DCL Sentinel Trace — Leibniz Layer™

Publisher: @daririnch · Fronesis Labs
Version: 2.0.0
Part of: Leibniz Layer™ Security Suite

What this skill does

DCL Sentinel Trace detects and redacts personally identifiable information in AI outputs before they reach users or downstream systems.

This skill is 100% instruction-only. No text is sent to any external server. The entire analysis runs inside the agent's context window. The scanned text never leaves the agent.

What gets detected

When to use this skill

• AI output may contain personal data from user input, documents, or retrieved content
• Your pipeline requires GDPR or HIPAA compliance before delivering responses
• A coding or data agent processes datasets that may contain real PII
• You need a privacy checkpoint before logging or storing AI outputs

How to run a scan

Paste the text to scan into the conversation. The agent screens it locally against the checklist below. No network requests are made.

Step 1 — Run the detection checklist

Work through each category. For each match found, record:

• type — which PII category triggered
• redacted_sample — masked version (e.g. te****@****.com)
• severity — critical for financial/ID data, major for contact data

Step 2 — Apply verdict logic

Detection Checklist

T1 — Email Addresses (Major)

• Any string matching [text]@[domain].[tld] pattern

T2 — Phone Numbers (Major)

• International format: +[country code][number]
• Local formats: sequences of 7–15 digits with common separators

T3 — National ID / SSN (Critical)

• US SSN: three digits, two digits, four digits pattern
• National ID formats for other countries: fixed-length numeric or alphanumeric sequences in ID context

T4 — Bank Card PANs (Critical)

• 13–19 digit sequences matching major card network prefixes
• With or without spaces/dashes between groups

T5 — IBANs (Critical)

• Two-letter country code followed by two check digits and up to 30 alphanumeric characters

T6 — Crypto Wallet Addresses (Major)

• Bitcoin: Base58 strings of 25–34 chars starting with 1, 3, or bc1
• Ethereum: 42-char hex strings starting with 0x
• Other chains: similar fixed-length address patterns in wallet context

T7 — IP Addresses (Minor)

• IPv4: four octets separated by dots
• IPv6: eight groups of hex digits separated by colons

T8 — Passport / Document Numbers (Critical)

• Alphanumeric strings of 6–9 characters in passport or document number context

Output schema

{
  "verdict": "COMMIT | NO_COMMIT",
  "detections": [
    {
      "type": "email",
      "redacted_sample": "te****@****.com",
      "severity": "major"
    }
  ],
  "detection_count": 0,
  "categories_checked": ["T1","T2","T3","T4","T5","T6","T7","T8"],
  "categories_clear": ["T1","T2","T3","T4","T5","T6","T7","T8"],
  "powered_by": "DCL Sentinel Trace · Leibniz Layer™ · Fronesis Labs"
}

Where Sentinel Trace fits in the DCL pipeline

Untrusted input
        │
        ▼
DCL Prompt Firewall        ← blocks malicious input
        │ COMMIT
        ▼
      LLM
        │
        ▼
DCL Policy Enforcer        ← compliance check on output
        │ COMMIT
        ▼
DCL Sentinel Trace         ← PII redaction (instruction-only)
        │ COMMIT
        ▼
DCL Secret Leak Detector   ← credential scan
        │ COMMIT
        ▼
DCL Output Sanitizer       ← final sweep
        │ COMMIT
        ▼
DCL Semantic Drift Guard   ← hallucination check
        │ IN_COMMIT
        ▼
Safe to deliver

Privacy & Data Policy

This skill is operated by Fronesis Labs and is 100% instruction-only.

No data leaves the agent. All analysis runs entirely within the agent's context window. No content is transmitted to any server.

Full policy: https://fronesislabs.com/#privacy · Browse the full DCL Security Suite: hub.fronesislabs.com · Questions: support@fronesislabs.com

Related skills

• dcl-prompt-firewall — Input-layer injection and jailbreak detection
• dcl-secret-leak-detector — Credential and API key scan
• dcl-output-sanitizer — Final output sweep
• dcl-policy-enforcer — Compliance and regulatory check

Leibniz Layer™ · Fronesis Labs · fronesislabs.com