create_theme

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

With no annotations, the description carries the burden of behavioral disclosure. It states that new themes are UNPUBLISHED by default and requires 'write_themes' scope. However, it does not mention return value, side effects, or whether the operation is synchronous, but the given details are sufficient for a basic create operation.

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?

Two sentences with no wasted words. The first sentence states the core action and source types; the second adds default behavior and required scope. Front-loaded and efficient.

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 simplicity of the tool (3 parameters, no output schema), the description covers the key aspects: what it does, how to supply the source, the default role, and access scope. It does not describe the return value or errors, but this is acceptable for a straightforward creation tool.

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%, so baseline is 3. The description adds context beyond the schema: it clarifies that 'source' can be a public ZIP URL or staged upload URL, and explains the 'role' enum values (default UNPUBLISHED, DEVELOPMENT for temporary use). This additional semantics justifies a score of 4.

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 verb 'create', the resource 'theme', and the mechanism ('from a public ZIP URL or a staged upload URL'). It distinguishes this tool from sibling tools like update_theme, publish_theme, and delete_theme by specifying the creation action and default status.

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 explicitly guide when to use this tool versus alternatives such as stage_upload or create_theme_files. It implies the need for a URL but lacks 'when not to use' or comparison with other create tools for different resources.

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