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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered by structured data. The description usefully discloses the return payload fields and notes the bundle price is included, but says nothing about ordering, result size, or whether the catalogue is exhaustive — the remaining behavioral gaps are minor for a read-only list.

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 that leads with the resource and puts the field list and filter note in a sensible order. Dense but no wasted sentences; the field enumeration is long but each item earns its place by telling the agent what comes back.

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 one-parameter, read-only list tool with no output schema, the description adequately compensates by enumerating the returned fields. Missing only ordering/pagination expectations, which is a small gap at this complexity.

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%, so the description must carry the load, and it only says "Filter by access" — effectively restating the parameter name. The enum (all/free/paid) and default are self-explanatory in the schema, but the description adds no meaning about how filtering interacts with the returned bundle price.

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 resource (Tuper spreadsheet templates) and enumerates exactly what each entry contains (name, audience, tabs, USD price, free/paid, page URL, Polar buy link), which makes clear it is a catalogue/listing operation. It does not, however, contrast itself with siblings find_template or get_free_template, so the agent must infer the difference.

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?

"Filter by access" implies the browsing-and-filtering use case, but there is no explicit statement of when to use this instead of find_template (search) or get_free_template (free retrieval). Usage is inferable but not routed.

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