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Company Interview: Building a Safer Customer Agent on Claude (EXPLAINED)

Company BasedClaudeHard22 min read

**Architecture** LangGraph with interrupt before sensitive tools (lg-004); Bedrock or enterprise API.

TL;DR — Quick Answer

Layer input/output moderation, constitutional classifiers, tool allowlists (read-only account MCP), human escalation for money movement, full audit logs, PII minimization in prompts, eval suite for jailbreaks and financial advice boundaries.

The Interview Question

Design a customer support agent on Claude for a fintech with strict safety and compliance requirements.

Deep Explanation

Architecture LangGraph with interrupt before sensitive tools (lg-004); Bedrock or enterprise API.

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