> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Prompt Cache Hit Rate (30d), Anthropic (Claude) KPI card, Vortex IQ Nerve Centre

> cache_read / (cache_read + uncached input) x 100. Higher = cheaper repeat prompts.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/anthropic) · [Sentiment Settings](/nerve-centre/kpi-cards/anthropic/sentiment)**

## At a glance

* **Category:** Tokens
* **Type:** Supporting Metrics
* **Chart:** gauge
* **Format:** percent
* **Time window:** 30D

## Calculation

cache\_read / (cache\_read + uncached input) x 100. Higher = cheaper repeat prompts.

## Known limitations

*Known limitations, FAQs, or reconciliation notes specific to this card. Replace this block when authored.*