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V3 Security Overhaul

Review and strengthen security in claude-flow v3 by addressing dependency risks, password hashing, credential generation, input validation, file paths, and command execution. It also guides threat modeling and tests for security-critical code.

OriginalShow the original description

Complete security architecture overhaul for claude-flow v3. Addresses critical CVEs (CVE-1, CVE-2, CVE-3) and implements secure-by-default patterns. Use for security-first v3 implementation.

AI rating80/ 100See how to install

Good for

  • Reviewing security boundaries and potential threats
  • Updating dependencies and checking audit results
  • Revising password hashing and credential generation
  • Adding input checks and security tests

Overview

What it does

This skill helps review security design and implementation in claude-flow v3. It covers identifying expected threats and the scope of protection, updating and auditing dependencies, hashing passwords, and replacing hardcoded credentials. Concrete examples show password storage with bcrypt, credential generation using random numbers, and input validation with Zod. It also covers checking file paths, using execFile to avoid shell interpretation, and testing code that is important for security.

When it helps

It is intended for developers who want to consider security from the design stage when implementing claude-flow v3. Use it to inspect dependencies and authentication handling, then work through implementation, testing, and documentation of the countermeasures together.

Example requests

  • “Design the v3 threat model and security boundaries.”
  • “Review hardcoded credentials and the password storage implementation.”
  • “Organize input validation and command execution countermeasures, and add tests.”

Notes

The material targets claude-flow v3, with examples using npm audit, bcrypt, and Zod. Its CVE-1 through CVE-3 labels do not include official identifiers. Audit scores and test coverage figures are targets presented as success metrics.

This overview was written by AI (OpenAI Codex) from the public SKILL.md. Check the original below for the exact behavior.

Objective evaluation

AI rated this skill on four points using only the contents of its SKILL.md. Stars and popularity are not taken into account.

Clear instructionsIs it clear when to use it and what it does?
AGoodIt states its use during v3 implementation and lists countermeasures for dependencies, passwords, and credentials.
Concrete stepsAre steps, inputs, outputs, and examples spelled out?
AGoodIt provides an npm audit command and code examples using bcrypt, Zod, and execFile.
SafetyAre sending data, deleting files, and running commands disclosed?
BPartly lackingnpm update changes dependencies, but no checks before changes or restoration procedure are provided.
Easy setupDoes it need few tools or API keys, and are they documented?
BPartly lackingIt uses npm, bcrypt, and Zod, but provides no environment setup or library installation instructions.

The total counts each point as A = 25, B = 15, C = 5. Rated by AI (OpenAI Codex) as of Oct 21, 2026. Treat it as a guide and read the original before installing.

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Files included (1)

  • SKILL.md2.4 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

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

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