VeChain Kit Skill

CRITICAL RULES

1. Read reference files FIRST. When the user's request involves any topic in the reference table below, read those files before doing anything else — before writing code, before making decisions. Briefly mention which files you are reading so the user can confirm the skill is active (e.g., "Reading VeChain Kit reference...").
2. Information priority for VeChain topics: (a) Reference files in this skill — always the primary source. (b) VeChain MCP tools — use @vechain/mcp-server for on-chain data, transaction building, and live network queries; use Kapa AI MCP for VeChain documentation lookups. (c) Web search — only as a last resort, and only for topics NOT covered in the reference files.
3. Prefer working directly in the main conversation for VeChain tasks. Plan mode and subagents do not inherit skill context and may fall back to web search instead of using reference files.
4. After compaction or context loss, re-read this SKILL.md to restore awareness of the reference table and operating procedure before continuing work.

Scope

Use this Skill for the VeChain Kit and dapp-kit packages specifically:

• VeChain Kit: installation, setup, configuration, Privy integration
• dapp-kit: lightweight wallet connection for non-React or minimal setups
• Wallet connection, social login (email, Google, passkey), smart accounts
• Pre-built UI components (WalletButton, TransactionModal)
• Hooks (useWallet, useSendTransaction, useCallClause, token/domain/oracle hooks)
• Theming and Privy setup
• i18n with react-i18next: bi-directional language sync (Kit ↔ host app), pre-commit/ESLint for missing or unused translation keys

For generic frontend patterns (React Query, Turborepo, state management, Chakra UI, transaction UX), see the frontend skill.

Default stack

Operating procedure

1. Check Node version

Before installing dependencies or running any command:

• Check if .nvmrc exists in the project root. If yes, run nvm use.
• If .nvmrc does not exist, create one with 20 (Node 20 LTS) and run nvm use.

2. Detect project structure

• turbo.json present → follow Turborepo conventions (apps/frontend, packages/*)
• Use useThor for Thor client access (both VeChain Kit and dapp-kit v2). useConnex is deprecated everywhere.
• Apply conditional patterns (Chakra UI, i18n, Zustand) only when the project uses them

3. Choose the right library

When to ask the user: If the project doesn't already use VeChain Kit or dapp-kit and the user hasn't specified which to use, ask before choosing. Key questions:

• Do you need social login (email, Google, passkey)? → VeChain Kit
• Do you want pre-built UI modals and hooks (WalletButton, TransactionModal, token hooks)? → VeChain Kit
• Do you want a lightweight wallet-only integration with minimal dependencies? → dapp-kit
• Non-React framework? → dapp-kit

4. Clarify before implementing

When the user's request is ambiguous or could be solved multiple ways, ask before building. Separate research from implementation.

5. Implement with VeChain-specific correctness

• Network: always explicit (mainnet/testnet/solo)
• Social login: Generic Delegator auto-enabled (users pay gas in VET/VTHO/B3TR); app-sponsored delegation optional for better UX; smart accounts; pre-fetch data before sendTransaction

6. Verify and deliver

A task is not complete until all applicable gates pass:

1. Code compiles — no build errors (npm run build or equivalent succeeds)
2. Tests pass — existing tests still pass; new logic has test coverage
3. Risk notes documented — any signing, fee, or token-transfer implications are called out

Reference files

Read the matching files BEFORE doing anything else. See Critical Rules above.