garageband_set_ui_value

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

With no annotations, the description must fully disclose behavioral traits. It mentions reliance on Accessibility but does not explain what happens on invalid path or value, whether the tool requires special permissions, or if it triggers side effects. This leaves significant gaps for a mutation tool.

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, focused sentence that front-loads the core purpose. It avoids redundancy, but given the parameter clarity deficit, slightly more detail would be warranted without sacrificing conciseness.

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 absence of annotations and output schema, a tool that manipulates UI via Accessibility requires more context about prerequisites, error states, and return behavior. The description is too brief to cover these aspects.

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%, so the description should compensate. It only mentions 'path' and 'value' generically, without specifying expected formats (e.g., path syntax, value type for sliders vs text fields). This is insufficient for an agent to correctly invoke the tool.

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 identifies the tool as setting a value of a GarageBand UI element by path, specifying it is useful for sliders and editable fields. This distinguishes it from sibling tools like clicking or searching, though it could be more explicit about the path format.

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 only hints at usage ('useful for sliders and editable fields when supported by Accessibility') but does not say when this tool is preferred over alternatives like garageband_click_ui_path or garageband_ui_search_set, nor does it provide any when-not-to-use guidance.

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