OpenClaw Skills Security

1. Why Skills Security Matters

OpenClaw skills are plugins that add features-browser control, email, calendar, custom APIs, and more. They run in the same environment as your agent and can access credentials, the filesystem, and the network. A malicious or buggy skill can:

• Leak API keys and secrets - Logging, exfiltration, or accidental exposure in responses.
• Execute unintended commands - Shell or tool abuse if the skill is poorly written or hostile.
• Act as a prompt-injection vector - Passing untrusted data into the model without clear boundaries. See Prompt Injection Defense.
• Introduce vulnerable dependencies - Outdated or compromised npm packages.

Security researchers from Cisco, CrowdStrike, and Snyk have highlighted risks around the OpenClaw gateway and the skills marketplace. Snyk reported that approximately 7.1% of analyzed ClawHub skills could leak credentials-for example, by logging secrets, embedding them in error messages, or sending them to external endpoints. Media coverage (e.g. The Register) and industry reports have also documented malware and fake crypto tools in the marketplace. Auditing skills before and after installation is essential for personal, business, and enterprise deployments.

2. Before Installing a Skill

Review source and publisher

• Prefer skills from known publishers or with visible source code (e.g. GitHub links).
• Check download counts, ratings, and recent updates-but do not rely on popularity alone.
• Read the skill’s description and required permissions; avoid skills that request more access than needed.

Pin versions

Pin skills to specific versions in your configuration so that automatic or accidental updates do not pull in malicious or broken changes. Document the version you use and review release notes before upgrading.

Use the security audit command

When available, run openclaw security audit (or the equivalent in your OpenClaw version) to scan installed skills and configuration for known issues, credential exposure, and policy violations. Run it after every new skill install and periodically as part of your Security Checklist.

# Example: run security audit
openclaw security audit

3. Malicious Skill Detection

Watch for these signs that a skill may be malicious or vulnerable:

• Unexpected network calls - Skills that contact unknown or external IPs/domains, especially with sensitive data.
• Broad file or filesystem access - Reading or writing outside the documented scope (e.g. config files, SSH keys, credential stores).
• Credential usage that doesn’t match the feature - A “weather” skill that requests full API key scope.
• Obfuscated or minified code - Hard-to-review code increases the risk of hidden behavior.
• Fake or misleading descriptions - Promises of “free crypto” or “guaranteed returns” often accompany scam skills; industry reports have cited fake crypto tools in the marketplace.
• No visible source or unmaintained repo - No way to verify behavior or get fixes.

Enable audit logging and monitoring so you can spot unusual tool use, failed auth, or unexpected outbound connections. If you suspect a skill, disable it immediately, rotate any exposed credentials, and check Known Vulnerabilities and official advisories for related incidents.

4. Credential Leak Prevention

To reduce the impact of credential leaks from skills:

• Store secrets in environment variables or a secrets manager - Not in config files that skills might read. See Credential Management.
• Limit which credentials skills can access - Only pass the minimum required; avoid giving skills broad API keys or root access.
• Set API spending limits - So that a compromised or buggy skill cannot burn through your LLM or third-party API budget.
• Run openclaw security audit regularly - To catch misconfigurations and known bad patterns.

Combine these with network isolation and sandbox or tool restrictions so that even if a skill is compromised, its blast radius is limited.

5. Safe Installation and Update Workflow

1. Read the skill’s docs and required permissions; confirm the publisher or source when possible.
2. Install in a test or staging environment first if you have one.
3. Pin the skill version in your config.
4. Run openclaw security audit after installation.
5. Monitor logs for the first few days for unexpected network calls or errors.
6. When updating, review release notes and run the audit again; rotate credentials if the skill had access and an update addressed a security issue.

For installation steps and marketplace overview, see Skills Marketplace Guide and Installing Skills.

6. Common Issues and Quick Fixes

Need more help? See the Troubleshooting Guide and Known Vulnerabilities for CVEs and ClawHub advisories.

7. Security Checklist for Skills

Use this list alongside the main Security Checklist:

• ☐ Only install skills from sources you’ve reviewed (publisher, repo, or docs).
• ☐ Pin skill versions in configuration.
• ☐ Run openclaw security audit after each new skill install and on a regular schedule (e.g. monthly).
• ☐ Store credentials in environment variables or a secrets manager; avoid putting secrets in config that skills can read.
• ☐ Set API spending limits where possible.
• ☐ Monitor logs for unexpected network calls, file access, or credential use.
• ☐ Bookmark Known Vulnerabilities and official security advisories for CVE and ClawHub incident updates.

8. Related Resources

9. Next Steps

After securing your skills setup, consider:

• Full Security Best Practices - Network, sandbox, prompt injection, Docker.
• Monitoring & Logging - Audit logs and alerts for skill and agent activity.
• Use Cases - Explore automation ideas with security in mind.
• ClawHub - Discover and install skills using the safe workflow above.