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 mtnrabi/travel-agent-skills --skill fare-watchgit clone --depth 1 https://github.com/mtnrabi/travel-agent-skillsWrote 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/mtnrabi/travel-agent-skills/fare-watch)<a href="https://agentmods.dev/skills/mtnrabi/travel-agent-skills/fare-watch"><img src="https://agentmods.dev/badge/skills/mtnrabi/travel-agent-skills/fare-watch/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/mtnrabi/travel-agent-skills/fare-watch"><img src="https://agentmods.dev/badge/skills/mtnrabi/travel-agent-skills/fare-watch.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 | $0.00299 | $0.02556 |
| Opus 5 | $0.00150 | $0.01278 |
| Sonnet 5 | $0.00060 | $0.00511 |
| Haiku 4.5 | $0.00030 | $0.00256 |
Grade A, and why
fare-watch scanned grade A with 1 finding 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 12d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -sS -X POST 'https://google-flights-live-api.p.rapidapi.com/api/google_flights/oneway/v1' \ How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Fare Watch
Overview
This skill turns a one-off flight search — or the rate for one named hotel on fixed dates — into a repeated check: run the identical search on a schedule, compare the live fare against Google's historical range for that route and period, and decide whether it is low, typical, or high. Use travel-data-api for auth, base URLs, and endpoint details. Prefer the hosted MCP tools when a client is configured. The fields this skill decides on are price_as_number (or total_price_as_number on round-trip), price_insights_low, price_insights_high, price_range_in_relation_to_other_periods, and buy_link.
Fares are never cached. Every check is a fresh, billed request. A price from an earlier check, an earlier message, or a stored history row is a record of the past, never an answer to "what does it cost now".
Endpoints
| What you are checking | REST endpoint | MCP tool |
|---|---|---|
| One-way fare on a fixed date | POST /api/google_flights/oneway/v1 |
search_oneway_flights |
| Round-trip fare on fixed dates | POST /api/google_flights/roundtrip/v1 |
search_roundtrip_flights |
| A window of dates in a single call | one REST call per date | either tool with departure_date_from / departure_date_to |
| A hotel rate alongside the flight | POST /hotel_by_name |
n/a |
Flights host: google-flights-live-api.p.rapidapi.com. Hotels host: booking-live-api.p.rapidapi.com.
Workflow
- Pin the exact search. Record
from_airport,to_airport,departure_date(andreturn_date),passengers,seat_type,currency, and the stop limit —max_stopson one-way,max_departure_stops/max_return_stopson round-trip. Every later check must repeat these values verbatim — a cheaper number produced by a different query is not a drop. - Answer "is this a good price?" with one call. Read
price_range_in_relation_to_other_periods(low|typical|high) and theprice_insights_low/price_insights_highrange off the cheapest item. This question needs no history. - For "tell me when it drops", re-run the identical call on every scheduled check. Never reuse the previous response. Tell the user the per-check cost before the watch starts.
- Append one row per check to a history file (shape below), including checks that returned nothing.
- Compare against the history and apply the meaningful-drop test below. Alert on a meaningful drop; stay quiet on noise.
- Report with
checked_atand thebuy_link, and state that the fare can move before the user finishes booking.
What ships with it
1 file 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.
- 12d ago First seen · 120 lines · 299 tokens per session scan A b730d4af1b13
fare-watch is a skill published in the GitHub repository mtnrabi/travel-agent-skills (4 stars, last pushed 8d ago), licensed MIT. It adds 299 tokens to every session and 2,556 once invoked, about $0.0015 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
exploratory-data-analysis
Perform bounded, local exploratory analysis of explicitly supported scientific files. Use for redacted CSV/TSV/JSON profiles; optional NumPy, HDF5, FASTA/FASTQ, and basic image metadata inspection; missingness/leakage audits; outlier and transformation sensitivity; and rigorous EDA report scaffolds. Other domain…
google-ads-audit
Google Ads account audit and business context setup. Use for account-health audits and business-context setup. Trigger on "audit my ads", "ads audit", "set up my ads", "onboard", "account overview", "how's my account", "ads health check", "what should I fix in my ads", or when the user is new to NotFair and hasn't run…
data-charts-tako
Search and visualize the world's data - get charts, insights, and embeddable knowledge cards for finance, economics, demographics, sports, and more.
webhook-management
Configure and validate CCAM webhook targets across supported chat, incident, automation, and generic providers. Use when listing provider requirements, creating or updating a target, scoping it to alert rules, sending a test notification, reviewing delivery history, or deleting a target.
gesellschaftsrechtliche-satzungen-agb
Für Gesellschaftsrechtliche Satzungen AGB Abgrenzung: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt. Fachgebiet: AGB-Recht-Prüfer. Route: gesellschaftsrechtliche-satzungen-agb.
master-yinguang
A reference-based assistant for questions about Yinguang and Pure Land Buddhism, a Buddhist tradition focused on faith, ethical living, and practice connected with rebirth in the Pure Land. It can answer in Yinguang’s historical teaching style.