set_loop_length

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

The description is brief and does not disclose any behavioral traits beyond the basic action. With no annotations, the description should clarify if there are side effects, constraints, or required permissions, but it does not.

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 with no wasted words. It is front-loaded with the action and resource.

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?

The description lacks context about the overall workflow (e.g., whether set_loop must be enabled first) and does not explain return values or side effects. For a tool with one parameter, it is minimally adequate but could be more helpful.

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 description adds that the length is 'in beats', which provides unit context beyond the schema. However, with 0% schema coverage, more detail (e.g., valid range, rounding behavior) would be beneficial.

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 resource ('arrangement loop length'), and the unit ('beats'). It distinguishes itself from sibling tools like set_loop (which toggles loop mode) and set_loop_start (which sets the start point).

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, such as set_loop or set_clip_looping. No prerequisites or conditions for use are mentioned.

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