Claude Code skills that give any web3 project a disposable dev chain on a URL — one your
teammate, your designer, or a judge with a phone can open, with no local anvil to keep alive.
Powered by ethui Stacks.
/plugin marketplace add ethui/skills
/plugin install ethui
/ethui:ethui-init
/ethui:ethui-init authenticates by email code and registers the MCP server for the current
project. MCP servers bind at session start, so run /mcp to reconnect (or restart the session)
before using anything else.
| command | what it does |
|---|---|
/ethui-init |
Authenticate and register the MCP server. Step zero. |
/setup-env |
Provision a stack, run your project's own deploy against it, wire the result into your existing config. |
/explain-transaction |
Decode a transaction into a narrative: calls, events, balance diffs. Works on plain mainnet hashes, no stack needed. |
/debug |
Fork at a failing block, replay, explain the cause, fix state, replay green — and leave a chain the reporter can open. |
/fund |
Impersonate a real holder and send real USDC/WETH. No faucet, no key. |
/test-e2e |
Playwright against the stack with a keyless injected wallet and snapshot isolation. |
/snapshot, /restore |
Named world states — vesting-half-done, position-underwater. |
/time-travel |
Move the chain clock. Vesting matures, auctions close. |
/share |
Explorer link plus a QR code in your terminal. |
/reset |
Nuke and re-provision, or prune disposable stacks when the quota is full. |
A local anvil --fork-url already forks, traces and mines. Stacks adds exactly three things, and
every skill here uses at least one:
- a URL other people can hit
- an explorer humans can look at
- reachability for an agent with no terminal on the box
- foundry (
cast,forge) — the skills point your own toolchain at the stack rather than reimplementing it - node 18+ for the helper scripts (standard library only, nothing is installed into your project)
- optional:
qrencodefor/share
The stack's api key is inside the rpc and explorer urls, so those urls are credentials. Anyone with the link can write to that chain. The skills warn before printing one; take the warning seriously with any stack that matters.
node --test "tests/*.test.mjs"Design and rationale: docs/superpowers/specs/2026-07-25-ethui-skills-design.md.
Platform reference: CONTEXT.md.