9-Layer Security
The Forge Crucible™
A defense-in-depth security architecture that wraps every LLM interaction in 9 independent protection layers. No single bypass can compromise the system.

What It Is

The Forge Crucible is a 9-layer security pipeline that processes every model input and output. Each layer operates independently — compromising one doesn't disable the others. The layers cover prompt injection detection, output scanning, threat signatures, canary tokens, provenance tracking, and more.

The 9 Layers

  1. Pattern Scanner — 88 regex patterns detect prompt injection, data exfiltration, encoded payloads, zero-width chars, and secret leaks in files and AI output
  2. Semantic Anomaly Detector — embedding-based content analysis flags chunks that are semantically inconsistent with surrounding code (catches novel injection attacks that evade pattern matching)
  3. Behavioral Tripwire — monitors tool-call sequences in real-time; detects read-then-exfiltrate and read-then-sensitive-write patterns within a 30-second window
  4. Canary Trap — UUID honeypot token injected into system prompt; if the AI outputs it in any tool call, prompt injection is confirmed as CRITICAL
  5. Threat Intelligence — updatable signature database with SHA-512 envelope validation, version monotonicity (downgrades rejected), and ReDoS guards on every pattern
  6. Command Guard — 40+ shell blocklist patterns block RCE, LOLBins, privilege escalation, and destructive filesystem operations before execution
  7. Path Sandbox — filesystem restriction with symlink-aware validation; resolves paths before checking to prevent redirect attacks
  8. Plan Verifier — test/lint/typecheck gates between multi-step plan execution; strict mode rolls back the step on verification failure
  9. Forensic Auditor — complete session audit trail logging every file read, write, edit, shell command, tool call, threat detection, and context operation with timestamps and severity classification

Why 9 Layers

Defense in depth. A prompt injection that bypasses input sanitization still hits output scanning. A tool call that evades validation still gets caught by path traversal guards. Every layer is an independent checkpoint. Attackers don't need to find one exploit — they need to chain 9.

Compliance Mapping

The Crucible maps directly to established compliance frameworks: