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Install in OpenClaw
/install sovereign-api-hardener
Description
Hardens API endpoints against common attacks. Covers rate limiting, input validation, auth, CORS, headers, injection prevention, error handling, and monitoring.
Usage Guidance
This is an instruction-only hardening playbook (no downloads, no env keys requested). It's internally consistent and useful for auditing API code, but follow these precautions before using it: (1) Do not paste secrets, .env files, or private keys into prompts—only share code you are comfortable exposing to the agent. (2) Treat suggested code changes as recommendations: review them, run tests, and stage changes in a dev environment before deploying. (3) If the skill recommends third-party services (Redis, monitoring, rate-limit stores), validate the providers and avoid supplying production credentials directly—use least-privilege test credentials. (4) Verify the upstream project/homepage and the author's reputation before applying large-scale automated changes. If you want higher assurance, restrict the agent to a sanitized subset of your codebase or run the suggested changes in an isolated environment first.
Capability Analysis
Type: OpenClaw Skill
Name: sovereign-api-hardener
Version: 1.0.0
The OpenClaw AgentSkills skill bundle 'sovereign-api-hardener' is benign. The `SKILL.md` file provides comprehensive instructions for an AI agent to analyze API code for security vulnerabilities and suggest hardening recommendations. The instructions for the AI agent are consistently aligned with its stated purpose as an 'API security specialist' and do not contain any prompt injection attempts to subvert the agent's behavior. Code examples are illustrative of secure coding practices, and there is no evidence of data exfiltration, malicious execution, persistence mechanisms, or obfuscation. The `clawhub install` command is a standard installation instruction for the user, not a malicious command for the agent.
Capability Assessment
Purpose & Capability
The name/description promise (hardening API endpoints) matches the SKILL.md: a comprehensive checklist and many language-specific code examples for rate limiting, input validation, auth, CORS, headers, injection prevention, error handling, and monitoring. There are no unrelated environment variables, binaries, or installs requested.
Instruction Scope
The skill instructs the agent to analyze API code (routes, controllers, middleware, configs) and produce before/after fixes. That is appropriate for the stated purpose, but it means the agent will need access to your source code when invoked — do not submit secrets, private keys, or production-only env files. The instructions do not, as presented, direct the agent to exfiltrate data or call unexpected external endpoints, but you should review recommended changes before applying them.
Install Mechanism
No install spec or code files are present (instruction-only). This is low-risk because nothing will be written to disk by the skill itself.
Credentials
The skill requests no environment variables or credentials. It mentions integration patterns (e.g., Redis for distributed rate limits, logging/monitoring) in examples but does not require any secrets. This is proportionate to an audit/playbook style skill; still be cautious when following suggestions that ask you to provision or connect third-party services.
Persistence & Privilege
always is false and there are no instructions to modify other skills or global agent configs. Normal autonomous invocation is allowed (platform default). The skill does not request permanent presence or elevated privileges.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install sovereign-api-hardener - After installation, invoke the skill by name or use
/sovereign-api-hardener - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial public release of sovereign-api-hardener.
- Provides a comprehensive checklist and code patterns for API hardening.
- Covers rate limiting, input validation, authentication, CORS, security headers, injection prevention, error handling, and monitoring.
- Designed for practical, actionable defense against real-world API attacks.
- Includes implementation examples for Express.js, Flask, and Go.
- Offers clear security requirements, validation schemas, and recommended configurations.
Metadata
Frequently Asked Questions
What is Sovereign API Hardener?
Hardens API endpoints against common attacks. Covers rate limiting, input validation, auth, CORS, headers, injection prevention, error handling, and monitoring. It is an AI Agent Skill for Claude Code / OpenClaw, with 487 downloads so far.
How do I install Sovereign API Hardener?
Run "/install sovereign-api-hardener" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Sovereign API Hardener free?
Yes, Sovereign API Hardener is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Sovereign API Hardener support?
Sovereign API Hardener is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Sovereign API Hardener?
It is built and maintained by ryudi84 (@ryudi84); the current version is v1.0.0.
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