dsh-cross-session

In a DeepSeek Harness workflow, a session often already holds the context you need: an implementation in progress, an investigation with useful evidence, or a review that should stay separate from the main conversation. Copying that history into another chat window risks losing nuance and adds coordination overhead. dsh-cross-session lets multiple live sessions inside the same DSH process discover, message, and coordinate with each other directly, without spawning a second runtime, a daemon, or an extra network port.

The plugin exposes a set of Fleet tools: list live sessions in the current process, read a bounded summary of a target session, queue follow-up work for its next turn, steer its direction at the next step boundary, observe the complete turn that claimed a sent message, and cancel active work when explicitly enabled. All write operations go through a confirmed-targeting flow that is short-lived, caller-bound, and fail-closed, so model tools cannot silently address an arbitrary session ID.

If you run implementation, review, research, or long-running sessions in parallel within a single DSH runtime and want them to hand off context and instructions naturally instead of manual copy-paste, dsh-cross-session is the lightweight coordination layer built for that.