dsh-timer-scheduler-ui

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A DeepSeek Harness (DSH) plugin: an agent self-scheduler that wakes the agent at a future time to autonomously check on background jobs, remote tasks, or anything that needs a "come back later" look — without a human having to prompt it — plus a bottom-right reminder panel in the web UI.

Features

• schedule_reminder — schedule a one-shot reminder, relative (delay_seconds) or absolute (at: ISO 8601 / HH:MM[:SS]).
• list_reminders — list pending reminders.
• cancel_reminder — cancel a reminder by id.
• Auto-wake — on fire, the agent is woken through agent.followup() with a new turn; it acts and reports on its own, no human wake-up needed.
• Persistence — pending reminders are serialized to $DSH_HOME/timer-reminders.json and re-armed on restart.
• Bottom-right panel (client half) — per-reminder note + live countdown, theme-aware via --dsw-alias-* tokens, hidden when empty, never covering the send button.

Structure

One package, two halves, in the standard dsh.client + dsh.bundle.patch shape. Everything is host-plane: composing this bundle into the web profile's host composition makes the model tools available to every agent regardless of preset, and the route serves the browser panel.

Preset adaptation: the anchored-standard preset keeps these tools resident for its agents via its residentTools option; every other preset works without any configuration.

Installation

Not published to npm yet. Install from source:

> Host-plane tools: once this bundle is composed, every agent on any preset can call schedule_reminder / list_reminders / cancel_reminder. If a preset uses an aggressive tool-bootstrap filter (like anchored-standard), keep the three tool names resident so its agents still see them: > > ``yaml > # inside the tool-bootstrap row's config > residentTools: [schedule_reminder, list_reminders, cancel_reminder] > ``

1. Place this directory in the web profile workspace and mount it as a dependency + bundle in the profile's package.json:

``json { "dependencies": { "dsh-timer-scheduler-ui": "file:./packages/dsh-timer-scheduler-ui" }, "dsh": { "profile": { "bundles": [ "@deepseek-ai/dsh-base", "@deepseek-ai/dsh-web-app", "dsh-timer-scheduler-ui" ] } } } ``

2. Install and restart:

``sh cd <web-profile> pnpm install # restart dsh web (the Host half runs in the server process), then hard-refresh ``

3. Verify:

``sh curl 'http://127.0.0.1:<port>/api/timer-reminders?sessionId=x' # → {"reminders":[]} curl 'http://127.0.0.1:<port>/plugins/dsh-timer-scheduler-ui/client.js' # → 200 JS ``

Once published to npm: dsh plugin --profile web add dsh-timer-scheduler-ui.

Usage

In an agent session, just say:

• "Remind me in 30 minutes to check that background job" → schedule_reminder(delay_seconds=1800, note=…)
• "Check the deployment at 3pm" → schedule_reminder(at="15:00", note=…)
• Manage with list_reminders / cancel_reminder.

The bottom-right panel shows the countdown while reminders are pending and hides when empty.

How it works

1. The agent calls schedule_reminder; the host plugin arms a one-shot Cordis timer and writes {id, note, dueMs, sessionId} to ~/.dsh/timer-reminders.json. 2. On fire, the host plugin resolves the agent via agents.get(sessionId), builds a source.kind = 'plugin' user message, and delivers it through agent.followup() to wake the driver. 3. This package's client half fetches /api/timer-reminders?sessionId=… every second and renders the countdown from that same file.

Known limitations

• On fire, the owning session must be live (process running, session open). A cold session is skipped with a warning — cold-resume is out of scope for now.
• Delays beyond ~24.8 days are chunked, so they work, but the mechanism is "in-process timer + disk snapshot"; the timer only needs the process to stay up to fire.

License

[MIT](LICENSE)