--- title: I kept my Semantic Kernel plugin's state in memory -- on... description: A walkthrough of building a Semantic Kernel plugin using an in-memory state example called the 'lights plugin'. The tutorial demonstrates how plugin state can... canonical: https://daily.dev/posts/i-kept-my-semantic-kernel-plugin-s-state-in-memory----on-purpose--hryomfzyd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I kept my Semantic Kernel plugin's state in memory -- on purpose. | daily.dev og:description: A walkthrough of building a Semantic Kernel plugin using an in-memory state example called the 'lights plugin'. The tutorial demonstrates how plugin state can... og:url: https://daily.dev/posts/i-kept-my-semantic-kernel-plugin-s-state-in-memory----on-purpose--hryomfzyd og:image: https://api.daily.dev/og/posts/HRyOmfZYD.png og:image:alt: I kept my Semantic Kernel plugin's state in memory -- on purpose. 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. # I kept my Semantic Kernel plugin's state in memory -- on purpose. **[We Are .NET](https://daily.dev/sources/wearedotnet)** · 1 min read · 1 upvotes · 0 comments ## Summary A walkthrough of building a Semantic Kernel plugin using an in-memory state example called the 'lights plugin'. The tutorial demonstrates how plugin state can be stored in memory for simplicity, while noting that real-world implementations could persist state in a database, file, or external service. The example is borrowed from Microsoft's documentation and serves as a foundation for building more complex plugins. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#semantic-kernel](https://daily.dev/tags/semantic-kernel) [View this post on daily.dev](https://daily.dev/posts/i-kept-my-semantic-kernel-plugin-s-state-in-memory----on-purpose--hryomfzyd) ```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":"I kept my Semantic Kernel plugin's state in memory -- on purpose.","url":"https://daily.dev/posts/i-kept-my-semantic-kernel-plugin-s-state-in-memory----on-purpose--hryomfzyd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/i-kept-my-semantic-kernel-plugin-s-state-in-memory----on-purpose--hryomfzyd"},"datePublished":"2026-08-03T17:49:12.830Z","dateModified":"2026-09-14T06:52:36.506Z","description":"A walkthrough of building a Semantic Kernel plugin using an in-memory state example called the 'lights plugin'. 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