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Pricing Page Extract

util_pricing_page_extract
Read-onlyIdempotent

Extract pricing page signals including plan names, free trial hints, CTA patterns, and sales routes from any URL to analyze pricing strategies.

Instructions

Extract pricing-page signals like plan names, free trial hints, CTA patterns, and sales routes. Delx Agent Utilities are separate from the free witness protocol and may expose x402 utility pricing.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYesPricing page URL
timeoutNoTimeout in seconds (1-15)
Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false. The description adds context about Delx Agent Utilities and x402 utility pricing, which informs the agent about special behaviors beyond the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences long with no redundant information. It front-loads the purpose and adds context in the second sentence. Slightly more structure could improve readability, but it is efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description lists example outputs (plan names, free trial hints, etc.) but does not specify return format or structure. With no output schema, more detail would help, but the examples provide moderate guidance.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% (both parameters have descriptions). The description does not add additional meaning beyond the schema, so a baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool extracts pricing-page signals like plan names, free trial hints, CTA patterns, and sales routes. It also distinguishes itself by mentioning it is separate from the free witness protocol and may expose x402 utility pricing, setting it apart from other util tools.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not provide any guidance on when to use this tool compared to siblings like util_page_extract or util_contact_extract. No when-to-use or when-not-to-use context is given, leaving the agent to infer usage.

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

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