modify_video

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

The description discloses return values but fails to mention the asynchronous nature, potential side effects, or required permissions. Annotations are absent, so the burden is higher.

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?

Single sentence with no redundancy, but it achieves conciseness at the cost of completeness. It could be longer to add necessary detail.

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?

With 6 parameters, no output schema, and asynchronous behavior, the description is far too sparse to enable correct invocation. It omits critical usage details.

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?

Only 33% of parameters have schema descriptions (model and wait). The tool description adds nothing about the remaining parameters (prompt, source_video_url, timeout_ms, poll_interval_ms), leaving their purpose unclear.

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?

Clearly states it creates a Luma task to modify video, distinguishing it from sibling tools check_pricing and get_task. However, it lacks specificity on what modification entails.

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?

No guidance on when to use this tool versus alternatives, nor any prerequisites or context for invocation.

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