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How to use Codex with COMSOL through sim-cli

One-sentence answer

Use sim-cli-core plus sim-plugin-comsol, sync the COMSOL skill into .agents/skills, run sim check comsol, then ask Codex to inspect and execute bounded steps through sim-cli.

Requirements

Licensed local COMSOL Multiphysics installation
Python environment
uv or pip
sim-cli-core
sim-plugin-comsol
Codex CLI or another local coding-agent harness

Install

uv add sim-cli-core sim-plugin-comsol
uv run sim plugin sync-skills --target .agents/skills --copy
uv run sim check comsol
uv run sim plugin doctor comsol --deep

Prompt for Codex

Use the installed COMSOL skill. Run sim through this project with uv run sim .... Check my local COMSOL installation before connecting. Work one bounded step at a time: connect, inspect, execute a small step, inspect results, then save or update a checkpoint before continuing. Do not guess COMSOL API names.

Workflow

check readiness → attach to live session → inspect model state
→ run one bounded CAE step → verify result/state → save checkpoint/artifacts

For COMSOL, that may be one geometry/material/physics update, one mesh operation, one study solve, one plot creation, or one exported table/probe.

Limitations

sim-cli does not bundle COMSOL. You must provide your own licensed solver installation.

Troubleshooting

See Troubleshooting COMSOL.