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chengyixu/README.md

Chengyi (Wilson) Xu

Agent / LLM Engineer · Applied AI · AI Memory & Execution · Multimodal Systems · Full-Stack AI

I build reliable AI systems that connect agent orchestration, long-term memory, permission-aware execution, multimodal context, evaluation, and production engineering.

Resume · LinkedIn · Hugging Face · Nexora · Owl Intelligence

Current work

  • Owl Intelligence — Co-founder, Full-Stack AI Engineer & Product Lead
    Architecting Klik, an AI memory-and-execution wearable platform across React/TypeScript, Python/FastAPI, PostgreSQL/Redis/Elasticsearch/pgvector, APISIX, Docker, KMP clients, and C/C++ embedded software.
  • Nexora — Founder, Agentic AI Systems & R&D
    Building agentic workspaces, governed multi-agent collaboration, permission-scoped knowledge and execution, long-horizon workflows, and safe context handoffs.

Selected engineering and research

Project Focus
OhMyHerdr Native Rust agent-workspace runtime for Codex, Pi, and Claude Code profiles, with persistent instructions, isolated workspaces, and PTY-based shared terminals.
Ornith 256K LocalMoE Reproducible Apple Silicon sparse-MoE serving study with verified 260,013-token input and agent-task performance comparisons.
CLI-Bench Benchmark for AI agents learning and orchestrating command-line tools through deterministic stateful environments.
Soundscape Live-API music and content discovery platform with geolocated rankings, listening telemetry, accessibility, browser tests, and atomic deployment.
Cheat Engine CLI JSON-first Go CLI for authorized process inspection and guarded memory workflows on macOS, Windows, and remote ceserver targets.

Klik Memory

  • User-scoped typed facts with source-session provenance, confidence, and confirmation tracking
  • Asynchronous embeddings and weighted Elasticsearch BM25 + pgvector reciprocal-rank fusion
  • Version-aware correction, scoped deletion, derived-index reconstruction, and LoCoMo/LongMemEval/ConvoMem evaluation
  • On 1,986 LoCoMo QA pairs, hybrid retrieval improved R@5 from 0.356 to 0.611 (+25.5pp)

Klik Execution

  • Versioned approvals, durable action ledgers, credential and integration boundaries, and auditable external-write receipts
  • Seatbelt/Docker sandboxing, failure recovery, and reusable best-practice/anti-pattern context
  • Toolathlon: 56/63 tasks passed (88.9%); sandbox reuse reduced cold start from 16s to 150ms

Multimodal context

  • Qwen3-ASR Flash/Volcengine ASR, local Whisper, Pyannote 3.1 diarization, and ECAPA voice embeddings
  • Name/voiceprint/speaker reconciliation through user-scoped typed entities and a 19-case reconciler
  • Nine-factor session-boundary detection without interrupting continuous recording

Research artifacts

Background

My earlier work spans LLM, agent, and AI-wearable research at Minerva Capital, strategic investment at Zhipu AI, and TMT equity research. Training in finance and econometrics informs how I approach statistics, evaluation, product economics, and measurable outcomes.

Open to

Agent / LLM Engineering, Applied AI, AI memory and retrieval, agentic execution, multimodal AI, AI infrastructure, full-stack AI, and selective remote, contract, and AI-evaluation opportunities.

Contact: [email protected] · Bilingual resume

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