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 google-flightsgit 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/google-flights)<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/google-flights"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/google-flights.svg" alt="Measured on agentmods" 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 | $0.00032 | $0.01706 |
| Opus 5 | $0.00016 | $0.00853 |
| Sonnet 5 | $0.00006 | $0.00341 |
| Haiku 4.5 | $0.00003 | $0.00171 |
Grade A, and why
google-flights 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 8d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Flights Search
Search Google Flights via agent-browser to find flight prices, schedules, and availability.
Prerequisites
Requires agent-browser CLI:
npm install -g agent-browser && agent-browser install
When to Use
- User asks to search/find/compare flights or airfare
- User wants to know flight prices between cities
- User asks about flight schedules or availability
- User wants to find the cheapest flight for specific dates
- Southwest flights: Google Flights is one of the only sources for SW cash prices. No GDS or API returns Southwest.
When NOT to Use
- Completing purchases: This skill finds flights and extracts booking links, but do not attempt to complete a purchase on a booking site.
- Hotels/rental cars: Use other tools for non-flight travel searches.
- Historical price data: Google Flights shows current prices, not historical.
Session Convention
- Economy + Business comparison (default):
--session econand--session biz - Single cabin search:
--session flights - Interactive fallback:
--session flights
Fast Path: URL-Based Search (Preferred)
Construct a URL with a natural language ?q= parameter. Loads results directly. 3 commands total.
URL Template
https://www.google.com/travel/flights?q=Flights+from+{ORIGIN}+to+{DEST}+on+{DATE}[+returning+{DATE}][+one+way][+business+class][+N+passengers][&gl=XX]
Default: Economy + Business Comparison
Run two parallel sessions (economy and business) to show the price delta:
# Launch both in parallel
agent-browser --session econ open "https://www.google.com/travel/flights?q=Flights+from+BKK+to+NRT+on+2026-03-20+returning+2026-03-27" &
agent-browser --session biz open "https://www.google.com/travel/flights?q=Flights+from+BKK+to+NRT+on+2026-03-20+returning+2026-03-27+business+class" &
wait
# Wait for both to load
agent-browser --session econ wait --load networkidle &
agent-browser --session biz wait --load networkidle &
wait
# Snapshot both
agent-browser --session econ snapshot -i
agent-browser --session biz snapshot -i
# Close biz (only needed for delta column); keep econ alive for booking links
agent-browser --session biz close
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.
- 8d ago First seen · 179 lines · 32 tokens per session scan A fdf7fd2a3b33
google-flights is a skill published in the GitHub repository borski/travel-hacking-toolkit (653 stars, last pushed 7d ago), licensed MIT. It adds 32 tokens to every session and 1,706 once invoked, about $0.0002 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 2026-08-30.
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