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

With no annotations, the description carries the full disclosure burden, but it only states 'Path discarded,' which is ambiguous (URL path vs the path parameter). It does not indicate whether the tool makes network calls, returns a normalized URL, validates format, or is read-only. The 9-parameter schema suggests side effects/ignored inputs, yet none are explained.

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 very brief (two short sentences) and front-loads the primary purpose. However, it omits essential usage and behavioral information, so the brevity is more under-specification than effective conciseness. It earns a neutral 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?

Given no annotations, no output schema, and nine loosely related parameters, the description is nowhere near complete. It fails to explain which parameters are relevant for a Figma URL shape check, what the parse result looks like, or any side effects. An agent cannot reliably invoke the tool correctly from this description alone.

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 100%, so the parameter role is largely documented. The description adds context that the URL is a Figma file URL, narrowing the generic 'HTTPS URL' schema description, and hints that path is ignored. However, it does not clarify how the remaining parameters relate to this tool, so it adds only slight value.

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 action ('Parse') and resource ('a Figma file URL'), making the tool's focus clear. It does not explicitly differentiate from sibling shape tools by naming alternatives, but the resource specificity is sufficient for basic selection.

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 description provides no guidance on when to use this tool over siblings like browser-url-ok or github-repo-shape. It does not mention exclusions, prerequisites, or context. An agent must infer the tool's applicability solely from the name.

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