Cross-platform parity status

Living matrix of computer-use capabilities across the five supported targets. Linux is the reference implementation. macOS and Windows ports are code-complete but only some have been runtime-verified in CI. iOS and AOSP ship a typed Capacitor bridge but neither has been validated end-to-end on hardware in this repo's CI.

Cell legend:

• verified — exercised on real hardware in CI or by a maintainer
• code-parity — feature-equivalent code path exists, runtime untested
• stub — surface present but no real implementation
• blocked: <reason> — OS does not allow the operation in our delivery model

Capability matrix

Capability	Linux	macOS	Windows	iOS	Android (AOSP / consumer)
screenshot / capture / displays	OWNED BY TASK 3	OWNED BY TASK 3	OWNED BY TASK 3	code-parity (ReplayKit foreground; broadcast extension flaky on iOS 26 beta)	code-parity (MediaProjection, requires user consent)
computerUse — mouse / keyboard	verified (xdotool)	code-parity (cliclick + AppleScript / Swift CGEvent fallbacks)	code-parity (PowerShell user32.dll P/Invoke)	blocked: stock iOS forbids cross-app input	code-parity (AccessibilityService gesture dispatch)
windowList	verified (wmctrl / xdotool)	code-parity (AppleScript System Events)	code-parity (PowerShell Get-Process + ProcessName)	blocked: no cross-app process enumeration	code-parity (UsageStatsManager via enumerateApps)
windowFocus / move / minimize / maximize / close	verified (wmctrl / xdotool)	code-parity (AppleScript via runDarwinWindowScript)	code-parity (PowerShell SetForegroundWindow / SetWindowPos / ShowWindow)	blocked: own-app only	blocked: own-app only
browser (Puppeteer-core driving Chromium)	verified (Chrome / Edge / Brave / Chromium)	code-parity (Chrome / Edge / Brave / Brave Beta / Brave Nightly / Arc / Chromium / Vivaldi / Opera)	code-parity (Chrome / Edge / Brave / Brave Beta / Arc / Vivaldi)	blocked: no Chromium on iOS	code-parity (Chrome via Termux)
terminal	verified (/bin/bash via execFile)	code-parity (/bin/bash via execFile)	code-parity (powershell.exe -NoProfile -Command + Win-specific blocklist)	blocked: no shell on iOS	code-parity (Termux shell)
fileSystem (read / write / delete)	verified (node:fs + cross-platform validateFilePath)	verified (same)	verified (same; UNC + reserved-name guard)	blocked: app-sandbox only	blocked: scoped storage only
clipboard	OWNED BY TASK 7	OWNED BY TASK 7	OWNED BY TASK 7	OWNED BY TASK 7	OWNED BY TASK 7
accessibility tree (a11y)	OWNED BY TASK 7	OWNED BY TASK 7	OWNED BY TASK 7	code-parity (accessibilitySnapshot returns own-app tree only)	code-parity (AccessibilityService getRootInActiveWindow)
permissions probe — accessibility	n/a	code-parity (TCC database read)	n/a (no per-app gate)	n/a	code-parity (AccessibilityService running flag)
permissions probe — screen recording	n/a	code-parity (TCC database read)	code-parity (CapabilityAccessManager\\graphicsCaptureProgrammatic)	code-parity (ReplayKit prompt outcome)	code-parity (MediaProjection consent outcome)
permissions probe — camera / microphone	n/a	code-parity (TCC database read)	code-parity (CapabilityAccessManager\\webcam / \\microphone)	code-parity (AVAuthorizationStatus)	code-parity (CAMERA / RECORD_AUDIO runtime grant)
OCR	code-parity (Tesseract subprocess)	code-parity (Tesseract; Apple Vision via iOS bridge when running on iPad-as-host)	code-parity (Tesseract subprocess)	code-parity (Apple Vision OCR via visionOcr)	stub (no Android-native OCR provider yet — falls back to Tesseract on host)
AppIntents (driving other apps via system shortcuts)	blocked: not an iOS-only concept	blocked: not an iOS-only concept	blocked: not an iOS-only concept	code-parity (appIntentInvoke, registry covers Mail / Messages / Notes / Reminders / Music / Maps / Safari)	blocked: Android equivalent is Intent dispatch, not exposed here
memory pressure signal	verified (host RSS sampling)	code-parity (host RSS sampling)	code-parity (host RSS sampling)	code-parity (UIApplicationDidReceiveMemoryWarningNotification + os_proc_available_memory)	code-parity (onTrimMemory ComponentCallbacks2)
process listing	verified (/proc)	code-parity (ps -axco)	code-parity (`Get-Process	ConvertTo-Json`)	blocked: no cross-app enumeration

Notes

• Linux paths are the reference implementation and have CI coverage in plugins/plugin-computeruse/src/__tests__/*.real.test.ts.
• macOS and Windows code paths are unit-tested with mocks (platform-capabilities.test.ts, windows-list.real.test.ts); the actual shell-out has not been driven against a real macOS/Windows host in CI.
• iOS bridge: pair every call site with featureCheck() (synchronous) and bridge.probe() (async, returns the per-capability matrix).
• Android bridge: same pattern. AOSP system-app capabilities (SurfaceControl.captureDisplay, injectInputEvent, IActivityManager) are documented in docs/ANDROID_CONSTRAINTS.md but never compiled into the consumer build — the matrix above reflects the consumer surface.

Stubs that remain

• OCR — Android: no Android-native OCR provider; falls back to a host-side Tesseract subprocess when one is available. Adding ML Kit Text Recognition is tracked separately.
• Permissions probe — accessibility on Linux/Windows: no equivalent of the macOS TCC database; probePermission returns {granted:true, probed:false} so callers must rely on runtime error classification instead.