Kilo Code CLI vs OpenCode

Kilo Code CLI

Shell commands ask before running by default, and an optional operating-system sandbox blocks writes outside the workspace and outbound network. Telemetry to PostHog is on by default and the sandbox is off, so an unattended kilo run --auto approves everything not denied unless both are configured first.

OpenCode

Runs with no key or account on free OpenCode Zen models. Most permissions default to allow, and SECURITY.md says the permission system is not a sandbox.

Kilo Code CLI

1. Set sandbox.enabled to true in the global kilo.jsonc before kilo run --auto. --auto approves every permission request not explicitly denied
2. Set experimental.openTelemetry to false, or KILO_TELEMETRY_LEVEL to a value other than all, to stop telemetry
3. Add needed hosts to sandbox.allowed_hosts in global config. MCP tool calls are unavailable while network restriction is on
4. Without --auto a non-interactive run rejects every permission prompt and exits 1
5. Put provider keys in global config or the environment. {env:VAR} in a project kilo.json is ignored

OpenCode

1. Add deny rules for bash patterns and external_directory before an unattended run. Most tools default to allow
2. Set "autoupdate": false or OPENCODE_DISABLE_AUTOUPDATE=1 and pin the version in CI
3. Configure a provider key. With none, prompts go to free Zen models that may train on them
4. Set OPENCODE_SERVER_PASSWORD before opencode serve. Without it the server runs unauthenticated
5. Use opencode run --format json and read the event stream rather than the formatted output