feat: add EVM multi-chain skill (8 chains, 14 commands)

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Adds a comprehensive EVM blockchain skill with 14 commands:
- stats, wallet, tx, token, activity, gas, price (core queries)
- compare: gas + prices across all 8 chains simultaneously
- whale: scan recent blocks for large transfers (configurable min USD)
- multichain: scan same wallet across all 8 chains in parallel
- allowance: check dangerous ERC-20 approvals (Permit2, Uniswap, 1inch...)
- decode: decode tx input data via 4byte.directory
- ens: resolve ENS names <-> addresses (bidirectional)
- contract: inspect contracts (proxy detection, ERC-20/721, bytecode size)

Chains: Ethereum, BNB Chain, Base, Arbitrum One, Polygon, Optimism, Avalanche, zkSync Era

Zero external dependencies. Python stdlib only (urllib, json, argparse, threading).

Co-authored-by: Mibayy <mibay@clawhub.io>

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Mibayy 2026-05-13 19:21:42 -04:00 • committed by Teknium

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commit aa1e2edd35

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optional-skills/blockchain/evm/scripts/evm_client.py Normal file

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