cohere-data-handling

# Cohere Data Handling ## Overview Handle sensitive data when calling Cohere APIs. Cohere processes text server-side for Chat, Embed, Rerank, and Classify — any PII in your input reaches their servers. This skill covers pre-call redaction, post-call scrubbing, and compliance patterns. ## Prerequisites - Understanding of GDPR/CCPA requirements - `cohere-ai` SDK installed - Database for audit logging ## Data Flow Awareness ``` Your App → [PII Redaction] → Cohere API → [Response Scrubbing] → Your App → User Key point: Everything you send to cohere.chat(), cohere.embed(), etc. is processed on Cohere's servers. Redact BEFORE the API call. ``` ## Instructions ### Step 1: PII Detection ```typescript interface PIIFinding { type: string; match: string; start: number; end: number; } const PII_PATTERNS: Array<{ type: string; regex: RegExp }> = [ { type: 'email', regex: /[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/g }, { type: 'phone', regex: /\b(\+\d{1,3}[-.]?)?\d{3}[-.]?\d{3}[-.]?\d{4}\b/g }, { type: 'ssn', regex: /\b\d{3}-\d{2}-\d{4}\b/g }, { type: 'credit_card', regex: /\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b/g }, { type: 'ip_address', regex: /\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b/g }, ]; function detectPII(text: string): PIIFinding[] { const findings: PIIFinding[] = []; for (const { type, regex } of PII_PATTERNS) { for (const match of text.matchAll(new RegExp(regex))) { findings.push({ type, match: match[0], start...