# AI SDK Workflow

[`@ai-sdk/workflow`](/docs/agents/workflow-agent) provides the `WorkflowAgent` class for building durable, resumable AI agents that run inside Vercel Workflows. It handles tool schema serialization, workflow step boundaries, and built-in tool approval flows.

<IndexCards
  cards={[
    {
      title: 'WorkflowAgent',
      description:
        'Create durable AI agents with tool calling, streaming, and workflow integration.',
      href: '/docs/reference/ai-sdk-workflow/workflow-agent',
    },
    {
      title: 'WorkflowChatTransport',
      description:
        'Chat transport with automatic stream reconnection for workflow-based apps.',
      href: '/docs/reference/ai-sdk-workflow/workflow-chat-transport',
    },
  ]}
/>


## Navigation

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  - [safeValidateUIMessages](/v7/docs/reference/ai-sdk-core/safe-validate-ui-messages)
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  - [pruneMessages](/v7/docs/reference/ai-sdk-ui/prune-messages)
  - [createUIMessageStream](/v7/docs/reference/ai-sdk-ui/create-ui-message-stream)
  - [createUIMessageStreamResponse](/v7/docs/reference/ai-sdk-ui/create-ui-message-stream-response)
  - [pipeUIMessageStreamToResponse](/v7/docs/reference/ai-sdk-ui/pipe-ui-message-stream-to-response)
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  - [InferUITools](/v7/docs/reference/ai-sdk-ui/infer-ui-tools)
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  - [DirectChatTransport](/v7/docs/reference/ai-sdk-ui/direct-chat-transport)
- [AI SDK RSC](/v7/docs/reference/ai-sdk-rsc)
  - [streamUI](/v7/docs/reference/ai-sdk-rsc/stream-ui)
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  - [createStreamableUI](/v7/docs/reference/ai-sdk-rsc/create-streamable-ui)
  - [createStreamableValue](/v7/docs/reference/ai-sdk-rsc/create-streamable-value)
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  - [useAIState](/v7/docs/reference/ai-sdk-rsc/use-ai-state)
  - [useActions](/v7/docs/reference/ai-sdk-rsc/use-actions)
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  - [useStreamableValue](/v7/docs/reference/ai-sdk-rsc/use-streamable-value)
  - [render (Removed)](/v7/docs/reference/ai-sdk-rsc/render)
- [AI SDK Workflow](/v7/docs/reference/ai-sdk-workflow)
  - [WorkflowAgent](/v7/docs/reference/ai-sdk-workflow/workflow-agent)
  - [WorkflowChatTransport](/v7/docs/reference/ai-sdk-workflow/workflow-chat-transport)
- [AI SDK Errors](/v7/docs/reference/ai-sdk-errors)
  - [AI_APICallError](/v7/docs/reference/ai-sdk-errors/ai-api-call-error)
  - [AI_DownloadError](/v7/docs/reference/ai-sdk-errors/ai-download-error)
  - [AI_EmptyResponseBodyError](/v7/docs/reference/ai-sdk-errors/ai-empty-response-body-error)
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  - [AI_InvalidMessageRoleError](/v7/docs/reference/ai-sdk-errors/ai-invalid-message-role-error)
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  - [AI_InvalidResponseDataError](/v7/docs/reference/ai-sdk-errors/ai-invalid-response-data-error)
  - [AI_InvalidToolApprovalError](/v7/docs/reference/ai-sdk-errors/ai-invalid-tool-approval-error)
  - [AI_InvalidToolInputError](/v7/docs/reference/ai-sdk-errors/ai-invalid-tool-input-error)
  - [AI_JSONParseError](/v7/docs/reference/ai-sdk-errors/ai-json-parse-error)
  - [AI_LoadAPIKeyError](/v7/docs/reference/ai-sdk-errors/ai-load-api-key-error)
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  - [AI_MessageConversionError](/v7/docs/reference/ai-sdk-errors/ai-message-conversion-error)
  - [AI_NoContentGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-content-generated-error)
  - [AI_NoImageGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-image-generated-error)
  - [AI_NoObjectGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-object-generated-error)
  - [AI_NoOutputGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-output-generated-error)
  - [AI_NoSpeechGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-speech-generated-error)
  - [AI_NoSuchModelError](/v7/docs/reference/ai-sdk-errors/ai-no-such-model-error)
  - [AI_NoSuchProviderError](/v7/docs/reference/ai-sdk-errors/ai-no-such-provider-error)
  - [AI_NoSuchProviderReferenceError](/v7/docs/reference/ai-sdk-errors/ai-no-such-provider-reference-error)
  - [AI_NoSuchToolError](/v7/docs/reference/ai-sdk-errors/ai-no-such-tool-error)
  - [AI_NoTranscriptGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-transcript-generated-error)
  - [AI_NoVideoGeneratedError](/v7/docs/reference/ai-sdk-errors/ai-no-video-generated-error)
  - [AI_RetryError](/v7/docs/reference/ai-sdk-errors/ai-retry-error)
  - [AI_TooManyEmbeddingValuesForCallError](/v7/docs/reference/ai-sdk-errors/ai-too-many-embedding-values-for-call-error)
  - [AI_ToolCallNotFoundForApprovalError](/v7/docs/reference/ai-sdk-errors/ai-tool-call-not-found-for-approval-error)
  - [ToolCallRepairError](/v7/docs/reference/ai-sdk-errors/ai-tool-call-repair-error)
  - [AI_TypeValidationError](/v7/docs/reference/ai-sdk-errors/ai-type-validation-error)
  - [AI_UIMessageStreamError](/v7/docs/reference/ai-sdk-errors/ai-ui-message-stream-error)
  - [AI_UnsupportedFunctionalityError](/v7/docs/reference/ai-sdk-errors/ai-unsupported-functionality-error)


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