Added

fx agent support. New agent fx (https://fx.sh): directory probing, launch, one-shot (fx ask), MCP/skill discovery, install and update sources. When the Grok plugin switches accounts, subscription credentials can be synced to ~/.fx/grok-auth.json (login-type OIDC accounts only).
fx Herdr status channel. The host impersonates a Herdr multiplexor, and fx reports idle/working/blocked over a Unix socket; sockets are isolated per instance userData, same-name panels across multiple windows fail closed, only fx panels get the ownership env injected, and ingest requires OSC to have lit fx.

Fixed

Generalized peer-sync targets. Codex/Claude keep a local narrow target set, while Grok exclusively uses fx targets; shared PeerAvailability.fx is optional, and old snapshots remain compatible.
Refreshed expired Grok remaining-resets live fixture. A token expiring on 2026-09-12 caused 4 test cases to fail; rebuilt a same-shaped fixture expiring in 2030.
Corrected duplicate-discovery semantics for fx skills. fx reads both .agents + .claude, with no deterministic resolution, so duplicate-discovery is reported as multi-root-scan.