> ## 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.

# capabilities • AI Agent SDK

> Runtime Capability System for PraisonAI Agents.

# capabilities

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

Runtime Capability System for PraisonAI Agents.

Defines capability flags and validation logic to detect runtime incompatibilities
at config/preflight time rather than during agent execution.

This addresses the issue where hooks, tools, streaming, and context compaction
behave differently across native and plugin harness runtimes, causing users
to discover incompatibilities mid-turn instead of at startup.

## Import

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
from praisonaiagents.runtime import capabilities
```

## Classes

<CardGroup cols={2}>
  <Card title="RuntimeCapability" icon="brackets-curly" href="../classes/RuntimeCapability">
    Enumeration of runtime capabilities that agents may require.
  </Card>

  <Card title="RuntimeCapabilityMatrix" icon="brackets-curly" href="../classes/RuntimeCapabilityMatrix">
    Matrix of capabilities supported by a specific runtime implementation.
  </Card>

  <Card title="CapabilityValidationError" icon="brackets-curly" href="../classes/CapabilityValidationError">
    Raised when runtime capability validation fails.
  </Card>
</CardGroup>

## Functions

<CardGroup cols={2}>
  <Card title="validate_capabilities()" icon="function" href="../functions/validate_capabilities">
    Validate that a runtime supports all required capabilities.
  </Card>

  <Card title="get_native_runtime_capabilities()" icon="function" href="../functions/get_native_runtime_capabilities">
    Get the capability matrix for the built-in native runtime.
  </Card>

  <Card title="get_reduced_harness_capabilities()" icon="function" href="../functions/get_reduced_harness_capabilities">
    Get an example capability matrix for a reduced plugin harness.
  </Card>
</CardGroup>