Day 114 of 133
Design AI customer-support agent + DSA review
Tool catalog; escalation policy; quality eval offline/online.
DSA · NeetCode Graphs
- Clone GraphDSA · Graphs
Interview questions to prep
- Is this BFS, DFS, or Union-Find? Defend the choice over the other two.
- Walk through complexity in terms of V and E. Where do those costs come from?
- How would you handle disconnected components, self-loops, or duplicate edges?
ML System Design · AI customer-support agent
Interview questions to prep
- Walk me through designing an LLM-based customer-support agent for a fintech.
- How would you decide when to escalate to a human?
- How do you measure ticket resolution quality offline and online?
Interview questions to prep
- What tools would you give the agent (account lookup, refund, ticket create) and what guardrails?
- How would you scope a 'refund' tool so the agent can't accidentally refund $1M instead of $100?
References & further reading
- Anthropic — Building Effective Agents ↗Anthropic
- Eugene Yan — applied ML writing ↗Eugene Yan