{"type":"post","id":"phosphor-coding-agent-v0-7-0-adds-kernel-048069","slug":"phosphor-coding-agent-v0-7-0-adds-kernel-048069","title":"Phosphor coding agent v0.7.0 adds kernel-enforced OS sandboxing on Linux, macOS and Windows","description":"Phosphor v0.7.0 adds kernel-enforced sandboxes for agent-run bash commands and MCP stdio servers on Linux, macOS, and Windows.","retrieval_nugget":"Phosphor v0.7.0 adds kernel-enforced sandboxes for agent-run bash commands and MCP stdio servers on Linux, macOS, and Windows. The release matters to teams assessing coding-agent security because it layers operating-system controls, resource caps, and user-gated escalation beneath the agent’s tool interface.","published_at":"2026-11-01","updated_at":"2026-11-01","record_date":"2026-11-01","date_kind":"published_at","topics":["mcp","agent-security","coding-agents"],"entities":["Phosphor","MCP"],"related_patterns":["agent-security-moves-to-runtime-boundaries"],"novelty_label":"new_fact","what_changed":"Phosphor v0.7.0 adds kernel-enforced sandboxing for agent commands across Linux, macOS and Windows, extending prior coverage of agent sandboxing and Codex's Windows sandbox.","prior_refs":["memory:e6ed8e7c-4362-883d-a751-6ca33a2b9cf5","memory:a564ba60-25e5-8d54-aa14-8c482732b5cb","memory:92ddb7b7-f0f4-82e1-a72f-52f2a8c5d973","memory:ce5d0d5c-9645-827f-a4ff-8d314184270a"],"source_url":"https://github.com/hackafterdark/phosphor/releases/tag/v0.7.0","source_urls":["https://github.com/hackafterdark/phosphor/releases/tag/v0.7.0"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:phosphor-coding-agent-v0-7-0-adds-kernel-048069","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/phosphor-coding-agent-v0-7-0-adds-kernel-048069/","markdown":"https://newruntime.com/posts/phosphor-coding-agent-v0-7-0-adds-kernel-048069.md","json":"https://newruntime.com/posts/phosphor-coding-agent-v0-7-0-adds-kernel-048069.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":"topic","path":"/topics/agent-security/","url":"https://newruntime.com/topics/agent-security/","title":"Agent Security","reason":"Explore the agent-security topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/agent-security.md","json_url":"https://newruntime.com/topics/agent-security.json"},{"type":"topic","path":"/topics/coding-agents/","url":"https://newruntime.com/topics/coding-agents/","title":"Coding Agents","reason":"Explore the coding-agents topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/coding-agents.md","json_url":"https://newruntime.com/topics/coding-agents.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"}]}