LLM Prompt Engineering for DevOps Automation

LLMs are becoming infrastructure. Not just chatbots — actual components in automation pipelines. But getting reliable, parseable output requires disciplined prompt engineering. Here’s what works for DevOps use cases. The Core Problem LLMs are probabilistic. Ask the same question twice, get different answers. That’s fine for chat. It’s terrible for automation that needs to parse structured output. The solution: constrain the output format and validate aggressively. Pattern 1: Structured Output with JSON Mode Most LLM APIs now support JSON mode. Use it. ...

February 19, 2026 Â· 6 min Â· 1138 words Â· Rob Washington

Edge Computing Patterns for AI Inference

Running AI inference in the cloud is easy until it isn’t. The moment you need real-time responses — autonomous vehicles, industrial quality control, AR applications — that 50-200ms round trip becomes unacceptable. Edge computing puts the model where the data lives. Here’s how to architect AI inference at the edge without drowning in complexity. The Latency Problem A typical cloud inference call: Capture data (camera, sensor) → 5ms Network upload → 20-100ms Queue wait → 10-50ms Model inference → 30-200ms Network download → 20-100ms Action → 5ms Total: 90-460ms ...

February 19, 2026 Â· 8 min Â· 1511 words Â· Rob Washington

LLM API Integration Patterns: Building Resilient AI Applications

Integrating Large Language Model APIs into production applications requires more than just calling an endpoint. Here are battle-tested patterns for building resilient, cost-effective LLM integrations. The Retry Cascade LLM APIs are notorious for rate limits and transient failures. A simple exponential backoff isn’t enough — you need a cascade strategy: 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 import asyncio from dataclasses import dataclass from typing import Optional @dataclass class LLMResponse: content: str model: str tokens_used: int class LLMCascade: def __init__(self): self.providers = [ ("anthropic", "claude-sonnet-4-20250514", 3), ("openai", "gpt-4o", 2), ("anthropic", "claude-3-haiku-20240307", 5), ] async def complete(self, prompt: str) -> Optional[LLMResponse]: for provider, model, max_retries in self.providers: for attempt in range(max_retries): try: return await self._call_provider(provider, model, prompt) except RateLimitError: await asyncio.sleep(2 ** attempt) except ProviderError: break # Try next provider return None The cascade falls through primary to fallback models, attempting retries at each level before moving on. ...

February 17, 2026 Â· 5 min Â· 898 words Â· Rob Washington

Semantic Caching for LLM Applications

Every LLM API call costs money and takes time. When users ask variations of the same question, you’re paying for the same computation repeatedly. Semantic caching solves this by recognizing that “What’s the weather in NYC?” and “How’s the weather in New York City?” are functionally identical. The Problem with Traditional Caching Standard key-value caching uses exact string matching: 1 2 3 cache_key = hash(prompt) if cache_key in cache: return cache[cache_key] This fails for LLM applications because: ...

February 14, 2026 Â· 4 min Â· 830 words Â· Rob Washington

Context Window Management for LLM Applications

One of the most underestimated challenges in building LLM-powered applications is context window management. You’ve got 128k tokens, but that doesn’t mean you should use them all on every request. The Problem Large context windows create a false sense of abundance. Yes, you can stuff 100k tokens into a request, but you’ll pay for it in: Latency: More tokens = slower responses Cost: You’re billed per token (input and output) Quality degradation: The “lost in the middle” phenomenon is real Practical Patterns 1. Rolling Window with Summary Keep a rolling window of recent conversation, but periodically summarize older context: ...

February 13, 2026 Â· 3 min Â· 618 words Â· Rob Washington

Working with LLM APIs: A Practical Guide

How to integrate large language models into your applications — from basic API calls to production-ready patterns.

February 10, 2026 Â· 5 min Â· 949 words Â· Rob Washington

AI Coding Assistants: From Skeptic to True Believer

How AI coding assistants transformed my workflow — and why the skeptics are missing out.

February 10, 2026 Â· 3 min Â· 515 words Â· Rob Washington