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thetadata-mcp

thetadata-mcp

by drmartell
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

stock_list_dates

Discover available trade or quote data dates for a stock by providing its symbol and request type.

Instructions

[FREE] List available data dates for a stock by request type and symbol.

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": {
      "request_type": "<request_type>",
      "symbol": "<symbol>"
    },
    "name": "stock_list_dates"
  }
}

Input Schema

NameRequiredDescriptionDefault
symbolYesThe stock or index symbol, or underlying symbol for options. Specify '*' for all symbols or a comma separated list when appropriate.
request_typeYesThe request type.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the basic read/list action and does not disclose return format, date ordering, pagination, empty-result behavior, or any limitations. The '[FREE]' label is a commercial note, not behavioral transparency.

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?

The description is a single, front-loaded sentence that directly states the tool's purpose and key parameters. There is no filler or redundant restatement, making it highly concise and 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?

For a simple two-parameter list tool with no output schema, the description covers the core purpose but omits return shape and fails to position itself among closely related sibling tools. It is adequate but leaves clear gaps in behavioral context and usage strategy.

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 description adds little beyond what the schema already provides. It confirms that request_type and symbol are the inputs, but introduces no new details about symbol formatting, date ranges, or request type semantics.

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 uses a specific verb ('List') and clearly identifies the resource ('available data dates') and scope ('for a stock by request type and symbol'). This distinguishes it from sibling tools like option_list_dates or index_list_dates, which handle different asset classes.

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 explicit guidance is given on when to use this tool versus alternatives. It does not mention that option_list_dates or index_list_dates should be used for options or indexes, nor does it suggest checking symbol lists first. Usage must be inferred entirely from the tool name and purpose.

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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