list_templates

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

With no annotations, the description carries the full burden of behavioral disclosure. It clearly signals a read-only list and adds the notable 'you own the full source' trait, which is useful context. It does not mention pagination, output format, or any restrictions, leaving some behavioral uncertainty.

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, front-loaded sentence with no filler. Every clause adds value: the subject, the tech stack, and the ownership guarantee.

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 zero-parameter, no-output-schema tool, the description is nearly complete: an agent knows what the list contains and the key ownership fact. It loses the top score only because it does not explicitly differentiate from sibling list_threejs_recipes or suggest a follow-up like get_template.

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 tool has zero parameters, so there is no parameter meaning to add beyond the schema. Per the baseline for no-parameter tools, this is appropriate; the description supplies useful context about what is being listed without needing to document parameters.

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 states a specific verb ('List') and a specific resource ('AETumi's premium interactive 3D website templates') with scoping details (Three.js / WebGL, React / Next.js). The 'templates' wording helps distinguish it from sibling list_threejs_recipes, and the ownership clause adds meaningful specificity.

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 intended use is implied: call this tool when the user wants a catalog of AETumi templates. However, it does not explicitly contrast with list_threejs_recipes or direct the agent to get_template for further detail, so the guidance is not as strong as it could be.

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