When the user asks about a vehicle by year, make, and model (without a VIN):
- Make an HTTP GET request to the CarsXE YMM API:
Only includeGET https://api.carsxe.com/v1/ymm?key={CARSXE_API_KEY}&year={YEAR}&make={MAKE}&model={MODEL}&source=codex_plugin[&trim={TRIM}]trimif the user specified one. - Present available trims, engine options, features, and specs.
- If the user didn't specify a trim, list all available trims for that year/make/model.
- If the API key is missing, tell the user to set the
CARSXE_API_KEYenvironment variable (see AGENTS.md).
Source: hashgraph-online/awesome-codex-plugins → plugins/carsxe/carsxe-codex-plugin/skills/year-make-model/SKILL.md