--- title: Inside The Agent Loop with Pierce Boggan | daily.dev description: A deep-dive podcast conversation between VS Code team members explaining how the GitHub Copilot agent loop works internally. Topics covered include how system... canonical: https://daily.dev/posts/inside-the-agent-loop-with-pierce-boggan-l9f1sux9h twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Inside The Agent Loop with Pierce Boggan | daily.dev og:description: A deep-dive podcast conversation between VS Code team members explaining how the GitHub Copilot agent loop works internally. Topics covered include how system... og:url: https://daily.dev/posts/inside-the-agent-loop-with-pierce-boggan-l9f1sux9h og:image: https://api.daily.dev/og/posts/l9F1sUx9h.png og:image:alt: Inside The Agent Loop with Pierce Boggan 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. # Inside The Agent Loop with Pierce Boggan **[Visual Studio Code](https://daily.dev/sources/vscode)** · 33 min read · 0 upvotes · 0 comments ## Summary A deep-dive podcast conversation between VS Code team members explaining how the GitHub Copilot agent loop works internally. Topics covered include how system prompts are dynamically built per model, how tools are selected by the model, how sub-agents work (including the explore sub-agent that uses Haiku instead of Opus for faster context gathering), how VS Code optimizes agent trajectories using their own SWE-bench equivalent, and the tradeoffs between putting context in prompts versus using tools. The discussion also covers how users can customize or disable sub-agent behavior, inspect agent debug logs, and build their own custom agent modes in VS Code. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#github](https://daily.dev/tags/github), [#llm](https://daily.dev/tags/llm), [#ai-agents](https://daily.dev/tags/ai-agents), [#vscode](https://daily.dev/tags/vscode), [#mcp](https://daily.dev/tags/mcp) [View this post on daily.dev](https://daily.dev/posts/inside-the-agent-loop-with-pierce-boggan-l9f1sux9h) ```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":"Inside The Agent Loop with Pierce Boggan","url":"https://daily.dev/posts/inside-the-agent-loop-with-pierce-boggan-l9f1sux9h","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/inside-the-agent-loop-with-pierce-boggan-l9f1sux9h"},"datePublished":"2026-04-20T07:04:20.339Z","dateModified":"2026-04-20T07:04:42.380Z","description":"A deep-dive podcast conversation between VS Code team members explaining how the GitHub Copilot agent loop works internally. 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