Tuanjie UI Toolkit Manager

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

Annotations already declare destructiveHint: true, so the description does not need to repeat that. The description adds the note that 'Additional action-specific parameters are passed through unchanged', which gives insight into how the tool handles extra parameters. However, it does not elaborate on potential side effects or overwrite behavior beyond what annotations imply, so it adds only modest behavioral context.

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 concise: two sentences with no fluff. The first sentence states the purpose and lists the supported actions, and the second clarifies parameter handling. The key information is front-loaded, making it easy to scan.

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 is not complete enough for an agent to use the tool correctly. While it lists the action names, it does not explain what each action does or what parameters each requires. The schema also lacks descriptions, and the 'additionalProperties' are not enumerated. The agent is left with significant ambiguity about how to construct a valid call, especially for actions like 'create_uxml' or 'link_uss_to_uxml'.

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 schema has only the 'action' parameter with an enum and allows additional properties. The description lists the action values, which duplicates the enum, but also explains that extra parameters are passed through unchanged, which clarifies the additionalProperties behavior. However, it does not specify what those action-specific parameters are, so it only partially compensates for the 0% schema description coverage.

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's role: 'Creates and links UI Toolkit assets' and enumerates four specific supported actions. This distinguishes it from sibling tools like unity_asset or unity_shader by targeting UI Toolkit resources specifically. It lacks a bit of precision on what 'links' means, but the action list helps.

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 does not provide any guidance on when to use this tool versus alternatives. It does not mention conditions, prerequisites, or contrast with other Unity tools such as unity_asset or unity_shader. The agent is left to infer usage from the purpose statement alone.

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