Swapper Deposit
swapperfinance/swapper-toolkit
Deposit and bridge funds into a wallet or protocol using Swapper Finance.
Ethereum Layer 2 landscape — Arbitrum, Optimism, Base, zkSync, Scroll, Unichain, Celo, Robinhood Chain, and more.
Install L2s
$ npx skills add austintgriffith/ethskills --skill l2s -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install austintgriffith/ethskills l2s --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/l2s .claude/skills/l2s && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .claude/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/austintgriffith/ethskills/tree/master/l2sType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add austintgriffith/ethskills --skill l2s -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install austintgriffith/ethskills l2s --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/l2s .agents/skills/l2s && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .agents/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add austintgriffith/ethskills --skill l2s -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install austintgriffith/ethskills l2s --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/l2s .cursor/skills/l2s && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .cursor/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/austintgriffith/ethskills.git --path l2s--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add austintgriffith/ethskills --skill l2s -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install austintgriffith/ethskills l2s --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/l2s .gemini/skills/l2s && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .gemini/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install austintgriffith/ethskills l2sInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add austintgriffith/ethskills --skill l2s -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .github/skills && cp -r skills-src/l2s .github/skills/l2s && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .github/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add austintgriffith/ethskills --skill l2s -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install austintgriffith/ethskills l2s --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/l2s .opencode/skills/l2s && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "l2s" agent skill from https://github.com/austintgriffith/ethskills/tree/master/l2s into .opencode/skills/l2s/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "l2s", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
l2s- GitHub stars
- 294
- Token cost
- ~3.7k tokens
- SKILL.md length
- 1,672 words
- Files
- 1
- Skills in repo
- 22
- Repo updated
- First seen
- Licence
- None found
At a glance
Ethereum Layer 2 landscape — Arbitrum, Optimism, Base, zkSync, Scroll, Unichain, Celo, Robinhood Chain, and more.
- Deploying cross-chain
- SKILL.md covers What You Probably Got Wrong, L2 Comparison Table (Mar 2026), Cost Comparison (Real… and L2 Selection Guide, plus 7 more sections
- Reaches mainnet.base.org and arb1.arbitrum.io; needs PRIVATE_KEY
- A user asks about Ethereum scaling
What it does
L2s is an agent skill from austintgriffith/ethskills. Ethereum Layer 2 landscape — Arbitrum, Optimism, Base, zkSync, Scroll, Unichain, Celo, Robinhood Chain, and more. How they work, how to deploy on them, how to bridge, when to use which. Includes per-chain DeFi ecosystems and critical corrections. Use when choosing an L2, deploying cross-chain, or when a user asks about Ethereum scaling.
Its SKILL.md is about 3.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Business, Finance & HR, covering Crypto and DeFi analysis. It works with Ethereum and Arbitrum. The repository describes itself as: The missing knowledge between AI agents and production Ethereum.
When your agent uses it
- Deploying cross-chain
- A user asks about Ethereum scaling
Example prompts
- “/l2s”
What it can do on your machine
Read from SKILL.md and the folder at commit 06ea4ef. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
mainnet.base.orgarb1.arbitrum.iomainnet.optimism.iomainnet.unichain.orgforno.celo.orgrpc.mainnet.chain.robinhood.com
Also links to:
l2beat.comdefillama.comeips.ethereum.orgarbiscan.iobasescan.orgoptimistic.etherscan.iouniscan.xyzceloscan.iorobinhoodchain.blockscout.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
PRIVATE_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
L2s loads about 3.7k tokens when it runs. Until then it costs about 86 tokens; SKILL.md has 1,672 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,672 words (~3,704 tokens).
“L2 costs: You think $0.01-2.00 per transaction. Reality: $0.001-0.003 for swaps, $0.0003 for transfers. After EIP-4844, L2 batch costs dropped from $50-500 to $0.01-0.50.”
- name
- l2s
Files
Just SKILL.md in l2s of austintgriffith/ethskills.
Open the folder on GitHubat commit 06ea4ef
Compare with similar skills
L2s next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| L2s this skillaustintgriffith/ethskills | 294 | — | ~3.7k | Automated safety check: Pass | None | |
| Swapper Depositswapperfinance/swapper-toolkit | 852 | — | ~1.8k | Automated safety check: Pass | MIT | |
| SurfBlockRunAI/ClawRouter | 6.6k | — | ~4k | Automated safety check: Pass | MIT | |
| ZyfaiBankrBot/skills | 1.2k | 1 repos | ~6.8k | Automated safety check: Pass | None | |
| Juicebox V6BankrBot/skills | 1.2k | — | ~1.5k | Automated safety check: Pass | MIT | |
| Okx Wallet PortfolioLeoYeAI/openclaw-master-skills | 2.2k | — | ~4.2k | Automated safety check: Notes | MIT |
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Related
Categories
Questions about L2s
What does L2s do?
Ethereum Layer 2 landscape — Arbitrum, Optimism, Base, zkSync, Scroll, Unichain, Celo, Robinhood Chain, and more. L2s is an agent skill from austintgriffith/ethskills. Ethereum Layer 2 landscape — Arbitrum, Optimism, Base, zkSync, Scroll, Unichain, Celo, Robinhood Chain, and more.
When should I use L2s?
L2s fits situations like: deploying cross-chain; A user asks about Ethereum scaling.
How do I install L2s in Claude Code?
Run `npx skills add austintgriffith/ethskills --skill l2s -a claude-code`. Or copy the skill folder (l2s in austintgriffith/ethskills) into .claude/skills/l2s in your project. Claude Code loads it when a task matches its description.
How do I install L2s in Codex?
Run `npx skills add austintgriffith/ethskills --skill l2s -a codex`. Or copy the skill folder (l2s in austintgriffith/ethskills) into .agents/skills/l2s in your project. Codex loads it when a task matches its description.
Can I use L2s in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add austintgriffith/ethskills --skill l2s -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/l2s, .gemini/skills/l2s, .github/skills/l2s and .opencode/skills/l2s in your project.
What does L2s need to run?
Going by SKILL.md and its folder, L2s needs credentials named PRIVATE_KEY.
Does L2s access the network?
SKILL.md names 15 domains. In commands or code: mainnet.base.org, arb1.arbitrum.io, mainnet.optimism.io, mainnet.unichain.org, forno.celo.org and rpc.mainnet.chain.robinhood.com; the agent is likely to contact these when it follows the instructions. As links in the text: l2beat.com, defillama.com, eips.ethereum.org, arbiscan.io, basescan.org, optimistic.etherscan.io, uniscan.xyz, celoscan.io and robinhoodchain.blockscout.com. This is read from the text; nothing was executed.
Is L2s safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does L2s use?
No licence was found for L2s or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does L2s use?
About 3.7k tokens (SKILL.md is roughly 15k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to L2s?
Skills that share tags, products or a category with L2s: Swapper Deposit (swapperfinance/swapper-toolkit, 852 stars), Surf (BlockRunAI/ClawRouter, 6.6k stars), Zyfai (BankrBot/skills, 1.2k stars) and Juicebox V6 (BankrBot/skills, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains L2s?
austintgriffith (a GitHub user) maintains it in austintgriffith/ethskills, which has 294 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on August 20, 2026.
Source: austintgriffith/ethskills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.