FlexAgent MCP is an AI assistant that understands photonic simulation concepts, the PhotonForge and Tidy3D APIs, and can interact with your design environment to provide context-aware support - from learning concepts to building simulations from scratch.
FlexAgent is available as a plugin for Claude Code and Codex, as a Cursor/VS Code extension, or as a standalone MCP server. Choose the option that matches your environment.
Understand Tidy3D and PhotonForge concepts and workflows.
"Explain how Tidy3D FDTD updates the fields"
Diagnose and resolve simulation validation errors and issues.
"Fix the structure-related validation error"
Modify existing simulations - swap monitors, update parameters, change materials.
"Replace the FluxMonitor with a ModeMonitor"
Create new simulation setups from natural-language descriptions.
"Create a y-junction waveguide simulation"
Interpret and visualize simulation output - fields, modes, S-parameters.
"Plot all the electric field components"
Explore what agentic photonic design looks like in practice - from chip layout automation to multi-physics modulator optimization.
An autonomous agent packed 306 photonic test structures into a compact die with 82% area occupancy in minutes - work that would take an engineer a full day.
Read post ↗An agent designs a complete 4-channel WDM transceiver operating at 25 GBd PAM-4, progressively building from a single microring modulator to a full system.
Read post ↗An agent coordinated four coupled physics simulations to produce ten optimized silicon MZMs overnight, each representing a different point on the bandwidth-vs-efficiency frontier.
Read post ↗An agent explores coplanar-waveguide geometries for high-speed modulators, mapping tradeoffs between microwave loss and impedance to identify optimal topologies.
Read post ↗An agent completes in 2.5 minutes what takes engineers 2-3 hours - connecting 32 contact points to bondpads with zero violations while avoiding heaters and route conflicts.
Read post ↗Video walkthroughs of AI-assisted workflows are coming soon.