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Preflight Checks

Category: General  ·  Sub-category: general-misc  ·  Last updated:
Reference document describing six pre-flight checks (clean git state, not detached HEAD, gh auth, issue exists and OPEN, remote reachable, duplicate-branch warning) as pure bash exit codes with no LLM calls. Reference only (policy document; consumed by `/flow:start` Phase 0).

From the source SKILL.md

Reference document for the pre-flight policy. The executable bash lives in plugins/flow/commands/start.md (Phase 0) — that is the single source of truth that runs at workflow start. This skill describes what each check enforces and why, so the policy can be reviewed, audited, and extended without untangling shell logic.

What this skill does

Preflight Checks is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/preflight-checks/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Preflight Checks Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/preflight-checks
curl -L https://claudskills.com/skills/preflight-checks/SKILL.md \
  -o ~/.claude/skills/preflight-checks/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/preflight-checks/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/preflight-checks/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\preflight-checks\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
ClaudSkills. (2026). Preflight Checks [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/preflight-checks/
BibTeX
@misc{preflight-checks-2026,
  author    = {ClaudSkills},
  title     = {Preflight Checks [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/preflight-checks/}
}

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

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