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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered structurally. The description contributes one genuinely new behavioral fact — the catalogue is public and spans all authors, unlike an author-scoped listing — but it says nothing about result volume, pagination limits, or total counts despite perPage maxing at 48.

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?

A single front-loaded sentence with no filler, which is structurally clean, but its brevity is achieved by omission rather than economy. There is no wasted wording to cut, yet the sentence is too thin to justify the space it saves.

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?

Six optional parameters, two enums, no output schema, and low schema coverage mean the description should explain what a result entry contains and how paging terminates. Instead it gives one clause, leaving an agent unable to predict return shape or pagination behavior for a 15-category, sortable catalogue.

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 description coverage is only 33%, so the description needs to carry meaning for q, page, sort, and perPage, and it does not. Only the implicit "any author" framing touches on filtering; search syntax, sort semantics, and pagination behavior remain undocumented in both places.

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 ("Browse the public template catalogue") and adds the scope qualifier "any author", which signals this is an unfiltered listing rather than a single-item read. It does not name templates_get as the alternative for fetching one template, so sibling differentiation is only implied.

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?

There is no when-to-use or when-not-to-use guidance: nothing tells the agent this is for discovery versus templates_get for retrieval, and nothing explains how to paginate, which sort is default, or when to stop. Usage must be inferred entirely from the name and schema.

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