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

Annotations already declare readOnlyHint=true, non-destructive behavior, and openWorldHint=true, so the description carries a reduced burden. The endpoint path ('GET /v2/templates/{id}') adds minor confirmation of the read operation, but no permission, error, or response-shape context beyond that.

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 short sentences, front-loaded with the action and immediately followed by the endpoint. There is no wasted language and the key retrieval scope is clear.

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 single-resource GET with complete schema coverage and annotations covering safety, the description is sufficient to select and invoke the tool. It could add a small amount about what a template represents or expected failure behavior, but that is a minor gap for this complexity level.

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 100% and the sole parameter is already documented as a GUID template id. The description adds only 'by id', which is already captured by the schema, so the baseline of 3 applies.

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 ('Get one template by id') and makes the singular lookup-by-id scope clear. It distinguishes retrieval from listing implicitly, but does not name a sibling such as list_templates, so it falls short of full sibling differentiation.

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 phrase 'by id' implies the tool is used when a template GUID is already known, but there is no explicit guidance on when to use this versus list_templates or other retrieval tools. Usage is only implied.

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