Clip/audio transport

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

Annotations already indicate this is a non-read-only, non-destructive operation. The description adds behavioral specifics: 'synchronized', 'deterministic layout', 'Null outputs', and 'Play/Loop/Speed controls bound across both lanes.' It also notes the audio lane is optional, matching the include_audio parameter. No contradictions with annotations. It could go further by noting what happens when file paths are missing or whether existing container paths are overwritten.

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 sentences with zero filler. The first sentence front-loads the primary action and components; the second sentence provides usage context. Every phrase contributes value, making it a model of concise, structured description.

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 tool with 9 parameters, full schema documentation, and annotations providing safety cues, the description is largely complete. It explains what is created and when to use it. However, since there is no output schema, the description does not disclose whether the tool returns a path or reference to the created container, and it omits potential failure conditions (e.g., invalid file paths). Still, it is well above the minimum viable level.

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 schema already documents each parameter with descriptions. The description only lightly references parameters conceptually (e.g., 'Play/Loop/Speed controls' maps to loop/speed/autoplay, 'optional Audio File In CHOP lane' maps to include_audio/audio_file) but adds no technical detail beyond the schema. Baseline 3 is appropriate.

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 function with a specific verb and resource: 'Create a synchronized clip transport container.' It enumerates the core components (Movie File In TOP video lane, optional Audio File In CHOP lane, Null outputs, deterministic layout, Play/Loop/Speed controls), distinguishing it from generic create tools and sibling tools like create_clip_launcher or create_video_player.

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 a clear use case: 'Use it as a reusable building block before clip launchers, VJ decks, or stream/output chains.' This indicates when to apply the tool and implicitly positions it as a foundation for those downstream systems. However, it does not explicitly state when not to use it or name specific alternative sibling tools, so it falls short of a full 5.

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