Production Context Systems

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interface ContextSourceConfig {
  sourceId: string;
  freshnessRequirement: 'realtime' | 'near-realtime' | 'batch';
  maxStalenessMs: number;
  cacheTTLMs: number;
  fallbackBehavior: 'use-stale' | 'omit' | 'error';
  priority: number;
  tokenBudget: number;
}

const contextPipelineConfig: ContextSourceConfig[] = [
  {

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interface ContextVersion {
  id: string;
  version: number;
  createdAt: Date;
  schema: string; // Schema version for deserialization
  checksum: string; // Content hash for integrity
  metadata: {
    source: string;
    processingPipeline: string;
    embeddingModel: string;
    chunkingStrategy: string;
  };

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from dataclasses import dataclass
from datetime import datetime, timedelta
from typing import List, Optional
import statistics

@dataclass
class ContextMetrics:
    retrieval_latency_ms: float
    cache_hit: bool
    context_age_seconds: float
    relevance_score: float
    token_count: int

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import asyncio
import hashlib
import json
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from datetime import datetime, timedelta
from typing import Any, Dict, List, Optional
from enum import Enum
import structlog
import redis.asyncio as redis
from circuitbreaker import circuit

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from dataclasses import dataclass, field
from typing import Dict, List, Optional, Callable
from datetime import datetime, timedelta
import asyncio
from collections import defaultdict

@dataclass
class CostBreakdown:
    source_costs: Dict[str, float] = field(default_factory=dict)
    compute_cost: float = 0.0
    token_cost: float = 0.0
    total_cost: float = 0.0

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from prometheus_client import Counter, Histogram, Gauge, Info
from functools import wraps
import time

# Define metrics
CONTEXT_ASSEMBLY_DURATION = Histogram(
    'context_assembly_duration_seconds',
    'Time spent assembling context',
    ['pipeline', 'version'],
    buckets=[0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0]
)