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 OctoTrip/rental-cars --skill rental-car-searchgit clone --depth 1 https://github.com/OctoTrip/rental-carsWrote 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/octotrip/rental-cars/rental-car-search)<a href="https://agentmods.dev/skills/octotrip/rental-cars/rental-car-search"><img src="https://agentmods.dev/badge/skills/octotrip/rental-cars/rental-car-search/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/octotrip/rental-cars/rental-car-search"><img src="https://agentmods.dev/badge/skills/octotrip/rental-cars/rental-car-search.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 | $0.00046 | $0.00846 |
| Opus 5.5 | $0.00018 | $0.00338 |
| Sonnet 5.5 | $0.00009 | $0.00169 |
| Haiku 4.5 | $0.00005 | $0.00085 |
Grade A, and why
octotrip-rental-car-search 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 9d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OctoTrip Rental Car Search
Search and compare rental cars with real-time pricing from multiple providers worldwide. Free, no API key required.
Connect
Add the OctoTrip Rental Cars MCP server to your configuration:
{
"mcpServers": {
"octotrip-rental-cars": {
"url": "https://mcp.octotrip.app/rental-cars/mcp"
}
}
}
Transport: Streamable HTTP. No authentication, no API key, no login.
Search Parameters
Call the search tool with:
| Parameter | Required | Default | Description |
|---|---|---|---|
location |
yes | -- | Pickup location: city, airport, station, address, or landmark |
pickup_date |
yes | -- | YYYY-MM-DD or natural-language date |
dropoff_date |
yes | -- | Must be after pickup date |
dropoff_location |
no | same as pickup | Different dropoff for one-way rentals |
pickup_time |
no | "12:00" | 24-hour HH:MM format |
dropoff_time |
no | "12:00" | 24-hour HH:MM format |
currency |
no | "EUR" | ISO 4217 code (EUR, USD, GBP, etc.) |
language |
no | "en" | Language code (en, de, etc.) |
age |
no | 30 | Driver age, minimum 18 |
Handling Results
Results are grouped by SIPP car category (economy, compact, SUV, etc.) with the cheapest options per group.
Each result includes:
- name, vendor, category (e.g. "Compact", "SUV")
- price, price_per_day, currency
- transmission (automatic/manual), passengers, bags, doors
- fuel_policy, mileage (usually "Unlimited")
- free_cancellation, free_amendment
- deposit and excess amounts
- included_protections -- list of insurance coverages
- booking_url -- a link the user can open to book
Present results by category. Highlight the cheapest option overall and mention the deposit/excess amounts since they vary significantly between vendors.
When comparing options, note:
- Pay now vs. pay later: some vendors split payment
- Fuel policy: "Full to full" means return with a full tank
- Free cancellation: important for flexible travel plans
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.
- 9d ago First seen · 83 lines · 46 tokens per session scan A ac86f8053719
octotrip-rental-car-search is a skill published in the GitHub repository OctoTrip/rental-cars (7 stars, last pushed 8d ago), licensed MIT. It adds 46 tokens to every session and 846 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-04.
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