fix(gateway): add automatic caching provider option#15298
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…16483) ## Background The `caching` provider option for the AI Gateway was previously untyped despite being in AI Gateway docs. #15768 added it, but only to v7 ## Summary Backported that change by updating the `gatewayProviderOptions` zod schema in v6. ## Manual Verification This is properly typed in v6 now with intellisense working and no errors: ```typescript const result = streamText({ model: 'anthropic/claude-sonnet-4.6', system: 'You are a helpful assistant with access to a large knowledge base...', prompt: 'What is the capital of France?', providerOptions: { gateway: { caching: 'auto', } satisfies GatewayProviderOptions, }, }); ``` ## Checklist - [X] All commits are signed (PRs with unsigned commits cannot be merged) - [ ] Tests have been added / updated (for bug fixes / features) - [ ] Documentation has been added / updated (for bug fixes / features) - [X] A _patch_ changeset for relevant packages has been added (for bug fixes / features - run `pnpm changeset` in the project root) - [X] I have reviewed this pull request (self-review) ## Related Issues Fixed #14595 Closes #14609 Closes #14632 Closes #14664 Closes #14886 Closes #15298 Closes #15329 Closes #15458 Closes #15500 Closes #15857
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Background
GatewayProviderOptionsdid not include the documentedcaching: 'auto'option, so strict TypeScript usage withsatisfies GatewayProviderOptionsfailed.Summary
caching: 'auto'toGatewayProviderOptions@ai-sdk/gatewayManual Verification
pnpm --filter @ai-sdk/gateway type-checkpnpm --filter @ai-sdk/gateway test:node -- gateway-language-model.test.tsNote: both commands print the local Node v26 engine warning, but pass.
Checklist
pnpm changesetin the project root)Related Issues
Fixes #14595