domain_tech

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

No annotations are provided, so the description carries the full burden. It does disclose genuinely useful behavioral context: the call costs 0.05 USDC on Base via x402, which signals a paid, non-free operation. It stays silent on permissions, rate limits, latency, and failure behavior, and does not tie the payment disclosure to the confirmNewPurchase parameter.

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?

A single front-loaded sentence with the return payload first and cost last. Every clause earns its place except the slightly redundant 'Full technology stack' plus the enumeration, which is acceptable as detail rather than padding.

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 two-parameter tool with no output schema and 100% schema coverage, the description covers what is returned and the payment requirement, which is adequate. It falls short on when to use it versus domain_rank and on what happens on repeated/paid invocations, leaving gaps for a paid tool nested among many lookalike siblings.

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 description coverage is 100%, so both parameters (target and confirmNewPurchase) are already documented with meaning and guidance in the schema. The description adds no additional parameter semantics, which is the expected baseline when the schema does the work.

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?

States a specific resource (technology stack of a domain) and enumerates the categories returned (analytics, frameworks, CMS, servers, payment, ads) plus domain rank. That is clearly distinguishable from generic siblings like whois or site_audit. It does not, however, distinguish itself from the sibling domain_rank even though it also returns domain rank, leaving a routing ambiguity.

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?

There is no when-to-use guidance, no exclusions, and no mention of alternatives. The closest relational cue is the cost note, which tells the agent this is a paid call but not when to prefer it over domain_rank, whois, or traffic_estimate.

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