It can be used in projects Claude
Claude Code is Anthropic's programming agent, which mainly runs in the terminal. You go into a project directory and then start it; it searches for code by task, reads files, modifies content, runs tests, and other commands.
Ordinary chat tells you "how you can change it", Claude Code can actually make changes in your project and bring the command results back to the next step.
This is not to say that Claude cannot write code for web pages, but the working position is different. Web chat usually relies on you uploading or pasting materials; Claude Code starts from the current working directory and finds the files related to the task on its own.
What does Claude Code often do?
- Understand unfamiliar projects: Find where a function enters and which modules it passes through.
- Fix errors: Combine error reports, logs and code to locate the cause, then modify and test.
- Complete cross-file tasks: add functionality, refactor interfaces, update tests and documentation.
- Handle Git work: review history, summarize changes, prepare commits or merge requests.
- For scripting and CI: output text or JSON via non-interactive mode.
It's particularly suitable for tasks where the answer doesn't stop at a code snippet. For example, "fixing the problem that the registration form does not have validation", the real completion usually requires finding the form, interface, type, test and error copy, and running the project check.
The core difference between chatting with ordinary Claude
The input of a normal chat is mainly the content you send into the conversation, and the output is mainly a reply. Input to Claude Code also includes project files, Git status, and command output; the output can directly become file changes.
Therefore, the two also have different risks. When a web page answer is written incorrectly, you do not need to copy it; if the programming agent obtains write and terminal permissions, the error action will fall into the workspace. It's for people who can look at diffs, understand commands, and run acceptances, not just people who can describe requirements.
- Just want to ask about concepts or discuss solutions: regular chat is lighter.
- There is only a small piece of independent code: copying it into the chat can also solve the problem.
- Tasks that depend on the entire repository and require actual modifications: Claude Code is more suitable.
- Required for use in automated scripts: look at non-interactive mode and explicit tool whitelisting.
Permission prompts are not a nuisance, they are part of the product
Anthropic's security description shows that Claude Code works with strict permissions by default: read operations do not necessarily ask every time, and operations such as file editing and Bash commands require corresponding approval; users can view and configure allow and deny rules, or use plan mode to only analyze without modifying or executing.
There is indeed a way to skip the permission prompt in the command line parameters, but the official name itself has "dangerously". Unless the tool is running in an environment that can be discarded, has been isolated, and does not have sensitive credentials, skipping a confirmation should not be considered a default convenience.
- Start with a planned or read-only analysis to make sure it understands the task.
- See the complete command, current directory, and scope of influence before approving it.
- Don't expose passwords, production keys, and unnecessary directories to tasks.
- Check Git diff after modification, and run the original tests and builds.
- Delete, deploy, database migration, and publish operations are confirmed individually.
Best for the first task
Don’t try rebuilding the entire system for your first use. Select a small error that already has steps to reproduce it, and ask it to explain the reason and the files to be modified first, confirm it before making changes, and finally ask to run the specified test and summarize the diff.
If you still don’t know how to read Git diff, restore files, and don’t know how to start a project, you should do these three things first. Claude Code can make changes faster, but it's still up to you to determine whether the changes should exist.
official information
This article comes from the following Anthropic official information, verified on August 17, 2026:
