web-search-tavily

Web Search (Tavily API)

Search the web using Tavily's AI-optimized search API. Returns high-quality, structured results with relevance scores and optional AI-generated summaries.

Note: This skill requires a Tavily API key. For basic web search using the agent's built-in capability, see web-search.

When to Use This Skill

Use this skill when:

• You need to find current information not in your training data
• The user asks about recent events, news, or updates
• You need to verify facts or find authoritative sources
• Research requires real-time web data
• Keywords mentioned: search, look up, find online, current, latest, news

Do NOT use this skill when:

• Information is already in your knowledge base and doesn't need verification
• The user asks about historical facts that don't change
• You're working with local files or code (use other tools)
• A more specific skill exists for the task (e.g., documentation lookup)

Prerequisites

Before using this skill, ensure:

• TAVILY_API_KEY environment variable is set with a valid API key
• Deno is installed (for running the search script)
• Internet access is available

Get a Tavily API key at: https://tavily.com

Quick Start

Run a simple search:

deno run --allow-env --allow-net=api.tavily.com scripts/search.ts "your search query"

Example with AI-generated answer:

deno run --allow-env --allow-net=api.tavily.com scripts/search.ts "React 19 new features" --answer

Script Usage

deno run --allow-env --allow-net=api.tavily.com scripts/search.ts [options] "query"

Options

Search Parameters

Topic Types

• general (default): Broad web search across all content types
• news: Prioritizes news articles and current events
• finance: Focuses on financial information and market data

Search Depth

• basic (default): Fast search, good for most queries
• advanced: Deeper search with more comprehensive results (slower, higher API cost)

Time Range

Filter results by recency:

• day: Last 24 hours
• week: Last 7 days
• month: Last 30 days
• year: Last 365 days

Domain Filtering

Control which sites appear in results:

# Only search documentation sites
scripts/search.ts "React hooks" --include docs.react.dev,developer.mozilla.org
 
# Exclude social media
scripts/search.ts "AI news" --exclude twitter.com,reddit.com

Output Format

Human-Readable Output (default)

🔍 Search: "React 19 new features"

Found 5 results in 234ms

📝 AI Answer:
────────────────────────────────────────────────────────────
React 19 introduces several new features including...
────────────────────────────────────────────────────────────

1. React 19 Release Notes
   https://react.dev/blog/2024/04/25/react-19
   React 19 is now available on npm! This release includes...
   Score: 0.987

2. What's New in React 19
   https://example.com/react-19-features
   A comprehensive overview of React 19's new features...
   Score: 0.945

JSON Output (--json)

{
  "query": "React 19 new features",
  "results": [
    {
      "title": "React 19 Release Notes",
      "url": "https://react.dev/blog/2024/04/25/react-19",
      "content": "React 19 is now available on npm...",
      "score": 0.987,
      "published_date": "2024-04-25"
    }
  ],
  "answer": "React 19 introduces several new features...",
  "response_time": 234
}

Result Fields

Examples

Example 1: Current Events Search

Scenario: Find recent news about a technology topic

scripts/search.ts "OpenAI GPT-5 announcement" --topic news --time week --answer

Expected output: Recent news articles about GPT-5, with an AI-generated summary

Example 2: Documentation Lookup

Scenario: Find specific technical documentation

scripts/search.ts "Deno deploy edge functions tutorial" --depth advanced --results 10

Expected output: Comprehensive results from documentation and tutorial sites

Example 3: Fact Verification

Scenario: Verify a specific claim or statistic

scripts/search.ts "world population 2024" --include un.org,worldbank.org,census.gov --json

Expected output: JSON results from authoritative sources for programmatic verification

Example 4: Financial Research

Scenario: Research market information

scripts/search.ts "NVIDIA stock analysis 2024" --topic finance --answer

Expected output: Financial analysis and market data with AI summary

Common Issues and Solutions

Issue: "TAVILY_API_KEY environment variable is not set"

Symptoms: Script exits immediately with API key error

Solution:

1. Get an API key from https://tavily.com
2. Set the environment variable:

   export TAVILY_API_KEY="your-api-key-here"
3. Or run with the variable inline:

   TAVILY_API_KEY="your-key" deno run --allow-env --allow-net=api.tavily.com scripts/search.ts "query"

Issue: "Invalid Tavily API key"

Symptoms: 401 authentication error

Solution:

1. Verify your API key is correct (no extra spaces)
2. Check if your API key has expired
3. Verify your Tavily account is active

Issue: "Tavily API rate limit exceeded"

Symptoms: 429 error response

Solution:

1. Wait a moment and retry
2. Reduce request frequency
3. Consider upgrading your Tavily plan for higher limits

Issue: No results returned

Symptoms: Empty results array

Solution:

1. Try broader search terms
2. Remove domain filters that might be too restrictive
3. Check if the topic exists online
4. Try --depth advanced for harder queries

Limitations

This skill has the following limitations:

• Requires active internet connection
• API rate limits apply based on your Tavily plan
• Results depend on Tavily's index coverage
• Cannot access paywalled or login-required content
• Real-time accuracy depends on Tavily's crawling frequency
• Maximum query length and result count have API limits

Related Skills

• research-workflow: For comprehensive research projects that use multiple searches with planning and synthesis