A search tool for the American Express travel portal. It checks flight and hotel cash prices, Membership Rewards points prices, selected discounts, and Fine Hotels + Resorts or The Hotel Collection benefits.

Use it to compare portal prices, find International Airline Program fares, and check eligible hotel benefits.

It lets you compare paying through Amex with paying cash or transferring points to an airline program. It finds options without completing the purchase.

amex-travel — Skill for Claude Code by borski

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 amex-travel

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/amex-travel/github.svg)](https://agentmods.dev/skills/borski/travel-hacking-toolkit/amex-travel)

Your own site

<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/amex-travel"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/amex-travel/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/amex-travel"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/amex-travel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,064 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: 5 findings, 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 MCP Rug Pull · line 26
Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Fix: Pin the image: image:tag or image@sha256:abc123
medium MCP Rug Pull · line 58
Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Fix: Pin the image: image:tag or image@sha256:abc123
medium MCP Rug Pull · line 72
Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Fix: Pin the image: image:tag or image@sha256:abc123
medium Rogue Agent · line 105
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium MCP Rug Pull · line 121
Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Fix: Pin the image: image:tag or image@sha256:abc123

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.

Model	Per session	Once invoked
Fable 5.1	$0.00047	$0.03064
Opus 5	$0.00023	$0.01532
Sonnet 5	$0.00009	$0.00613
Haiku 4.5	$0.00005	$0.00306

Measured 12d ago against content hash 02bb0723e601, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

amex-travel 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 12d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/refresh_login.py, scripts/search_flights.py, tests/test_search_flights.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/amex-travel/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Amex Travel Portal Search

Search the American Express travel portal for flights and hotels via Patchright. Returns cash prices, MR points pricing, International Airline Program (IAP) discounts, and Fine Hotels & Resorts / The Hotel Collection benefits.

Requires Patchright (undetected Playwright fork). Amex blocks standard Playwright and agent-browser.

Must run headed (headless=False). Amex detects headless browsers. On macOS, a Chrome window briefly appears. For background operation, use Docker.

Prerequisites

pip install patchright && patchright install chromium

Or use Docker (no local install needed):

docker pull ghcr.io/borski/amex-travel:latest
# or build locally:
docker build -t amex-travel skills/amex-travel/

When to Use

Compare Amex portal MR pricing against cash and award prices
Find IAP (International Airline Program) discounted fares on Platinum
Find FHR and THC hotels with benefits ($100 credit, breakfast, upgrade)
Compare portal redemption value against transfer-to-airline value

When NOT to Use

Completing purchases. Find flights and hotels only. Do not book.
Non-Platinum cards. IAP fares and FHR benefits require the Platinum Card.

Usage

Flight Search

# Local (opens a Chrome window briefly)
python3 scripts/search_flights.py --origin SFO --dest CDG --depart 2026-08-11

# Round-trip business
python3 scripts/search_flights.py --origin SFO --dest CDG --depart 2026-08-11 --return 2026-09-02 --cabin business

# JSON output
python3 scripts/search_flights.py --origin SFO --dest CDG --depart 2026-08-11 --json

# Docker
docker run --rm \
    -v ~/.amex-travel-profiles:/profiles \
    -e AMEX_USERNAME -e AMEX_PASSWORD \
    amex-travel script /app/search_flights.py \
    --origin SFO --dest CDG --depart 2026-08-11 --cabin business --json

Hotel Search

# Local
python3 scripts/search_flights.py --hotel --dest "Oslo" --checkin 2026-08-13 --checkout 2026-08-15

# Docker
docker run --rm \
    -v ~/.amex-travel-profiles:/profiles \
    -e AMEX_USERNAME -e AMEX_PASSWORD \
    amex-travel script /app/search_flights.py \
    --hotel --dest "Oslo" --checkin 2026-08-13 --checkout 2026-08-15 --json

Read the full file on GitHub · 238 lines

Files

What ships with it

4 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.

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.

12d ago First seen · 238 lines · 47 tokens per session scan A 02bb0723e601

Subscribe to this mod's changes

amex-travel is a skill published in the GitHub repository borski/travel-hacking-toolkit (659 stars, last pushed 4d ago), licensed MIT. It adds 47 tokens to every session and 3,064 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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