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 borski/travel-hacking-toolkit --skill stopoversgit clone --depth 1 https://github.com/borski/travel-hacking-toolkitWrote 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/borski/travel-hacking-toolkit/stopovers)<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/stopovers"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/stopovers/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/borski/travel-hacking-toolkit/stopovers"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/stopovers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00062 | $0.02768 |
| Opus 5.5 | $0.00025 | $0.01107 |
| Sonnet 5.5 | $0.00012 | $0.00554 |
| Haiku 4.5 | $0.00006 | $0.00277 |
Grade A, and why
stopovers 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 1mo 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 — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stopover Rules per Loyalty Program
Reference data for which programs allow stopovers on award redemptions, how many, where, for how long, and at what cost. Sourced primarily from each airline's own award rules pages, cross-checked against Frequent Miler, OMAAT, Travel Miles 101, Prince of Travel, and Upgraded Points.
Data lives in data/stopovers.json. Refresh cadence is 90 days because stopover rules change rarely (much less often than transfer bonuses or program valuations).
What Is a Stopover?
A planned interruption of a journey at a point between origin and destination. The IATA standard definition is:
- More than 24 hours for international itineraries
- More than 4 hours for domestic itineraries (US/Canada)
Each loyalty program defines its own rules within or beyond this baseline. Some programs let you stop for a week. Some let you stop for 365 days. Some don't allow stopovers at all.
The headline value: a free stopover lets you visit two destinations on a single award. Iceland on the way to Europe. Tokyo on the way to Bangkok. Singapore on the way to Sydney.
When to Use This Skill
- User wants to plan a multi-city trip and asks "what's the best program for stopovers?"
- User asks about a specific program's stopover rule (e.g. "does Aeroplan allow stopovers?")
- Building a trip itinerary that could benefit from a free second destination
- Comparing programs for award redemption when stopover flexibility matters
- Identifying the cheapest "free vacation in Iceland" via Icelandair stopover
- Researching JetBlue + Icelandair partner award routings
When NOT to Use
- Cash flight stopovers (most cash fares have layover rules but not "free stopover" perks; check the airline's fare conditions instead)
- Booking the actual itinerary (use the program's website or call the booking phone)
- Award holds (use
award-holdsskill — that's a different concept) - Round-the-world tickets (use
round-the-worldskill — different framework with global routing rules)
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.
- 1mo ago First seen · 182 lines · 62 tokens per session scan A ae34b58564e5
stopovers is a skill published in the GitHub repository borski/travel-hacking-toolkit (712 stars, last pushed 7d ago), licensed MIT. It adds 62 tokens to every session and 2,768 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 2026-08-30.
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