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 agentmods add skills/wolfiesch/flightfinder/skillnpx skills add wolfiesch/flightfinder --skill skillgit clone --depth 1 https://github.com/wolfiesch/flightfinderWhat 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 | $0.00000 | $0.00631 |
| Opus 5 | $0.00000 | $0.00316 |
| Sonnet 5 | $0.00000 | $0.00126 |
| Haiku 4.5 | $0.00000 | $0.00063 |
Grade A, and why
skill 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 2d 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 — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FlightFinder Skill
Search for flights and hotels to plan trips. No API keys required.
Activation Triggers
Use this skill when the user mentions:
- "find flights", "search flights", "flight to", "fly to"
- "find hotels", "search hotels", "hotels in"
- "plan trip", "trip to", "travel to"
- "cheap flights", "cheapest flights"
- "round trip", "roundtrip"
- "airport code", "what airport"
Installation
pip install flightfinder
Verify installation:
flights --help
Available Commands
One-Way Flight Search
./scripts/search.sh <origin> <destination> [days_from_now]
Example:
./scripts/search.sh SFO LAX 30
Returns JSON with flights sorted by price.
Round-Trip Search
./scripts/roundtrip.sh <origin> <destination> <days_from_now> <min_days> <max_days>
Example:
./scripts/roundtrip.sh SFO tokyo 30 7 14
Hotel Search
./scripts/hotels.sh <city>
Example:
./scripts/hotels.sh "new york"
Supported cities: New York, Los Angeles, San Francisco, Tokyo, Paris, London, etc.
Combined Trip Search
./scripts/trip.sh <origin> <destination> <days_from_now> <nights>
Example:
./scripts/trip.sh SFO tokyo 30 7
Returns both flights and hotels with estimated total cost.
Airport Lookup
./scripts/location.sh <query>
Example:
./scripts/location.sh "San Francisco"
Response Format
All scripts output JSON to stdout. Status messages go to stderr.
Example flight response:
{
"count": 10,
"search": {
"origin": "SFO",
"destination": "LAX",
"dates": "2026-02-23 to 2026-03-02"
},
"flights": [
{
"price": 89,
"origin": "SFO",
"destination": "LAX",
"departure": "2026-02-24T06:00:00",
"duration": "1h 25m",
"stops": 0,
"carriers": ["United"],
"booking_url": "https://..."
}
]
}
Tips
- Use "anywhere" as destination to find cheapest destinations
- Price is in USD
- Stops = 0 means direct flight
- booking_url provides direct link to book
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 128 lines · 0 tokens per session scan A 94e5965781fe
skill is a skill published in the GitHub repository wolfiesch/flightfinder (3 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 631 tokens. 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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