fountunt/dsh-session-cleaner

dsh-session-cleaner

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Delete DeepSeek Harness sessions from a running web runtime — files, live store, and workspace records — without restarting dsh web.

The official web API only offers workspace.archiveSession (hide); there is no session.delete. This bundle closes that gap.

Install

dsh plugin --profile web add dsh-session-cleaner            # from npm
dsh plugin --profile web add github:fountunt/dsh-session-cleaner   # from git

# or from a local checkout
dsh plugin --profile web add file:/path/to/dsh-session-cleaner

Then restart dsh web (a running instance does not hot-load new bundles).

Usage

Web UI (v1.0.0)

The client half adds a 🗑 "Delete session" item at the bottom of the sidebar session row ⋮ menu — the item is skipped when the row title is ambiguous (duplicate titles).

Click, confirm, and the session is deleted and the sidebar refreshes. The item is disabled (greyed) while the session is running; sessions opened in the UI (idle agents) are stopped first, then deleted. The current running conversation can never be deleted.

API

The plugin registers one route on the web server:

POST /api-ext/session.delete
Content-Type: application/json

{ "sessionId": "session-1bb8d361-ea6b-4b92-bab2-c858c92e8822" }

Same-origin calls work from the browser console of the harness page:

await fetch("/api-ext/session.delete", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({ sessionId: "session-1bb8d361-ea6b-4b92-bab2-c858c92e8822" }),
}).then(r => r.json());

Response envelope (mirrors the host's RPC style):

{ "ok": true, "value": { "detached": true, "workspaces": 1, "files": 1 } }
{ "ok": false, "error": { "code": "refused", "message": "..." } }

• detached — the session was removed from the in-memory live store (this is what makes it disappear from the sidebar immediately, without a restart).
• workspaces — how many workspace records the session was detached from.
• files — how many on-disk artifact directories were removed.

Safety

• Sessions with an attached agent (running or idle) are refused — the current conversation can never be deleted through this endpoint.
• Deletion is irreversible: artifacts, workspace membership, and the live entry are all removed. The session-projection cache may keep a harmless stale row until the next restart.