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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds the meaningful context that these are company-scoped, user-uploaded templates distinct from a builtin catalog, but says nothing about ordering, pagination, or empty-result behavior.

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 tight sentences with the scope constraint front-loaded and zero filler. The parenthetical and the catalog contrast both earn their place.

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 simple, read-only, single-parameter list tool with an output schema present, the description covers scope and the key distinction from the builtin catalog. The only shortfall is that it does not disambiguate from its nearest siblings.

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?

With a single required parameter at 100% schema coverage, the schema does the documentation work; the description only implies the company scoping that companyId encodes. Baseline 3 is appropriate since the description adds no format or semantics beyond the schema.

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 company-scoped user-uploaded templates') and scopes the retrieval to company-level user templates. It distinguishes itself from the builtin catalog, but it does not distinguish itself from the closer siblings documents_get_user_template or documents_list_documents, so an agent still has to reason about which list/get variant to pick.

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?

'Separate from Lovie's builtin catalog' implicitly tells the agent when this tool applies (user templates, not builtins), which is genuine routing value. However, there is no explicit when-to-use vs documents_get_user_template, documents_create_from_user_template, or generic document listing, and no stated prerequisites beyond the company scope.

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