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cast-commands

Use when interacting with Ethereum contracts and data from the command line using Foundry's cast. Covers read/write calls, storage inspection, ABI encoding/decoding, block queries, and common one-liners.

skills/cast-commands/SKILL.md

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# Cast CLI Reference

## Overview

`cast` is Foundry's command-line tool for interacting with EVM chains. Read state, send transactions, decode data, and inspect contracts without writing scripts.

## Reading State (cast call)

```bash
# Read a view function
cast call 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 \
  "balanceOf(address)(uint256)" 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 \
  --rpc-url $ETH_RPC_URL