> ## 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.

# Pass Through Middleware • AI Agent SDK

> PassThroughMiddleware: Default middleware that passes results through without modification.

# PassThroughMiddleware

> Defined in the [**middleware**](../modules/middleware) module.

<Badge color="blue">AI Agent</Badge>

Default middleware that passes results through without modification.

Used for the native 'praisonai' runtime and as a fallback for
unregistered runtimes to avoid allocation overhead.

## Constructor

<ParamField query="runtime_id" type="str" required={false} default="'praisonai'">
  No description available.
</ParamField>

## Methods

<CardGroup cols={2}>
  <Card title="runtime_id()" icon="function" href="../functions/PassThroughMiddleware-runtime_id">
    Instance method.
  </Card>

  <Card title="normalize()" icon="function" href="../functions/PassThroughMiddleware-normalize">
    Pass through result with minimal normalization.
  </Card>
</CardGroup>

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/runtime/middleware.py#L119">
  `praisonaiagents/runtime/middleware.py` at line 119
</Card>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Middleware Feature" icon="layer-group" href="/docs/docs/features/middleware" />
</CardGroup>