catalogueInspect every live Synthex Forge x402 route, including its price, payment rail, and free or paid status, without making a payment.
Read the LIVE Synthex Forge x402 catalogue: every route, its price, its rail and whether it is free or paid. No payment required — this is the free tool.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
v1.0.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false. The description adds useful behavioral context beyond those annotations: the catalogue is LIVE and requires no payment, which matters for an agent choosing a free discovery route. It does not describe rate limits or response ordering, but those are minor given the zero-parameter, read-only nature of the 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?
Two short sentences, front-loaded with the primary action and immediately followed by the free/payment distinction. Every clause contributes useful information and there is no repetition.
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 zero-parameter, read-only catalogue tool with no output schema, the description is nearly complete: it names the fields returned and clarifies that no payment is required. A minor gap is the absence of any mention of result size, pagination, or response structure, though 'every route' suggests a full listing.
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?
This tool has zero parameters, so the baseline is 4. The description does not need to explain parameter semantics, and the empty input schema is consistent with the described no-argument catalogue read.
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 uses a specific verb and resource ('Read the LIVE Synthex Forge x402 catalogue') and lists the fields returned (route, price, rail, free/paid). It distinguishes itself from paid siblings by emphasizing 'No payment required — this is the free tool,' though it does not explicitly name or contrast with close alternatives such as v1_x402_index.
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 phrase 'No payment required — this is the free tool' provides clear usage context for free catalogue lookup. However, the description gives no explicit when-not guidance and does not name alternatives for deeper x402 inspection, such as v1_x402_quote.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.