Knowledge Distillation

Post-investment monitoring via Longbridge Securities — tracks portfolio holdings vs plan on a quarterly / monthly basis, extracts key KPIs (revenue growth / gross margin / cash flow), flags deviations vs expectations, and generates a neutral monitoring report summarising KPI changes. For reference only — not investment advice. Triggers: "投后监控", "持仓监控", "定期复盘", "跟踪持仓", "持仓检视", "KPI跟踪", "业绩追踪", "投後監控", "持倉監控", "定期複盤", "追蹤持倉", "KPI追蹤", "post-investment monitoring", "position monitoring", "portfolio review", "KPI tracking", "performance tracking", "investment monitoring", "holding review".

Build high-performance gRPC services with Protocol Buffers, bidirectional streaming, and microservice communication. Use when building gRPC servers, defining service contracts, or implementing inter-service communication.

Diagnoses and fixes Tailscale x proxy/VPN tool conflicts (Shadowrocket, Clash, Surge, OrbStack/Docker) on macOS — route hijacking, proxy env vars, system proxy bypass, SSH ProxyCommand double-tunneling, VM/container proxy propagation, stalled macOS DNS. Use when Tailscale ping works but SSH/HTTP times out, browser returns 503 but curl works, git push fails with "failed to begin relaying via HTTP", Docker pull/build times out behind TUN/VPN, setting up Tailscale SSH to WSL or remote dev over Tailscale, ssh/curl/git hang ~60s resolving a hostname while nslookup is instant, ping to a resolver works but dig times out, ssh -vvv freezes at "debug2: resolving", raw probes impossibly fast under a TUN (nc -z 0.00s), all DIRECT-routed sites fail at once (TLS handshake EOF, UNKNOWN_CERTIFICATE_VERIFICATION_ERROR, proxy CONNECT 503) while proxied sites work — TUN DIRECT split-brain — or a Windows host TUN (v2rayN) black-holing the whole machine incl. WSL and Tailscale (event-log forensics prove wh

Modern React patterns and principles. Hooks, composition, performance, TypeScript best practices.

Plans, creates, and optimizes marketing campaigns including content strategy, social media, email, and analytics. Helps develop go-to-market strategies, campaign messaging, and performance measurement.

Author and maintain versioned Playwright (@playwright/test) TypeScript UI specs for browser user flows. Use when asked to create, run, debug, or refactor E2E tests, form/navigation/auth flows, responsive checks, UI mocking, fixtures, Page Objects, or visual comparisons. Use api-testing for standalone REST/GraphQL contracts and playwright-cli for live browser sessions. Keywords: E2E spec, Playwright test, POM, fixtures, UI regression.