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Generate, modify, and debug sing-box client configuration files (v1.12+). Covers TUN and system proxy modes for end-user devices (SFM/SFA/SFI/CLI). Does NOT cover server-side setup (proxy server inbound listeners). Use this skill whenever the user mentions sing-box, singbox, SFM, SFA, SFI, TUN/system proxy setup, split routing, rule-set based routing, or asks to create/modify/fix a client config. Also trigger when the user wants specific domains or common foreign sites to always go proxy/direct, needs Clash/V2Ray nodes converted to sing-box (VLESS, VMess, Shadowsocks, Trojan, Hysteria2, TUIC, ShadowTLS, AnyTLS), or is debugging DNS hijack, fakeip, selector, rule-set download, or connectivity issues. Also covers advanced client features: multiplex/mux, TLS fragment (anti-DPI), ECH, proxy chaining (detour), WireGuard endpoints, per-app routing (Android), network strategy (mobile WiFi/cellular), and WiFi SSID-based routing.
Created by: songlin she · GitHub