# Claude Codeは毎ターン何万トークンも隠れて請求していた

> Author: Tony Lee
> Published: 2026-07-07
> URL: https://tonylee.im/ja/blog/claude-code-cut-hidden-tool-tokens/
> Reading time: 1 minutes
> Language: ja
> Tags: claude-code, tokens, anthropic, settings, mcp, productivity

## Canonical

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## Description

Matt Pocock方式: /contextで測り、settings.jsonで未使用tool定義を削る。

## Summary

Claude Codeは毎ターン何万トークンも隠れて請求していた is part of Tony Lee's ongoing coverage of AI agents, developer tools, startup strategy, and AI industry shifts.

## Outline

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## Content

Claude Codeに送るたびにtool定義・skillカタログ・使わない機能の指示が乗る。通常は気づかない。毎ターン何万トークンが乗るのを見るまでは。

Matt Pocockが測って削る方法を公開。`/context`でsystem・tools・MCP・memoryを分解。未使用toolスキーマも毎ターン乗る。

`disableBundledSkills` / `disableWorkflows` / `disableRemoteControl`と、bare名の`permissions.deny`。`"NotebookEdit"`は定義削除、`"Bash(rm *)"`は呼び出し遮断のみで定義は残る。

再起動後`/context`で減っているか確認。コード最適化の前にsettings.jsonを1分。

## Related URLs

- Author: https://tonylee.im/ja/author/
- Publication: https://tonylee.im/ja/blog/about/
- Related article: https://tonylee.im/ja/blog/ai-subscription-stack-by-budget-and-role/
- Related article: https://tonylee.im/ja/blog/agent-transition-starts-with-initial-setup/
- Related article: https://tonylee.im/ja/blog/codex-starter-guide-vible/

## Citation

- Author: Tony Lee
- Site: tonylee.im
- Canonical URL: https://tonylee.im/ja/blog/claude-code-cut-hidden-tool-tokens/

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Author: Tony Lee | Website: https://tonylee.im
For more articles, visit: https://tonylee.im/ja/blog/
This content is original and authored by Tony Lee. Please attribute when quoting or referencing.