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Skills/Security
spencermarx avatar

V3 Security Overhaul

spencermarx/open-code-review

This is a specialized security agent for claude-flow v3 that patches three critical CVEs and implements secure-by-default patterns. It migrates SHA-256 password hashing to bcrypt, removes hardcoded credentials, updates vulnerable dependencies, and adds input validation with Zod schemas. The skill orchestrates parallel security tasks using dedicated agents for threat modeling, CVE remediation, and TDD security testing. Worth noting that it includes practical examples for path traversal prevention and safe command execution without shell interpretation. If you're upgrading to v3 or inherited a codebase with known security debt, this gives you a structured framework to fix it systematically rather than piecemeal.

GitHub stars
240
last updated
Jun 11, 2026
View on GitHubSave

Install

$ npx -y skills add spencermarx/open-code-review --skill "V3 Security Overhaul" --agent claude-code

Installs into .claude/skills of the current project.

Files

V3 Security Overhaul

What This Skill Does

Orchestrates comprehensive security overhaul for claude-flow v3, addressing critical vulnerabilities and establishing security-first development practices using specialized v3 security agents.

Quick Start

# Initialize V3 security domain (parallel)
Task("Security architecture", "Design v3 threat model and security boundaries", "v3-security-architect")
Task("CVE remediation", "Fix CVE-1, CVE-2, CVE-3 critical vulnerabilities", "security-auditor")
Task("Security testing", "Implement TDD London School security framework", "test-architect")

Critical Security Fixes

CVE-1: Vulnerable Dependencies

npm update @anthropic-ai/claude-code@^2.0.31
npm audit --audit-level high

CVE-2: Weak Password Hashing

// ❌ Old: SHA-256 with hardcoded salt
const hash = crypto.createHash('sha256').update(password + salt).digest('hex');

// ✅ New: bcrypt with 12 rounds
import bcrypt from 'bcrypt';
const hash = await bcrypt.hash(password, 12);

CVE-3: Hardcoded Credentials

// ✅ Generate secure random credentials
const apiKey = crypto.randomBytes(32).toString('hex');

Security Patterns

Input Validation (Zod)

import { z } from 'zod';

const TaskSchema = z.object({
  taskId: z.string().uuid(),
  content: z.string().max(10000),
  agentType: z.enum(['security', 'core', 'integration'])
});

Path Sanitization

function securePath(userPath: string, allowedPrefix: string): string {
  const resolved = path.resolve(allowedPrefix, userPath);
  if (!resolved.startsWith(path.resolve(allowedPrefix))) {
    throw new SecurityError('Path traversal detected');
  }
  return resolved;
}

Safe Command Execution

import { execFile } from 'child_process';

// ✅ Safe: No shell interpretation
const { stdout } = await execFile('git', [userInput], { shell: false });

Success Metrics

  • Security Score: 90/100 (npm audit + custom scans)
  • CVE Resolution: 100% of critical vulnerabilities fixed
  • Test Coverage: >95% security-critical code
  • Implementation: All secure patterns documented and tested
SKILL.md on GitHub

Sponsors

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Details

Repository
github.com/spencermarx/open-code-review
Categories
Security, Git & Pull Requests, Code Review & Quality
License
Apache-2.0
First seen
Jun 11, 2026

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