live_set_loop

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

With no annotations, the description carries the full burden. It usefully discloses the return value ('Returns the transport state') and that enable is optional, but says nothing about failure modes when Studio One is not running, what happens if only one of start/end is supplied, or whether the loop range is validated/rejected.

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?

Front-loaded with the core action, then the format hint, then the optional flag and return value — no wasted words and no redundancy with the schema.

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 small 3-parameter tool with no annotations and no output schema, the description covers purpose, parameter formats, the optional flag, and the return value. It leaves edge-case behavior (partial ranges, no-op calls since zero params are required) unexplained.

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 coverage is 67% and the schema documents the dual number/string format for start/end, but 'enable' has no schema description at all; the description fills that gap by explaining it turns looping on or off. It also reinforces the bar-position format, adding value beyond the schema.

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?

States a specific verb+resource (set the loop range) on a named target (running Studio One) and covers the optional enable behavior. It does not distinguish itself from the closely related sibling live_set_transport, which also manipulates transport state, so an agent must infer the boundary.

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?

Usage is implied rather than stated: 'in the running Studio One' signals the precondition that the DAW must be running, but there is no when-to-use/when-not guidance and no mention of live_set_transport as the alternative for non-loop transport changes.

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