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

Annotations already declare readOnlyHint=true, so the safety profile is covered structurally. The description adds the underlying REST endpoint (GET /macros.json), which tells the agent this is a straight passthrough to Zendesk's public API, but says nothing about pagination, page size, rate limits, or auth requirements.

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 compact sentences with no filler; the purpose statement leads and the endpoint reference is secondary. Nothing can be trimmed without losing 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 read-only list tool with full schema coverage this is close to adequate, but with no output schema the description should at least hint at the return shape or pagination behavior, and it does not. An agent knows what the tool is but not what comes back.

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%, so both optional parameters (access, active) are already documented in the schema, including the 'personal'/'shared' example values. The description adds no additional parameter meaning, which is acceptable given the schema does the work.

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 (List) and resource (macros), and the parenthetical defines what a macro is for an agent that lacks Zendesk domain knowledge. It does not explicitly contrast itself with sibling list tools (list_views, list_groups), but the resource 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 mention of when to prefer zendesk_execute_view or search instead, and no prerequisites or caveats. The only usage signal is the implicit 'list macros' action itself.

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