screenshot_urls

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

With no annotations, the description carries the transparency burden. It discloses the output (directory + JSONL) and implies read-only screenshotting, but provides no detail on file location, resource impact, or potential side effects. Basic but not rich.

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 compact and front-loaded with the main purpose. Every sentence serves a purpose: action, usage context, parameter semantics, and return format. No wasted words.

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 the low complexity and lack of output schema, the description provides sufficient context: what it does, when to use it, parameter details, and return value. It omits edge-case behavior but is otherwise complete for a straightforward task.

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?

The description adds clear meaning to each parameter: urls as the list to screenshot, threads as concurrent workers, and timeout as per-request seconds. This fully compensates for the 0% schema description coverage.

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 clearly states the tool's action: 'Take screenshots of multiple URLs using gowitness.' It specifies the resource (URLs) and differentiates from the sibling tool 'screenshot_url' by emphasizing batch processing of multiple URLs.

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 instructs 'Use after gobuster/crawl to visually triage all discovered endpoints at once,' providing a clear when-to-use context. It does not explicitly state when not to use it or name direct alternatives, so it falls short of a full 5.

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