mail_registered_participants

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

The description aligns with annotations (non-read-only, non-destructive). However, it does not disclose behavioral details such as whether conditions affect sending, whether emails are sent immediately, or if there are rate limits. The 'openWorldHint' annotation suggests the output may not be fully specified, but this is not elaborated.

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 that is direct and free of unnecessary words. It communicates the essential purpose without redundancy.

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 email-sending mutation tool with two parameters, the description covers the core action. However, it does not mention that the tool uses survey's registration email settings or that it only sends to registered participants (assumed). The conditions parameter and its impact on the behavior are left unexplained.

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% with parameter descriptions. The description adds no extra meaning beyond the schema. The 'overrideAllConditions' parameter remains vague; the description does not clarify what 'conditions' refer to (e.g., participant eligibility or email content).

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 clearly states the action ('send registration emails') and the target ('registered participants of a survey'). It is specific and distinguishes from sibling tools like 'remind_participants' which handle reminder emails, but the distinction is implicit.

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?

No guidance on when to use this tool versus alternatives (e.g., 'remind_participants'). No conditions or prerequisites are mentioned. The description only states the action without context for selection.

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