voicestudio_call_api

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

With annotations already declaring destructive=false/idempotent=false (here destructiveness is disclosed), the description still adds real context: supported payload shapes (JSON, forms, multipart files, finite SSE) and the non-obvious behavior that binary outputs become timed file links. The mutation enumeration adds specificity beyond destructiveHint=true, though it does not cover auth or rate limits.

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?

Sentences are dense but each carries a distinct fact (capabilities, output handling, mutation risk, alternative tool), and the core purpose leads. Slightly list-heavy in the mutation clause but no filler.

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 an open-world, destructive, parameterless-described API caller with no output schema, the description covers capability and safety reasonably well. However, the absence of any operation_id provenance or payload-field mapping leaves an agent without enough to construct a correct call from the description alone.

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% across 7 parameters, so the description must compensate and largely does not: it never mentions operation_id, json_body, path_params, query, or headers. The loose references to 'JSON, forms, repeated multipart files' hint at json_body/form/files but do not map to any named parameter, leaving an agent to guess field usage.

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?

States a specific verb ('Execute') and resource ('one discovered HTTP operation against the configured backend'), so the agent knows it is a generic API caller rather than a domain tool. It does not explicitly distinguish itself from the sibling voicestudio_call_native, which is the nearest alternative, so it falls short of a 5.

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?

Gives a clear constraint ('use only within the user's request') and routes long-running work to a named alternative ('Use start_job for long renders'). It lacks guidance on when to prefer this over call_native or how operation_id is discovered, so it is strong but not exhaustive.

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