--- title: Build a Multi-Agent Analysis System with GitHub Copilot... description: A step-by-step guide to building a multi-agent code analysis system using the GitHub Copilot SDK in C#. The system runs three specialist agents (Code Review,... canonical: https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Build a Multi-Agent Analysis System with GitHub Copilot SDK in C# | daily.dev og:description: A step-by-step guide to building a multi-agent code analysis system using the GitHub Copilot SDK in C#. The system runs three specialist agents (Code Review,... og:url: https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr og:image: https://api.daily.dev/og/posts/oPKH2fovR.png og:image:alt: Build a Multi-Agent Analysis System with GitHub Copilot SDK in C# 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. # Build a Multi-Agent Analysis System with GitHub Copilot SDK in C# **[We Are .NET](https://daily.dev/sources/wearedotnet)** · 15 min read · 1 upvotes · 0 comments ## Summary A step-by-step guide to building a multi-agent code analysis system using the GitHub Copilot SDK in C#. The system runs three specialist agents (Code Review, Documentation, Testing) sequentially against a C# source file and assembles their outputs into a unified markdown report. Key patterns covered include the AgentBase abstract class that encapsulates all SDK ceremony, SystemMessageMode.Replace for clean agent isolation, the AgentPipeline orchestrator for sequential execution, and the TaskCompletionSource+SessionIdleEvent synchronization mechanism. The article also explains why sequential execution is preferred over parallel for this use case, covering rate limiting, error recovery, and undocumented SDK concurrency behavior. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Building Better Apps with GitHub Copilot Custom Agents](https://daily.dev/posts/building-better-apps-with-github-copilot-custom-agents-nkclgrhjt) · James Montemagno · 2 upvotes · 0 comments - [GitHub Copilot CLI for .NET Developers: Real Workflows on a C\# Codebase](https://daily.dev/posts/github-copilot-cli-for-net-developers-real-workflows-on-a-c-codebase-eyicrg3rl) · We Are .NET · 3 upvotes · 0 comments - [Doing More with GitHub Copilot as a .NET Developer](https://daily.dev/posts/doing-more-with-github-copilot-as-a-net-developer-dektd3qud) · ASP.NET Blog · 34 upvotes · 4 comments --- Tags: [#.net](https://daily.dev/tags/.net), [#ai-agents](https://daily.dev/tags/ai-agents), [#c#](https://daily.dev/tags/c#) [View this post on daily.dev](https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr) ```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":"Build a Multi-Agent Analysis System with GitHub Copilot SDK in C#","url":"https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr"},"datePublished":"2026-03-31T22:32:35.636Z","dateModified":"2026-03-31T22:33:04.320Z","description":"A step-by-step guide to building a multi-agent code analysis system using the GitHub Copilot SDK in C#. The system runs three specialist agents (Code Review,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/84c8f55da134f97e901cd2e5e9340225?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/84c8f55da134f97e901cd2e5e9340225?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"We Are .NET","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":"We Are .NET","logo":"https://media.daily.dev/image/upload/s--BsnVOa3i--/f_auto/v1718347410/logos/wearedotnet","url":"https://daily.dev/sources/wearedotnet"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/build-a-multi-agent-analysis-system-with-github-copilot-sdk-in-c--opkh2fovr","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":".net,ai-agents,c#","timeRequired":"PT15M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"We Are .NET","item":"https://daily.dev/sources/wearedotnet"},{"@type":"ListItem","position":3,"name":"Build a Multi-Agent Analysis System with GitHub Copilot SDK in C#"}]} ```