supply-chain-defence-audit

name: supply-chain-defence:audit description: >- This skill should be used when the user asks to "audit dependencies", "run security audit", "check for vulnerabilities", "supply chain report", "security posture", "audit npm packages", "check dependency security", or "generate SBOM". Runs a comprehensive security posture report using npm audit, lockfile-lint, Socket.dev, and dependency age analysis. Cross-references devs:deps-core for package manager commands.

Supply Chain Security Audit

Run a comprehensive security audit of the project's dependencies. This skill orchestrates multiple tools and presents a unified report.

Prerequisites

Run /supply-chain-defence:doctor first to ensure required tools are installed.

Detect Package Manager

Use the same lockfile detection as devs:deps-core:

Audit Steps

1. npm/pnpm Audit

Run the appropriate audit command (refer to devs:deps-core for exact commands):

• npm: npm audit --json
• pnpm: pnpm audit --json
• yarn: yarn npm audit --json

Parse the JSON output and summarise vulnerabilities by severity (critical, high, moderate, low).

2. lockfile-lint

Run lockfile-lint validation:

npx lockfile-lint --path <lockfile> --type <pm> --allowed-hosts npm --validate-https

Report any failures (non-https sources, unexpected hosts).

3. Socket.dev Scan (if available)

If socket CLI is available, run:

socket report create --json

Summarise the risk findings.

4. Dependency Age Analysis

For each direct dependency in package.json, check the publish date of the installed version:

npm view <package>@<version> time --json

Flag any dependency where the installed version was published within the last 5 days.

5. Maintainer Analysis

For top-level dependencies, check maintainer count:

npm view <package> maintainers --json

Flag single-maintainer packages with high download counts as higher risk (these are prime targets for account takeover attacks like the Axios incident).

6. SBOM Generation (Optional)

If @cyclonedx/cyclonedx-npm is installed and the user wants an SBOM, offer to generate:

npx @cyclonedx/cyclonedx-npm --output-file sbom.json

Report Format

Present findings as a structured report:

## Supply Chain Security Report

### Vulnerabilities (npm audit)
- X critical, Y high, Z moderate

### Lockfile Integrity
- PASS/FAIL with details

### Socket.dev Findings
- Risk summary or "Socket CLI not available"

### Recently Published Dependencies
- List any deps published in last 5 days

### High-Risk Maintainer Patterns
- List single-maintainer packages with >100k weekly downloads

### Recommendations
- Prioritised list of actions