Agentic development basics

The Agentic Systems Series - The Agentic Systems Series

Welcome to the complete guide for building AI coding assistants that actually work in production. This comprehensive three-book series takes you from fundamental concepts to implementing enterprise-ready collaborative systems.

Writing about Agentic Engineering Patterns

I’ve started a new project to collect and document Agentic Engineering Patterns—coding practices and patterns to help get the best results out of this new era of coding agent development …

How coding agents work - Agentic Engineering Patterns

How coding agents work - Agentic Engineering Patterns

Agentic Engineering Patterns - Simon Willison's Weblog

Patterns for getting the best results out of coding agents like Claude Code and OpenAI Codex. See my introduction for more on this project.

Prompts I use - Agentic Engineering Patterns

Prompts I use - Agentic Engineering Patterns

AGENTS.md

AGENTS.md is a simple, open format for guiding coding agents. Think of it as a README for agents.

First impressions: Delta - Cameron's writing

A look at Zed's new agent development tool.

Agentic Engineering Management

To what extent AI is OK to use in software development might be debated, but in general, the idea is not a controversial one anymore. The debate rather moved on from code completion and simple PR summarizations to Agentic Engineering, where an execution loop allows an AI Agent to function

Collaborator

A place to create with agents.

New capabilities for building agents on the Anthropic API | Claude

Claude now offers code execution, MCP server connections, file storage, and extended prompt caching through the API—giving developers powerful tools to build agents that analyze data, connect to external systems, and maintain context for longer periods of time.

LukeW | Agent Management Interface Patterns

As an increasing number of AI applications evolve to agents doing work for people, agent management becomes a critical part of these product's design. How can p...

User & Agents

A community focused on shaping the future of user-agent systems. - User & Agents

User & Agents

A community focused on shaping the future of user-agent systems. - User & Agents

Agentic manual testing - Agentic Engineering Patterns

Agentic manual testing - Agentic Engineering Patterns

Agent Skills

AI coding agents take the shortest path to done, which usually means skipping the specs, tests, and reviews that make software reliable at scale. Agent Skill...