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e5e35a3 08b77a1 e5e35a3 cc8beab e5e35a3 cc8beab e5e35a3 08b77a1 cc8beab e5e35a3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | import logging
from pathlib import Path
from typing import Any, Dict, List, Optional
from dotenv import load_dotenv
from langchain_openai import ChatOpenAI
from src.core.settings import get_settings
logger = logging.getLogger(__name__)
class ResponseGenerator:
"""
Shared response-generation helper for agents.
Supports:
- Injecting "prompt_content" (agent-specific format rules, constraints, etc.)
- Injecting guardrails from `src/data/guardrail_prompts.md`
"""
def __init__(
self,
model: str | None = None,
include_guardrails: bool = True,
guardrails_path: Optional[str] = None,
):
load_dotenv()
settings = get_settings()
chosen_model = model or settings.models.agent_model
self.client = ChatOpenAI(model=chosen_model)
self.include_guardrails = include_guardrails
self.guardrails_text = ""
if include_guardrails:
if guardrails_path:
path = Path(guardrails_path)
else:
# src/core/ResponseGenerator.py -> src/
src_dir = Path(__file__).resolve().parents[1]
path = src_dir / "data" / "guardrail_prompts.md"
try:
self.guardrails_text = path.read_text(encoding="utf-8").strip()
except Exception:
logger.exception("Failed reading guardrails from %s", str(path))
self.guardrails_text = ""
def generate(
self,
*,
user_query: str,
context_blocks: Optional[List[str]] = None,
system_preamble: str = "",
prompt_content: str = "",
temperature: float = 0.2,
extra_metadata: Optional[Dict[str, Any]] = None,
) -> str:
"""
Generate a response using a consistent system prompt + optional guardrails + prompt_content.
- system_preamble: short role instructions ("education only", etc.)
- prompt_content: agent-specific formatting/rules to append (what the user asked for)
- context_blocks: retrieved excerpts/snippets
"""
system_parts: List[str] = []
if system_preamble:
system_parts.append(system_preamble.strip())
if self.include_guardrails and self.guardrails_text:
system_parts.append("Guardrails (must follow):\n" + self.guardrails_text)
system = "\n\n".join(system_parts).strip() or "You are a helpful assistant."
ctx = "\n\n".join([c for c in (context_blocks or []) if c]).strip()
user_parts: List[str] = []
if prompt_content:
user_parts.append(prompt_content.strip())
user_parts.append(f"User question:\n{user_query.strip()}")
if ctx:
user_parts.append("Context:\n" + ctx)
if extra_metadata:
user_parts.append(f"Metadata:\n{extra_metadata}")
user = "\n\n".join(user_parts).strip()
logger.info(
"ResponseGenerator: include_guardrails=%s prompt_content_len=%d context_blocks=%d",
self.include_guardrails,
len(prompt_content or ""),
len(context_blocks or []),
)
msg = self.client.invoke(
[{"role": "system", "content": system}, {"role": "user", "content": user}],
temperature=temperature,
)
return str(msg.content or "").strip()
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