Compare one Hugeicon across styles

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

Read-only safety is already covered by readOnlyHint=true, and openWorldHint is hinted at by the word 'installed', which implies results depend on the environment's style set. The description still omits useful behavior: whether missing styles are skipped, whether size/color apply uniformly to every returned SVG, and roughly how many results to expect. With annotations carrying the safety profile, this is adequate but thin.

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 tight sentence with the core behavior front-loaded and no filler. It may be slightly too terse for the multi-output nature of the tool, but there is no wasted phrasing.

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 read-only 3-parameter tool with no output schema, the description conveys what comes back (SVG per installed style) and why. Minor gaps remain around output cardinality and the fact that styling parameters apply to all variants, but nothing blocks a correct call.

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 67% and the schema already documents name (with a pointer to search_icons), size, and color. The description adds nothing about how size or color propagate to the multi-style output, which is the one piece of non-obvious semantics here. Baseline 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 result ('returns the same icon as SVG') plus scope ('in every installed style'), which distinguishes it from get_icon (single icon) and list_styles (style catalog). It doesn't name a sibling explicitly, so differentiation is inferred rather than stated.

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 trailing clause 'to choose between them' implies the use case (style selection), but there is no explicit when-to-use framing, no statement of when to prefer get_icon or list_styles instead, and no note that the icon name should come from search_icons.

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