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Built with Grok 4.5 / OpenCode vibe coding.
A lightweight Activity Monitor alternative for macOS (Swift / SwiftUI).
Focus: Apple vs third-party resource breakdown, a stable menu-bar panel, dual/triple refresh tracks for low overhead, and an optional root Helper for protected metrics.
| Area | What you get |
|---|---|
| Processes | Live list with CPU / memory / threads / user / PID / path / Bundle ID |
| Classification | Apple System · Apple Apps · Third-Party |
| Views | Flat list · app aggregation tree · parent/child tree |
| System strip | CPU (cores, E/P), memory (app/wired/compressed), pressure, swap, net, disk, load |
| History | CPU / memory / category CPU charts |
| Menu bar | Mini icon + frosted panel; independent top-list mode/count; resident without main window |
| Refresh | Three tracks: icon / panel / main — separate intervals, lower idle cost |
| Launch | Restores last main-window vs menu-bar-only state; no create-then-hide flash |
| Prefs | Tabbed Settings: General · Refresh · Menu Bar · Helper · About |
- Search, category filters, sort, quit / force quit, Reveal in Finder
- Hold ⌃ Control to pause main-window auto-refresh only (menu bar keeps sampling)
- CPU — user/system, per-core rings (efficiency / performance colors), adaptive multi-row or bar layout for high core counts
- Memory — app / wired / compressed / available
- Memory pressure — aligned with Activity Monitor jetsam (
kern.memorystatus_vm_pressure_level) - Swap, network throughput, page in/out, load average
- Optional CPU frequency / temperature when the privileged Helper is installed
| Track | Active when | Samples | Default | Options |
|---|---|---|---|---|
| Icon | Main closed and panel closed | System CPU + memory only (no process enum) | 3 s | 2 / 3 / 5 / 10 s |
| Panel | Panel open, main closed | Compact metrics + rankings (no root Helper pass) | 2 s | 1 / 2 / 3 / 5 s |
| Main | Main window open | Full list, charts, details; Helper fill when installed | 2 s | 1 / 2 / 5 / 10 s |
- With main open, the panel reuses full data (no extra panel timer)
- Closing main / panel drops heavy process data and falls back to the lighter track
- Long-session memory growth is reduced via autorelease pools, cache prune, lazy panel, and publish gating
- Icon modes: CPU only · MEM only · CPU + MEM dual bars (default: CPU + MEM)
- Panel: pressure + memory rings, E/P core strip, category composition, Top CPU / Top memory
- Top list mode independent of the main window: List · Grouped · Parent (default: List)
- Top count: 3–15 per column (default 8)
- Section cards use higher-contrast fill + hairline border (light/dark adaptive on frosted material)
- Footer: open main window, quit, Activity Monitor / System Information (real app icons)
- Context menu: open main window, launch at login, version, GitHub, quit
- Positioning uses
NSPanel— run a real.app, not rawswift run
- Main window is created on demand (AppKit); no SwiftUI
WindowGroupat launch → no flash when starting menu-bar-only - Closing the main window hides it (app stays in the menu bar); does not quit
- Remembers whether the main window was visible last quit (
launchMainWindowVisible); next launch restores that state - Dock icon hides when no main / settings / about window is visible
- Reopen: menu bar Full Window / context menu / Dock click / ⌘0
| Tab | Contents |
|---|---|
| General | Language (System / 中文 / English) · Theme · Launch at Login (SMAppService) |
| Refresh | Main-window interval · notes for Control-pause |
| Menu Bar | Icon mode · icon interval · panel interval · top-list mode · top count |
| Helper | Status · install / uninstall (admin password) · recheck |
| About | Category rules · purpose · version · bundle ID · MIT |
- macOS 14+
- Xcode 15+ (or Swift 5.9+ with macOS SDK)
- Optional: XcodeGen after editing
project.yml
./scripts/run-app.sh # Debug .app, then open
./scripts/run-app.sh ReleaseAvoid for menu-bar checks:
swift run— no proper app bundle (icon / panel / login item may fail)- Opening
Package.swiftas if it were a macOS Application
xcodegen generate # only if project.yml changed
open SwiftInsight.xcodeprojScheme SwiftInsight → Clean Build Folder → ⌘R.
Helper is built and copied into SwiftInsight.app/Contents/MacOS/ automatically.
swift build
swift run --product SwiftInsight./scripts/package-app.sh
open dist/SwiftInsight.appAlso embeds SwiftInsightHelper (unsigned, not setuid).
Some system-protected processes show N/A for normal users. The Helper samples with elevated rights and can provide frequency / temperature.
Full-track sampling uses the Helper when installed; the light icon track does not.
- Run a packaged
.app(Xcode orpackage-app.sh) — Helper is bundled inside. - Settings → Helper → Install Helper…
- Enter the admin password.
Installs to:
/usr/local/libexec/SwiftInsightHelper # root:wheel, mode 4755 (setuid)
Uninstall from the same Settings section, or:
sudo rm -f /usr/local/libexec/SwiftInsightHelper./scripts/install-privileged-helper.sh \
/path/to/SwiftInsight.app/Contents/MacOS/SwiftInsightHelperFor personal / local use only. Not notarized for App Store distribution.
Package.swift # SwiftPM
project.yml # XcodeGen → SwiftInsight.xcodeproj
SwiftInsight.xcodeproj/ # Xcode project (shared sources)
Sources/SwiftInsight/ # Main app (SwiftUI + AppKit menu bar / main window)
Sources/SwiftInsightHelper/ # Privileged sampling helper
Resources/Assets.xcassets/ # App icon
scripts/ # run / package / install helper
docs/ # Screenshots & logo
| SwiftPM | Xcode / packaged .app |
|
|---|---|---|
| Config | Package.swift |
project.yml → .xcodeproj |
| Sources | Sources/ |
same |
| Output | executable | .app (+ embedded Helper) |
| Menu bar / login item | limited | recommended |
- AppSession — process-level monitor / menu bar / prefs bootstrap
- MainWindowCoordinator — on-demand
NSWindow, launch preference, Dock policy - ProcessMonitor — icon / panel / full sampling tracks
- Settings-only SwiftUI
Scene; main UI hosted via AppKit when needed
MIT © 2026 0x574859 / WHYBBE/SwiftInsight