Capabilities
Audited 2026-08-09. A published package is availability evidence, not automatic proof that every UI path behaved identically on both operating systems. This page keeps those claims separate.
| Capability | macOS v2.1.2 | Windows v2.1.2 | Current evidence boundary |
|---|---|---|---|
| Release artifact | Published DMG | Published win-x64 ZIP | Both artifacts ship from the same tag as of v2.1.2. Homebrew points to macOS v2.1.2; WinGet and Scoop still carry v1.7.1 until those manifests are refreshed. |
| Native implementation | SwiftUI universal app | WPF self-contained app | Public source and release metadata support both implementation claims. Neither platform uses Electron. |
| Session state (Claude Code, Codex, Grok, Antigravity) | 14/14 current classifier fixtures passed | Classifier unit suites executed on a windows-latest CI runner | The public fixture result is macOS correctness evidence for fourteen listed cases, not cross-platform or future-format proof. |
| Your-turn alerts | Released and source-backed | Alarm surfaces rendered from the shipping build and reviewed per provider | Release and source evidence establish the feature boundary. This audit did not replay every notification, sound, focus, or deep-link path on both systems. |
| Provider usage and reset windows | Current published UI evidence and source | Rendered from the shipping build on a Windows runner with injected demo data | Windows rendering was exercised with injected demo data; live per-account quota still depends on each provider's own local sign-in on that machine. |
| Estimated API value and report cards | Current published UI evidence and source | Rendered from the shipping build on a Windows runner with injected demo data | Estimated API value is not subscription spend, savings, or a provider bill. Rendering evidence is not a substitute for your own machine's data. |
| Local processing boundary | No Agent Island account or product telemetry | No Agent Island account or product telemetry | Session processing is local. Optional website analytics are separate from the desktop product and require consent. |
| Install routes | Homebrew or DMG | WinGet, Scoop, or ZIP | Package-manager records re-checked on 2026-08-09: Homebrew cask at v2.1.2, WinGet and Scoop still at v1.7.1, each with hashes matching its GitHub release. Direct ZIP is v2.1.2. |
How to read the matrix
Published means an official release artifact exists. Source-backed means the implementation or test contract is visible in the public repository. Current verification means this audit observed the named result on the named platform. These states are not interchangeable.
The current fixture dataset covers fourteen synthetic Claude Code and Codex session-state cases on macOS. It does not measure latency, unknown future transcript formats, Windows UI behavior, downloads, or user outcomes.