id: Phase 13 F13.2 SSH as a transport for the frame protocol (id world join --via ssh) #784

What and why

Run the ClientFrame/ServerFrame JSON protocol over an SSH exec channel so constrained networks and jump hosts can reach a world (id world join --via ssh). Today SSH is only a presentation adapter and exec requests are refused (pkgs/id/src/world_ssh.rs:252); the CLI's WorldClient speaks iroh only (pkgs/id/src/world_net.rs:157).

Source

• Phase 13 plan — F13.2
• id: write the Phase 13 plan: client shells and client capability providers #564 (Phase 13 plan task)
• id(transport): transport designs #536 (transport designs) — D1-050

Current status

Not started. grep -rn '\-\-via' pkgs/id/src/cli.rs finds no flag; exec_request is refused.

Acceptance criteria

• id world join --via ssh replays the same session as the iroh path, byte-for-byte frames, over an exec channel
• A test unwraps both envelopes (SSH channel and iroh QUIC stream) to identical frames
• The frame transport does not touch the journal (frames are ephemeral; the journal is the durable record)

Size

L

Prerequisites

• id: write the Phase 13 plan: client shells and client capability providers #564 (Phase 13 plan task) — F13.1 shell contract (the protocol this transports)