Code Agent

Writes, debugs & generates code · Claude Code CLI · Aider

The $0 AI Architecture Stack · 2026

What is the Code Agent?

The Code Agent writes, debugs, and generates code as part of the workflow. Claude Code CLI is a terminal-native agent that understands your whole repository and makes multi-file changes, while Aider pairs an LLM with your local git repo to implement features and commit changes automatically.

Tools in this Layer

🅰️ Claude Code CLI

Agentic coding in your terminal — repo-aware, multi-file edits, tests, and git.

🟩 Aider

Pair-program with an LLM directly in your local git repository.

Cost

$0 / free tier

Aider is free and open-source; it can run against local Ollama models at $0.

Explore the Full $0 AI Stack

1 Frontend Layer 2 Agent Orchestrator 3 RAG Pipeline 4 LLM Layer 5 Tool Use via MCP 6 Code Agent 7 Data Layer 8 Deployment Layer