--- title: Building Agent Interfaces: Lessons from Chrome DevTools... description: Michael Hablich, Chrome DevTools PM at Google, shares four engineering lessons from building Chrome DevTools for AI agents via MCP. Key insights include:... canonical: https://daily.dev/posts/building-agent-interfaces-lessons-from-chrome-devtools-mcp-for-agents-michael-hablich-google-v9gqworuu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building Agent Interfaces: Lessons from Chrome DevTools (MCP) for Agents — Michael Hablich, Google | daily.dev og:description: Michael Hablich, Chrome DevTools PM at Google, shares four engineering lessons from building Chrome DevTools for AI agents via MCP. Key insights include:... og:url: https://daily.dev/posts/building-agent-interfaces-lessons-from-chrome-devtools-mcp-for-agents-michael-hablich-google-v9gqworuu og:image: https://api.daily.dev/og/posts/V9GQWOruu.png og:image:alt: Building Agent Interfaces: Lessons from Chrome DevTools (MCP) for Agents — Michael Hablich, Google 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. # Building Agent Interfaces: Lessons from Chrome DevTools (MCP) for Agents — Michael Hablich, Google **[AI Engineer](https://daily.dev/sources/aidotengineer)** · 22 min read · 1 upvotes · 0 comments ## Summary Michael Hablich, Chrome DevTools PM at Google, shares four engineering lessons from building Chrome DevTools for AI agents via MCP. Key insights include: treating agents as a distinct user class with different cognitive bottlenecks than humans; measuring interface efficiency using 'tokens per successful outcome'; returning semantic summaries instead of raw data to avoid blowing context windows; decomposing monolithic tools into granular ones with clear descriptions; implementing error recovery playbooks and proactive detours for agent self-healing; and maintaining deliberate trust boundaries (friction by design) to prevent prompt injection and unauthorized access across three tiers of agent deployment environments. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Chrome DevTools for agents](https://daily.dev/posts/chrome-devtools-for-agents-i2pxfjajj) · iO tech\_hub · 1 upvotes · 0 comments - [Designing APIs for agents](https://daily.dev/posts/designing-apis-for-agents-j6erh0xjr) · The New Stack · 4 upvotes · 0 comments - [A developer toolkit to make your website agent-ready](https://daily.dev/posts/a-developer-toolkit-to-make-your-website-agent-ready-x7gbgaq8w) · Chrome Developers · 10 upvotes · 0 comments --- Tags: [#automation](https://daily.dev/tags/automation), [#ai-agents](https://daily.dev/tags/ai-agents), [#google-chrome](https://daily.dev/tags/google-chrome), [#mcp](https://daily.dev/tags/mcp), [#prompt-engineering](https://daily.dev/tags/prompt-engineering) [View this post on daily.dev](https://daily.dev/posts/building-agent-interfaces-lessons-from-chrome-devtools-mcp-for-agents-michael-hablich-google-v9gqworuu) ```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":"Building Agent Interfaces: Lessons from Chrome DevTools (MCP) for Agents — Michael Hablich, Google","url":"https://daily.dev/posts/building-agent-interfaces-lessons-from-chrome-devtools-mcp-for-agents-michael-hablich-google-v9gqworuu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-agent-interfaces-lessons-from-chrome-devtools-mcp-for-agents-michael-hablich-google-v9gqworuu"},"datePublished":"2026-06-05T17:26:47.764Z","dateModified":"2026-06-07T17:44:58.978Z","description":"Michael Hablich, Chrome DevTools PM at Google, shares four engineering lessons from building Chrome DevTools for AI agents via MCP. 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