Module panel 

Wire protocol + on-disk session records for the murmur Panel (companion window). Shared by the murmur TUI (socket server side) and mur-gui-core::panel_bridge (Hub client side). One JSON object per line. Design: docs/superpowers/specs/2026-07-05-murmur-panel-companion-design.md

Structs

PanelSession

On-disk session record (<pid>.json) and Hello payload.

Enums

HubFrame

Hub → murmur frames. Insert-only by design: nothing here may ever execute — Insert fills the input box and the user presses Enter (fail-closed; see spec security section).

PanelFrame

murmur → Hub frames.

PanelTab

PreviewKind

Constants

PANEL_PROTO_VERSION

Functions

decode_line

Tolerant single-line decode: unknown/malformed frames are None (forward compatibility across proto versions).

murmur_run_dir

Directory holding one <pid>.json + <pid>.sock per live murmur session. Under the existing ~/.mur/runtime convention (see media::runtime_dir).