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.
git clone --depth 1 https://github.com/borski/travel-hacking-toolkitnpx agentmods add skills/borski/travel-hacking-toolkit/flight-search-strategyWrote 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/borski/travel-hacking-toolkit/flight-search-strategy)<a href="https://agentmods.dev/skills/borski/travel-hacking-toolkit/flight-search-strategy"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/flight-search-strategy/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/borski/travel-hacking-toolkit/flight-search-strategy"><img src="https://agentmods.dev/badge/skills/borski/travel-hacking-toolkit/flight-search-strategy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 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 59 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 75 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
- low Tool Misuse · line 59 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
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 | $0.00048 | $0.01616 |
| Opus 5.5 | $0.00019 | $0.00646 |
| Sonnet 5.5 | $0.00010 | $0.00323 |
| Haiku 4.5 | $0.00005 | $0.00162 |
Grade A, and why
flight-search-strategy 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 1mo 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 — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flight Search Strategy
Search ALL Sources for EVERY Flight Search
This is not a pick-one list. Each source returns different results, different prices, and different airlines. Missing a source means missing options. The priority order determines which price to trust when sources disagree, not which sources to skip.
| Priority | Source | Strengths | Blind Spots |
|---|---|---|---|
| 1 | Duffel (skill) | Most accurate cash prices. Real GDS per-fare-class data. Bookable. | No Southwest. No award pricing. Offers expire in 15-30 min. |
| 2 | Ignav (skill) | Fast REST API. Market selection for price arbitrage. Free. | No Southwest. No award pricing. |
| 3 | Google Flights (skill, agent-browser) | Covers ALL airlines including Southwest cash prices. Free. Economy/business comparison. | Prices can be inflated vs GDS. No points pricing. |
| 4 | Skiplagged (MCP) | Hidden city fares. Zero config. | No Southwest. Can be noisy on small markets. |
| 5 | Kiwi.com (MCP) | Virtual interlining (creative cross-airline routings). Zero config. | Returns garbage on small markets. No Southwest. |
| 6 | Seats.aero (skill) | Award flight availability across 25+ programs. The crown jewel for points. | Cached data, not live. No cash prices. No Southwest. |
| 7 | SerpAPI (skill, optional) | Google Hotels search. Destination discovery (Google Travel Explore). | NOT for flights (inflated prices). Hotels and "where should I go?" only. |
| 8 | Southwest (skill, Patchright) | Fare classes, points pricing, Companion Pass. All 4 fare classes, cash + points. | Pre-built Docker image: ghcr.io/borski/sw-fares. Or local Patchright (headed mode). ~20s per search. |
The Standard Flight Search Workflow
Run ALL of these in parallel: Duffel + Ignav + Google Flights + Skiplagged + Kiwi.
Skiplagged and Kiwi are keyless MCP servers — they are available in every properly launched session. Attempt the tool call before ever claiming MCP is unavailable, and never substitute improvised browser scraping for these sources (see fallback-and-resilience).
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.
- 1mo ago First seen · 114 lines · 48 tokens per session scan A 5c0be488cebe
flight-search-strategy is a skill published in the GitHub repository borski/travel-hacking-toolkit (712 stars, last pushed 7d ago), licensed MIT. It adds 48 tokens to every session and 1,616 once invoked, about $0.0002 per session on Opus 5.5. 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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openspec-bulk-archive-change
Archive multiple completed OpenSpec changes at once. Use when archiving several parallel changes. Also use for a plural archive request - "openspec bulk-archive", "opsx bulk-archive", "openspec archive all", or "openspec archive these changes".
acceptance-test-authoring
Use when creating or modifying acceptance tests, configuring cucumber-js or behave runners, writing or refactoring step definitions, linting executable Gherkin specs, choosing an acceptance stack, or implementing OpenSpec tasks that involve acceptance tests.
gherkin-authoring
Use when drafting, reviewing, or improving Gherkin, Cucumber scenarios, BDD acceptance criteria, feature examples, Scenario Outlines, Backgrounds, Rules, Doc Strings, Data Tables, tags, or Gherkin embedded in Markdown.
openspec-bulk-apply-change
Use when multiple active OpenSpec changes should be applied concurrently in isolated worktrees with delegated verification and no merge.
architectural-decision-records
Use when documenting, drafting, reviewing, or updating architectural decisions, ADRs, decision logs, tradeoffs, rationale, consequences, alternatives, or architecture decision history.
adversarial-authoring
Use when rules or instructions mention "adversarial-authoring", "adversarial authoring", "must use adversarial-authoring skill", "model council", "cross-model review", or "mixture of models"; coordinates adversarial authoring and review subagents and records council notes.