Use when user wants to interact with Hedera blockchain: create/transfer
This skill should be used when the user asks to "migrate to hedera-agent-kit v4", "upgrade hak v3 to v4", "convert plugin to BaseTool", "migrate Tool to BaseTool", "rename hedera-agent-kit imports", "fix v3 deprecation warnings", or has a project still on `hedera-agent-kit@3.x` / `@hashgraph/sdk` that needs to move to `@hashgraph/hedera-agent-kit@4.x` / `@hiero-ledger/sdk`. Covers both custom-plugin migration (Tool → BaseTool) and toolkit-consumer migration (LangChain/AI SDK/ElizaOS/MCP).
This skill should be used when the user asks to "create a hedera plugin", "build a hedera agent kit plugin", "extend hedera agent kit", "create custom hedera tools", "add hedera functionality", "write a hedera tool", "implement hedera tool", or needs guidance on Hedera Agent Kit plugin architecture, tool definitions, mutation tools, query tools, or parameter schemas using Zod.
This skill should be used when the user asks to "create a hedera hook", "write an agent kit hook", "extend AbstractHook", "add a tool lifecycle hook", "log tool executions", "audit trail hook", "track tool calls", or needs guidance on building observation/logging/metrics extensions for Hedera Agent Kit tools. Hooks are non-blocking — for blocking validation rules use the policy skill instead.
This skill should be used when the user asks to "create a hedera policy", "block a tool", "limit recipients", "extend AbstractPolicy", "reject a tool", "enforce a threshold", "rate limit a tool", "block transfers over X", "allowlist tools", or needs guidance on writing blocking validation rules for Hedera Agent Kit tools. Policies block tool execution by throwing — for non-blocking observation use the hook skill instead.
How to create topics, submit messages, and subscribe to real-time message streams on Hedera using the Hiero JavaScript SDK (@hiero-ledger/sdk). Use this skill whenever the user wants to work with Hedera Consensus Service (HCS), including topic creation, message submission, pub/sub messaging, mirror node subscriptions, chunked large messages, topic fees, or any consensus-related operation in JavaScript or TypeScript. Also trigger when users mention @hashgraph/sdk topic operations, event logging on Hedera, decentralized messaging, audit trails, or ordered message streams.
How to create, manage, and transfer tokens on Hedera using the Hiero JavaScript SDK (@hiero-ledger/sdk). Use this skill whenever the user wants to work with fungible tokens, NFTs, token creation, minting, burning, transfers, token association, custom fees (fixed, fractional, royalty), airdrops, KYC/freeze/wipe/pause operations, or any HTS (Hedera Token Service) operation in JavaScript or TypeScript. Also trigger when users mention @hashgraph/sdk token operations, ERC-20/ERC-721 equivalents on Hedera, or tokenization on the Hedera network.
Hedera Schedule Service (HSS) smart contract development. Use when creating or interacting with scheduled transactions from Solidity via the Schedule Service system contract at 0x16b (e.g. scheduleNative for token creation, scheduleCall for generalized contract calls, authorizeSchedule, signSchedule, deleteSchedule, or querying scheduled token info).