chrome-devtools-mcp v1.8.0 Gives Agents Queryable Heap Snapshots and PWA Automation
GitHub·medium signal
The 2026-08-25 release adds a query_heapsnapshot MCP tool, self and retained sizes on heap edges, and a get_heapsnapshot_summary that reports memory kept alive by contexts, which turns memory-leak hunting into something an agent can iterate on rather than a human reading a DevTools panel. It also adds PWA automation tools, optional stack traces on list_console_messages, multi-file upload_file, and an evaluate_script flag to skip the stable-DOM wait. Breaking change: pageId is now required by default on page-scoped tools.