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

Annotations already establish readOnly, non-destructive, closed-world behavior, so the safety profile is covered. The description adds that results are 'most recent' and include status, but omits what happens with more tickets than the cap, ordering guarantees, or whether results span all ticket types.

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 short sentences, front-loaded with what is returned and followed by the usage cue. No filler or redundant restatement of the tool name.

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?

An output schema exists, so return field explanations are unnecessary, and the single optional parameter keeps complexity low. Still, for a capped list tool the description should say how many tickets are returned by default and how to request more, which it does not.

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 compensate for the single undocumented parameter. It never mentions the limit parameter, its default of 5, or its maximum of 10; 'most recent' only loosely hints at ordering. An agent must open the schema to learn anything about how many tickets come back.

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 resource and scope: 'The account's most recent support tickets with their status.' It is unambiguous what is returned. It doesn't explicitly contrast with siblings, but no sibling tool deals with support tickets, so differentiation is less critical here.

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?

Provides a concrete usage trigger ('what's happening with my ticket'), which is real when-to-use guidance. However, it offers no exclusions, no mention of alternatives for deeper ticket lookup, and no guidance on when other notification or help-KB tools would be more appropriate.

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