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

No annotations are provided, so the description carries the full burden of explaining behavior. 'Path discarded' gives one concrete trait, but it does not say whether the operation is read-only, what validation or parsing rules apply, what the return value looks like, or whether the URL is network-accessed. The word 'Path' is also ambiguous because the input schema includes a `path` parameter and a `url` parameter.

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?

The description is short and has no filler, which is good, but it is too terse to be genuinely well-structured. The sentence 'Path discarded.' is ambiguous and does not earn its place because an agent cannot tell if it refers to a URL path, a file path, or the schema's `path` parameter.

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 9 optional parameters, no required parameters, no output schema, and no annotations, a two-sentence description is not enough to invoke the tool correctly. The sibling tool list contains several similar URL/shape handlers, and nothing in the description tells an agent what result to expect or which parameters should be supplied together.

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 100%, so the baseline remains 3. The description adds only the Figma-URL qualifier and implies the `url` parameter matters, but it fails to clarify the role of the other 8 optional parameters or why a shape-like figma-URL tool accepts such unrelated fields.

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 names a specific verb and resource: 'Parse a Figma file URL.' It is reasonably distinct from sibling tools like normalize-url or browser-url-ok because it targets Figma URLs specifically. The added 'Path discarded' gives a small behavioral hint, though it is not enough to fully separate it from all related URL/shape tools.

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?

There is no guidance about when to use this tool versus the many nearby URL, shape, and validation siblings. No prerequisites, exclusions, or alternative tool names are mentioned, so the only usage signal is a vague inference from 'Parse a Figma file URL.'

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