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

Annotations already declare readOnlyHint=true, so the safe-read profile is covered. The description adds that results are scoped to "the coach's" templates and lists the returned fields, which is useful, but it says nothing about pagination defaults, ordering, or filtering 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?

One front-loaded sentence with no wasted words; the resource and output shape come first. It is efficient, though the brevity leaves real gaps for a five-parameter tool.

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?

With five undocumented parameters, no output schema, and no pagination or filter semantics, the description is thin for this tool's complexity. The inline field list partially stands in for a missing output schema, but the invocation-side details an agent needs are absent.

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 0% across five parameters (tag, search, onlyMine, pageSize, pageNumber) and the description never mentions any of them. The returned-field list (tags) and the phrase "the coach's" faintly hint at tag filtering and onlyMine, but the description fails to compensate for the entirely undocumented 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 (List) and resource (coach's workout plan templates) and enumerates the fields returned. It is clearly distinct from list_workout_plans and get_workout_plan_template in substance, but never names a sibling or rule out confusion with them.

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?

No when-to-use guidance, no prerequisites, and no named alternative. The phrase "the coach's" weakly implies the owning-coach scope, but the agent gets no cue about when to prefer this over get_workout_plan_template, list_workout_plans, or the diet-template sibling.

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