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The @prflght/sak-plugin package adds Prflght transaction firewall protection to any agent built with 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.

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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.

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Installation

npm install @prflght/sak-plugin

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Setup

1

Install the package

Run the installation command above in your agent project directory.
2

Create your SolanaAgentKit instance

Set up SolanaAgentKit as you normally would, providing your private key, RPC URL, and any required API keys:
import { SolanaAgentKit } from 'solana-agent-kit'
import { PrfghtPlugin } from '@prflght/sak-plugin'

const agent = new SolanaAgentKit(privateKey, rpcUrl, { OPENAI_API_KEY })
3

Register the Prflght plugin

Call agent.use() with a new PrfghtPlugin instance, passing your Prflght API URL:
agent.use(new PrfghtPlugin({ apiUrl: 'https://api.prflght.xyz' }))
4

Run your agent normally

All subsequent transactions produced by any SAK action are now automatically protected by Prflght. No changes to action code required.

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Full example

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

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Comparing the plugin to the raw SDK

@prflght/sak-plugin@prflght/sdk
SetupOne agent.use() callManual firewall.check() before each transaction
CoverageAll SAK actions automaticallyOnly where you explicitly call check()
ControlZero-configFull control over serialization, error handling, and instruction placement
Best forSAK-based agents where you want drop-in protectionCustom 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.