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dracepj

FRED API MCP Server

by dracepj

search_economic_data

Search for economic data series in the FRED database by matching text in series titles and descriptions, with an optional limit on results.

Instructions

Search for economic data series in FRED database.

Args: search_text: Text to search for in series titles and descriptions limit: Maximum number of results to return (default: 10)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
search_textYes
limitNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided; description only states basic search functionality without mentioning rate limits, pagination, error cases, or result behavior.

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?

Concise with main purpose in first sentence; clear Args section. Could have better structure but no redundant information.

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?

Simple search tool with output schema present; description covers core functionality and parameters. Could mention return format but adequate.

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

Parameters4/5

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

Despite 0% schema coverage, description adds meaning for both parameters: search_text searches in titles/descriptions, limit has default. Provides value beyond schema.

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?

Clearly states 'Search for economic data series in FRED database', which specifies verb, resource, and source. Distinguishes from sibling tools like get_economic_series and get_series_info.

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 guidance on when to use search vs other tools. Lacks context on appropriate scenarios or alternatives.

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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