--- title: Vibing, Harness and OODA loop | daily.dev description: Vibe coding and LLM-assisted development are not new phenomena — they mirror the old 'weekend PoC' problem where skipping Observe and Orient phases creates an... canonical: https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Vibing, Harness and OODA loop | daily.dev og:description: Vibe coding and LLM-assisted development are not new phenomena — they mirror the old 'weekend PoC' problem where skipping Observe and Orient phases creates an... og:url: https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc og:image: https://api.daily.dev/og/posts/fLVUSMhCC.png og:image:alt: Vibing, Harness and OODA loop og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Vibing, Harness and OODA loop **[Architecture Weekly](https://daily.dev/sources/architectureweekly)** · 15 min read · 9 upvotes · 0 comments ## Summary Vibe coding and LLM-assisted development are not new phenomena — they mirror the old 'weekend PoC' problem where skipping Observe and Orient phases creates an illusion of speed. Using the OODA loop (Observe, Orient, Decide, Act) as a framework, the author argues that LLMs accelerate the Act phase but do nothing to speed up Observation, which still requires a proper test harness. A practical example is shown: adding OpenTelemetry observability to the Emmett framework, using Node.js native test tools, execa, and Docker Compose to build a reproducible, automated verification harness. The core message is that fast iteration only works sustainably when paired with automated feedback mechanisms — without a harness, you're just generating unverified output faster. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The Learning Loop and LLMs](https://daily.dev/posts/the-learning-loop-and-llms-xkzpoxtv0) · Martin Fowler · 1 upvotes · 0 comments - [Agentic AI’s OODA Loop Problem](https://daily.dev/posts/agentic-ai-s-ooda-loop-problem-xhwme20ql) · Security Boulevard · 1 upvotes · 0 comments --- Tags: [#testing](https://daily.dev/tags/testing), [#opentelemetry](https://daily.dev/tags/opentelemetry), [#vibe-coding](https://daily.dev/tags/vibe-coding) [View this post on daily.dev](https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Vibing, Harness and OODA loop","url":"https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc"},"datePublished":"2026-04-27T05:33:33.352Z","dateModified":"2026-04-27T05:33:56.851Z","description":"Vibe coding and LLM-assisted development are not new phenomena — they mirror the old 'weekend PoC' problem where skipping Observe and Orient phases creates an...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7a244819bcc16bcedff019520aceabff?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7a244819bcc16bcedff019520aceabff?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Architecture Weekly","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Architecture Weekly","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/de7f791943f4475191187c902742d2f7","url":"https://daily.dev/sources/architectureweekly"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/vibing-harness-and-ooda-loop-flvusmhcc","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":9},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"testing,opentelemetry,vibe-coding","timeRequired":"PT15M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Architecture Weekly","item":"https://daily.dev/sources/architectureweekly"},{"@type":"ListItem","position":3,"name":"Vibing, Harness and OODA loop"}]} ```