Checked fact 8228 Oct 2026Agents and apps

Anthropic says prompt caching references the entire prompt, tools, system and messages in that order, up to and including the block designated with cache_control. Quote: "Prompt caching references the entire prompt:"

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Prompt caching references the entire prompt: tools , system , and messages (in that order), up to and including the block designated with cache_control .

What the source said when we opened it, on 8 Oct 2026.

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Prompt caching
Anthropic

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Checked by the notis newsroom on 8 Oct 2026, against the source above.

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How prompt caching bills a repeated prompt start 8 Oct 2026

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“Anthropic says prompt caching references the entire prompt, tools, system and messages in that order, up to and including the block designated with cache_control. Quote: "Prompt caching references the entire prompt:".” ai notis, checked 8 Oct 2026. Source: Prompt caching (Anthropic). https://ainotis.com/c/822

As a reference (APA style)

ai notis. (2026, October 8). Anthropic says prompt caching references the entire prompt, tools, system and messages in that order, up to and including the block designated with cache_control. Quote: "Prompt caching references the entire prompt:" [Checked claim 822]. ai notis. https://ainotis.com/c/822

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