current_date_context (prompts/current_date.py)

Provides per-request UTC date context for LLM agents to ground responses in time.

# Source: https://github.com/CopilotKit/OpenTag | License: MIT | Copyright 2026 CopilotKit
# Provided via justclaw.it.com; keep this notice with the code.
"""Per-request calendar context for the agent."""

from datetime import datetime, timezone

from langchain.agents.middleware import dynamic_prompt
from langchain.agents.middleware.types import ModelRequest
from langchain_core.messages import SystemMessage


def current_date_context(now: datetime | None = None) -> str:
    """Return authoritative UTC date guidance for the model."""
    current = now or datetime.now(timezone.utc)
    if current.tzinfo is None:
        current = current.replace(tzinfo=timezone.utc)
    current = current.astimezone(timezone.utc)
    formatted_date = f"{current.strftime('%B')} {current.day}, {current.year}"
 

... (truncated -- full source via MCP)