Search for autonomous research agents

import os, json, anthropic, requests

claude = anthropic.Anthropic()
HEADERS = {"Authorization": f"Bearer {os.environ['SIFTQ_API_KEY']}"}

def siftq(q: str, scope: str = "webpage", size: int = 10) -> list[dict]:
    r = requests.post(
        "https://api.siftq.com/v1/search",
        headers=HEADERS,
        json={"q": q, "scope": scope, "size": str(size)},
        timeout=15,
    )
    r.raise_for_status()
    data = r.json()
    return data.get("webpages") or data.get("scholars") or data.get("podcasts") or []

TOOLS = [{
    "name": "search",
    "description": "Search the web. Use scope=scholar for papers, news for recency.",
    "input_schema": {
        "type": "object",
        "required": ["q"],
        "properties": {
            "q": {"type": "string"},
            "scope": {"type": "string", "enum": ["webpage", "news", "scholar"]},
        },
    },
}]

def research(topic: str, max_steps: int = 8) -> str:
    messages = [{"role": "user", "content": f"Research: {topic}"}]
    for _ in range(max_steps):
        resp = claude.messages.create(
            model="claude-sonnet-4-6", max_tokens=2048,
            tools=TOOLS, messages=messages,
        )
        if resp.stop_reason == "end_turn":
            return resp.content[0].text
        for block in resp.content:
            if block.type == "tool_use":
                hits = siftq(block.input["q"], block.input.get("scope", "webpage"))
                messages.extend([
                    {"role": "assistant", "content": resp.content},
                    {"role": "user", "content": [{"type": "tool_result",
                        "tool_use_id": block.id,
                        "content": json.dumps(hits[:5])}]},
                ])
    return "Step budget exhausted."

print(research("How has GPU pricing evolved in 2024-2025?"))