How does Agentic Search handle real-time pagination and query refinement?

Intermediate · 2 min read · AI Agents & MCP

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Short answer: Agentic Search replaces single-shot search engine queries with multi-turn agentic loops, allowing an LLM to evaluate search snippet relevance, issue refined follow-up search queries, handle pagination, and open specific web page links until target information is fully retrieved.

Detail

Single-shot RAG fails when initial web search results return generic marketing text or fragmented snippets.

[Initial Query "NVIDIA Q3 revenue"] ──► Web Search ──► Returns Generic Marketing Snippets
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[Agent Evaluates Snippets] ──► Query Refinement: "NVIDIA Q3 2024 earnings release 10-Q filing pdf"
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[Page Reader Tool] ◄── Pagination / Link Selection ◄── Targeted Web Search

Agentic Search Execution Mechanics

Initial Broad Search: Issue preliminary search query.
Relevance Critique: Inspect returned title/snippet lists.
Targeted Deep Dive: Execute specific sub-tools: click_link(url), paginate_results(page=2), or refine_query(new_query).
Context Synthesis: Extract exact text paragraphs into agent memory.

Example

Python concept illustrating agent query refinement logic:

python

def agentic_search_step(current_results: list[dict], search_tool, query_refiner_fn) -> str:
    # Check if current snippets contain target metric
    has_answer = any("revenue" in r["snippet"].lower() for r in current_results)

    if not has_answer:
        # Refine search query with specialized keywords
        refined_query = query_refiner_fn("NVIDIA financial Q3 SEC filing 10-Q")
        new_results = search_tool(refined_query)
        return f"Refined search issued: '{refined_query}'. Found {len(new_results)} new matches."

    return "Target information located in current snippets."

Interview tips

Discuss web scraping rate limits, domain blocking, and HTML-to-Markdown conversion (using tools like Tavily, Perplexity API, or Firecrawl).
Highlight preventing infinite web browsing loops via step budgets and link extraction caps.

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