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Blog — AI Prompts & Prompt Engineering — Page 4 | PromptABCD

AI Prompts & Prompt Engineering

Practical guides, templates, and tips for Claude, ChatGPT, Gemini, and beyond.

All Agent Loop Engineering AI Agents AI Harness AI Writing Autonomous AI Agents ChatGPT Prompts Claude Prompts CLI AI Agents Cloud AI Agents Coding with AI Gemini Prompts Marketing & Copywriting Multi-Agent Systems Productivity Prompt Engineering

AI Harness

Limiting Network Access in Your Harness

Default-deny beats blocklists for agent harness network isolation. This guide gives you a copy-paste egress allowlist and the proxy setup that enforces it.

September 8, 2026·8 min read

AI Harness

Isolating Untrusted Code With Containers

Running agent-written code in a bare subprocess is not a sandbox. This teardown rebuilds it with real agent harness container isolation using Docker flags that actually hold.

September 8, 2026·9 min read

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AI Harness

Security Hardening for an AI Agent Harness

An injection turned a helpful agent into a data-exfiltration tool. This walkthrough of agent harness security shows the incident and the allowlist-first fixes that stopped it.

September 8, 2026·9 min read

AI Harness

Turning a Prototype Harness Into Production Code

Your prototype agent loop worked in the demo and broke in production. Here's how to turn it into a production agent harness with timeouts, retries, and clean shutdown.

September 8, 2026·10 min read

Coding with AI

AI Prompts for Web Scraping

A scraper that worked for a day then broke silently cost a marketer a week of bad data. Learn AI prompts for web scraping that handle the failures nobody warns you about.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Data Science with Python

Most data science AI advice is wrong: it optimizes for clever code, not correct analysis. See AI prompts for data science with Python torn down from vague to reliable.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Machine Learning Code

Ever wonder why AI writes ML code that trains fine but leaks data between splits? This case study shows AI prompts for machine learning code that catch it before you do.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Kotlin and Android Development

Picture debugging a coroutine leak an AI wrote at 5pm on a Friday. Learn AI prompts for Kotlin and Android development that get coroutines, Compose, and lifecycle right.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Swift and iOS Development

Apple ships a new Swift version every year, and AI defaults to the old one. Learn AI prompts for Swift and iOS development that stay current — copy-ready and explained.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Flutter Development

One vague prompt cost a Flutter dev an afternoon of state-management bugs. See the AI prompts for Flutter development that fix it — before and after, fully broken down.

September 7, 2026·8 min read

Coding with AI

AI Prompts for Mobile App Development

Most mobile dev AI guides are wrong about where prompts help most. This case study shows AI prompts for mobile app development that cut a real feature build in half.

September 7, 2026·8 min read

Coding with AI

Prompt Engineering for GitHub Copilot

Wondering why Copilot's suggestions miss the mark? Learn prompt engineering for GitHub Copilot — comment patterns, context tricks, and fixes that improve every suggestion.

September 7, 2026·8 min read