Individual skill
gas-optimization
Gas optimization patterns for Solidity smart contracts. Use when optimizing contract deployment cost, runtime gas usage, or reviewing gas-critical paths. Covers calldata vs memory, immutable/constant, unchecked blocks, storage packing, batch operations, and custom errors.
skills/gas-optimization/SKILL.md
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# Gas Optimization
## Measure First
Never optimize blindly. Use forge snapshots and gas reports.
```bash
# Gas report for all tests
forge test --gas-report
# Snapshot to compare before/after
forge snapshot
# ...make changes...
forge snapshot --diff