This skill guides you through finding feature flags that no longer serve a purpose and removing them safely. The ordering is fixed: clean up the code, wait for that cleanup to deploy, and only then change the flag in PostHog.
Cleaning Up Stale Feature Flags 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/cleaning-up-stale-feature-flags/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user wants to find, audit, or remove unused, fully rolled out, or abandoned feature flags. When the agent can read and edit a repository it performs the code cleanup itself: tested local changes, and one draft PR per flag when the user authorizes publishing.
The Cleaning Up Stale Feature Flags 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 196,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/cleaning-up-stale-feature-flags curl -L https://claudskills.com/skills/cleaning-up-stale-feature-flags/SKILL.md \ -o ~/.claude/skills/cleaning-up-stale-feature-flags/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/cleaning-up-stale-feature-flags/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/cleaning-up-stale-feature-flags/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cleaning-up-stale-feature-flags\SKILL.md on Windows. See the full install guide for step-by-step instructions.
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 →
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.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/cleaning-up-stale-feature-flags/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.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. Cleaning Up Stale Feature Flags 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/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{cleaning-up-stale-feature-flags-2026,
author = {PostHog},
title = {Cleaning Up Stale Feature Flags [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/cleaning-up-stale-feature-flags/}
}Grade A · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 1 of 10 categories (prompt-injection), including a high-severity pattern. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
Browse all Product skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.