https://nabhpatodi.com/blog/ Technical articles about AI engineering, software architecture, and production systems. en Sun, 26 Jul 2026 00:00:00 GMT https://nabhpatodi.com/blog/a-timeout-doesnt-tell-you-whether-the-write-happened/ https://nabhpatodi.com/blog/a-timeout-doesnt-tell-you-whether-the-write-happened/ Sun, 26 Jul 2026 00:00:00 GMT Retrying an external write is a guess about which of three worlds you are in. Idempotency keys, business-key deduplication, and the database invariants that make the guess unnecessary. Distributed Systems Reliability Integrations https://nabhpatodi.com/blog/tracing-a-request-youre-not-allowed-to-log/ https://nabhpatodi.com/blog/tracing-a-request-youre-not-allowed-to-log/ Sun, 19 Jul 2026 00:00:00 GMT Correlating one job across TypeScript, a queue, and Python — without turning routine telemetry into a second copy of the sensitive payloads it describes. Distributed Systems Observability Privacy Engineering https://nabhpatodi.com/blog/dont-put-a-model-where-an-if-statement-will-do/ https://nabhpatodi.com/blog/dont-put-a-model-where-an-if-statement-will-do/ Sun, 12 Jul 2026 00:00:00 GMT Every model call in a routing path converts a fact into a guess. What I learned about spending probabilistic routing only where the ambiguity is real. Multi-Agent Systems AI Engineering Architecture https://nabhpatodi.com/blog/generated-charts-are-untrusted-code/ https://nabhpatodi.com/blog/generated-charts-are-untrusted-code/ Sun, 05 Jul 2026 00:00:00 GMT Why a model-generated Mermaid diagram or ECharts spec is a program, not data, and the two-tier validation and bounded repair pipeline I built around it. AI Engineering LLM Output Validation Reliability https://nabhpatodi.com/blog/the-model-wasnt-the-hard-part/ https://nabhpatodi.com/blog/the-model-wasnt-the-hard-part/ Sun, 28 Jun 2026 00:00:00 GMT Two and a half years of building agent systems, and what I got wrong about architecture, context, evaluations, model routing, permissions, and recovery. Multi-Agent Systems AI Engineering Reliability https://nabhpatodi.com/blog/retrying-an-ai-agent-is-not-the-same-as-retrying-an-api-call/ https://nabhpatodi.com/blog/retrying-an-ai-agent-is-not-the-same-as-retrying-an-api-call/ Sun, 21 Jun 2026 00:00:00 GMT How leases, checkpoints, ownership-safe writes, and tool-history repair made Research-AI recoverable — and what the design still does not guarantee. AI Engineering Agent Reliability Distributed Systems