get_arrangement_length

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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it does not disclose whether this is a safe read-only operation, what exact loop settings are returned (e.g., loop start, loop end, enabled state), or any potential side effects. It only states 'Get the length and loop settings' without elaborating on the return structure or any behavioral nuances.

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 sentence, efficiently conveying the tool's purpose without any wasted words. It is well-structured and immediately understandable.

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?

As a simple getter with no parameters and no output schema, the description gives a basic understanding but leaves ambiguity about the exact structure of 'loop settings' and what the return value contains. For a tool this simple, the description is adequate but could be more complete by listing the specific fields or the return format.

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?

The tool has zero parameters, and the schema coverage is vacuously 100%. Since there are no parameters to explain, the description does not need to add parameter semantics. Baseline for 0 params is 4, and no parameter-related gaps exist.

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 gets 'the length and loop settings of the arrangement,' using a specific verb ('get') and resource ('arrangement'). This distinguishes it from sibling tools like set_arrangement_loop, which sets loop settings, and get_playback_position, which deals with playback position rather than arrangement length.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, typical use cases, or scenarios where another tool would be more appropriate. The description simply states what it does without contextual usage.

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