--- author: "Umesh Malik" canonical: "https://umesh-malik.com/blog/tag/observability" description: "Explore articles tagged with Observability by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Observability best practices, practical tips, and in-depth guides." title: "Umesh Malik's Blog - Observability Articles | Observability Tutorials" tokens: 886 generator: "scripts/generate-page-markdown.mjs" --- [← Back to Blog](https://umesh-malik.com/blog) # Observability 6 articles [![Cover graphic showing the four-step baseline method — 5-minute buckets, 3-week median, independent-cause match, verdict — next to the eclipse's 15-30% traffic-drop metrics](https://umesh-malik.com/blog/traffic-anomaly-or-outage-baseline-method-cover.png) Web Engineering • Aug 19, 2026 ### Traffic Anomaly or Outage? What a 30% Drop Actually Means A 15-30% traffic anomaly or outage? Cloudflare's eclipse analysis shows the fix: five-minute buckets against a three-week matched baseline. 7 min read Read more →](https://umesh-malik.com/blog/traffic-anomaly-or-outage-baseline-method) [![The five feature-flagged phases of a zero-downtime datastore migration, from dual writes through shadow reads to cutover](https://umesh-malik.com/blog/zero-downtime-database-migration-dual-writes-cover.png) Web Engineering • Aug 16, 2026 ### Zero downtime database migration: 5 flags and a 17x P90 gap A zero downtime database migration is five feature-flagged phases, not a cutover. P95 said 4x slower, P90 said 17x, and the comparison code took a region down. 12 min read Read more →](https://umesh-malik.com/blog/zero-downtime-database-migration-dual-writes) [![Diagram of a Workers AI request routed through AI Gateway, showing the payload log, token count and cost attribution captured at the gateway hop](https://umesh-malik.com/blog/ai-gateway-for-workers-ai-cover.png) AI Engineering • Aug 7, 2026 ### Set up AI Gateway for Workers AI: one argument, every call logged AI Gateway for Workers AI is now one argument on env.AI.run. What it logs instantly, why caching stays off until you ask, and the 60-second TTL floor. 10 min read Read more →](https://umesh-malik.com/blog/ai-gateway-for-workers-ai) [![Diagram contrasting a sequential agent loop of ten model round trips with a two-level dependency graph running nine tool calls concurrently](https://umesh-malik.com/blog/parallel-agent-tool-calls-dag-harness-cover.png) AI Engineering • Aug 6, 2026 ### Run agent tool calls in parallel: 10 turns become 2 DAG levels Run agent tool calls in parallel by swapping the loop for a DAG planner: ten round trips become two levels, plus the cap, budget and critic on top. 10 min read Read more →](https://umesh-malik.com/blog/parallel-agent-tool-calls-dag-harness) [![Cover card titled The Gate, subtitled Thousands of tickets. One agent., with three statistics: 4 risk tiers, Cloudflare's MCP portal growing 13 to 27 servers, and tool annotations marked untrusted per the MCP spec](https://umesh-malik.com/blog/secure-mcp-write-tools-writeguard-cover.png) AI Security • Aug 5, 2026 ### How to Secure MCP Write Tools: Cloudflare's WriteGuard Lesson How to secure MCP write tools: the spec puts confirmation on the client — the one layer you don't control. Cloudflare's WriteGuard moves the gate server-side. 11 min read Read more →](https://umesh-malik.com/blog/secure-mcp-write-tools-writeguard) [![Production-grade AI agents — the funnel from 353,000 course registrations down to 6,000 shipped agent projects](https://umesh-malik.com/blog/production-grade-ai-agents-vibe-to-live-gap-cover.png) AI Engineering • Aug 4, 2026 ### Production-Grade AI Agents: The Vibe-to-Live Gap Production-grade AI agents need more than a working demo. 353,000 signed up to learn agents; 6,000 shipped a capstone. Here's exactly what closes the gap. 11 min read Read more →](https://umesh-malik.com/blog/production-grade-ai-agents-vibe-to-live-gap)