Fetch Investopedia news on markets, companies, earnings, economy, government, crypto, rates, and personal finance, returning title, URL, byline, and image.
Get Investopedia latest news. Returns the newest Investopedia news stories (markets, companies, earnings, economy, government, crypto, rates, and personal finance news), with title, URL, byline, and image.
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Changes observed during successful MCP inspections.
v1.17.5Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It does disclose the output structure (title, URL, byline, image) and the news categories covered, but it omits potential limits such as the number of stories returned, ordering guarantees, pagination, or update frequency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences and mostly focused. There is minor redundancy between 'latest' in the first sentence and 'newest' in the second, but the second sentence provides valuable specificity about topics and return fields, so the overall structure is efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple zero-parameter news list tool with no output schema and no annotations, the description is largely complete: it states what is returned and the scope. Minor gaps like pagination or a cap on results are non-critical for this tool's simplicity and are partially implied by 'latest news.'
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has 0 parameters and the schema has no properties, so per the baseline for zero-parameter tools, the description need not add parameter details. The schema already fully communicates that no inputs are required.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Get'), the resource ('Investopedia latest news'), and specifies the return fields (title, URL, byline, image) and content categories. However, it does not explicitly differentiate from sibling tools like investopedia_headlines or investopedia_sections, which may overlap in purpose.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description establishes clear context: use this tool to retrieve the newest Investopedia news stories with metadata. It does not, however, mention alternatives or conditions for when not to use it (e.g., when specific article content is needed, use investopedia_article).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.