// the find
foundry-rs/book
A book on all things Foundry, available at https://getfoundry.sh.
The official documentation site for Foundry, the Ethereum development toolchain (forge, cast, anvil, chisel). It's a Vocs-based static site covering everything from basic project setup to advanced cheatcodes, invariant testing, and a full CLI reference. Target audience is Solidity developers using Foundry as their primary dev/test/deploy environment.
The CLI reference is exhaustively generated from the actual tool help output, so it stays in sync with the binary rather than drifting. The linting section documents ~50 specific lint rules with individual pages — genuinely useful when you hit a forge lint warning and need to know what it means. Invariant testing and fork testing guides are more practical than most docs sites: they show the patterns that actually work, not toy examples. Active maintenance with 115 contributors and a commit two days ago means it's not a snapshot frozen in 2022.
The repo is documentation only — no actual Foundry code, so stars and forks here reflect doc engagement, not tool adoption (the real foundry-rs/foundry repo has 9k+ stars). Migrated from mdBook to Vocs, but that migration adds a bun/Node dependency to what is otherwise a Rust-native toolchain — slightly odd for the target audience. The guides section has some notable gaps: no dedicated page on testing with EIP-4337 account abstraction or multi-sig flows, which come up constantly in modern Solidity dev. Error messages from forge test failures aren't cross-referenced to the troubleshooting section, so the docs don't help you find answers when the tool itself points you here.