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在 OpenClaw 中安装
/install use-arc
功能描述
Provide instructions on how to build with Arc, Circle's blockchain where USDC is the native gas token. Arc offers key advantages: USDC as gas (no other nativ...
安全使用建议
This skill appears to be the right kind of documentation for developing on Arc, but it has some risky and inconsistent pieces you should address before using it: 1) The SKILL.md expects ARC_TESTNET_RPC_URL and a PRIVATE_KEY but the skill metadata lists no required env vars — ask the publisher to declare these explicitly so you know what secrets are needed. 2) Do not use long-lived mainnet private keys for testing; use ephemeral testnet keys and a separate secrets manager or encrypted keystore. 3) Avoid passing private keys on the CLI; prefer keystores, hardware wallets, or interactive/import flows. 4) Be cautious about running remote installers piped to shell (curl | bash); verify the installer URL and checksum or install Foundry via a package manager or verified release. 5) Confirm the skill will only be invoked when you ask it to (it is not always-enabled), and review examples in the SKILL.md to ensure they match your security posture. If you rely on this skill in an automated agent, require the publisher to fix the metadata mismatch and remove/replace insecure install and CLI examples.
功能分析
Type: OpenClaw Skill
Name: use-arc
Version: 0.1.0
The skill bundle provides legitimate instructions and documentation for building on Circle's Arc blockchain. It includes standard developer setup steps, such as installing Foundry via its official script, and proactively includes security rules for the AI agent to prevent private key exposure and ensure safe environment variable usage (SKILL.md).
能力评估
Purpose & Capability
The name/description and the SKILL.md content are coherent: the document provides instructions for building on Arc Testnet and covers frontend, contract, and bridging patterns. However, the SKILL.md expects runtime credentials (ARC_TESTNET_RPC_URL and PRIVATE_KEY) that are not declared in the registry metadata (requires.env is empty). Declaring required credentials in metadata should match what the instructions need.
Instruction Scope
The instructions include sensitive operational steps: they reference setting PRIVATE_KEY environment variable and show a forge create command that uses --private-key $PRIVATE_KEY. The SKILL.md does include a security rule advising against passing private keys as CLI flags in deployed environments, but the example still demonstrates the insecure pattern (even if 'local only'). The doc also instructs downloading and running a remote install script for Foundry (curl | bash). These actions are within the skill's scope (deploying contracts) but introduce clear security risks that users must manage.
Install Mechanism
The skill is instruction-only (no install spec), which reduces surface area. However, it recommends installing Foundry with a remote installer via `curl -L https://foundry.paradigm.xyz | bash && foundryup`. Piping remote scripts to a shell is a high-risk pattern because arbitrary code is executed from the network; although common for some developer tools, it should be called out and replaced with safer install guidance or verification steps.
Credentials
SKILL.md expects ARC_TESTNET_RPC_URL and PRIVATE_KEY at runtime. Requesting a deployer private key is proportionate to a deployment skill, but the registry metadata does not declare these required env vars (nor a primary credential). This mismatch prevents automated reviewers from understanding the credential needs and increases the risk of accidental key exposure. The instructions also show an example that passes a private key on the CLI, which is explicitly discouraged elsewhere in the same document — inconsistent guidance that can lead to insecure usage.
Persistence & Privilege
The skill does not request always:true, does not declare system-level config paths, and has no install script that would alter agent-wide settings. It is instruction-only and therefore does not request persistent agent privileges beyond normal autonomous invocation (the default).
如何使用
- 确保已安装 OpenClaw（本地或 Docker 部署）
- 在对话框中输入安装命令：
/install use-arc - 安装完成后，直接呼叫该 Skill 的名称或使用
/use-arc触发 - 根据 Skill 的参数说明提供必要输入，即可获得结构化输出
版本历史
v0.1.0
use-arc v0.1.0 initial release
- Provides instructions for building with Arc, Circle's USDC-native EVM chain (testnet only).
- Includes setup, network details, token addresses, and configuration steps for Foundry, Hardhat, viem/wagmi.
- Lists core concepts (USDC gas, dual decimals, EVM compatibility, testnet rules).
- Details security rules and development best practices specific to Arc.
- Documents how to bridge USDC to Arc and reference additional Circle developer skills.
- Includes direct links to Arc docs, explorer, and Circle resources.
元数据
常见问题
Use Arc 是什么？
Provide instructions on how to build with Arc, Circle's blockchain where USDC is the native gas token. Arc offers key advantages: USDC as gas (no other nativ... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 224 次。
如何安装 Use Arc？
在 OpenClaw 或 Claude Code 对话框中运行命令「/install use-arc」即可一键安装，无需额外配置。
Use Arc 是免费的吗？
是的，Use Arc 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。
Use Arc 支持哪些平台？
Use Arc 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（cross-platform）。
谁开发了 Use Arc？
由 Madelyn（@mscandlen3）开发并维护，当前版本 v0.1.0。
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