Blog: Py Data

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How to Monitor JSON API Freshness in dbt with Custom Assertions

Ever built an incremental JSON‑API pipeline only to discover weeks later that the upstream endpoint stopped emitting new rows, silently corrupting …

Why Airflow in Production Needs Retries, SLA, and Idempotent Tasks: 2‑Year Lessons

When a JSON‑API ingestion DAG fails silently, downstream analytics can drift, and you may never notice the missing rows. The reliable fix is to mak…

How to Craft System Prompts that Guide Multi‑Step AI Agents with Real RSS Data

You’re tired of chasing flaky LLM responses—agents that skip a step, repeat work, or hallucinate facts—especially when you’re feeding them live RSS…

How to Choose the Right Incremental Loading Strategy for a JSON API Data Warehouse

You're extending a DVC‑managed RSS pipeline to ingest a larger JSON‑based source and you wonder whether pulling the entire endpoint each day is…

How to Decouple LLM Trading Agents with a Validated Multi-Agent Message Bus

How to Decouple LLM Trading Agents with a Validated Multi-Agent Message Bus

If your NEPSE LLM trading agent calls the model directly inside your trade decision function, a single malformed JSON payload or a provider outag…

From RSS to Insight: Building a Production‑Ready RAG System with the Stripe Blog Feed

When my data‑science team needed instant answers about Stripe’s latest product moves, we hit a wall: pulling the entire blog dump every time we ans…

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