Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add rshankras/claude-code-apple-skills --skill lapsed-usergit clone --depth 1 https://github.com/rshankras/claude-code-apple-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rshankras/claude-code-apple-skills/lapsed-user)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/lapsed-user"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/lapsed-user/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/lapsed-user"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/lapsed-user.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00049 | $0.02377 |
| Opus 5 | $0.00024 | $0.01189 |
| Sonnet 5 | $0.00010 | $0.00475 |
| Haiku 4.5 | $0.00005 | $0.00238 |
Grade A, and why
lapsed-user scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 296 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Lapsed User Re-Engagement Generator
Generate production infrastructure for detecting users who haven't opened the app in X days, showing personalized return screens that highlight what they missed, and optionally presenting win-back incentives to recover churned or lapsing users.
When This Skill Activates
Use this skill when the user:
- Asks about "lapsed user" detection or re-engagement
- Wants to handle "returning user" or "inactive user" scenarios
- Mentions "re-engagement" screens or flows
- Asks about "win-back" offers for churned users
- Wants to detect when a "user hasn't opened app" in a while
- Asks about "user retention" or "come back" experiences
Pre-Generation Checks
1. Project Context Detection
- Check Swift version (requires Swift 5.9+)
- Check deployment target (iOS 17+ / macOS 14+ for @Observable)
- Identify source file locations and project structure
2. Existing Engagement Tracking
Search for existing engagement or analytics infrastructure:
Glob: **/*Analytics*.swift, **/*Engagement*.swift, **/*Tracker*.swift, **/*Activity*.swift
Grep: "lastActiveDate" or "UserDefaults" or "scenePhase" or "applicationDidBecomeActive"
If existing tracking found:
- Ask if user wants to integrate with it or build standalone
- If integrating, adapt templates to use existing storage/events
3. Push Notification Setup
Search for existing push notification configuration:
Glob: **/*Notification*.swift, **/*Push*.swift
Grep: "UNUserNotificationCenter" or "UNNotification" or "registerForRemoteNotifications"
If push notifications are configured, offer push-based re-engagement as an option.
4. Conflict Detection
Search for existing lapsed user handling:
Glob: **/*LapsedUser*.swift, **/*WinBack*.swift, **/*ReturnExperience*.swift, **/*Reengag*.swift
Grep: "lapsedUser" or "winBack" or "returnExperience" or "daysInactive"
If existing implementation found:
- Ask if user wants to replace or extend it
- If extending, generate only the missing pieces
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 296 lines · 49 tokens per session scan A d7f57cb29083
lapsed-user is a skill published in the GitHub repository rshankras/claude-code-apple-skills (710 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 2,377 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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