Hardware-in-the-Loop (HIL) automation gateway and FastMCP server for embedded target boards
AE-HW-BRIDGE (Agents Engine Hardware Bridge)
Hardware-in-the-Loop (HIL) automation gateway and FastMCP server for the Agents Engine (ae) ecosystem.
ae-hw-bridge provides AI agents (Agents Engine, Claude, Gemini, Cursor) with a safe, programmable, tool-based interface to interact with physical development boards (DUTs) via the Model Context Protocol (MCP).
It pairs with the hw-puppet Dual-CDC USB bridge. Precompiled firmware binaries are available on the hw-puppet Releases page.
Key Principles Separation of Concerns: Low-level hardware drivers and USB descriptors live in hw-puppet, while high-level orchestration, IPC multiplexing, and MCP tools live in ae-hw-bridge. Zero Host Contention & Virtual PTY: An auto-spawning, target-scoped daemon (ae-hw-bridge-daemon) manages exclusive access to physical serial devices and exposes a virtual pseudoterminal symlink (/tmp/ae-hw-bridge-uart). Developers can watch UART logs live (via tio, minicom, or ae-hw-bridge console) concurrently with AI agents running tasks without port collision (Device or resource busy). Multi-Target & Multi-Puppet: Safely binds multiple physical boards via hardware badges (stored in ESP32-S3 NVS) and Linux sysfs USB pairing without serial port number guessing or symlink collisions. Agent Safety: Internal @repl methods are filtered out from MCP exposure; agents interact strictly through vetted, high-level business tools (fullreboot, login, sendtargetcommand, waitforconsolepattern, etc.). Dynamic Target Loading: Target behavior (pin definitions, boot sequences, login credentials) is defined modularly under .a
From the project README.
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