Cursor

Cursor とは？

Cursor is an AI code editor built on the VS Code codebase. It combines a familiar editing experience with AI features that can autocomplete code, answer questions about a project, and carry out multi-file changes through an agent that works inside the editor. It is aimed at professional developers and teams who want AI assistance built into their daily editor rather than added as a separate tool. Because it shares its foundation with VS Code, most extensions, themes and keybindings carry over. Its main difference is how deeply the AI is tied to the whole codebase, including project indexing, configurable rules and a choice of models from several providers.

Cursor の主な機能

• Tab autocomplete

  Predicts multi-line edits and the next change you are likely to make as you type.

• Agent mode

  Plans and applies changes across multiple files, and can run terminal commands with your approval.

• Codebase chat

  Answers questions about your project using an index of the repository.

• Inline editing

  Rewrites a selected block of code from a short natural language instruction.

• Project rules

  Lets you store coding conventions and instructions that the AI follows in every session.

• Model choice

  Supports models from several AI providers so you can pick one per task.

Cursor の使い方

1. 01Download and install Cursor for macOS, Windows or Linux from the official website.
2. 02Import your existing VS Code extensions, themes and settings during setup.
3. 03Open a project folder so Cursor can index the codebase.
4. 04Use Tab completion while typing, or open the chat panel to ask questions or give the agent a task.
5. 05Review the proposed diffs and accept or reject each change before committing.

Cursor のユースケース

• Refactoring large codebases

  Apply consistent changes across many files while reviewing each diff.

• Learning an unfamiliar project

  Ask questions about how modules connect before making changes.

• Building features faster

  Let the agent draft new components, tests and wiring from a description.

• Fixing bugs

  Paste an error and let Cursor trace likely causes and propose a fix.

Cursor のメリットとデメリット

Cursor に関するよくある質問