Manages sandbox lifecycle for Open-Inspect sessions. Responsibilities: - Create sandboxes from snapshots or fresh images - Take snap

Configuration for creating a sandbox.

Mock HTTP response for testing.

Bridge between sandbox OpenCode instance and control plane. Handles: - WebSocket connection management with reconnection - Heartbeat

Supervisor process for sandbox lifecycle management. Manages: - Git synchronization with base branch - OpenCode server process -

Formats log records as single-line JSON with envelope fields.

Git user configuration for commit attribution.

Handle to a sandbox.

Mock HTTP client that uses delayed/hanging SSE responses.

Mock SSE streaming response.

Raised when a build sandbox fails.

Mock SSE response with configurable delays between chunks.

Authenticated callback reporter for image build mode.

Configuration passed to sandbox for a session.

Raised when the control plane has terminated the session (HTTP 410). This is a non-recoverable error - the bridge should exit gracefully rath

Proxy stdio calls to streams registered by the current thread.

Raised when SSE connection fails.

Thin wrapper over logging.Logger providing a clean structured API. Uses standard logging infrastructure underneath -- all output goes through

Raised when authentication is not properly configured.

Configuration needed by bootstrap.py.

Mock SSE response that hangs forever after initial events.

Mock HTTP client for stop tests.

Mock HTTP client for event buffer tests.

Mock HTTP client that supports both regular requests and SSE streaming.

Mock SSE streaming response.

Mock SSE streaming response.