KenFutWork — BYOK Agent Workbench

$ Overview

A pluginized BYOK agent workbench. Code (coding agent, working directory as project) and Design (infinite canvas) modes; the server is a plugin kernel where third-party plugins contribute tools / prompt fragments / HTTP routes / UI panels. Ships as a local desktop bundle (embedded Postgres + runtimes, zero install), Docker self-hosting, or a multi-tenant cloud.

$ Highlights

• Plugin kernel: third-party plugins extend the platform via tools / systemPrompt / routes / ui, with no access to kernel services
• BYOK safety: API keys are write-only — AES-256-GCM encrypted at rest, masked in logs, isolated per workspace
• Two modes, six execution styles: Code (chat + working directory) and Design (infinite canvas)
• Three deployment forms: zero-install Windows desktop bundle, Docker self-hosting, multi-tenant cloud (third-party plugins off by default)

$ Tech Stack

• Next.js 16
• React 19
• Fastify 5
• LangChain
• PostgreSQL