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

# Protect Solana Agent Kit Actions with Prflght Firewall

> Use @prflght/sak-plugin to protect every Solana Agent Kit action with the Prflght transaction firewall — zero extra code after setup.

The `@prflght/sak-plugin` package adds Prflght transaction firewall protection to any agent built with [Solana Agent Kit](https://github.com/sendaifun/solana-agent-kit). After a one-line setup call, every SAK action that produces a transaction is automatically intercepted and checked against your Prflght policy before it reaches the chain.

## What the plugin does

SAK actions — swaps, transfers, liquidity provision, and anything else in the SAK toolkit — all go through a shared transaction submission path. The `PrfghtPlugin` hooks into that path at the SAK level, so you get full firewall coverage across every action without touching individual action code.

## Installation

```bash theme={null}
npm install @prflght/sak-plugin
```

## Setup

<Steps>
  <Step title="Install the package">
    Run the installation command above in your agent project directory.
  </Step>

  <Step title="Create your SolanaAgentKit instance">
    Set up `SolanaAgentKit` as you normally would, providing your private key, RPC URL, and any required API keys:

    ```typescript theme={null}
    import { SolanaAgentKit } from 'solana-agent-kit'
    import { PrfghtPlugin } from '@prflght/sak-plugin'

    const agent = new SolanaAgentKit(privateKey, rpcUrl, { OPENAI_API_KEY })
    ```
  </Step>

  <Step title="Register the Prflght plugin">
    Call `agent.use()` with a new `PrfghtPlugin` instance, passing your Prflght API URL:

    ```typescript theme={null}
    agent.use(new PrfghtPlugin({ apiUrl: 'https://api.prflght.xyz' }))
    ```
  </Step>

  <Step title="Run your agent normally">
    All subsequent transactions produced by any SAK action are now automatically protected by Prflght. No changes to action code required.
  </Step>
</Steps>

### Full example

```typescript theme={null}
import { SolanaAgentKit } from 'solana-agent-kit'
import { PrfghtPlugin } from '@prflght/sak-plugin'

const agent = new SolanaAgentKit(privateKey, rpcUrl, { OPENAI_API_KEY })
agent.use(new PrfghtPlugin({ apiUrl: 'https://api.prflght.xyz' }))

// All transactions through any SAK action are now intercepted automatically.
```

<Note>
  No other code changes are required. The plugin intercepts at the SAK level, so every action — including ones you add later — is covered automatically.
</Note>

## Comparing the plugin to the raw SDK

|              | `@prflght/sak-plugin`                              | `@prflght/sdk`                                                             |
| ------------ | -------------------------------------------------- | -------------------------------------------------------------------------- |
| **Setup**    | One `agent.use()` call                             | Manual `firewall.check()` before each transaction                          |
| **Coverage** | All SAK actions automatically                      | Only where you explicitly call `check()`                                   |
| **Control**  | Zero-config                                        | Full control over serialization, error handling, and instruction placement |
| **Best for** | SAK-based agents where you want drop-in protection | Custom agents or non-SAK frameworks                                        |

Use the raw SDK when you need fine-grained control over how transactions are built, serialized, or retried. Use the SAK plugin when you want complete coverage with minimal code.