emails_create

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

With no annotations provided, the description carries full burden for behavioral disclosure. 'Create a new email record' implies a write operation but doesn't specify permissions needed, whether it's idempotent, what happens on failure, or what the response contains. It lacks critical context for a mutation tool.

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 extremely concise at just 5 words, which is efficient. However, this conciseness comes at the cost of completeness - it's under-specified rather than optimally structured. It's front-loaded but lacks necessary detail.

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 complex creation tool with 2 parameters (one being a nested object with 16+ properties), 0% schema description coverage, no annotations, and no output schema, the description is severely inadequate. It doesn't explain what constitutes a valid email record, how associations work, or what the tool returns.

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. It mentions no parameters at all, while the schema shows 2 complex parameters (properties and associations) with many nested fields. The description adds zero semantic value beyond what's in the schema structure alone.

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 'Create a new email record' clearly states the action (create) and resource (email record), which is better than a tautology. However, it doesn't distinguish this tool from its sibling tools like emails_batch_create or emails_update, nor does it specify what an 'email record' entails beyond the basic concept.

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?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, when to choose batch operations (emails_batch_create), or how it differs from update operations. The agent must infer usage from the tool name alone.

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