tool_compare_sources
Analyze differences and similarities across multiple sources to identify common topics and variations in information.
Instructions
Compare information across multiple sources.
Analyzes differences and similarities between sources.
Args: topic: Topic being compared. sources: List of URLs (2-5) to compare.
Returns: Comparison report with common topics and differences.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| topic | Yes | ||
| sources | Yes |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |
Implementation Reference
- src/devlens/tools/advanced.py:16-65 (handler)The implementation of compare_sources function.
async def compare_sources(topic: str, sources: list[str]) -> str: """Compare information across multiple sources. Args: topic: Topic being compared. sources: List of URLs to compare. Returns: Comparison report showing differences and similarities. Example: >>> report = await compare_sources( ... "Python async", ... ["https://realpython.com/async", "https://docs.python.org/3/library/asyncio.html"] ... ) """ if len(sources) < 2: return "Error: Need at least 2 sources to compare" if len(sources) > 5: sources = sources[:5] # Limit to 5 sources # Fetch all sources in parallel async def fetch_with_title(url: str) -> tuple[str, str, str | None]: """Fetch source and return (url, title, content).""" try: doc = await _scraper.fetch(url, retry=1) return (url, doc.title, doc.content) except Exception: return (url, "Failed", None) results = await asyncio.gather(*[fetch_with_title(url) for url in sources]) # Build comparison report report_lines = [ f"# Source Comparison: {topic}\n", "## Sources\n", ] for i, (url, title, _) in enumerate(results, 1): status = "✓" if results[i - 1][2] else "✗" report_lines.append(f"{i}. {status} [{title}]({url})") report_lines.append("\n## Content Analysis\n") # Extract key terms from each source import re all_words: list[list[str]] = [] for _, _, content in results: - src/devlens/server.py:115-127 (registration)The MCP tool wrapper tool_compare_sources which calls compare_sources.
async def tool_compare_sources(topic: str, sources: list[str]) -> str: """Compare information across multiple sources. Analyzes differences and similarities between sources. Args: topic: Topic being compared. sources: List of URLs (2-5) to compare. Returns: Comparison report with common topics and differences. """ return await compare_sources(topic, sources)