aircall_create_webhook

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

Annotations already convey readOnlyHint=false and destructiveHint=false, so the description's 'Create' aligns with those. However, the description adds little beyond that—no mention of validation, side effects, or response behavior. It is not contradictory, but fails to enrich the behavioral picture.

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, succinct sentence that immediately states the action and subject. It is front-loaded with the verb 'Create' and contains no filler words or redundant information—every word earns its place.

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 simplicity (2 required params, no output schema) the description is minimally adequate. However, it omits useful context like the requirement that events must be chosen from the allowed enum (though the schema lists them) or that the URL should be publicly accessible. It is neither grossly incomplete nor thorough.

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 100% (both url and events have descriptions). The description's 'at a URL' simply restates the schema's url description, and it adds no additional semantics for the events array beyond what the schema provides. Baseline score of 3 applies.

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 verb 'Create' and the resource 'new webhook' with its purpose ('to receive real-time event notifications at a URL'). It is specific and unambiguous, though it does not explicitly distinguish itself from sibling webhook tools like update or delete.

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 (e.g., update_webhook, delete_webhook). It only states what the tool does, leaving the agent to infer usage context from sibling names.

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