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

With no annotations provided, the description carries the behavioral disclosure burden. 'Public page scrape' suggests a read-only web-scraping operation, likely without an API key, and 'domain breach exposure' implies the kind of result. However, it does not state whether authentication is needed, whether results are limited to what DeHashed's public page shows, or whether rate limits or page-format changes could affect the call.

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 gets to a usable statement quickly. However, the opening 'DeHashed Domain:' repeats the title and adds little value, and the remaining phrase is too compressed to explain the tool's actual behavior or input. It is concise, but some of the text is wasted.

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 the description need not explain return values in detail, but it still omits essential context: what to pass in `q`, how the result should be interpreted, and when this tool should be chosen over similar breach-search siblings. For a one-parameter lookup this is close, but not enough for confident correct invocation.

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 defines only a `q` string with a default and no description, so schema description coverage is 0%. The description implies the parameter is a domain but does not explicitly document that `q` should contain a domain or specify the expected format (e.g., example.com vs www.example.com). The tool name and title do some work, but the description itself provides insufficient parameter guidance.

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 states a specific action ('public page scrape') and a clear resource (DeHashed) with a defined scope ('domain breach exposure'). It is not a tautology and an agent can infer the tool returns breach-related information for a domain. However, it does not explicitly distinguish itself from sibling breach-search tools such as breachdb or breachdirectory.

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 gives no guidance on when to use this tool versus the many sibling breach-related tools (breachdb, breachdirectory, paste_domain, leaklookup, etc.). No exclusions, alternatives, or preferred conditions are mentioned.

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