dsh-session-bridge

dsh-session-bridge

Session-level multi-thread orchestration for DeepSeek Harness. Installs as a bundle in a profile and registers globally — every session can use the tools regardless of agent preset.

Tools

Tool · Purpose session_create · Create an ordinary session in the caller's workspace (optional initial prompt); returns the session id. The child binds to the caller's standing composition via composeFrom — never re-mounts another preset. session_send · Deliver a prompt to any ordinary session by id. queue = next-turn FIFO (busy targets finish their turn first); interrupt = insert at the next step boundary. Cold sessions resume automatically with their recorded preset mounted. Subagent sessions are refused. session_list · Enumerate ordinary sessions (id, title, cwd, running); optional workspace filter.

Install

From the Git repository (recommended):

dsh plugin --profile web add https://github.com/FuWenLianggit/dsh-session-bridge

Or from a local checkout:

dsh plugin --profile web add <path-to-this-checkout>

Restart the profile (or the desktop app) and hard-refresh the browser. Uninstall with dsh plugin --profile web remove dsh-session-bridge.

Runtime compatibility

The plugin reads every service structurally through ctx.get, so one build serves both DSH lines:

• 0.2.x (incl. DSH Desktop 0.2.0-rc.2) — sessionPersistence.list() returns

detached snapshots ({ header, revision, sizeBytes }); session_list and cold-session session_send read snapshot.header.

• 0.1.7-rc.1 and later 0.1.x — the same listing returned bare

SessionHeader rows; the normalization in headerOf() still accepts them.

Cold resume mounts header.agentPreset through agentPresets.mount() inside the setup callback. Without that, agents.resume() restores history but leaves the agent without the preset's tools and prompt.

Notes

• Send/creation use the harness's built-in session/agent services; the plugin

only wraps them into model-facing tools.

• Cross-session messages are recorded with source: { kind: 'session-bridge' }.

DSH 0.2 removed the shared kind: 'plugin' source kind (each producer declares its own), and every consumer falls through an unknown kind to its generic rendering.

• Only ordinary sessions are addressable; subagent-owned sessions keep the

subagent routing fence.