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

# Fallback Runtime • AI Agent SDK

> FallbackRuntime: Fallback runtime implementation that raises errors instead of returning stubs.

# FallbackRuntime

> Defined in the [**resolve**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/resolve.md) module.

AI Agent

Fallback runtime implementation that raises errors instead of returning stubs.

## Constructor

**model\_ref** `str` *required*

No description available.

**agent\_id** `str` *required*

No description available.

## Methods

> [card] [execute()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-execute.md)
>
> Instance method.

> [card] [aexecute()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-aexecute.md)
>
> Instance method.

> [card] [model\_ref()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-model_ref.md)
>
> Instance method.

> [card] [provider()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-provider.md)
>
> Instance method.

> [card] [supports\_streaming()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-supports_streaming.md)
>
> Instance method.

> [card] [supports\_tools()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/FallbackRuntime-supports_tools.md)
>
> Instance method.

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/runtime/resolve.py#L179)
>
> `praisonaiagents/runtime/resolve.py` at line 179


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