Context Agent Sandboxes vs Firejail

Context Agent Sandboxes gives each agent task a separate sandbox on the customer's cluster, using the permissions of the person who requested it. Each run begins in a fresh environment, which is destroyed after an idle period set to 30 minutes by default. Sandboxes run as non-root container pods with capabilities dropped, a seccomp profile, and no cluster service-account token. Administrators can choose open, domain-allowlist, or workspace-only network access, with allowlist decisions logged. In the supervised preset, commands require human approval and connections outside the allowlist prompt for a decision. Drive is not mounted: files pass through a permission-checking gateway, and outputs are pushed explicitly. Credentials are injected at the edge only after authorization. An append-only audit log records commands, files, connections, and permission decisions, including the actor and decision maker. Context lists more than 180 integrations across business categories, plus remote MCP servers. Enterprise sandboxes run on the customer's Kubernetes cluster, with KOTS installation options for EKS or AKS and an air-gapped bundle. Plans include Free at free, Plus at $20 a month, Pro at $200 a month, and custom-priced Enterprise.

Firejail is a free, self-hosted Linux sandboxing program for restricting untrusted applications, servers, graphical programs, and login sessions. It uses Linux namespaces and seccomp-bpf so sandboxed processes receive private views of network, process, and mount tables. The software runs on Linux computers with a 3.x kernel or newer. Security controls include protocol filtering, noroot user namespaces, Linux capabilities, D-BUS filtering, and optional AppArmor or SELinux support. Mandatory Access Control can block more than 1,000 desktop applications from passwords, encryption keys, and private data, with more than 1,000 profiles available in /etc/firejail. Firejail can create an isolated TCP/IP stack with routing, firewall, and interfaces, and nettrace can inspect traffic. AppImage packages are supported. Firetools adds a Qt5 graphical launcher, tray integration, editing, management, and statistics; FDNS provides DNS-over-HTTPS through non-logging providers. Running sudo firecfg integrates application menus and file-manager launches. The project targets home users and Linux beginners rather than enterprise customers.