Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add carsxe/carsxe-claude-plugin --skill year-make-modelgit clone --depth 1 https://github.com/carsxe/carsxe-claude-pluginWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/carsxe/carsxe-claude-plugin/year-make-model)<a href="https://agentmods.dev/skills/carsxe/carsxe-claude-plugin/year-make-model"><img src="https://agentmods.dev/badge/skills/carsxe/carsxe-claude-plugin/year-make-model/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/carsxe/carsxe-claude-plugin/year-make-model"><img src="https://agentmods.dev/badge/skills/carsxe/carsxe-claude-plugin/year-make-model.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00054 | $0.00255 |
| Opus 5 | $0.00027 | $0.00128 |
| Sonnet 5 | $0.00011 | $0.00051 |
| Haiku 4.5 | $0.00005 | $0.00026 |
Grade A, and why
year-make-model scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
When the user wants to browse available years, makes, models, or trims (dropdowns, "which years was X sold"), use the YMM Options API (/v1/ymm-options) instead of this specs lookup.
When the user asks about a vehicle by year, make, and model (without a VIN):
- Make an HTTP GET request:
Only includeGET https://api.carsxe.com/v1/ymm?key={CARSXE_API_KEY}&year={YEAR}&make={MAKE}&model={MODEL}&source=claude_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.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday Changed · +2 lines ee24f6df6623
- 11d ago First seen · 16 lines · 54 tokens per session scan A 3b33fd9fccbd
year-make-model is a skill published in the GitHub repository carsxe/carsxe-claude-plugin (2 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 255 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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flow-next-resolve-pr
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flow-next-tracker-sync
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taiyi-diagram-c4
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writing-style
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