Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsClaude Code can read a repository, edit files, and run commands, but it needs clear project context and deliberate permission boundaries to be useful as a pair programmer. Start with a concise CLAUDE.md, choose how edits and commands are approved, then add IDE or external-tool integrations only when they address a real task.
What “pair programming” means with Claude Code
The Claude Help Center describes Claude Code as a “terminal agent that reads your repo, edits files, runs commands.” That makes it suitable for repository work, but it does not replace review: you still need to explain the task, decide what it may do, and inspect the resulting changes.
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This guide covers Claude Code. Its instructions apply to a Claude workflow that operates in an existing codebase; they should not be read as a claim about a particular author’s personal installation or tested setup.
Give Claude useful context about the repository
For a project you expect to revisit, start Claude Code in the repository and run /init. It creates a CLAUDE.md file with project context, such as build commands, architecture, and conventions. Review the generated file instead of treating it as authoritative: fix inaccuracies, remove irrelevant material, and keep the most important rules near the top. The Claude Help Center recommends keeping this context concise.
Useful material for CLAUDE.md includes:
- How to install dependencies and run the project’s build, test, and lint commands.
- Where the application’s main components live and how they fit together.
- Conventions that matter for changes, such as generated files to avoid editing or required test coverage.
- Project-specific constraints a new teammate would need before making a change.
When giving a task, identify relevant files or directories directly. A focused request such as “Trace the request flow from src/routes to the data layer; do not edit yet” gives Claude a useful starting point and a clear boundary.
Choose how much autonomy to allow
Claude Code offers different permission behaviors. Choose them according to the task and your comfort with the changes, rather than granting blanket approval by default.
| Mode or approach | What it does | Useful when |
|---|---|---|
| Plan mode | Read-only planning; Claude can inspect and propose an approach without editing files. | You are unfamiliar with the area, or want to review a plan before implementation. |
| Accept edits | Allows file edits while still prompting before commands. | You want Claude to make code changes but keep command execution under review. |
| Manual approval | Prompts for approval before risky edits or commands. | You want to assess proposed actions as they arise. |
Permission behavior and patterns can be managed interactively or through project settings. If you add allowed-command patterns, keep them narrow and limited to what the workflow actually needs. Review unfamiliar shell commands and the files they affect before approving them.
Put instructions in the right place
Not every instruction belongs in CLAUDE.md. Anthropic distinguishes persistent project context from reusable procedures and deterministic automation.
Rank #3
| Mechanism | Best fit |
|---|---|
CLAUDE.md |
Project facts and conventions Claude should have available across work in the repository. |
| Skills | Reusable procedures for tasks you invoke when needed. |
| Hooks | Deterministic actions triggered by a defined event, such as running a check after an edit. |
| Rules, subagents, and output styles | Other instruction and workflow needs that do not fit the three roles above. |
Hooks are especially useful when a step must happen consistently, but inspect the command a hook will run and the conditions that trigger it. Anthropic’s hook guidance describes configuration through settings, including matchers that determine which events activate a hook. A hook should automate a known action, not hide consequential behavior.
Work in the terminal or your IDE
Claude Code can be used from the terminal, and Anthropic documents integrations for VS Code and JetBrains IDEs. Use the environment that fits your existing workflow; an IDE integration is optional rather than a prerequisite for repository work.
For typed languages, configured language-server protocol (LSP) integrations can provide symbol-level navigation and automatic error detection. These capabilities depend on configuring the relevant integrations; do not assume they appear automatically simply because Claude Code is installed.
Add MCP only for a concrete external task
Model Context Protocol (MCP) connects Claude Code to external tools and data. It can be useful when a task genuinely depends on a system outside the local repository, such as an issue tracker. It also expands what information or actions are available to the workflow, so connect only what you need and understand the access it exposes.
Best Value
Project MCP configuration can be stored in .mcp.json or added with the claude mcp add command. After configuring a connection, use /mcp in Claude Code to check it. Start with one integration tied to a specific workflow rather than assembling a collection of connectors in advance.
Use a reviewable task cycle
- Orient: Open Claude Code in the repository. For a recurring project, run
/initand review the resultingCLAUDE.md. - Scope: Describe the outcome, relevant files, constraints, and how you will verify the change. Ask for a plan first when the area or risk is unfamiliar.
- Approve deliberately: Choose a permission mode that matches the task. Review proposed commands and keep any permission patterns as narrow as practical.
- Implement and verify: Ask for the change, then review the diff and run the project’s relevant tests or checks. Treat Claude’s explanation as a guide to review, not as proof that the change is correct.
- Refine the setup: If the same project fact or convention keeps needing explanation, add it to
CLAUDE.md. If a procedure is reusable, consider a skill; if a known action should run consistently, consider a hook.
Keep installation and updates in view
Installation and update behavior depends on the installation method. Anthropic’s setup documentation says native installs update automatically, while Homebrew and WinGet installs do not auto-update by default. Check the current official setup instructions for the commands and supported platforms before installing or changing update methods: Set up Claude Code.
Quick Recap
Official documentation
- Claude Code user FAQ — product description,
/init, permissions, IDEs, MCP, and session workflow. - Steering Claude Code: when to use CLAUDE.md, skills, hooks, and subagents — choosing among customization mechanisms.
- Claude Code power user customization: How to configure hooks — hook configuration and permission details.
- How Claude Code works in large codebases: Best practices and where to start — setup order, LSP, and MCP guidance.
- Claude Code FAQ — permissions, codebase navigation, and integrations.
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