compare-flights

compare-flights is a skill for Claude Code from borski/travel-hacking-toolkit. It costs 46 tokens per session (3,094 once invoked), scanned A, original, MIT.

A flight-search workflow that combines cash fares, airline award seats, and travel-portal prices in one comparison. Award seats are flights available for points or miles instead of money.

In plain words
What is it for?
Use it to compare flights across dates and programmes, find cheaper points options, and receive transfer-partner recommendations.
Why use it?
It removes the need to search several flight sources separately and helps compare paying cash, using points directly, or transferring points to an airline.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the travel-hacker plugin — 48 skills, 1 agent, 6 MCP servers shipped together

Good fit Use it to compare flights across dates and programmes, find cheaper points options, and receive transfer-partner recommendations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/borski/travel-hacking-toolkit/compare-flights
Install

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.

Any agent
npx skills add borski/travel-hacking-toolkit --skill compare-flights
Clone the repo
git clone --depth 1 https://github.com/borski/travel-hacking-toolkit

Made for: Claude Code.

Or install travel-hacker, the plugin that ships this one along with the rest of its 48 skills, 1 agent, 6 MCP servers.

Wrote 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.

agentmods badge for compare-flights

README.md
[![agentmods](https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/compare-flights.svg)](https://agentmods.dev/skills/borski/travel-hacking-toolkit/compare-flights)
Your own site
<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/compare-flights"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/compare-flights.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,094 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00046 $0.03094
Opus 5 $0.00023 $0.01547
Sonnet 5 $0.00009 $0.00619
Haiku 4.5 $0.00005 $0.00309

Measured 8d ago against content hash 73a903f894d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

compare-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.

plugins/travel-hacking-toolkit/skills/compare-flights/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Compare Flights

Search every available source for a route and present one unified comparison. Combines cash pricing, award availability, portal pay-with-points, and transfer partner optimization into a single table.

This is an orchestration skill. It tells the agent which tools to run and how to combine results. No standalone script.

Companion reference skills. Load these for deeper context:

  • flight-search-strategy — full source priority, market selection, source accuracy hierarchy
  • points-valuations — CPP rules, floor/ceiling, surcharge programs, transfer bonuses
  • partner-awards — alliance + bilateral partnership reachability
  • lessons-learned — Seats.aero workflow, Southwest specifics, Companion Pass math
  • fallback-and-resilience — what to do when a source fails
  • transfer-bonuses — current active transfer bonuses (live data); changes effective ratios when computing options 4-7 of the comparison table
  • stopovers — when an itinerary has a long layover or multi-city, check if a stopover-allowing program priced lower than separate one-ways
  • round-the-world — for 3+ stop multi-region itineraries, RTW products may beat sum-of-parts award pricing
  • award-holds — many major Western programs (UA, Aeroplan, AS, DL, BA, ANA, Qatar, Korean) no longer offer holds. Some still do: AA (24h online), Lufthansa M&M (5 days), Flying Blue (3 days, $25 phone fee), Cathay (2 days, $39 fee), Turkish (2 days), Virgin Atlantic (1-2 days, free phone), Singapore (agent discretionary). Affects whether the recommended path is "transfer first then ticket" or "ticket immediately"
  • status-match — when comparing options that include upgrades or elite-only benefits (lounge access, free bags, priority); status changes the real cost of a flight

When to Use

  • "Find me the best way to get from SFO to CDG in August"
  • "Should I pay cash or use points for this flight?"
  • "Compare all options for SFO to NRT business class"
  • Any flight search where the user wants the full picture

Read the full file on GitHub · 214 lines

Changes

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.

  1. 8d ago First seen · 214 lines · 46 tokens per session scan A 73a903f894d5

Subscribe to this mod's changes

compare-flights is a skill published in the GitHub repository borski/travel-hacking-toolkit (653 stars, last pushed 7d ago), licensed MIT. It adds 46 tokens to every session and 3,094 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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