Sigil

About Sigil

As AI coding agents and automated developer tools take on a larger role in our day-to-day workflows, software security is shifting from a background concern to a frontline priority. Because agents execute code, manage environments, and push to repositories on our behalf, developers need complete clarity on how their local credentials are being accessed and used—especially when constantly juggling different personal and work SSH keys across multiple projects. Sigil is a native, local-first macOS control panel built to bring total transparency to your Mac's SSH identity chain. Rather than acting as a custom agent or password manager, Sigil makes your existing system configuration instantly readable. Select any host to inspect its exact resolution path from SSH config rules and provider agents down to hardware protection states and public-key fingerprints. Sigil helps you verify you're authenticating with the right identity before pushing, spot configuration conflicts, catch missing key files, and confidently generate non-exportable, Secure Enclave–backed credentials protected by biometrics. Everything runs strictly on your Mac with zero cloud sync, remote connections, or telemetry, giving you full control over your work and personal profiles in an increasingly automated world.