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Claude Code

Claude Code

Delegate bug fixes and multi-day migrations from your terminal, IDE, Slack, or browser

ターミナル開発ツールCoding AgentTerminalRefactoringPaid only

Claude Code is Anthropic's agentic coding tool that reads a codebase, plans changes, edits files, runs tests, and opens pull requests from the terminal, IDE, Slack, web, or mobile. It runs locally with permission checks and supports multi-hour refactors and migrations.

公式サイトへ

更新日

2026-10-21

対応プラットフォーム

Windows / macOS / Linux / Web / iOS / Android

有料

Paid: Claude Code is included in Claude Pro, Max, Team, and Enterprise plans, or billed at standard API pricing through a Claude Console account. The site lists Pro at $20 per month when billed monthly, with usage limits; confirm current Max, Team, and Enterprise prices on the official page.

* 料金は参考情報です。最新の料金は公式サイトをご確認ください

Claude Code
claude.com

Claude Codeの主な機能

  • Codebase Onboarding

    Maps project structure and dependencies in seconds without manually selecting context files.

  • Long Refactors

    Builds a plan, asks clarifying questions, follows imports across the repository, and keeps working through failures.

  • Issue to PR

    Works with GitHub, GitLab, and command-line tools to read issues, write code, run tests, and open pull requests.

  • Cross-surface Control

    Steer and review the same work from the terminal, VS Code, JetBrains, Slack, a browser, mobile, or the desktop app.

Claude Codeのおすすめ用途

Terminal-first engineers

Keep exploration, edits, tests, and follow-ups in one terminal loop with direct access to the local repository.

Platform and backend teams running migrations

Hand off multi-hour refactors that follow imports across the repo, run tests, and keep going when something breaks.

Teams working through GitHub or GitLab issues

Turn issues into tested pull requests without bouncing between the tracker, editor, and command line.

長所

  • Runs locally and asks for permission before changing files or running commands
  • Works across terminal, VS Code, JetBrains, Slack, web, mobile, and the desktop app
  • Handles long-running refactors and migrations that follow imports and run tests
  • Included in existing Claude Pro, Max, Team, and Enterprise plans

注意点

  • Requires a paid Claude plan or Console API billing, with no standalone free tier
  • Usage limits apply, and Anthropic may change plans and prices
  • Fast mode costs more per token and is still a research preview

Claude Code のクイックスタートと実践のコツ

クイックスタート

  1. 1

    Start claude at the repo root and make it read before it writes: ask where a module's entry point and data flow live, then check it opened the right files.

  2. 2

    Hand over one narrow task, such as fixing a single failing unit test, and watch which commands it runs and which files it touches.

  3. 3

    Let it run the tests and open the PR itself, then move on to larger refactors once the output is reviewable.

実践のコツ

Split long tasks into plan, confirm, execute: ask for the change plan and file list only, cut the extra items, then approve. Keep a CLAUDE.md in the repo with directory conventions, test commands, and off-limits folders. It beats repeating the same context in every conversation and noticeably cuts unrelated edits.

Claude Codeの代替ツール

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