aircall_dial

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

Annotations provide only basic hints (not read-only, not destructive). The description adds the key behavioral fact that the user must manually initiate the call, which is useful but limited. No contradiction with annotations.

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?

Two concise sentences, front-loaded with the action and key nuance. No filler or redundant information.

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 two-parameter action with no output schema, the description adequately explains the tool's purpose and the manual-initiation nuance. It could mention prerequisites like the app needing to be installed, but overall it is sufficient for a task-level understanding.

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 both parameters already described. The description adds no additional parameter meaning beyond the schema, so baseline 3 is appropriate.

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 opens the Aircall phone app with a pre-dialed number and explicitly notes the user initiates manually. This distinguishes it from sibling tools like aircall_start_call by emphasizing manual initiation.

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 implies usage (pre-dialing for manual user initiation) but does not explicitly name alternatives or when not to use this tool. Given siblings like aircall_start_call and aircall_transfer_call, explicit guidance would help.

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