LLM Glue Questions From an AI Platform Loop
Four questions a senior engineer at an AI platform team asked me in 2024. Streaming token forwarding, retry-and-fallback across providers, tool-call validation, and a small token budgeter.
By @yukisingh
March 15, 2026
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Updated August 12, 2026
386 views
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4.3 (12)
The interviewer asked me to sketch a server-sent events handler that forwards LLM tokens from a provider to my browser client. The follow-up was about what happens when the client disconnects mid-stream.
What the loop drew on the board
The interviewer drew a chain: provider stream into a Python iterator, the iterator into an SSE response, the SSE into the client. They circled the iterator and asked what cancels the upstream call when the client goes away.
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