hosted-agents

# Hosted Agent Infrastructure Hosted agents run in remote sandboxed environments rather than on local machines. When designed well, they provide unlimited concurrency, consistent execution environments, and multiplayer collaboration. The critical insight is that session speed should be limited only by model provider time-to-first-token, with all infrastructure setup completed before the user starts their session. > **Local safety overlay:** bundled Python and shell fragments are architectural > examples, not trusted entry points. Do not execute them automatically. Use > argv-based subprocess APIs, keep credentials out of clone URLs and process > listings, validate repository/identity inputs, and preserve human approval for > pushes, deployments, credentials, and destructive lifecycle operations. ## When to Activate Activate this skill when: - Building background coding agents that run independently of user devices - Designing sandboxed execution environments for agent workloads - Implementing multiplayer agent sessions with shared state - Creating multi-client agent interfaces (Slack, Web, Chrome extensions) - Scaling agent infrastructure beyond local machine constraints - Building systems where agents spawn sub-agents for parallel work Do not activate this skill for adjacent work owned by other skills: - Designing the autonomous research loop, novelty gates, rollback policy, or merge boundaries: `harness-engineering`. - Choosing supervisor, swarm, or handoff topology wi...