Composer dock monitor with 5 drag-reorderable pills (Context, Tokens, CPU, GPU, MEM): a 20x5 context brick matrix, per-turn net upload/download token bars, and 200ms native macOS Mach/IOKit scrolling charts with top-5 process lists. The native sampler is compiled on first start and needs clang (Xcode Command Line Tools); without it the charts fall back to 1-second samples.
Install
# from a prebuilt release tarball
dsh plugin --profile web add "https://github.com/Shiro-umi/dsh-system-monitor/releases/download/v0.1.0/dsh-system-monitor.tgz"
# from GitHub (first run asks for allowBuilds approval — follow the hint, retry)
dsh plugin --profile web add github:Shiro-umi/dsh-system-monitor
Any plugin you install runs third-party code with your own permissions — it can read your files, use your credentials, and reach the network, and tool approvals don’t sandbox it. GitHub-sourced plugins also run build scripts at install time — pnpm blocks those until you allow them, so an install can stop with ERR_PNPM_GIT_DEP_PREPARE_NOT_ALLOWED or ERR_PNPM_IGNORED_BUILDS; dsh prints the exact key to add under allowBuilds in your profile’s pnpm-workspace.yaml, and the install works on the next run. Allowing a build is a trust decision: only install sources you trust, and pin a commit (github:owner/repo#sha).
README
Five pills in the DeepSeek Harness composer dock. Context, tokens, and live system readings share one row. Click any pill to open its card.
English · 中文
The five pills
| Pill | Live reading | Card |
|---|---|---|
| Context | 5x3 micro grid and usage percentage | 20x5 brick matrix, system prompt / tool defs / messages split, cache hit rate |
| Tokens | Net upload and download per turn | Direction arrows, up/down ratio, up to 16 step bars, cache hit rate |
| CPU | User plus system load, with a 36 s bar chart | 60 s bar chart with peak line, user and system detail, top 5 processes |
| GPU | Device utilization, with a 36 s bar chart | 60 s bar chart with peak line, renderer and tiler detail, top 5 processes |
| MEM | Used and total, with a 36 s bar chart | 60 s bar chart with peak line, wired / compressed / floor rows, top 5 processes |
Drag any pill to reorder. The order persists in localStorage.
Cards
One card opens at a time. Click anywhere outside to dismiss.
Install
dsh plugin --profile web add github:Shiro-umi/dsh-system-monitor
Or install the release tarball:
dsh plugin --profile web add https://github.com/Shiro-umi/dsh-system-monitor/releases/latest/download/dsh-system-monitor.tgz
Link a local checkout while developing:
dsh plugin --profile web add link:/path/to/dsh-system-monitor
Restart DeepSeek Harness afterward.
Requires macOS and clang (Xcode Command Line Tools). On first start the plugin compiles sampler.c into bin/sampler. When the install directory is read-only it builds into the system temp directory instead.
Sampling
| Item | Value |
|---|---|
| Rate | One frame every 200 ms |
| CPU | Per-core tick deltas, split into user and system |
| GPU | IOAccelerator PerformanceStatistics |
| Memory | vm_statistics64, same basis as top PhysMem |
| Transport | NDJSON stream from the host |
| Idle stop | Sampler exits 5 s after the last subscriber leaves |
| Orphan guard | Sampler exits when the parent process is gone |
Fallbacks
| Condition | Behavior |
|---|---|
| clang missing | Frames built from top, ioreg, and sysctl once per second, LOW tag on the pill |
| Not macOS | Native sampler off, falls back to CPU and memory from node:os |
| Process query fails | Card shows a placeholder, metrics keep updating |
Slots
The plugin takes three entries in the composer dock. It replaces the built-in usage and activity indicators with its own five pills.
Develop
npm run check
npm test
npm test verifies the manifest, export map, client static invariants, card width math, and icon geometry.
License
MIT
Links
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