List ZeptoMail templates

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

Annotations already communicate readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds that the tool is scoped to one explicit Agent and depends on the prior agent lookup. It does not disclose pagination, ordering, or return format, but these are minor given the annotations.

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 tight sentences with no filler. The core action and the most important usage note are front-loaded, and every word contributes to correct invocation.

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 read-only listing tool, the critical dependency on zeptomail_list_agents is explicit and the schema covers pagination bounds. The absence of an output schema means the return shape is not described, which is a minor gap but not a blocker since the resource and listing behavior are clear.

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 only 33%, and the description mostly restates what the agentKey schema field already says: pass the exact mailagent_key returned by zeptomail_list_agents. It adds little meaning for limit and offset, which rely on names and numeric constraints rather than explanatory descriptions.

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: 'List templates in one explicit ZeptoMail Agent.' It also conveys the agent-scoped nature, which separates it from listing agents or cross-agent template operations. However, it does not explicitly distinguish itself from sibling tools like zeptomail_find_templates or zeptomail_export_templates.

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 a clear prerequisite: use zeptomail_list_agents first and pass the exact returned mailagent_key. This is strong contextual guidance for when this tool should be called. It does not, however, state when to prefer alternatives such as zeptomail_find_templates instead.

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