agent-factory: generate agent auto-parse-email-content-and-extrac

2026-04-07 20:54:30 +00:00
parent 9ac8be2c02
commit 58e98ad062
18 changed files with 549 additions and 0 deletions
--- a/app/nodes/core_node.py
+++ b/app/nodes/core_node.py
@@ -0,0 +1,41 @@
+"""
+This module defines a LangGraph node function that parses raw email content
+and extracts the sender's email address, the email subject, and the email body.
+The function uses an LLM to perform the extraction and returns the parsed
+information in a structured format.
+"""
+
+async def process(state: dict) -> dict:
+    from app.agent import llm
+    from langchain_core.messages import SystemMessage, HumanMessage
+
+    try:
+        email_raw = state.get("email_raw", "")
+        if not email_raw:
+            return {"error": "Missing 'email_raw' input", "phase": "failed"}
+
+        messages = [
+            SystemMessage(content="You are an expert in parsing email content. Extract the sender's email address, the subject, and the body from the provided raw email text."),
+            HumanMessage(content=email_raw),
+        ]
+
+        response = await llm.ainvoke(messages)
+        # Assuming the LLM returns a structured response in the format:
+        # "Sender: <email>\nSubject: <subject>\nBody: <body>"
+        try:
+            lines = response.content.split("\n")
+            sender_email = next((line.split(": ", 1)[1] for line in lines if line.startswith("Sender:")), "").strip()
+            email_subject = next((line.split(": ", 1)[1] for line in lines if line.startswith("Subject:")), "").strip()
+            email_body = next((line.split(": ", 1)[1] for line in lines if line.startswith("Body:")), "").strip()
+
+            return {
+                "sender_email": sender_email,
+                "email_subject": email_subject,
+                "email_body": email_body,
+                "phase": "complete"
+            }
+        except Exception as parse_exc:
+            return {"error": f"Failed to parse LLM response: {str(parse_exc)}", "phase": "failed"}
+
+    except Exception as exc:
+        return {"error": str(exc), "phase": "failed"}