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//fork-mainnet

command

Testing

Fork mainnet for local testing (Hardhat/Foundry). Test against live state.

99
Quality Score

Universal Compatibility

Claude
Opus 4.5 • Sonnet 4
Gemini
3.0 Pro • 2.5 Flash
OpenAI
GPT-5.1 • o3
612
Installs
167
Remixes
2
Dependencies
Installation
npx @gicm/cli add command/fork-mainnet
Installs the standard version for Claude.
This will install to your .claude/commands/ directory
Provider Requirements
E2BRequired

Install required providers before running this item.

Required Dependencies

F
/Foundry Testing Expert
agent
A
/Alchemy MCP
mcp

Used By

/
//impersonate-account
command

Tags

TestingForkingDevelopment

Related Items

/
//test-coverage
Run coverage report for smart contracts (forge coverage / hardhat coverage).
/
//impersonate-account
Impersonate any address in local fork for testing.
/
//snapshot-state
Create Foundry state snapshot for testing.