"""Qualification-only fixed SDK date fact; never a production entrypoint.

Needle 3.0.1 otherwise adds a wall-clock minute on agent construction. This
matches its documented default date prefix at one preregistered instant, using
the ordinary system parameter; no SDK/model/flags/thresholds are modified.
"""
import re
import gateway

DATE_FACT='date: 2026-10-17 Sat 00:00'
original_build=gateway._build_agent


def fixed_date_build(tools,system):
    text=system or ''
    if 'date:' not in text and not re.search(r'\d{4}-\d{2}-\d{2}',text) and not text.lstrip().startswith('{'):
        text=DATE_FACT+('; '+text if text.strip() else '')
    return original_build(tools,text)


gateway._build_agent=fixed_date_build
app=gateway.app