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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description adds only that the output enumerates permitted and forbidden capabilities, with no detail on response shape, error behavior for invalid tiers, or licence source/version.

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 filler; the purpose and scope appear immediately. The parenthetical enumeration is slightly redundant with the schema enum, which keeps it from a perfect score.

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 trivial, read-only, single-enum-parameter tool with full annotation coverage, the description is largely sufficient: it names the resource and the nature of the result. No output schema exists, so some indication of return structure would have been a bonus, but nothing critical is missing.

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%, but there is a single required parameter whose enum already lists free/standard/extended. The description repeats those same values in parentheses without adding semantics—such as what distinguishes the tiers or whether the value is case-sensitive.

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?

The description states a specific verb ('Get') and resource ('Fanio licence tier') and clarifies the returned content as what the tier 'allows and forbids'. Sibling tools (get_pack, get_scene, list_packs, search_scenes) operate on unrelated resources, so differentiation is inherent in the resource name rather than stated explicitly.

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?

Usage is only implied: an agent can infer this is the lookup for licensing terms of a given tier. There is no explicit when-to-use guidance, no prerequisites, and no mention of alternatives or when this tool is unnecessary.

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