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Api Security Hardening

Checked
secondsky·vlatest·security·MIT

Helps with API, security as part of implementing security and authentication workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add secondsky/claude-skills --skill api-security-hardening -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

secondsky

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned secondsky/claude-skills at 8837836131.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
8837836131
Manifest
plugins/api-security-hardening/skills/api-security-hardening/SKILL.md
Scanned
2 files, 231 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill hardens API security configurations for AI agents, enabling them to enforce strict authentication protocols and validate incoming requests against known threat patterns. It ensures that agent interactions with backend services remain secure by automatically applying defense-in-depth strategies to prevent unauthorized access and injection attacks.

When to use it

  • Deploying new API endpoints that require immediate protection against common web vulnerabilities.
  • Integrating AI agents into production environments where data confidentiality is critical.
  • Auditing existing API connections to identify missing security headers or weak authentication methods.
  • Enforcing compliance with industry standards like OWASP Top 10 for automated agent workflows.

Key capabilities

  • Automatically configures secure HTTP headers to mitigate cross-site scripting and clickjacking risks.
  • Implements rate limiting and request validation to block brute-force attacks.
  • Validates API keys and tokens before allowing any agent-initiated service calls.
  • Detects and blocks suspicious traffic patterns based on predefined security rules.

Example prompts

  • "Apply SecondSky's API security hardening to my new endpoint before I expose it publicly."
  • "Scan my current API configuration for missing security headers and fix them automatically."
  • "Enable strict token validation and rate limiting for all requests coming from my AI agent."

Tips & gotchas

Ensure your API endpoints are already deployed with basic SSL/TLS support before applying advanced hardening rules. This skill complements, but does not replace, manual code reviews for logic-level vulnerabilities.