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

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so safety is covered. The description adds real value with ordering ('newest first') and the fact that results mirror the public templates page, but says nothing about result volume, pagination, or whether the list is complete.

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?

Three short sentences with the key information (what, scope, ordering) front-loaded and zero preamble. The final sentence re-uses the schema's own examples, which is mild redundancy but not harmful.

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?

One optional parameter, full schema coverage, an output schema handling return shape, and annotations covering safety. The description supplies the ordering guarantee and source scope, which is the remaining information an agent needs to call this correctly.

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% and the single optional 'category' param is fully documented in the schema, including slug examples. The description's category sentence merely restates the schema example ('restaurant or landing_page') without adding matching behavior such as case sensitivity or unknown-slug handling.

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?

States a specific verb and resource ('List public templates from the Bunstation app library') and adds the source scope plus ordering ('newest first'). It doesn't explicitly distinguish itself from projects_list or the sibling templates_use, and 'Same projects as the templates page' is a loose analogy rather than a contrast.

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 'public templates' scope and the category-filter mention imply a browse-then-pick workflow, so an agent can infer this is the discovery step before templates_use. However, no sibling is named and there is no statement of when not to use it (e.g., vs. projects_list), so guidance remains implied.

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