mailpal

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

With no annotations, the description bears full responsibility for disclosing behavioral traits. It mentions hardware attestation but does not explain side effects, auth requirements, rate limits, or how to invoke different operations. The description is too brief to provide adequate transparency.

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 very concise (two sentences) and front-loaded with the main purpose. However, it sacrifices necessary detail for conciseness, especially for a gateway tool with multiple operations. It is appropriately sized but lacks structure for parameter guidance.

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?

Given the tool's complexity (gateway with sub-operations), 0% schema coverage, and no annotations, the description is incomplete. It does not explain how to perform the claimed email actions or what the output schema contains, forcing reliance on a meta-operation (readme).

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 0%, and the description only hints at using operation='readme'. It does not explain the purpose of the 'operation' parameter (list of values) or the 'params' parameter, leaving the agent with no semantic understanding of the parameters.

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 tool is for email operations (send, receive, manage) with hardware attestation, distinguishing it from the unrelated sibling 'oneid'. However, it doesn't specify which sub-operations correspond to these actions, relying on a readme operation for detail.

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 vs alternatives, and no explicit when-to-use or when-not-to-use advice. The only hint is to call with operation='readme' for documentation, which is a usage instruction but not a guideline for selection.

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