CAD Skills vs port22: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of CAD Skills and port22 — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
C
CAD Skills
earthtojake
Open-source library of agent skills for CAD, robotics, fabrication, and simulation — generate STEP/STL, URDF/SRDF/SDF, DXF, and slicer G-code from prompts.
Key features
- Prompt-to-CAD Generation: The CAD skill creates and edits parametric CAD models from natural language or image requests, exporting to STEP, STL, 3MF, and GLB.
- URDF Robot Description: Writes robot structure files with links, joints, limits, inertials, and meshes ready for ROS-based stacks.
- SRDF for MoveIt2: Adds planning groups, end effectors, named poses, and collision rules on top of a URDF for MoveIt2 planning.
- SDF Simulation Worlds: Creates simulator models and worlds with frames, physics, sensors, and lights.
- 2D DXF Drawings: Produces cut-ready DXF profiles, templates, gaskets, and layouts from Python or CAD geometry.
- G-code Slicing: Slices supported mesh files into validated, printer-profiled FDM G-code using real slicer CLIs.
- Bambu Lab Print Jobs: Dry runs, uploads, and cautiously starts local Bambu Lab prints from validated G-code.
- CAD Viewer Previews: Local browser previews for CAD, G-code, URDF, and other robot files for fast agent iteration.
Best for
- Agentic Mechanical Design: Let a coding agent iterate on brackets, flanges, and enclosures directly from natural-language specs.
- Robot Description Authoring: Generate URDF/SRDF/SDF files for new robot arms or mobile bases without hand-writing XML.
- Rapid Prototyping: Take a CAD model to sliced, printer-ready G-code and kick off a Bambu Lab print from within an agent workflow.
- Custom Part Fabrication: Produce DXF/STEP files pre-checked for SendCutSend, then order laser-cut or CNC parts.
- Simulation Setup: Author SDF worlds for physics simulators with the right frames, sensors, and lighting for robotics research.
- Off-the-Shelf Sourcing: Use step.parts to pull ready-made STEP models for common hardware like screws, bearings, and connectors.
port22
port22
Mobile remote for AI coding agents — pair your phone with a Mac companion and drive Claude Code, Codex, or OpenCode from anywhere.
Key features
- Attach to a Live Session: Drives the agent session you already started in your terminal rather than spawning a fork or shadow instance.
- Multi-Agent Support: Works with Claude Code, Codex, and OpenCode today, with OpenClaw and Hermes on the roadmap.
- Live Token Streaming: Reads every token the agent produces as it thinks, edits files, and runs commands, streamed to your phone in real time.
- Push Approvals: Sends a push the moment an agent finishes or needs input so you can approve or answer without opening the app.
- Dynamic Island & Lock-Screen Status: Shows a live count in the Dynamic Island and the full session roster on the lock screen.
- iCloud Pairing: Same Apple ID on Mac and iPhone auto-pairs devices — no new login and no QR code scanning.
- LAN-First with Encrypted Relay: Uses the local network at your desk and falls back to an end-to-end-encrypted relay when remote, keeping code off port22 servers.
Best for
- Approve Long-Running Agents on the Go: Kick off a Claude Code refactor and approve intermediate steps from your phone during commute or errands.
- Monitor Overnight Runs: Watch an agent's live transcript from bed or a meeting without returning to the desk.
- Cross-Room Development: Continue a coding session from the couch while the actual model, tools, and repo stay on the Mac.
- Multi-Session Oversight: Track several parallel agent sessions from one phone view instead of tab-switching on the Mac.
- Remote Debugging Assist: Read an agent's reasoning stream from a client site or coffee shop before deciding whether to intervene.