ui

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

The description lists actions that imply both read (list_controls) and write (create_control, set_theme, layout) operations. Annotations are neutral (no readOnly or destructive hints), so the description adds some context but does not detail side effects, permissions, or state changes.

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, with one sentence and a list of actions. It is front-loaded and efficient. The reference to 'help tool' slightly reduces conciseness but is acceptable.

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?

With 9 parameters and no output schema, the description is incomplete. It does not explain how to use each action, which parameters are relevant per action, or expected return behavior. The schema covers parameter descriptions but not the operational context needed for effective use.

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 100% with all parameters described. The description does not add any parameter meaning beyond the schema, so it meets the baseline. No additional insight into parameter relationships or usage.

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 is for 'UI Control nodes and themes' and lists the four actions. This gives a specific verb-resource pair and distinguishes it from siblings like 'nodes' or 'scenes' by focusing on UI controls and themes.

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 explicit guidance on when to use this tool vs alternatives. The description only mentions 'Use help tool for full docs' but does not indicate conditions, prerequisites, or when to prefer other tools.

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