create_call

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states 'Add a call' and the endpoint, without covering permission requirements, side effects, required fields, or response behavior. This is minimal disclosure 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?

'Add a call. (POST /calls)' is short, front-loaded, and free of filler. It is concise, though arguably too terse for a 12-parameter creation tool, but the conciseness dimension itself is handled well.

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 12-parameter creation endpoint with no output schema and no annotations, the description omits operational context such as required fields, admin-only userId behavior, and call outcome semantics. The schema explains parameter meaning, but the description does not provide enough surrounding context for confident invocation.

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%, so all 12 parameters are already documented and the baseline is 3. The description adds no additional parameter semantics beyond the HTTP method, but it does not need to compensate for missing schema coverage.

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 uses a clear verb ('Add') and resource ('a call') and includes the HTTP endpoint (POST /calls) for unambiguous identification. It signals creation, distinguishing it from get_call/list_calls/update_call at a basic level, though it does not explicitly name those siblings.

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?

There is no guidance on when to use this tool versus update_call or list_calls, and no mention of prerequisites such as personId, phone, and isIncoming. The sibling list shows alternatives exist, but the description does nothing to route an agent toward the correct choice.

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