話題 / Topic
Claude Code v2.1.299's new "idle compaction" automatically compresses conversations over 200K tokens after about 54 minutes of inactivity—before the one-hour prompt cache expires—preemptively avoiding a full re-read on return. MCP permissions were also tightened at the same time.
Claude Code v2.1.299が追加した「アイドル・コンパクション」は、200Kトークン超の会話が約54分放置されると1時間のキャッシュ失効前に自動圧縮し、復帰時の全文読み直しを先回りで防ぎます。MCP権限の狭め直しも同時に。
Claude Code v2.1.247 is out. It adds /claude-api cost-optimize, an interactive command that trims Claude API spending while measuring the effect of each change, and ships with Admin API support plus a SendFeedback tool that drafts bug reports.
Claude Code v2.1.247 が公開。Claude API の支出を測りながら削る対話コマンド /claude-api cost-optimize を追加し、Admin API 対応と、不具合報告を下書きする SendFeedback ツールも同梱した。
On July 22, Cursor announced Cursor Router, which automatically selects the AI model to use for each request. It's said to be up to 50% cheaper than pinning to Opus, but concerns remain — such as it being hard to see which model wrote your code. We break down the cost, mechanics, and caveats.
Cursorが7月22日、リクエストごとに使うAIモデルを自動で選ぶCursor Routerを発表。Opus固定より最大50%安いとされる一方、どのモデルで書いたか見えにくい等の懸念も。コスト・仕組み・注意点を整理する。
