⚡ MCP MASTERCLASS • EPISODE 3 OFFICIAL DOWNLOAD
MCP Zero-Trust Security Sandbox Starter Kit
Stop Indirect Prompt Injections & .ENV Exfiltration
The official zero-cost security companion kit from Episode 3. Includes canonical directory jailers, sensitive credential blacklists, and secret egress firewalls in both TypeScript and Python 3.
✓ 100% Free Instant Download ($0.00)
✓ Zero External Dependencies
✓ TypeScript + Python 3 Engines
✓ Offline HTML Interactive Guide
🛑 Why Standard MCP Servers are Vulnerable
Because MCP tools run with full local machine privileges, an indirect prompt injection in an untrusted database row or scraped web page can trick your AI agent into stealing your credentials:
1. Path Traversal (../../)
Malicious payloads pass relative paths to escape project boundaries and read
.env or id_rsa.2. Poisoned Tool Returns
Untrusted web or DB content injects hidden instructions that override client system prompts.
3. Covert Egress Leaks
The agent uses network or curl tools to beacon your OpenAI, Stripe, and database secrets out.
Master The Full Architecture
The Production MCP Engineering Handbook & Action Vault
Deploy 15 enterprise blueprints, eliminate 97% of token overhead with lazy routers, and run unbreakable agent swarms.