> ## 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.

# A2 A Task State • Rust AI Agent SDK

> A2ATaskState: A2A Task State enum

# A2ATaskState

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

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A2A Task State enum

## Fields

| Name           | Type      | Description                 |
| -------------- | --------- | --------------------------- |
| `Task`         | `variant` | -                           |
| `is`           | `variant` | -                           |
| `pending`      | `variant` | -                           |
| `Pending`      | `variant` | Task is pending             |
| `Task`         | `variant` | -                           |
| `is`           | `variant` | -                           |
| `running`      | `variant` | -                           |
| `Running`      | `variant` | Task is running             |
| `Task`         | `variant` | -                           |
| `completed`    | `variant` | -                           |
| `successfully` | `variant` | -                           |
| `Completed`    | `variant` | Task completed successfully |
| `Task`         | `variant` | -                           |
| `failed`       | `variant` | -                           |
| `Failed`       | `variant` | Task failed                 |
| `Task`         | `variant` | -                           |
| `was`          | `variant` | -                           |
| `cancelled`    | `variant` | -                           |
| `Cancelled`    | `variant` | Task was cancelled          |

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-rust/praisonai/src/parity/ui.rs">
  `praisonai/src/parity/ui.rs` at line 0
</Card>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Rust Tasks" icon="list-check" href="/docs/rust/tasks" />

  <Card title="Rust Execution" icon="play" href="/docs/rust/execution" />

  <Card title="Rust A2A" icon="arrows-left-right" href="/docs/rust/a2a" />

  <Card title="Rust Agent-to-Agent" icon="users" href="/docs/rust/agent-to-agent-a2a" />
</CardGroup>