跟读练习: Claude Code Is Wasting Tokens... Microsoft Built a Fix - 通过视频学习英语口语

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It seems there's a lot of heat with tools and extensions that claim to reduce token usage.
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Many of these have been put to the test and they work well.
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Now Microsoft just released their own, a free plugin that cut AI coding agent costs by 18 to 31 % in their tests.
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And they didn't use a cheaper model or a different agent either.
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It works with all the big names, so it's a win for us.
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it's called token economizer
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and it solves a problem you've probably seen yourself
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you ask claude code to fix something fix this it tries a command gets an error
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and then keeps running
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and burning tokens up to find us a fix token economizer learns from those sessions it remembers how your repo works, removes tools you don't use,
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and steps in when the agent keeps making the same mistake.
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And the more you use it in the same project, the more tokens you actually save.
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So let's install it and see what it actually does.
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If you enjoy coding tools the speed of your workflow, be sure to subscribe.
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We have videos coming out all the time.
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Now I'm going to use
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Cloud Code for this, but remember
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Token Economizer also supports all the other big names.
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First, I'll clone it and install the plugin right here.
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We're going to run our git clone.
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We're going to install the git plugin from the marketplace and make sure everything is ready to go.
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That's installed all super straightforward.
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Just keep the clone folder because the plugin runs from there.
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Now I'll open one of my existing projects and we're going to fire up Claude Code.
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Let's check the status.
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All we need to do to check the status here is I'm going to run token economizer status.
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This shows what the plugin has learned.
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It shows what it's doing and the costs it has already tracked.
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Now, quick note here, micro skills are turned off by default.
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So I'm going to enable those and we'll circle back.
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Then I'll refresh the tool catalog.
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I'm going to run here a tool prune, refresh catalog.
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Now I'll give Claude Code some tasks.
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Let's start super simple.
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I'm going to give Claude Code a task, build a unit test.
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Very straightforward.
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Run it.
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Now notice I'm not changing how I use Claude code.
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It's the same thing, just on Opus 5 .5, with all the prompts I would normally fire straight at it.
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TokenEconomizer just works alongside it.
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Now, in a repo where it's already watched several sessions, we can check what it's learned so far.
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So here we are.
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I'm going to run Microskills.
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You can check.
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You can run ToolPrune.
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Here we can see any repo -specific info it's learned.
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In tools, it's identified as unused.
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If you install it for the first time, these might be empty.
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It needs a few sessions to actually learn what the hell is going on.
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And all of that info stays on your machine inside the token economizer folder.
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There are really three parts to this.
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Now, first up to the plate is called micro skills.
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Say you're working on a project that needs a specific command to run its tests.
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Claude code, it doesn't know that.
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So it tries the usual command, gets an error, try something else and yeah, okay, it eventually gets it.
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Great.
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Except later when you start a new session, it might make the exact same mistake.
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So there we are paying extra tokens, which I would rather not do.
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Token Economizer looks at a previous session, all of them, and learns small details about the repo.
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Things like which test commands actually work, which environment variables are needed, and where certain files live.
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Once something has been confirmed enough times, it can give us that information to the agents at the start of a new session.
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So instead of wasting tokens over and over again, the agent already has the answer.
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Now next up to the plate is tool pruning.
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When you start a coding agent, it can load a bunch of tools into its context, and those tool definitions use tokens,
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even if the agent never touches them.
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Token Economizer tracks which tools actually get used in your repo.
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If a tool consistently goes unused, used, it can stop loading it in a feature session.
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And if you need it again, you can just restore it.
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Then finally, we go to something called a failure loop intervention.
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You've probably watched an agent run a command, get an error, change one small thing and run almost the exact same command again.
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Sometimes it just keeps repeating that process.
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Token Economizer watches for these patterns.
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When it thinks the agent might be stuck, it uses a judge model to check what's happening.
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If it detects this loop, it sends the agent a short instruction to try a different approach.
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And if the agent still can't recover, it tells you how to stop the turn.
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It doesn't just freak out and stop, but does it actually save enough money to even matter?
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That's sort of the question.
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Yes, it appears to do pretty much that.
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Microsoft in UC Berkeley tested
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Token Economizer on...
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277 SWE benched tasks across six repos using five different agent and model combinations.
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And the average cost dropped between 18 .4 % and about 31%.
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So the results were pretty good.
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In four of the five combinations, tasks' success actually improved.
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One saw a small decline, but across all 30 repository and agent model combinations, Token Economizer was cheaper than running without it.
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And they even included the plugin's own model calls in those.
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Token Economizer isn't completely free to run.
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Some of its features use additional model calls.
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So those reported savings already accounted for the overhead.
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It is open source.
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It works with the same agents we already use, and the info it learns stays local.
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But I wouldn't expect all of us to see the same results.
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Its first public release was in October of this year, and the biggest savings come from working in the same repositories over multiple sessions.
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If you're constantly jumping between unrelated projects, there's much less to actually learn from it, or for it, I should say.
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If your agent is doing something completely new, there might not be much repeated work to eliminate at all.
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So ask yourself, based on the work you do, will this actually be useful?
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If you use agents every day on one or a couple core projects, then yeah, this should help.
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If you're working on the same repo over and over with Claude Code, Codex, yes, this is going to help.
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But if you're building a ton of different projects or you're just playing around, this is not really going to change anything.
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It's probably not even worth it.
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So here's what I'd do.
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Install Token Economizer on the repo you use the most.
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Run it for a week, then check the status reports like I showed us and compare the costs of similar tasks.
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If the agent is actually using fewer tokens and whether it's still completing your tasks properly, awesome.
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It is working.
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One thing to remember, each agent learns separately.
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So whatever cloud code learns doesn't automatically carry over to Codex.
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And don't judge it entirely on the first session.
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That's why I say run it for a week.
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The whole point is that it learns from repeated use.
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If it's saving you money without getting in your way, keep it.
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If not, you've got the answer.
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So what it really does is takes a different approach to
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reducing AI coding costs instead of making the model smaller or compressing your prompts.
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It looks at the work your agent keeps wasting tokens on.
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It remembers useful details about your repo, stops loading unused tools, and helps agents recover when it gets stuck.
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I'm Josh from BetterStack.
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If you enjoy coding tips and tricks like this, be sure to subscribe.
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We'll see you in another video.

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推荐视频

本课的词汇与口语要点

这节口语课以视频“Claude Code Is Wasting Tokens... Microsoft Built a Fix”为素材。 视频中反复出现的词有:token, agent, economizer, tool, repo。 这段视频共有 119 个句子、1344 个单词可供跟读。 讲话部分时长为 7:29。 说话人语速较快,每分钟约 180 个词,会出现较多连读和弱读。 82% 的单词属于英语最常用的 3,000 词,其余的词建议在练习前先学一下。

视频中的重点词汇

视频中 15 个值得学习的单词,附发音和释义:

单词发音释义
token 名词/ˈtoʊkən/代幣 /代币, 籌碼 /筹码
install 动词/ɪnˈstɔl/安裝 /安装
clone 名词/kloʊn/克隆, 複製 /复制
cloud 名词/ˈklaʊ̯d/йүн, 雲 /云
skill 名词/skɪl/技巧, 技能
loop 名词/luːp/圈, 環 /环
recover 动词/ɹɪˈkʌvɚ/追回, 收复
subscribe 动词/səbˈskɹaɪb/簽署 /签署
catalogue 名词/ˈkæt.əˌlɔɡ/目錄 /目录
straightforward 形容词/ˌstɹeɪtˈfɔː(ɹ)wə(ɹ)d/簡單 /简单
folder 名词/ˈfoʊldɚ/卷宗, 文件夾 /文件夹
refresh 动词/ɹɪˈfɹɛʃ/提神
trick 名词/ˈtɹɪk/詭計 /诡计, 騙術 /骗术
alongside/əˌlɔŋˈsaɪd/旁邊 /旁边
compare 动词/kəmˈpɛɚ/比, 比較 /比较

视频中出现的短语动词

单词发音释义
come out 动词/ˌkʌm ˈaʊt/出, 出來 /出来
turn off 动词關 /关, 關掉 /关掉

值得反复跟读的句子

视频中简短而完整的句子,可以直接用在日常对话里:

  • We're going to run our git clone.
  • Then I'll refresh the tool catalog.
  • That's why I say run it for a week.
  • If not, you've got the answer.
  • We'll see you in another video.

视频中的语法

说话人最常用的结构,并附上视频中的原话:

结构视频中的用法
现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事have been put · you've probably seen · has learned
被动语态 be + 过去分词 — 强调发生了什么,而不是谁做的have been put · are turned · is called

需要注意的发音

说话人用了 35 次缩略和弱读形式,例如 I'm, you're, I'll。请按听到的简短形式来说。

  • “sh” 和 “zh” 音: combinations /kɑmbɪˈneɪʃənz/, refresh /ɹɪˈfɹɛʃ/, extension /ɪkˈstɛnʃən/, intervention /ɪntɚˈvɛnʃən/, instruction /ɪnˈstɹʌkʃən/
  • 长单词——注意重音位置: combinations /kɑmbɪˈneɪʃənz/, intervention /ɪntɚˈvɛnʃən/, consistently /kənˈsɪstəntli/, eliminate /ɪˈlɪm.ɪ.neɪt/, repository /ɹɪˈpɒz.ɪ.t(ə.)ɹɪ/

中文母语者容易读错的音:

  • /v/ — 不要读成 /w/,上齿轻触下唇: recover /ɹɪˈkʌvɚ/, solve /sɒlv/, intervention /ɪntɚˈvɛnʃən/, variable [ˈvæɹ.i.ə.bl̩], overhead /ˈəʊvəˌhɛd/
  • 词尾辅音 — 要读清楚,后面不要加元音: combinations /kɑmbɪˈneɪʃənz/, unused /ʌnˈjuzd/, cloud /ˈklaʊ̯d/, loop /luːp/, subscribe /səbˈskɹaɪb/
  • /r/ 和 /l/ 的区别: variable [ˈvæɹ.i.ə.bl̩], separately /ˈsɛp.ɹət.li/

如何用这段视频练习

  1. 先完整听一遍视频,不要开口,记下不认识的单词。
  2. 先用 0.75 倍速逐句跟读,熟练之后再回到正常速度。
  3. 录下自己的声音并与原声对比,特别注意 token, install, clone 这类单词。

什么是跟读法?

跟读法 (Shadowing) 是一种有科学依据的语言学习技巧,最初开发用于专业口译员的培训,并由多语言者Alexander Arguelles博士普及。这个方法简单而强大:您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同,跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性,语调,节奏,连读,听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。

影子跟读法: 阅读完整分步指南 →