1. What is Claude Code?

How Coding Assisstants Works

When you give coding assistant a task, like fixing a bug based on an error message, it follows a process similar to how a human developer would approach the problem:

1. Gather Context - Understanding what the error refers to, which of parts in codebase is affected, and what files are relevant
2. Formulate a plan - Deciding hwo to solve the issue, such as changing code and test to verify the fix
3. Take action - Implementing the solution by updating files and running commands.

How Tool Use Works

Language models by themselves can only process text and return text. That means they cannot actually read files or run commands. If you ask a standalone language model to read a file, it will tell you it doesn’t have that capability.

Coding assistant solve this problem by using tool use:

1. You ask: “What code is written in the main.go file?”
2. The coding assistant adds tool instructions to your request
3. The language model responds: “ReadFile: main.go”
4. The coding assistant reads the actual file and sends its contents back to the model
5. The language model provides a final answer based on the file contents