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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so safety and scope are covered. The description adds only that results come from the team library, and says nothing about pagination defaults, result limits, or how the 12 filters combine — modest added value over the annotations.

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 core behavior front-loaded and no filler. Its brevity is the problem only in the sense of under-specification, not verbosity.

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?

An output schema exists, so return shape need not be described, but for a 12-parameter, zero-required filtering tool with 0% schema coverage the description is far too thin. An agent cannot tell which filters are combinable, what "availability" values mean, or how pagination behaves.

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 0% across 12 parameters, so the description carries the full burden — and it documents none of them. Filters like search_text, categories, availability (an ambiguous enum), equipment_ids, collection_names, muscle_group_ids, coach, skill_level, locale, team_id, page and per_page are entirely unexplained.

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 ("Returns exercises from the team library"), which is clear enough to tell it apart from listing tools like list_stock_programs or list_team_workouts. It does not, however, distinguish itself from the singular sibling get_team_exercise.

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?

Gives three usage contexts (browse, find exercises for workouts, manage the library), which implies when to call it. It never names an alternative or a when-not condition, e.g. when to prefer get_team_exercise for a single item or search_text filtering over list_sample_workouts.

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