Individual skill

year-make-model

Look up vehicle data by Year, Make, and Model using the CarsXE YMM API. Use this when a user doesn't have a VIN but knows the year, make, and model of a vehicle and wants specs, trims, or features.

plugins/carsxe/carsxe-codex-plugin/skills/year-make-model/SKILL.md

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Last checked: Nov 4, 2026

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Repository stars (not skill ratings): 1,531
Repository last updated: Nov 6, 2026
License: Apache-2.0

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When the user wants to browse available years, makes, models, or trims (dropdowns, "which years was X sold"), use the `ymm-options` skill (`/v1/ymm-options`) instead of this specs lookup.

When the user asks about a vehicle by year, make, and model (without a VIN):

1. Make an HTTP GET request to the CarsXE YMM API:
   ```
   GET https://api.carsxe.com/v1/ymm?key={CARSXE_API_KEY}&year={YEAR}&make={MAKE}&model={MODEL}&source=codex_plugin[&trim={TRIM}]
   ```
   Only include `trim` if the user specified one.
2. Present available trims, engine options, features, and specs.
3. If the user didn't specify a trim, list all available trims for that year/make/model.
4. If the API key is missing, tell the user to set the `CARSXE_API_KEY` environment variable (see AGENTS.md).