{"type":"post","id":"vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1","slug":"vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1","title":"Vercel Sandbox commands now accept stdin, enabling stdio MCP servers inside sandboxes","description":"Vercel Sandbox now supports sending standard input to commands while they are running.","retrieval_nugget":"Vercel Sandbox now supports sending standard input to commands while they are running.","published_at":"2026-10-26","updated_at":"2026-10-26","record_date":"2026-10-26","date_kind":"published_at","topics":["mcp"],"entities":["Vercel","Vercel Sandbox","agent-browser","Model Context Protocol"],"related_patterns":["agent-protocols-become-interoperability-layer","agent-security-moves-to-runtime-boundaries"],"novelty_label":"new_fact","what_changed":"Vercel Sandbox adds stdin support for interactive commands, including stdio MCP servers, with usage details for its TypeScript and Python SDKs.","prior_refs":["memory:f4b3284b-5320-861d-ade6-a30bf5f12003","memory:67a55206-a147-8c98-ad3a-bcbb53257397","memory:86e6b9d1-bfb4-8c3a-a3a6-67c900b00b74"],"source_url":"https://vercel.com/changelog/vercel-sandbox-commands-now-support-stdin","source_urls":["https://vercel.com/changelog/vercel-sandbox-commands-now-support-stdin"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1/","markdown":"https://newruntime.com/posts/vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1.md","json":"https://newruntime.com/posts/vercel-sandbox-commands-now-accept-stdin-enabling-stdio-d16cc1.json"},"next_reads":[{"type":"topic","path":"/topics/mcp/","url":"https://newruntime.com/topics/mcp/","title":"Mcp","reason":"Explore the mcp topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/mcp.md","json_url":"https://newruntime.com/topics/mcp.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}