{"schemaVersion":"2026-07-21.signal.v2","id":"live-296fd555305a2e6cbc93","title":"Agents - New persistent browser tool in the Agents SDK, with tabs and logins that last between turns","slug":"cloudflare-agents-changelog-https-developers-cloudflare-com-changelog-post-2026-10-13--6cbc93","url":"https://www.niubiagent.com/signals/cloudflare-agents-changelog-https-developers-cloudflare-com-changelog-post-2026-10-13--6cbc93","jsonUrl":"https://www.niubiagent.com/api/posts/cloudflare-agents-changelog-https-developers-cloudflare-com-changelog-post-2026-10-13--6cbc93.json","markdownUrl":"https://www.niubiagent.com/content/cloudflare-agents-changelog-https-developers-cloudflare-com-changelog-post-2026-10-13--6cbc93","summaryHuman":"Cloudflare Agents SDK introduces a persistent browser tool that retains tabs, cookies, and login sessions across agent turns via Browser Rendering and CDP.","summaryAgent":"Cloudflare Agents SDK v0.28.0+ adds browserTool powered by browserRun , enabling agents to execute Chrome DevTools Protocol commands and preserve browser state across multiple turns.","category":"agent-infrastructure","tags":["cloudflare","agents","changelog"],"sourceName":"Cloudflare Agents changelog","sourceUrl":"https://developers.cloudflare.com/changelog/post/2026-10-13-persistent-browser/","publishedAt":"2026-10-13T00:00:00.000Z","curatedAt":"2026-10-13T12:17:47.229Z","confidence":0.9,"agentUsefulness":80,"sponsorIds":[],"language":"en","contentMode":"source-watch","verifiedAt":"2026-10-13T14:17:34.263Z","changeType":"release","actionItems":["Upgrade to Cloudflare Agents SDK v0.28.0 or later to use browserTool .","Configure a Browser instance using browserRun(this.env.BROWSER) within Durable Objects.","Register browserTool in the agent extension registry to enable CDP-based multi-turn browser execution."],"body":"The Cloudflare Agents SDK added browserTool , allowing agents to leverage a persistent Browser Run instance across turns. When configured, the browser instance maintains open tabs, cookies, and login sessions while active. Agents drive the browser by generating code executed via the Chrome DevTools Protocol (CDP). Captured screenshots are returned as images that can be analyzed by multimodal models or rendered in user interfaces. Implementation requires Agents SDK v0.28.0 or higher, instantiating Browser with the browserRun provider, tying it to the agent lifecycle, and adding browserTool to the Pi Durable extension registry.","sponsors":[]}