Set Clip Properties Batch

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

Beyond the annotations, the description adds meaningful behavioral guarantees: it preflights every target property, reads back each requested value, and never reports a partial batch as verified. This gives the agent a concrete model of validation and verification behavior.

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 tightly written sentences front-load the core action and limit, then add the key verification guarantee. There is no filler or redundant restating of the title.

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 output schema, one required parameter, and full schema coverage, the description adequately covers preflight, verification, and partial-batch behavior. It stops short of describing full failure semantics, but nothing essential for invoking the tool correctly is missing.

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%, so the baseline is 3. The description adds the valuable 'up to 16 clips' constraint on the items array and summarizes the semantic categories (Motion/Opacity values), which the schema does not explicitly cap.

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 action ('Apply'), the resource ('Motion/Opacity values to up to 16 clips'), and a distinctive batch scope. It also conveys the preflight behavior, making it easy to distinguish from single-clip siblings like set_clip_properties.

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 'up to 16 clips' wording implies this is for batch updates rather than single-clip edits, but it never explicitly states when to choose this over alternatives or when not to use it. It provides clear context but no exclusions or named alternatives.

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