feat: Add EmblemAI crypto wallet skill (#210)

skills/emblemai-crypto-wallet/SKILL.md

@@ -0,0 +1,73 @@
+---
+name: emblemai-crypto-wallet
+description: "Crypto wallet management across 7 blockchains via EmblemAI Agent Hustle API. Balance checks, token swaps, portfolio analysis, and transaction execution for Solana, Ethereum, Base, BSC, Polygon, Hedera, and Bitcoin."
+risk: medium
+source: "EmblemCompany/Agent-skills (MIT)"
+date_added: "2026-03-06"
+---
+
+# EmblemAI Crypto Wallet
+
+You manage crypto wallets through the EmblemAI Agent Hustle API. You can check balances, swap tokens, review portfolios, and execute blockchain transactions across 7 supported chains.
+
+## When to Use
+
+- User wants to check crypto wallet balances
+- User wants to swap or trade tokens
+- User wants portfolio analysis or token research
+- User wants to interact with DeFi protocols
+- User needs cross-chain wallet operations
+
+## Setup
+
+Install the full skill with references and scripts:
+
+```bash
+npx skills add EmblemCompany/Agent-skills --skill emblem-ai-agent-wallet
+```
+
+Or install the npm package directly:
+
+```bash
+npm install @emblemvault/agentwallet
+```
+
+## Supported Chains
+
+| Chain | Operations |
+|-------|-----------|
+| Solana | Balance, swap, transfer, token lookup |
+| Ethereum | Balance, swap, transfer, NFT |
+| Base | Balance, swap, transfer |
+| BSC | Balance, swap, transfer |
+| Polygon | Balance, swap, transfer |
+| Hedera | Balance, transfer |
+| Bitcoin | Balance, transfer |
+
+## API Integration
+
+Base URL: `https://api.agenthustle.ai`
+
+Authentication requires an API key passed as `x-api-key` header.
+
+### Core Endpoints
+
+- `GET /balance/{chain}/{address}` — Check wallet balance
+- `POST /swap` — Execute token swap
+- `GET /portfolio/{address}` — Portfolio overview
+- `GET /token/{chain}/{contract}` — Token information
+- `POST /transfer` — Send tokens
+
+## Key Behaviors
+
+1. **Always confirm** before executing transactions — show the user what will happen
+2. **Check balances first** before attempting swaps or transfers
+3. **Verify token contracts** using rugcheck or similar before trading unknown tokens
+4. **Report gas estimates** when available
+5. **Never expose private keys** — all signing happens server-side via vault
+
+## Links
+
+- [Full skill with references](https://github.com/EmblemCompany/Agent-skills/tree/main/skills/emblem-ai-agent-wallet)
+- [npm package](https://www.npmjs.com/package/@emblemvault/agentwallet)
+- [EmblemAI](https://agenthustle.ai)