Creating Hedera Agent Kit Plugins

This skill provides guidance for creating custom plugins that extend the Hedera Agent Kit. Plugins allow adding new tools for Hedera network interactions—token operations, account management, consensus service, smart contracts, and custom integrations.

Quick Start

To create a Hedera plugin in 5 steps:

1. Install dependencies: Set up a TypeScript project with @hashgraph/hedera-agent-kit and @hiero-ledger/sdk
2. Create plugin structure: Create an index.ts with the plugin definition and a tools/ directory
3. Define tools: Each tool is a class extending BaseTool — this opts the tool into the hooks/policies lifecycle
4. Export properly: Export the plugin object and tool name constants
5. Register with agent: Import and pass the plugin in the toolkit configuration.plugins array

Plugin Interface

Every Hedera plugin implements this interface from @hashgraph/hedera-agent-kit: