SeaShell runs natively on Windows. You install it with a PowerShell installer and run it directly in your Windows terminal, with no Windows Subsystem for Linux and no separate Linux environment in between. Native support means SeaShell handles Windows paths, shells, git configuration, and file locking the Windows way rather than assuming a POSIX system, so the agent behaves correctly against your actual Windows repositories. SeaShell ships as a single self-contained binary for macOS, Linux, and Windows.
What native Windows support means
Many terminal coding agents assume a Linux-like environment and ask Windows users to run everything inside WSL. SeaShell runs on Windows directly, so there is no subsystem boundary between the agent and your code.
Running through WSL adds a second filesystem and shell to reason about, which can confuse an agent about paths, line endings, and which environment a command should run in. SeaShell avoids that by targeting Windows as a first-class platform. You install it with PowerShell and run it in the terminal you already use, against the repositories where they actually live on disk.
How SeaShell handles Windows correctly
Native support is in the details. SeaShell branches on the platform throughout its core: it uses the Windows shell, normalizes Windows paths, and applies the git settings Windows repositories need.
SeaShell configures git for long paths, symlinks, and line-ending behavior on Windows, chooses the right shell for running commands, and canonicalizes paths so file matching is consistent. When it removes a worktree or cleans a directory, it uses a Windows-aware retry so file locks held by other processes do not leave the tree in a broken state. These are the rough edges that break agents ported from Linux as an afterthought.
The same agent everywhere
Windows support is not a stripped-down build. The same SeaShell features, from worktree management to concurrent sessions to permission-gated edits, run on Windows exactly as they do on macOS and Linux.
Because SeaShell is one binary with first-class Windows handling, a team on mixed operating systems gets the same workflow on every machine. You pin a version and bring your own model keys on Windows the same way you would anywhere else, and your code stays on the machine either way. For Windows-first developers who do not want to live inside WSL, that parity is the point.
Frequently asked questions
- Does SeaShell run natively on Windows?
- Yes. SeaShell runs directly on Windows with a PowerShell installer, with no WSL or Linux subsystem required.
- Do I need WSL to use SeaShell on Windows?
- No. SeaShell targets Windows as a first-class platform and runs in your Windows terminal against your Windows repositories directly.
- How does SeaShell handle Windows paths and shells?
- SeaShell branches on the platform: it uses the Windows shell, normalizes Windows paths, applies Windows git settings, and uses Windows-aware file locking and retry.
- Are Windows features the same as macOS and Linux?
- Yes. The same single binary runs everywhere, so worktrees, concurrent sessions, and permission-gated edits behave the same on Windows.
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