Platforms & capabilities

Operating systems

Supported operating systems are Linux, Windows, and macOS. Chrome is the currently supported browser.

Where rules run

Rule type	Runs in
Redirects, query parameters, request/response headers	Entirely in the browser (DNR).
Mocks	Local mock/response server (127.0.0.1).
Response-body rewriting	Local runtime via native messaging.
Request-body replacement/modification	Local runtime via native messaging (TLS proxy).

Capability-based activation

• Mocks, response-body, and request-body rules use the unified native host, started by the browser via the extension’s Start/Stop controls; the host itself runs as rogatio runtime host <path>. Request-body rules additionally use rogatio runtime install | uninstall; the same install command also provisions the device-local CA on capable platforms. uninstall removes the host manifest, the device-local CA files, and the trust installation (idempotent).
• Mock, response-body, and request-body rules share one runtime session.

Limitations

• Request-body activation is capability-based, excludes private browsing, and cannot compose with another controlling proxy, PAC, extension, or enterprise policy.
• The runtime activates only where a trusted device-local CA can be provisioned and Chrome PAC routing does not collide with an existing controlling proxy/PAC/extension/enterprise policy.
• macOS is the reference supported platform. Linux and Windows may also activate when those capabilities are present; where they are absent, activation reports unsupported, and Linux/Windows can still verify, edit, import, export, and dry-run request-body rules.