calls_create

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

With no annotations provided, the description carries the full burden of behavioral disclosure. 'Create a new call record' implies a write/mutation operation, but it doesn't disclose any behavioral traits: no information about required permissions, whether the operation is idempotent, what happens on failure, rate limits, or what the response contains. This leaves significant gaps for an agent to understand how to use this tool safely and effectively.

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 appropriate for a simple statement of purpose. However, this conciseness comes at the cost of completeness - it's arguably under-specified rather than efficiently informative. The structure is front-loaded with the core action but lacks any supporting context.

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 complexity (2 parameters with nested objects, no annotations, no output schema, and 0% schema description coverage), the description is severely incomplete. For a creation tool that likely requires specific data formatting and has behavioral implications, the single sentence provides inadequate context for an agent to use this tool correctly without additional documentation or trial-and-error.

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?

The schema description coverage is 0%, meaning none of the parameters are documented in the schema. The description provides no information about parameters beyond the generic 'call record' reference. With 2 complex parameters (properties and associations) containing nested objects and multiple sub-properties, the description fails to compensate for the complete lack of schema documentation, leaving the agent with no guidance on what data to provide.

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 call record' clearly states the verb ('Create') and resource ('call record'), making the basic purpose understandable. However, it doesn't distinguish this tool from its sibling 'calls_batch_create' or other create operations in the server, leaving ambiguity about when to use this specific tool versus batch alternatives.

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. With sibling tools like 'calls_batch_create' and 'calls_create' both available, there's no indication whether this is for single-record creation versus batch operations, nor any context about prerequisites, permissions, or typical use cases.

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