transport_set_time

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

With no annotations provided, the description carries full burden for behavioral disclosure. While 'Set' implies a write/mutation operation, the description doesn't specify whether this requires specific permissions, what happens to current playback state, whether the change is immediate or queued, or any error conditions. For a mutation tool with zero annotation coverage, this is insufficient.

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 a single, efficient sentence that gets straight to the point with zero wasted words. It's appropriately sized for a simple tool with two parameters and front-loads the essential 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 mutation tool with no annotations and no output schema, the description is inadequate. It doesn't explain what happens after setting the time, whether there's confirmation or error feedback, how this interacts with other transport operations, or what layer-specific behaviors might exist. Given the complexity implied by multiple layer types, more context is needed.

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 both parameters completely. The description doesn't add any meaningful parameter semantics beyond what's in the schema - it mentions 'specified layer' and 'playback time' but provides no additional context about valid time ranges, layer behavior differences, or parameter interactions.

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 ('Set the playback time') and target resource ('specified layer'), making the purpose immediately understandable. However, it doesn't differentiate this tool from sibling transport tools like transport_get_time, transport_play, or transport_pause, which all relate to playback control.

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 no guidance on when to use this tool versus alternatives. With many sibling tools for transport operations (transport_get_time, transport_play, transport_pause, etc.), there's no indication of when setting playback time is appropriate versus using other transport controls or timeline operations.

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