Duo Retention

Q: What is a Claude Code skill and how does the Duo Retention 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. Duo Retention is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Content · Sub-category: translation · Last updated: 2026-08-13

type:debug

Duolingo-style retention engineering for any product — habit loops, streaks, leagues, churn diagnostics, day-N drop-off, and the discipline of building a "forever product." Use when the user asks how to keep users coming back, debug churn, design a streak system, time push notifications, run a leaderboard, or shift a product's metric from acquisition to retention. Source the Duolingo Handbook (Take the Long View) and blog data posts; translate every pattern to the user's actual product.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Duolingo's central business bet is that retention compounds and acquisition does not. The handbook frames the company as a "forever product": every decision is judged by long-term retention, not short-term revenue. This skill packages that bet into reusable patterns.

What this skill does

Duo Retention is a community-contributed Claude Code skill in the translation sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/duo-retention/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks how to keep users coming back, debug churn, design a streak system, time push notifications, run a leaderboard, or shift a product's metric from acquisition to retention. Source the Duolingo Handbook (Take the Long View) and blog data posts; translate every pattern to the user's actual product.

Who uses this skill

The Duo Retention Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 184,000+ 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/duo-retention
curl -L https://claudskills.com/skills/duo-retention/SKILL.md \
  -o ~/.claude/skills/duo-retention/SKILL.md

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

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

📱 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 Duo Retention Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/duo-retention/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Duo Retention skill do?

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 Duo Retention skill?

Use Duo Retention when your Claude Code task falls under the Content category — specifically in the translation 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 Duo Retention" or describe the task and let Claude pick). Browse related skills at /category/content/.

What is a Claude Code skill and how does the Duo Retention 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. Duo Retention is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/HKTITAN/signlingo/blob/14e9f2e684f12ebdced926f7a826c7b24e9fddae/.claude/skills/duo-retention/SKILL.md
Author: HKTITAN
Website: https://signlingo.khe.money

Cite this skill

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

APA

HKTITAN. (2026). Duo Retention [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/duo-retention/

BibTeX

@misc{duo-retention-2026,
  author    = {HKTITAN},
  title     = {Duo Retention [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/duo-retention/}
}

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Badge

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Security scan

Grade A · scanned 2026-08-13 — 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 ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/duo-retention/#security)