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Flag Prerequisites

Category: Product  ·  Sub-category: product-misc  ·  Last updated:
Add, remove, or inspect feature-level prerequisites on a GrowthBook feature flag. Use when the user says "gate flag X on flag Y being enabled", "add a prerequisite", "flag X should only evaluate if flag Y is on", "remove the prerequisite on flag X", "what does this flag depend on", or "this flag should require the new-checkout flag to be true first". Feature-level prerequisites gate the entire flag — when the prerequisite flag is off, this flag returns its default value for every user. The prerequisite must be a boolean flag. For prerequisites scoped to a single rule (not the whole flag), use flag-targeting. For tracing the full dependency graph, use flag-graph.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Add, remove, or inspect feature-level prerequisites on a GrowthBook feature flag. A feature-level prerequisite is a boolean gate: if the specified prerequisite flag is off for a user, the current flag skips all its rules and returns its defaultValue for that user.

What this skill does

Flag Prerequisites is a community-contributed Claude Code skill in the product-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/flag-prerequisites/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user says "gate flag X on flag Y being enabled", "add a prerequisite", "flag X should only evaluate if flag Y is on", "remove the prerequisite on flag X", "what does this flag depend on", or "this flag should require the new-checkout flag to be true first". Feature-level prerequisites gate the entire flag — when the prerequisite flag is off, this flag returns its default value for every user.

Who uses this skill

The Flag Prerequisites Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ 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/flag-prerequisites
curl -L https://claudskills.com/skills/flag-prerequisites/SKILL.md \
  -o ~/.claude/skills/flag-prerequisites/SKILL.md

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

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

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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

Frequently asked questions

How do I install the Flag Prerequisites Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/flag-prerequisites/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Flag Prerequisites skill do?
Add, remove, or inspect feature-level prerequisites on a GrowthBook feature flag. Use when the user says "gate flag X on flag Y being enabled", "add a prerequisite", "flag X should only evaluate if flag Y is on", "remove the prerequisite on flag X", "what does this flag depend on", or "this flag should require the new-checkout flag to be true first". Feature-level prerequisites gate the entire flag — when the prerequisite flag is off, this flag returns its default value for every user. The prerequisite must be a boolean flag. For prerequisites scoped to a single rule (not the whole flag), use flag-targeting. For tracing the full dependency graph, use flag-graph.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Flag Prerequisites skill?
Use Flag Prerequisites when your Claude Code task falls under the Product category — specifically in the product misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Flag Prerequisites" or describe the task and let Claude pick). Browse related skills at /category/product/.
What is a Claude Code skill and how does the Flag Prerequisites skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Flag Prerequisites is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

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

APA
growthbook. (2026). Flag Prerequisites [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/flag-prerequisites/
BibTeX
@misc{flag-prerequisites-2026,
  author    = {growthbook},
  title     = {Flag Prerequisites [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/flag-prerequisites/}
}

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Security scan

Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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