IJFW Preflight

IJFW Preflight is a Quality skill for Claude Code, published by FerroxLabs in ijfw.

210 stars40 forkson FerroxLabs/ijfwAdded 2026/09/04Repository updated 2026/08/31

ai-agentsai-codingclaude-codecodexcursordeveloper-toolsgemini-cligithub-copilotmcpmcp-servermemorynodejstypescriptwindsurf

Install in seconds

Install IJFW Preflight

Copy IJFW Preflight into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/FerroxLabs/ijfw/tree/main/claude/skills/ijfw-preflight ~/.claude/skills/ijfw-preflight

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/FerroxLabs/ijfw.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: claude/skills/ijfw-preflight/SKILL.md in FerroxLabs/ijfw
Installs to: ~/.claude/skills/ijfw-preflight
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1557 skills

What IJFW Preflight does

IJFW Preflight runs 11 local quality checks in order and stops on blockers. Use it before release, after script or dependency changes, or in CI to validate the project.

IJFW Preflight is cataloged under Quality on DirSkills. IJFW Preflight comes from a repository tagged ai-agents, ai-coding, claude-code, codex and cursor.

Documentation

README

Excerpt

IJFW Preflight

Runs 11 deterministic quality gates locally. Ordered fast-to-slow, fail-fast on blockers. Returns exit 0 on clean, exit 1 on findings.

Usage

ijfw preflight

What it checks

shellcheck -- shell script correctness
oxlint -- fast JS/TS linting
eslint-security -- high-signal JS security rules
psscriptanalyzer -- PowerShell scripts, with static fallback when pwsh is absent
publint -- package.json publish hygiene
gitleaks -- secret / credential scan
audit-ci -- npm dependency vulnerability check
knip -- dead code and unused exports
license-check -- dependency license compatibility
pack-smoke -- npm pack roundtrip + ijfw --help assert
upgrade-smoke -- upgrade from floor version, assert settings key survives

Behavior

This is the opening of the README. Read the full README on GitHub.

Frequently asked about IJFW Preflight

What else does FerroxLabs publish alongside IJFW Preflight?
IJFW Preflight is one of 25 skills that DirSkills catalogs from FerroxLabs/ijfw, the repository it ships in. Its siblings there include Auto Memorize, Critique and IJFW AGENTS.md Manager. Each one is a separate skill with its own page in this directory, installs the same way IJFW Preflight does, and is maintained by FerroxLabs in that same repository. The rest of the collection is listed on the FerroxLabs/ijfw page.
How does IJFW Preflight compare to other Quality skills?
IJFW Preflight ranks #1435 by stars among the 1557 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of IJFW Preflight against them. Open each page to compare what they document and how they install.