An Ethereum Node built to run in Browser, Bun, Deno, and Node.js
This repository also configures its own agents. See what tevm tells them →
Skill Codex
Build, simulate, test, fork, and debug EVM transactions in TypeScript with tevm 1.0.0-rc.151. Use for in-process EVM scripts, typed Solidity imports, lazy mainnet or OP-stack forks, direct account and storage setup, viem-compatible contract actions, Vitest EVM tests, traces, and transaction simulation.
Skill Codex
Build, embed, and extend the Zevm Zig execution implementation. Use for the trusted JSON-RPC development node, proof-verified light client, lazy fork runtime, Zig block execution library, C or Swift FFI integration, and native Node addon work in the evmts Zevm repository.
Skill Claude CodeCodex
Input: a method name (eth, anvil, debug, or tevm), optionally its spec and the viem-style action name to expose on the client.
Skill Claude CodeCodex
Input: a failing Guillotine Mini fixture identifier and optional suite.
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Input: optionally one target label to fix first.
Skill Claude CodeCodex
Inputs are an issue number, its normalized type, and the literal approval value factory:ready.
Skill Claude CodeCodex
The issue payload is a GitHub issue number. The optional type is a maintainer hint, never an override of policy.
Skill Claude CodeCodex
Input: a package directory (for example packages/txpool) and optionally a target line-coverage percentage. Without a target, raise every threshold by five points or to what the new run measures, whichever is lower.
Skill Claude CodeCodex
Input: an observed bug with actual and expected wire values, optionally the method name and the protocol/reference behavior.
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Input: an owning package directory and an already-defined exported symbol, optionally the intended contributor-facing guide.
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Input: optionally a target viem version. Without one, use the latest release on npm.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: