Claude Code設定完全ガイド【2026年最新】：settings.json・CLAUDE.md・MCP・言語設定・権限設定まで徹底解説

{
  "$schema": "https://json.schemastore.org/claude-code-settings.json",
  "permissions": {
    "allow": [
      "Bash(npm run lint)",
      "Bash(npm run test *)",
      "Read(~/.zshrc)"
    ],
    "deny": [
      "Bash(curl *)",
      "Read(./.env)",
      "Read(./.env.*)",
      "Read(./secrets/**)"
    ]
  },
  "env": {
    "CLAUDE_CODE_ENABLE_TELEMETRY": "1"
  }
}

{
  "language": "japanese"
}

{
  "model": "claude-sonnet-4-6"
}

{
  "availableModels": ["claude-sonnet-4-6", "claude-opus-4-6"]
}

{
  "autoUpdatesChannel": "stable"
}

{
  "permissions": {
    "deny": [
      "Read(./.env)",
      "Read(./.env.*)",
      "Read(./secrets/**)",
      "Bash(curl *)",
      "Bash(rm -rf *)"
    ]
  }
}

{
  "permissions": {
    "allow": [
      "Bash(npm run lint)",
      "Bash(npm run test *)",
      "Bash(git diff *)",
      "Bash(git status)",
      "Bash(git log *)"
    ],
    "deny": [
      "Read(./.env)",
      "Bash(git push *)"
    ],
    "ask": [
      "Bash(git push *)"
    ]
  }
}

{
  "permissions": {
    "additionalDirectories": ["../docs/", "../shared/"]
  }
}

# プロジェクト設定

@./docs/architecture.md
@./docs/coding-standards.md

.claude/
  rules/
    coding-standards.md
    git-workflow.md
    testing-guidelines.md

# リモートHTTPサーバーを追加
claude mcp add --transport http github https://mcp.github.com

# ローカルのstdioサーバーを追加
claude mcp add filesystem npx @modelcontextprotocol/server-filesystem /path/to/dir

{
  "allowedMcpServers": [
    { "serverName": "github" },
    { "serverName": "slack" }
  ],
  "deniedMcpServers": [
    { "serverName": "filesystem" }
  ]
}

# プロジェクト名

## 概要
このリポジトリは〇〇するためのものです。

## 技術スタック
- Node.js 22
- TypeScript 5.x
- PostgreSQL 16

## よく使うコマンド
- `npm run dev`: 開発サーバー起動
- `npm test`: テスト実行
- `npm run lint`: リント実行

## コーディング規約
- TypeScriptのanyは使わない
- 関数にはJSDocコメントを書く

{
  "permissions": {
    "deny": [
      "Read(./.env)",
      "Read(./.env.*)",
      "Read(./secrets/**)"
    ],
    "allow": [
      "Bash(npm run *)",
      "Bash(git diff *)",
      "Bash(git status)",
      "Bash(git log *)"
    ]
  }
}

{
  "$schema": "https://json.schemastore.org/claude-code-settings.json",
  "language": "japanese",
  "autoUpdatesChannel": "stable",
  "model": "claude-sonnet-4-6",
  "showTurnDuration": true
}

{
  "$schema": "https://json.schemastore.org/claude-code-settings.json",
  "permissions": {
    "allow": [
      "Bash(npm run *)",
      "Bash(git diff *)",
      "Bash(git status)",
      "Bash(git log *)",
      "Bash(git add *)",
      "Bash(git commit *)"
    ],
    "ask": [
      "Bash(git push *)"
    ],
    "deny": [
      "Read(./.env)",
      "Read(./.env.*)",
      "Read(./secrets/**)",
      "Bash(curl *)",
      "Bash(wget *)"
    ]
  }
}

# .bashrcや.zshrcに追加
export ANTHROPIC_API_KEY="sk-ant-..."

{
  "apiKeyHelper": "/path/to/generate_key.sh"
}

{
  "permissions": {
    "allow": [
      "Bash(curl https://api.example.com/*)"
    ],
    "deny": [
      "Bash(curl *)"
    ]
  }
}

{
  "permissions": {
    "deny": [
      "Bash(curl http://*)",
      "Bash(curl https://untrusted.com/*)"
    ],
    "allow": [
      "Bash(curl https://api.example.com/*)"
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "echo \"$(date): $TOOL_INPUT\" >> ~/.claude/bash-history.log"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "osascript -e 'display notification \"Claude Codeの作業が完了しました\" with title \"Claude Code\"'"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "Stop": [
      {
        "hooks": [
          {
            "type": "http",
            "url": "https://hooks.slack.com/services/xxx/yyy/zzz",
            "method": "POST",
            "headers": {
              "Content-Type": "application/json"
            }
          }
        ]
      }
    ]
  }
}

{
  "language": "japanese"
}

export ANTHROPIC_BEDROCK_BASE_URL=https://bedrock-runtime.us-east-1.amazonaws.com
export AWS_DEFAULT_REGION=us-east-1

{
  "modelOverrides": {
    "claude-opus-4-6": "arn:aws:bedrock:us-east-1:123456789:inference-profile/..."
  }
}

# HTTP経由のリモートサーバーを追加（Userスコープに保存）
claude mcp add --transport http github https://mcp.github.com

# Projectスコープに追加（.mcp.jsonに書き出される）
claude mcp add --scope project --transport http supabase https://mcp.supabase.com/mcp

{
  "mcpServers": {
    "github": {
      "type": "http",
      "url": "https://mcp.github.com"
    },
    "filesystem": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/path/to/directory"
      ]
    }
  }
}

# 追加済みのMCPサーバー一覧
claude mcp list

# MCPサーバーを削除
claude mcp remove github

# 特定のMCPサーバーの詳細確認
claude mcp get github