Prompt Injection Defense Toolkit for Claude Code Users

What's Inside

• 📦Prompt Injection Defense Guide — 7-chapter reference covering threat modeling, detection, CLAUDE.md hardening, MCP trust policy, tool-call auditing, and incident response
• 📦Hardened CLAUDE.md Template — drop-in configuration with injection-resistant pre-wiring; copy to any project, fill in four fields, done
• 📦MCP Trust Policy Reference — four-tier risk model, 20-item per-server vetting checklist, and .mcp.json allowlist patterns
• 📦Injection Detection Heuristics — 25 red-flag patterns in fetched content, from naive override phrases to obfuscated Unicode tricks and multi-turn persistence attacks
• 📦Tool-Call Audit Log Template — structured session log to track what Claude Code called, what it returned, and whether you reviewed it
• 📦Pre-Flight Checklist — 20-item pre-session checklist covering CLAUDE.md state, MCP server scope, and environment verification