move_device_left

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

No annotations are provided, so the description carries the full burden. It only states the action ('move left') but does not disclose edge cases (e.g., what happens if the device is already leftmost), whether the action is reversible, or any side effects. There is no mention of return values or error 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?

The description is very concise: one sentence for the purpose and a structured list for parameters. Every word earns its place, and the most important information is front-loaded.

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 simplicity of the tool (two integer parameters, no output schema, no annotations), the description covers the essential action and parameters. However, it omits details like zero-based vs. one-based indexing, what happens when the device is already leftmost, and whether the operation returns anything, which could be important for correct invocation.

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 0%, but the description includes a parameter list with brief meanings: 'track_index: The index of the track containing the device' and 'device_index: The index of the device to move.' This adds valuable semantic context that the schema lacks, though it does not clarify indexing conventions or constraints.

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 states exactly what the tool does: 'Move a device one position to the left in the device chain.' This is a specific verb+resource+direction, and it clearly distinguishes from the sibling tool move_device_right.

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?

There is no guidance on when to use this tool versus alternatives. It does not mention constraints, prerequisites, or when not to use it. The description simply explains the action without contextual usage advice.

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