---
name: "chainguard-wolfi-zero-cve-images"
description: "Build lightweight, glibc-compatible Linux containers designed for zero known vulnerabilities."
metadata:
  author: "Chainguard"
  version: "1.0.0"
  runtime_compatibility:
    - "codex"
    - "claude-code"
    - "cursor"
    - "windsurf"
triggers:
  - "use wolfi base image"
  - "build zero cve container"
  - "chainguard image migration"
permissions:
  fs_read: true
  fs_write: "workspace"
  shell_exec: false
  net_access: false
---

# Chainguard Wolfi Zero-CVE Secure Container Images

Develops container images using Wolfi OS and Chainguard Images: leveraging modern apk packages with glibc support, automated daily CVE remediation patches, minimal SBOM attestations, and non-root defaults.

## When to Invoke
Invoke this skill whenever you need to:
- use wolfi base image
- build zero cve container
- chainguard image migration

## Execution SOP & Rules
1. Set base image: FROM cgr.dev/chainguard/wolfi-base.
2. Install packages: RUN apk update && apk add --no-cache python-3.12 py3-pip.
3. Verify application runs under non-root user (USER nonroot) by default.
4. Scan image with Cosign and Trivy to verify cryptographic signature and zero open vulnerabilities.

## Verification Checklist
- Run local linting, syntax validation, and type-checks before reporting completion.
- Ensure all created or modified files adhere to workspace boundaries and avoid uncommitted secrets.
- Verify tests or build commands exit cleanly with return code 0.