AI Engineering in Practice9 min read
Service layer for AI agents: decoupling logic from routes
How a service layer in an AI agent codebase decouples business logic from HTTP routes. The pattern, the tests, and the refactor from a fat route.
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17 posts in total
AI Engineering in Practice10 min read
Modular architectures for agentic AI: 4 layer pattern
How to structure an agentic AI codebase so it survives growth. The 4-layer pattern, the cut lines, and the refactor that keeps a project shippable.
LLM Engineering11 min read
Stateful agents with LangGraph: beyond linear chains
Why linear LangChain chains fall over on real agents and how LangGraph's stateful graphs replace them. The state model, loops, and upgrade path.
AI Engineering11 min read
Context window management for production AI agents
How to manage context windows in production AI agents. The 4 strategies that keep long sessions bounded without losing critical context.
AI Engineering11 min read
Persistent memory for coding agents: cross-session context
How coding agents remember context across sessions. The memory store, the recall pattern, and the 3 kinds of memory every agent should keep.
AI Engineering12 min read
Custom tools for coding agents: beyond the built-ins
How to design custom tools for coding agents that are not read, edit, or bash. The naming rules, the schema patterns, and the 3 custom tools that pay off.
AI Engineering10 min read
ripgrep for coding agents: fast code search at scale
Why ripgrep is the right code search tool for coding agents. The speed, the flags, and the wrapper that turns rg into a safe agent tool.
AI Engineering11 min read
Edit tool design: how coding agents modify files safely
How to design an edit tool a coding agent can use without wrecking files. The string-match rule, the dry-run pattern, and the 50-line safe edit function.
AI Engineering12 min read
Designing modular tool integrations for coding agents
How to structure tool integrations so an agent stays clean as it grows. The registry pattern, schema-first design, and the 80-line dispatcher that scales.
AI Engineering in Practice11 min read
Docker non-root user: securing your agentic AI container
Why every agentic AI container should run as a non-root user. The Dockerfile pattern, the permission gotchas, and the attack it actually prevents.
AI Engineering in Practice12 min read
LangGraph persistence: thread models for production agents
Why production LangGraph agents need a postgres checkpointer and thread model. How persistence survives restarts, and the trap that loses every chat.
AI Engineering12 min read
The event loop inside a coding agent: how it thinks
How a coding agent loop actually works. The minimal while loop that turns a chatbot into Claude Code, and the 4 states every agent cycles through.