names (Draft, Open, Pending, Closed, Resolved, Error) even though the schema defines 'status' as a free string with no enum. This closes an enum gap the schema leaves open. It does not explain the intentId parameter.

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 and resource ('Change a support ticket's status'), which is enough for an agent to distinguish it from mutation-adjacent siblings like ReplyToTicket or UpdateCustomRate. It stops short of explicitly naming how it differs from ReplyToTicket, but the verb+resource pair is unambiguous.

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 when-to-use guidance, no prerequisites, and no mention of alternatives such as ReplyToTicket. The only implicit guidance is the status list, which does not tell the agent when changing status is the right action.

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