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New plugin slashes Claude token costs by up to 90%

A new plugin called prompt-caching aims to significantly reduce token costs when using Anthropic's Claude models, particularly Claude Code. The plugin automatically detects and caches stable parts of conversations, such as system prompts and file content, reducing token usage by up to 90% for repeated interactions. While Anthropic has introduced its own auto-caching feature, prompt-caching offers additional observability tools to analyze savings and debug cache misses. Separately, there is user confusion regarding the availability of the '-p' flag in Claude Code, and discussions about Claude Code's efficiency compared to other tools like Cursor. AI

Summary written by gemini-2.5-flash-lite from 6 sources. How we write summaries →

IMPACT This plugin could significantly lower operational costs for developers using Anthropic's Claude models, potentially encouraging wider adoption and experimentation.

RANK_REASON The cluster focuses on a third-party plugin and user discussions about existing products, rather than a direct release from a frontier lab.

Read on HN — anthropic stories →

COVERAGE [6]

  1. HN — anthropic stories TIER_1 · ermis ·

    Prompt-caching – auto-injects Anthropic cache breakpoints (90% token savings)

  2. Mastodon — fosstodon.org TIER_1 · [email protected] ·

    How to learn Claude Code for free with Anthropic's AI courses - one took me just 20 minutes With Anthropic's free course library, you can train online and learn

    How to learn Claude Code for free with Anthropic's AI courses - one took me just 20 minutes With Anthropic's free course library, you can train online and learn about Claude, Claude Code, AI agents, and MCP. https://www. zdnet.com/article/how-to-learn -claude-code-with-free-anthr…

  3. Mastodon — mastodon.social TIER_1 한국어(KO) · [email protected] ·

    BOOTOSHI (@KingBootoshi) After Anthropic announced that 'claude -p' is available in subscription plans, confusion and policy changes/announcements that the '-p' flag cannot be used in Claude Code have led to growing dissatisfaction among developers. https:// x.com/

    BOOTOSHI (@KingBootoshi) Anthropic가 구독 플랜에서 'claude -p' 사용 가능하다고 안내한 뒤, Claude Code에서는 '-p' 플래그를 사용할 수 없다는 혼란스러운 정책 변경/안내가 이어져 개발자들의 불만이 커지고 있다. https:// x.com/KingBootoshi/status/2054 638470853968152 # anthropic # claude # cloudecode # developerexperience # ai

  4. r/cursor TIER_2 Français(FR) · /u/sweeteast ·

    Sonnet in cursor VS Claude code

    <!-- SC_OFF --><div class="md"><p>I have a large code base that costs significant tokens as it's growing up. Although composer is getting better but despite my $60 I'm satisfied by token efficiency. I'm considering switching to claude code but not sure the Max will have better ef…

  5. r/cursor TIER_2 · /u/kushagra1404 ·

    What’s one Claude Code workflow that genuinely made you faster as a developer?

    &#32; submitted by &#32; <a href="https://www.reddit.com/user/kushagra1404"> /u/kushagra1404 </a> <br /> <span><a href="/r/ClaudeCode/comments/1t7e3i1/whats_one_claude_code_workflow_that_genuinely/">[link]</a></span> &#32; <span><a href="https://www.reddit.com/r/cursor/comments/1…

  6. r/cursor TIER_2 · /u/ryanzec ·

    Why is cursor inefficient with reading code for refactoring

    <!-- SC_OFF --><div class="md"><p>Maybe I am missing something or the number being reported are wrong but it seems like cursor is very inefficient when it comes to token usage in large scale refactoring</p> <p>I perform pretty much the same refactor on 2 code bases basically conv…