Is the Clone Contracts skill free?

Yes. The skill itself is free from TheSchnilch/CloneContractsSkill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Clone Contracts SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.

How do I install Clone Contracts?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Clone Contracts with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Clone Contracts

Pulls verified Solidity source from Etherscan V2, resolves proxies, rewrites @-imports to relative paths.

by TheSchnilch · TheSchnilch/CloneContractsSkill

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 8.8/10
Tested: Jul 15, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Jul 18, 2026 · a4c94ca

Ran the core pipeline live on synthetic Etherscan-style JSON: it correctly split a multi-file source, rewrote an `@openzeppelin/...` import to the right relative `../lib/...` path, and laid out contracts/interfaces/lib exactly as documented. Real friction: SKILL.md itself says 'run ./setup.sh', which builds a venv and a ~/.local/bin wrapper and needs a free Etherscan API key — a plain folder copy does not give you a working `clone-external` command. Also caught a real bug: an invalid/missing API key crashes with `'str' object has no attribute 'get'` instead of a clean error.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 4/5

What Clone Contracts does

Fetches verified contract source for any address across 20+ EVM chains via the Etherscan V2 API, auto-resolves proxy contracts to their implementation, and rewrites npm/Foundry-style @-imports to relative paths so the clone reads cleanly without remappings. Triggers when auditing an external integration, tracing a cross-contract call, or needing the source of a contract not in the main codebase.

How to install Clone Contracts

git clone https://github.com/TheSchnilch/CloneContractsSkill
cd CloneContractsSkill && ./setup.sh   # creates venv + ~/.local/bin/clone-external wrapper, prompts for a free ETHERSCAN_API_KEY
# (a bare `cp -r` alone will NOT make the `clone-external` command work)

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Clone Contracts

/clone-contracts Pulls verified Solidity source from Etherscan V2, resolves proxies, rewrites @-imports to relative paths.

It also activates on plain-language prompts like these:

Clone the verified WETH contract source so I can read it locally
Pull this proxy contract's implementation source from Etherscan
Fetch this contract and rewrite its imports to relative paths

Frequently asked questions

Is the Clone Contracts skill free?: Yes. The skill itself is free from TheSchnilch/CloneContractsSkill. SkillProof publishes the install command and an independent test verdict at no cost.
Does Clone Contracts work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Works with setup. Ran the core pipeline live on synthetic Etherscan-style JSON: it correctly split a multi-file source, rewrote an `@openzeppelin/...` import to the right relative `../lib/...` path, and laid out contracts/interfaces/lib exactly as documented. Real friction: SKILL.md itself says 'run ./setup.sh', which builds a venv and a ~/.local/bin wrapper and needs a free Etherscan API key — a plain folder copy does not give you a working `clone-external` command. Also caught a real bug: an invalid/missing API key crashes with `'str' object has no attribute 'get'` instead of a clean error.
What is the Clone Contracts SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.
How do I install Clone Contracts?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Clone Contracts with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.