Code Review
flutter/flutter
Performs a comprehensive, multi-step code review of pull requests or local code changes, using iterative refinement (generation, critique, synthesis) to ensure high-quality, actionable feedback.
IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability.
MITAuto-check passed
Install Cabin Codes
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install borski/travel-hacking-toolkit cabin-codes --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .claude/skills/cabin-codes && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .claude/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install borski/travel-hacking-toolkit cabin-codes --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .agents/skills/cabin-codes && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .agents/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install borski/travel-hacking-toolkit cabin-codes --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .cursor/skills/cabin-codes && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .cursor/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/borski/travel-hacking-toolkit.git --path plugins/travel-hacking-toolkit/skills/cabin-codes--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install borski/travel-hacking-toolkit cabin-codes --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .gemini/skills/cabin-codes && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .gemini/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install borski/travel-hacking-toolkit cabin-codesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .github/skills/cabin-codes && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .github/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install borski/travel-hacking-toolkit cabin-codes --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/borski/travel-hacking-toolkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/travel-hacking-toolkit/skills/cabin-codes .opencode/skills/cabin-codes && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cabin-codes" agent skill from https://github.com/borski/travel-hacking-toolkit/tree/main/plugins/travel-hacking-toolkit/skills/cabin-codes into .opencode/skills/cabin-codes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cabin-codes", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
cabin-codes- GitHub stars
- 688
- Token cost
- ~450 tokens
- SKILL.md length
- 206 words
- Files
- 1
- Skills in repo
- 46
- Repo updated
- First seen
- Licence
- MIT
At a glance
IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability.
- SKILL.md covers Fare Class Codes for Saver… and Why This Matters
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Cabin Codes is an agent skill from borski/travel-hacking-toolkit. IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability.
Its SKILL.md is about 450 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: AI-powered travel hacking and search with cash, points, miles, and award flights. Drop-in skills and MCP servers for Claude, Codex, and OpenCode. The licence is MIT.
Example prompts
- “/cabin-codes”
What it can do on your machine
Read from SKILL.md and the folder at commit db82131. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Cabin Codes loads about 450 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 206 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from borski/travel-hacking-toolkit at commit db82131, republished under its MIT licence (© borski). 206 words, ~450 tokens.
Download SKILL.mdSave it as
.claude/skills/cabin-codes/SKILL.md (or your agent's skills folder).- name
- cabin-codes
- description
- IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability.
- category
- reference
- summary
- IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for partner-bookable inventory.
Cabin Codes
When reading Seats.aero results or discussing award inventory, these cabin codes appear:
| Code | Cabin | Notes |
|---|---|---|
| F | First Class | Includes true first class suites |
| J | Business Class | Lie-flat seats on long-haul |
| W | Premium Economy | Also sometimes coded as "P" |
| Y | Economy | Standard seating |
Fare Class Codes for Saver Awards
These are critical for partner bookings. If you see these fare codes available on united.com (or equivalent), the flight is bookable through partner programs at their (often lower) rates.
| Code | Meaning | Programs That Use It |
|---|---|---|
| X | Economy Saver | United MileagePlus, bookable through partners |
| I | Business Saver | United MileagePlus, bookable through Turkish M&S and others |
| O | First Saver | United MileagePlus |
Why This Matters
Partner award rates are often dramatically lower than the operating airline's own rates. United business saver (I class) bookable through Turkish Miles&Smiles is a classic example: a route that costs 80,000 United miles might only cost 45,000 Turkish miles. But Turkish (and other partners) only sees the saver inventory. If only "standard" or "everyday" fares show on united.com, partners cannot book that flight.
When checking award availability for a flight you found on a partner program (Turkish, Aeroplan, ANA, etc.), verify the saver class is open on the operating airline's site before transferring points.
© borski, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in plugins/travel-hacking-toolkit/skills/cabin-codes of borski/travel-hacking-toolkit.
Open the folder on GitHubat commit db82131
Compare with similar skills
Cabin Codes next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cabin Codes this skillborski/travel-hacking-toolkit | 688 | — | ~450 | Automated safety check: Pass | MIT | |
| Code Reviewflutter/flutter | 179k | — | ~1.4k | Automated safety check: Pass | BSD-3-Clause | |
| Simplify CodeNousResearch/hermes-agent | 252k | — | ~3.7k | Automated safety check: Pass | MIT | |
| Architectural Code ReviewDonchitos/Claude-Code-Game-Studios | 26k | — | ~3.5k | Automated safety check: Pass | MIT | |
| Coding Agentopenclaw/openclaw | 392k | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Review Codepenpot/penpot | 61k | — | ~796 | Automated safety check: Pass | MPL-2.0 |
Similar skills
Simplify Code
NousResearch/hermes-agent
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Architectural Code Review
Donchitos/Claude-Code-Game-Studios
Performs an architectural review of code against coding standards, SOLID, testability and performance, and reports no verdict when the inputs are missing.
Coding Agent
openclaw/openclaw
Delegate coding work to Codex, Claude Code, or OpenCode as background workers; not simple edits or read-only code lookup.
Review Code
penpot/penpot
Code review flow — review a diff, PR, or code change, delegating the review to a subagent that follows the code-review-criteria skill.
- Official
SQL Code Review
github/awesome-copilot
Universal SQL code review assistant that performs comprehensive security, maintainability, and code quality analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle).
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Questions about Cabin Codes
What does Cabin Codes do?
IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability. Cabin Codes is an agent skill from borski/travel-hacking-toolkit. IATA cabin codes (F/J/W/Y) and saver fare class codes (X/I/O) for reading award inventory and determining partner-bookable availability.
How do I install Cabin Codes in Claude Code?
Run `npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a claude-code`. Or copy the skill folder (plugins/travel-hacking-toolkit/skills/cabin-codes in borski/travel-hacking-toolkit) into .claude/skills/cabin-codes in your project. Claude Code loads it when a task matches its description.
How do I install Cabin Codes in Codex?
Run `npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a codex`. Or copy the skill folder (plugins/travel-hacking-toolkit/skills/cabin-codes in borski/travel-hacking-toolkit) into .agents/skills/cabin-codes in your project. Codex loads it when a task matches its description.
Can I use Cabin Codes in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add borski/travel-hacking-toolkit --skill cabin-codes -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cabin-codes, .gemini/skills/cabin-codes, .github/skills/cabin-codes and .opencode/skills/cabin-codes in your project.
What does Cabin Codes need to run?
SKILL.md names no scripts, command-line tools or credentials: Cabin Codes is instructions for the agent only.
Does Cabin Codes access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Cabin Codes safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Cabin Codes use?
Cabin Codes is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Cabin Codes use?
About 450 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Cabin Codes?
Skills that share tags, products or a category with Cabin Codes: Code Review (flutter/flutter, 179k stars), Simplify Code (NousResearch/hermes-agent, 252k stars), Architectural Code Review (Donchitos/Claude-Code-Game-Studios, 26k stars) and Coding Agent (openclaw/openclaw, 392k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cabin Codes?
borski (a GitHub user) maintains it in borski/travel-hacking-toolkit, which has 688 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 5, 2026.
Source: borski/travel-hacking-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.