Distillation

Date: Sep 8, 2026

• 🟡 (04:22) Supervisor architecture decision: use systemd 255’s existing StartTransientUnit D-Bus Unix-FD support to pass one duplex I/O socket and the approved cwd descriptor, avoiding a custom FD transport.
• 🟡 (04:23) Added Go supervisor module file ../../.local/share/opencode-v2-pilot/supervisor/go.mod.
• 🟡 (04:23) Added framing implementation and tests at ../../.local/share/opencode-v2-pilot/supervisor/internal/protocol/frame.go and ../../.local/share/opencode-v2-pilot/supervisor/internal/protocol/frame_test.go.
• 🟡 (04:23) Added launcher implementation and tests at ../../.local/share/opencode-v2-pilot/supervisor/cmd/launcher/main.go and ../../.local/share/opencode-v2-pilot/supervisor/cmd/launcher/main_test.go.
• 🟡 (04:23) Go tooling failed with doc: missing go.sum entry for module providing package golang.org/x/sys/unix.SO_PEERPIDFD; to add: go mod download golang.org/x/sys and exited with status 1.
• 🟡 (04:23) Go package inspection confirmed golang.org/x/sys/unix defines SO_PEERPIDFD = 0x4d, alongside SO_PASSPIDFD = 0x4c and SO_PEERCRED = 0x11.
• 🟡 (04:23) github.com/coreos/go-systemd/v22/dbus exposes (*Conn).StartTransientUnitContext(ctx context.Context, name string, mode string, properties []Property, ch chan<- string) (int, error) for creating and starting transient units and (*Conn).GetUnitPropertiesContext(ctx context.Context, unit string) (map[string]interface{}, error) for retrieving unit properties.