Get a cited research brief every morning

from clickruntime import on_trigger, credentials, notify, http, state

def claude(model, prompt, **extra):
    resp = http.post("https://api.anthropic.com/v1/messages",
                     headers={"x-api-key": credentials.secret("ANTHROPIC_API_KEY"), "anthropic-version": "2023-06-01"},
                     json={"model": model, "max_tokens": 1024, "messages": [{"role": "user", "content": prompt}], **extra},
                     timeout=120)
    resp.raise_for_status()
    return resp.json()

@on_trigger
def run(event):
    sent = set(state.get("sent_urls") or [])
    msg = claude("claude-sonnet-5-5",
                 "Find what's new on EU AI Act enforcement. Give 5 bullet points, each with its source URL. "
                 f"Skip these already-reported URLs: {sorted(sent)[-50:]}",
                 tools=[{"type": "web_search_20250305", "name": "web_search", "max_uses": 5}])
    text = "".join(b["text"] for b in msg["content"] if b["type"] == "text")
    urls = {c["url"] for b in msg["content"] if b["type"] == "text" for c in b.get("citations") or []}
    if not urls - sent:
        return {"new": 0}
    notify.email_me("EU AI Act enforcement brief", text + "\n\nSources:\n" + "\n".join(sorted(urls - sent)))
    state.set("sent_urls", sorted(sent | urls)[-500:])
    return {"new": len(urls - sent)}