round-the-world

round-the-world is a skill for Claude Code from borski/travel-hacking-toolkit. It costs 51 tokens per session (4,904 once invoked), scanned A, original, MIT.

A guide and data set for round-the-world, Circle Pacific, and distance-based airline award tickets. These are reward bookings paid with airline miles or points, and the information covers programs and alliance rules that are still active or were recently discontinued.

In plain words
What is it for?
Checking eligible programs, comparing alliance award products, reviewing historical rules, and calculating route distances for award pricing.
Why use it?
It helps travelers avoid relying on outdated award charts and choose between a true around-the-world ticket and other distance-based options.

Skill for Claude Code

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

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 scripts/calc_distance.py SFO LAX.

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

Good fit Checking eligible programs, comparing alliance award products, reviewing historical rules, and calculating route distances for award pricing.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/borski/travel-hacking-toolkit
agentmods
npx agentmods add skills/borski/travel-hacking-toolkit/round-the-world

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 round-the-world

README.md
[![agentmods](https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/round-the-world/github.svg)](https://agentmods.dev/skills/borski/travel-hacking-toolkit/round-the-world)
Your own site
<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/round-the-world"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/round-the-world/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.

agentmods 80×15 button for round-the-world

Your own site · 80×15
<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/round-the-world"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/round-the-world.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,904 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 229
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00051 $0.04904
Opus 5 $0.00026 $0.02452
Sonnet 5 $0.00010 $0.00981
Haiku 4.5 $0.00005 $0.00490

Measured 10d ago against content hash 9ba6c9d11521, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

round-the-world 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 10d 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/round-the-world/SKILL.md · 306 lines

How it starts

The opening of the file, as written. The whole thing — 306 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Round the World, Circle Pacific, and Distance-Based Awards

The RTW universe is collapsing. Four programs ended in the last 18 months: ANA Star RTW (June 2025), Singapore KrisFlyer Star RTW (May 2024), SkyTeam Go Round (2024-25), Singapore KrisFlyer Pacific Circle (likely 2024-25). What's left is concentrated in Star Alliance, oneworld, and a few regional distance-based programs.

This skill provides:

  • Comprehensive coverage of every active RTW and Circle product
  • Historical charts for discontinued programs (so the agent doesn't get fooled by stale blog posts)
  • Distance-based regional alternatives that often beat RTW pricing for shorter trips
  • Decision rules for picking the right product

Data file: data/rtw-awards.json. Contains 17 programs with confidence markers (VERIFIED / LIKELY) and primary-source citations. Distance helper: scripts/calc_distance.py (haversine, supports cumulative multi-segment routes, with built-in distance-band lookups for Star Alliance / Qantas / oneworld Global Explorer).

Quick Decision Tree

Want to actually circle the globe?
  └→ Want to pay cash? → oneworld Explorer (3-6 continents, online bookable; LIKELY ~$3.6K-$6.9K economy per Upgraded Points 2026; verify on rtw.oneworld.com)
  └→ Want to use miles?
       ├→ Star Alliance RTW (online bookable; Special Business 26k-mile distance band, USD price varies by routing/origin, historically a strong J value)
       ├→ Lufthansa M&M (fixed 195k Y / 400k J / 540k F miles, phone only)
       └→ Qantas oneworld Classic Reward RTW (35k mi cap, 132,400/318,000 Y/J pts)

Want to circle the Pacific Rim only?
  ├→ Star Alliance Circle Pacific (online via member; 22k or 26k mi)
  └→ oneworld Circle Pacific (travel agent only)

Want a multi-carrier oneworld trip but not full RTW?
  ├→ Cathay Asia Miles oneworld multi-carrier (13 distance bands; cheapest J at 60k mi <1000mi)
  ├→ JAL Mileage Bank multi-carrier (10 bands; sweet spot 25k Y / 48k J <4000mi)
  └→ Qantas oneworld Classic (separate from its RTW config)

Just want regional flights cheap?
  ├→ Aeroplan distance-based (NA: 6k Y starting <500mi; Atlantic: 32.5k Y starting <4000mi)
  └→ Iberia Plus Avios (intra-Europe: 3,500 Y under 650mi off-peak)

Read the full file on GitHub · 306 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. 10d ago First seen · 306 lines · 51 tokens per session scan A 9ba6c9d11521

Subscribe to this mod's changes

round-the-world is a skill published in the GitHub repository borski/travel-hacking-toolkit (659 stars, last pushed 2d ago), licensed MIT. It adds 51 tokens to every session and 4,904 once invoked, about $0.0003 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.