Prompt-caching – auto-injects Anthropic cache breakpoints (90% token savings)
prompt-caching.ai
March 13, 2026
1 min read
Summary
Open source MCP plugin that automatically injects prompt cache breakpoints into Claude Code sessions. Up to 90% token cost reduction — zero config.
Community Sentiment
MixedPositives
- The auto-caching feature introduced by Anthropic significantly simplifies the process for developers, allowing for efficient breakpoint placement without manual intervention.
- Reducing token usage by 90% through prompt-caching can lead to substantial cost savings, making AI applications more accessible for developers.
- Claude Code's built-in prompt caching enhances user experience by automatically managing system prompts and conversation history, streamlining development.
Concerns
- The plugin discussed is outdated and does not provide any incremental benefits over the existing auto-caching feature from Anthropic, which diminishes its relevance.
- Despite initial perceptions, Sonnet is not cheaper than Opus when considering output token costs, highlighting potential marketing discrepancies that can mislead users.
Source
prompt-caching.ai
Published
March 13, 2026
Reading Time
1 minutes
Relevance Score
46/100
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