Blogs authored by Renjie Li

Engineer, AI Agent

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The Data Comes First: Mining Real Conversations for Test Coverage

Learn how Cresta mines historical data, synthetic customers, knowledge-base Q&A pairs, and post-launch feedback to build test coverage that reflects how customers actually behave.

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Engineering
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Why AI Agent Evaluations Fail — and How the Swiss-Cheese Model Prevails

Learn about Cresta's forward-deployed team and how they approach building and iterating on AI agents.

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Engineering
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Building and Deploying Production‑Grade AI Agents: Cresta’s End‑to‑End Approach

In this post, we walk through Cresta’s full lifecycle for building and deploying production-grade AI agents.

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Engineering
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