Clip/audio transport

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

Annotations already indicate readOnlyHint=false and destructiveHint=false, and the description adds behavioral specifics: it creates a synchronized container with deterministic layout and binds Play/Loop/Speed controls across both lanes. This goes beyond the annotations by describing what the created structure includes, which is useful context 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?

The description is two sentences, front-loaded with the main action, and every clause adds meaningful detail (structure, optionality, determinism, controls, use-case). 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 9-parameter creation tool with no output schema, the description adequately sets expectations by describing the created structure (video lane, audio lane, Null outputs, controls) and the deterministic layout. It doesn't describe return values, but that is not essential for a creation tool. A small gap is lack of mention of error conditions or prerequisites, but overall it is complete enough.

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 the baseline is 3. The description adds some meaning by referencing the Play/Loop/Speed controls and optional Audio File In CHOP lane, which map to parameters like loop, speed, autoplay, and include_audio. However, it doesn't provide substantial additional semantics beyond what the schema already documents.

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's purpose with a specific verb ('Create') and resource ('synchronized clip transport container'), and enumerates its components (Movie File In TOP video lane, optional Audio File In CHOP lane, Null outputs, controls). It explicitly positions the tool as a reusable building block before clip launchers, VJ decks, or stream/output chains, distinguishing it from sibling tools.

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 provides explicit usage context: 'Use it as a reusable building block before clip launchers, VJ decks, or stream/output chains.' This clearly indicates when to use this tool in relation to higher-level alternatives. It doesn't explicitly say when not to use it, but the relationship to alternatives is clear, which is strong guidance.

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