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get_market_news

Fetch top 20 market news articles by category: general, forex, crypto, or merger. Each article includes headline, summary, and URL.

Instructions

Get general market news feed by category. Categories: general (all markets), forex (currency), crypto (digital assets), merger (M&A deals). Returns top 20 articles with headlines, summaries, and URLs.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
categoryNoNews category (default: general)general
Behavior3/5

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

No annotations provided, so description carries full burden. It discloses return structure (top 20 articles with headlines, summaries, URLs) and category meanings, but lacks details on rate limits, authentication, or pagination.

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?

Three concise sentences: purpose, category list, return format. No superfluous information; front-loaded with key action.

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 simple one-parameter tool, description covers purpose, category options, and return format. Lacks mention of errors or prerequisites, but adequate for a news feed tool.

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?

Schema coverage is 100% with one parameter. Description adds meaning by explaining each enum value (e.g., 'forex (currency)'), going beyond the schema's basic description.

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?

Description clearly specifies 'Get general market news feed by category' with a list of categories. It distinguishes from siblings like 'get_news' by implying a broader market scope, but does not explicitly differentiate.

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 this tool versus similar tools like 'get_news' or 'summarize_news'. The description only states what it does, not when or when not to use it.

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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