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Lessons Learned · borski | DecimalAI

Registry skillby borski

Lessons Learned

borski/lessons-learned

Source borski/travel-hacking-toolkit ↗License MIT

Mandatory pre-flight-search reference. Contains the Seats.aero workflow (pull ALL programs first), source accuracy hierarchy, Southwest/Companion Pass specifics, small-market caveats, and Duffel limitations.

SkillScore77Maintained

Automatic

Personal Assistant pack

Last verified 8/16/2026

What it changes

Passed 17 of 22 test cases with the skill, and 9 of 22 without it.

Without skill41%

With skill77%

Checks it passed that the model alone missed

Inquires about minimum and maximum layover time preferences.
Identifies Duffel's API rate limit as 60 requests per 60 seconds.
States that Duffel flight offers must not be cached across sessions.

and 8 more in the full report

8 fixed9 passed either way5 still failing0 broke

Pass-rate lift: +36 pp
Tokens: +74%
Agent turns: 0%
Response time: -14%

Model gemini-3.6-flashMeasured 8/16/2026v117 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/borski-lessons-learned/SKILL.md https://app.decimal.ai/s/borski-lessons-learned/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add borski-lessons-learned, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/borski-lessons-learned/ and pins it in .decimal/skills.lock

decimalai skills add borski-lessons-learned

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/borski-lessons-learned/SKILL.md https://app.decimal.ai/s/borski-lessons-learned/SKILL.md

Raw file: /s/borski-lessons-learned/SKILL.md ↗ · machine-readable summary at /s/borski-lessons-learned.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 8

Prompt

My local offline award chart reference file indicates that Singapore Airlines awards cannot be booked via Air Canada Aeroplan, but I am looking directly at bookable award inventory on air-canada.com right now. Should I trust my local reference file or the live website?

What was checked, without and with the skill
Checked	Without skill	With skill
Recommends treating the live airline booking website as the authoritative source of truth over offline data files.	Passed	Passed
Recommends updating the local reference data file to match verified live availability.	Missed	Passed

case-05 · gemini-3.6-flash · 8/16/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md98 linessingle file

Lessons Learned

Hard-won knowledge from actual searches. Reference these before making the same mistakes.

Seats.aero: Search ALL Sources, Show ALL Results

When searching Seats.aero, NEVER filter by source on the initial search. Always pull ALL programs first.

The Mandatory Workflow

For any route:

Search Seats.aero with NO source filter. Pull ALL programs. Show full results sorted by cheapest.
For EVERY program in results, trace the full reachability chain: a. Direct balance? (Check AwardWallet if connected) b. Transfer path? (Check data/transfer-partners.json for EVERY currency: Amex MR, Chase UR, Bilt, Capital One) c. Alliance chain? Identify the operating airline's alliance (data/alliances.json), then find ALL programs in that alliance or with bilateral partnerships (data/partner-awards.json), then check which of THOSE programs are reachable via transfer. d. Cross-alliance? Check data/partner-awards.json cross_alliance_highlights and bilateral partners.
For reachable programs with NO cached Seats.aero data, check the program's website directly (airfrance.com, united.com, etc.)
Present the COMPLETE picture: every option, reachable or not, with the transfer chain spelled out.
Only THEN compare award vs cash.

Common Failure Mode

Seeing an airline in results, checking one or two obvious programs, declaring awards "unreachable" or "bad value," and recommending cash. You MUST trace every possible chain through alliances and bilateral partnerships. If the operating airline is in an alliance, EVERY program that books that alliance is a potential path.

"No Cached Availability" Is Not the Final Word

It means Seats.aero hasn't scraped it recently. When a reachable program shows no cached results, search the airline's website directly before declaring awards dead.

Never Trust Data Files Over Reality

Data files are reference material, not gospel. Airline partnerships change constantly. When a user says a booking path works that your data doesn't show, verify on the actual booking website FIRST before pushing back. The website is the source of truth. Your files are a cache. If the data file disagrees with reality, update the data file.

Source Accuracy Hierarchy

Duffel > Airline website > SerpAPI > Skiplagged/Kiwi

Duffel returns real GDS prices per fare class. These are bookable. Tested: Duffel showed $271 basic / $325 main. SerpAPI showed $541 for the same flight. The gap was consistent across multiple itineraries.
SerpAPI (Google Flights) inflates prices. Google Flights often shows "main cabin" or bundled fares, not the cheapest bookable fare class. Useful for Google Hotels and destination discovery, but do not trust it as the sole source for flight cash prices.

Track record

Benchmark

17 / 22

test cases passed, vs 9 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

borski / travel-hacking-toolkit

plugins/travel-hacking-toolkit/skills/lessons-learned/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Lessons Learned

Seats.aero: Search ALL Sources, Show ALL Results

The Mandatory Workflow

Common Failure Mode

"No Cached Availability" Is Not the Final Word

Never Trust Data Files Over Reality

Source Accuracy Hierarchy

Track record

Benchmark

Adoption

SkillSafety

Source

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