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Crawlora MCP

by net.crawlora
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yahoo_finance_ticker_splits

Read-only

Fetch split events for one Yahoo Finance symbol. Use yahoo_finance_ticker_dividends or yahoo_finance_ticker_capital_gains for other corporate-action records; use yahoo_finance_ticker_history for the adjusted price series.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "symbol": "<symbol>"
    },
    "name": "yahoo_finance_ticker_splits"
  }
}

Input Schema

NameRequiredDescriptionDefault
symbolYesYahoo Finance symbol such as AAPL.

Output Schema

NameRequiredDescriptionDefault
dataYesThe tool result payload (shape varies per tool; see each tool's docs resource).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4.2/5.0
Behavior3/5

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

Annotations already declare readOnlyHint and openWorldHint, and an output schema covers the return shape, so the bar is lower. The description adds the single-symbol scope but says nothing about time coverage, pagination, or whether all historical splits are returned by default.

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

Conciseness5/5

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

Two sentences, zero waste, with the core purpose front-loaded ahead of the sibling routing. Every clause earns its place.

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?

For a single-parameter read tool with annotations covering safety and an output schema covering returns, the description is nearly complete. The only minor gap is any statement about the time range of splits returned.

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%, so the symbol parameter is already documented as a Yahoo Finance ticker such as AAPL. The description only restates the single-symbol constraint, adding minimal meaning beyond the schema; baseline 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?

States a specific verb (Fetch) plus resource (split events) and scope (one Yahoo Finance symbol). It also names the sibling corporate-action tools and the price-series tool it is not, so an agent can disambiguate without opening any schema.

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

Usage Guidelines5/5

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

Explicit routing: dividends and capital gains for other corporate-action records, history for the adjusted price series. This names alternatives and the condition that selects each, leaving nothing to inference.

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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