create_url_list_detector

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

No annotations are provided, so the description bears the full burden of behavioral disclosure. It only states that a detector is created and that its resource name must be used later. It does not mention permissions, side effects, reversibility, or response details, which is a significant gap for a mutation tool.

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 two sentences: the first states the tool's purpose, and the second provides essential usage context. It is front-loaded and contains no fluff or repetition of schema information.

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?

An output schema exists, so return values are covered. The description explains the next step (referencing the resource name in a rule), which is helpful. However, for a creation tool with no annotations, it lacks details about prerequisites, permissions, or how this detector type differs from siblings, leaving the context incomplete.

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 input schema has 100% coverage of parameter descriptions, but the tool description adds no parameter-specific meaning. The fact that it is a 'URL list' detector is already captured in the schema's 'urls' parameter description. No additional detail such as URL format or validation rules is provided.

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 starts with a clear, specific verb and resource: 'Creates a new DLP URL list detector.' It distinguishes itself from sibling tools like create_regex_detector and create_word_list_detector by specifying the URL list type, and it explains the broader role of detectors as building blocks for DLP rules.

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 context that the created detector must be referenced in a create_chrome_dlp_rule condition, but it does not explicitly state when to choose this tool over alternative detector types (regex, word list). The usage guidance is general to all detectors and does not differentiate the URL list variant.

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