---
title: "Adrian Studio (@adrianstudio3) | Hashnode"
description: "Java, Spring Boot, and notification failure boundaries. Read the latest articles by Adrian Studio on Hashnode."
url: "https://hashnode.com/@adrianstudio3"
---

@adrianstudio3

# Adrian Studio

@adrianstudio3 · Joined October 2026

Java, Spring Boot, and notification failure boundaries.

### [15 Ways AI Coding Agents Fail in Real Repos (and the Guardrails That Fix Them)](https://adrianstudio3.hashnode.dev/15-ways-ai-coding-agents-fail-in-real-repos-and-the-guardrails-that-fix-them?utm_source=hashnode&utm_medium=feed)

Around week three of using coding agents, most teams hit the same wall. The agent is clearly busy: long transcripts, dozens of edited files, confident summaries. But ask "what shipped, and is it corre

7 min read · [adrianstudio3.hashnode.dev](https://adrianstudio3.hashnode.dev/15-ways-ai-coding-agents-fail-in-real-repos-and-the-guardrails-that-fix-them?utm_source=hashnode&utm_medium=feed)

[2](https://hashnode.com/posts/15-ways-ai-coding-agents-fail-in-real-repos-and-the-guardrails-that-fix-them/6acd7565f368324e95be4626) [Oct 13](https://hashnode.com/posts/15-ways-ai-coding-agents-fail-in-real-repos-and-the-guardrails-that-fix-them/6acd7565f368324e95be4626)

### [Two workers, one pending notification: who gets to send?](https://adrianstudio3.hashnode.dev/two-workers-one-pending-notification-who-gets-to-send?utm_source=hashnode&utm_medium=feed)

Two notification workers read the same persisted job. Both see PENDING. If each treats that read as permission to call the provider, both may send. A shared database row can coordinate the workers, bu

4 min read · [adrianstudio3.hashnode.dev](https://adrianstudio3.hashnode.dev/two-workers-one-pending-notification-who-gets-to-send?utm_source=hashnode&utm_medium=feed)

[Oct 6](https://hashnode.com/posts/two-workers-one-pending-notification-who-gets-to-send/6ac495c3f288126b36f711db)

### [After the idempotency window: a late retry decision](https://adrianstudio3.hashnode.dev/after-the-idempotency-window-a-late-retry-decision?utm_source=hashnode&utm_medium=feed)

A queued retry can still carry the original key after the provider has stopped remembering it. The key in your database and the provider's deduplication record have different lifetimes. A recovery pro

5 min read · [adrianstudio3.hashnode.dev](https://adrianstudio3.hashnode.dev/after-the-idempotency-window-a-late-retry-decision?utm_source=hashnode&utm_medium=feed)

[Oct 4](https://hashnode.com/posts/after-the-idempotency-window-a-late-retry-decision/6ac21a75a3c95a8e8b8cb0c2)

### [A notification timeout can hide a successful send](https://adrianstudio3.hashnode.dev/a-notification-timeout-can-hide-a-successful-send?utm_source=hashnode&utm_medium=feed)

Disclosure: I sell the Notification Failure Kit linked below. This article was drafted with AI and checked against the lab’s published scope. A notification worker can time out after the provider has

4 min read · [adrianstudio3.hashnode.dev](https://adrianstudio3.hashnode.dev/a-notification-timeout-can-hide-a-successful-send?utm_source=hashnode&utm_medium=feed)

[Oct 2](https://hashnode.com/posts/a-notification-timeout-can-hide-a-successful-send/6abf6c238dd663df523f405f)