# anthropic/memory-tool (Anthropic Memory Tool) This example shows how to include Anthropic's native `memory_20250818` tool in a Promptfoo eval. ```bash npx promptfoo@latest init --example anthropic/memory-tool cd anthropic/memory-tool ``` ## Features Demonstrated - Passing the Anthropic memory tool through the Messages provider - Restricting the tool to direct model calls - Keeping the eval single-turn by disabling tool use with `tool_choice` ## Required Environment Variables - `ANTHROPIC_API_KEY` - Your Anthropic API key from [console.anthropic.com](https://console.anthropic.com/settings/keys) ## Running the Example ```bash promptfoo eval ``` Promptfoo sends the memory tool definition to Anthropic, but it does not create memory stores or run local memory handlers. Use this pattern to validate prompt behavior around memory-tool availability, or remove `tool_choice` when you want the model to request memory operations for assertion.