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x402-mcp

x402-mcp

Official
by x402node
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

cn402_festival_today

Discover which Chinese festival falls on a given date, or get today's festival if no date is provided. Returns festival names or an empty list.

Instructions

Today's Chinese festival / what Chinese festival is today / 今日节日 / current Chinese holiday / is today a Chinese holiday. Returns the Chinese festival(s) on a given date (or today), if any. Empty list if no festival.

Price: unknown on Base (auto-paid in USDC).

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "cn402_festival_today"
  }
}

Input Schema

NameRequiredDescriptionDefault
dateNoDate YYYY-MM-DD (optional, default today)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.2/5.0
Behavior3/5

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 states the return behavior (list of festivals or empty) but does not disclose side effects, authentication needs, or rate limits. For a read-only lookup, the transparency is adequate but minimal.

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 concise with two sentences and a pricing note. It is front-loaded with the core purpose. The pricing information is not essential but does not significantly detract.

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

Completeness4/5

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

Given the simplicity of the tool (one optional parameter, no output schema), the description provides sufficient context about input and output. It specifies the date format and return type, making it complete enough for agent invocation.

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 coverage is 100% for the single parameter 'date', and the schema already describes the format and optionality. The tool description adds no additional meaning beyond the schema, meeting the baseline 3.

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

Purpose4/5

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

The description includes multiple aliases and clearly states the tool returns Chinese festivals for a given date, with an empty list if none. It specifies the resource (Chinese festivals) and action (return), making purpose clear. However, it does not explicitly distinguish from sibling 'cn402_festival_cn', which could be similar.

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?

No usage guidelines are provided. There is no mention of when to use this tool versus alternatives like 'cn402_festival_cn' or other festival-related tools. The description lacks context on prerequisites or scenarios.

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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