bevigil_get_urls

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

Discloses that results may include internal/staging endpoints not publicly indexed, a useful behavioral nuance. No annotations exist, so the description adds some transparency but doesn't cover permissions or response format beyond stating a list of full URLs.

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?

Three efficient sentences; purpose, use case, and caveat each earn their place. No fluff.

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 single-parameter read tool, covers what it does, what it returns, and result caveat. Lacks explicit alternative guidance or pagination info, but sufficient given simplicity.

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 provides full parameter documentation for 'domain' with format constraints (no protocol/paths). Description adds no additional parameter semantics, so 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?

Clearly states it retrieves URLs associated with a domain from mobile app analysis. The verb 'Get' plus resource 'URLs' and scope 'domain' distinguishes from sibling tools like get_subdomains or get_hosts.

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?

Explicitly mentions being useful for finding API endpoints, web paths, and resources referenced by apps, giving clear context for when to invoke. Does not address when not to use or alternative tools, so no exclusions.

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