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 bailylu/travel-hacking-toolkit --skill fligit clone --depth 1 https://github.com/bailylu/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/bailylu/travel-hacking-toolkit/fli)<a href="https://agentmods.dev/skills/bailylu/travel-hacking-toolkit/fli"><img src="https://agentmods.dev/badge/skills/bailylu/travel-hacking-toolkit/fli/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/bailylu/travel-hacking-toolkit/fli"><img src="https://agentmods.dev/badge/skills/bailylu/travel-hacking-toolkit/fli.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 | $0.00033 | $0.00684 |
| Opus 5.5 | $0.00013 | $0.00274 |
| Sonnet 5.5 | $0.00007 | $0.00137 |
| Haiku 4.5 | $0.00003 | $0.00068 |
Grade A, and why
fli 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Fli - Google Flights
Programmatic access to Google Flights via Fli library. Returns comprehensive flight search results with pricing, duration, stops, and airline information.
Source: github.com/punitarani/fli
CLI Usage
Search Flights (One-Way)
fli flights JFK LAX 2026-05-01
Search Flights (Round-Trip)
fli flights JFK LAX 2026-05-01 --return 2026-05-10
Find Cheapest Dates
fli dates JFK LAX --from 2026-06-01 --to 2026-06-30
Options
| Flag | Short | Description | Values |
|---|---|---|---|
--class |
-c |
Cabin class | economy, premium_economy, business, first |
--stops |
-s |
Max stops | non_stop, one_stop, two_stops |
--sort |
-o |
Sort results | NONE, TOP_FLIGHTS, CHEAPEST, DEPARTURE_TIME, ARRIVAL_TIME, DURATION |
--airlines |
-a |
Filter by airline codes | e.g., "AA,DELTA,UAL" |
--time |
-t |
Departure time window | e.g., "06:00,12:00" |
--return |
-r |
Return date for round-trip | YYYY-MM-DD |
--format |
-f |
Output format | table, json, csv |
Examples
Search business class, non-stop, cheapest first
fli flights JFK LHR 2026-08-15 --class business --stops non_stop --sort CHEAPEST
Search with airline filter
fli flights SFO NRT 2026-10-01 --airlines "ANA,JAL,UAL"
Find cheapest dates for a route
fli dates JFK CDG --from 2026-07-01 --to 2026-09-30 --sort CHEAPEST
JSON output for scripting
fli flights JFK LAX 2026-05-01 --format json
Output Interpretation
- Price: Total price in USD (may include taxes)
- Duration: Total travel time including layovers
- Stops: Number of stops (0 = non-stop)
- Segments: Individual flight legs with departure/arrival times
Important Notes
- Results come directly from Google Flights API
- Covers ALL airlines including Southwest (unlike Duffel/Ignav)
- Prices are live and accurate
- No API key required
- Fli MCP server (
fli-mcp) providessearch_flightsandsearch_datestools
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 · 85 lines · 33 tokens per session scan A 7f0fd6781912
fli is a skill published in the GitHub repository bailylu/travel-hacking-toolkit (11 stars, last pushed 6mo ago), licensed MIT. It adds 33 tokens to every session and 684 once invoked, about $0.0001 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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