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zoharbabin

Google Researcher MCP

by zoharbabin
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Hybrid

Google News Search

google_news_search
Read-only

Find recent news articles on any topic with filters for freshness and sorting by date or relevance. Use to get headlines and snippets from news sources.

Instructions

Search for recent news articles with freshness filters and date sorting.

When to use:

  • Current events, breaking news, time-sensitive topics

  • Need headlines and snippets from news sources

  • Want to restrict by publication date

When to use scrape_page instead:

  • You need the full article content

Key parameters:

  • freshness: hour, day, week, month, year (default: week)

  • sort_by: relevance or date

  • news_source: Restrict to specific domain (e.g., 'bbc.com')

Caching: Results cached for 30 minutes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
queryYesThe news search query
num_resultsNoNumber of news results to return
freshnessNoHow recent the news should beweek
sort_byNoSort order: by relevance or by date (most recent first)relevance
news_sourceNoRestrict to a specific news source domain

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
articlesYesList of news articles
queryYesThe search query that was executed
resultCountYesNumber of articles found
freshnessYesFreshness filter that was applied
sortedByYesSort order used

Tool Definition Quality

A4.7/5.0
Behavior4/5

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

Annotations already declare readOnlyHint and openWorldHint. Description adds caching (30 min) and implies results are headlines/snippets, but could mention output format or rate limits.

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?

Well-structured with headings and bullet points, front-loaded with purpose, no wasted sentences.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given output schema exists, description is complete: covers purpose, usage guidelines, key parameters, and caching. No gaps for an agent to select and invoke correctly.

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 covers all 5 parameters with descriptions (100% coverage). Description adds value by listing key params with defaults and usage hints, exceeding baseline 3.

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?

Description clearly states the tool searches for recent news articles with freshness and date sorting, distinguishing it from siblings like general web search or image search.

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?

Explicitly provides when-to-use (current events, breaking news) and when-to-use-alternative (scrape_page for full article), plus caching info.

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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