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k.denisov 64c222a084 opencode-sandbox: OpenCode 2 in a sandbox for any project
Runs OpenCode 2 with full permissions while containing its mistakes:

- egress filter: squid in a container per project; squid.conf is rendered
  from layered egress.conf files (package, user, project, local) with
  allow/block/connect rules and expect-pass/expect-block self-tests
- netlock: nftables rejects direct egress for the opencode-sandbox group
  (installed once with sudo as a systemd unit)
- bubblewrap: read-only host, writable project, worktrees and state;
  credentials hidden; ssh keys via the host's ssh-agent; session bus
  replaced by an xdg-dbus-proxy limited to notifications; no permission
  prompts (sudo and systemd-run denied); refuses to run unsandboxed
- per-project state in ~/.local/share/opencode-sandbox/<name>
- worktrees: `wt add|rm|list` with project hooks
- skills mounted per project; the opencode-sandbox skill explains the
  environment to the agent
- plugins as submodules: context-panel, skill-compact-resurrect;
  global config adds opencode-notifier and cc-safety-net
- README in English and Russian
2026-10-30 01:00:02 -07:00

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// Global OpenCode 2 config used by opencode-sandbox for every project. Override it with
// ~/.config/opencode-sandbox/opencode.jsonc or OCSB_OPENCODE_CONFIG. Project settings
// (model, MCP servers, project plugins) stay in the project's opencode.jsonc.
{
"$schema": "https://opencode.ai/config.json",
"share": "disabled",
"update": "disable",
// Plugin lists from the global and project configs are merged. Versions are pinned: a
// plugin is code inside the OpenCode process with all of its rights.
"plugins": [
// desktop notifications (in the sandbox: through a D-Bus proxy limited to notifications)
"@mohak34/opencode-notifier@1.1.0",
// parses commands before tools run and blocks destructive ones (git reset --hard,
// clean -f, checkout --, branch -D, rm -rf on dangerous paths, curl | bash) and secret
// access (~/.ssh, .env). Project exceptions: <project>/.cc-safety-net/policy.json.
// Does not inspect docker or kubectl
"cc-safety-net@2.7.0"
]
}