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 milestone-celebrationgit 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/milestone-celebration)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/milestone-celebration"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/milestone-celebration/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/milestone-celebration"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/milestone-celebration.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 | $0.00057 | $0.02873 |
| Opus 5 | $0.00028 | $0.01437 |
| Sonnet 5 | $0.00011 | $0.00575 |
| Haiku 4.5 | $0.00006 | $0.00287 |
Grade A, and why
milestone-celebration 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 7d 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 — 308 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Milestone Celebration Generator
Generate a production milestone celebration system with confetti particle animations via CAEmitterLayer, achievement badge views with locked/unlocked states, a celebration overlay with spring animations, haptic feedback, and optional shareable achievement cards — all triggered automatically when users hit key thresholds.
When This Skill Activates
Use this skill when the user:
- Asks to "add celebrations" or "celebrate achievements"
- Wants "confetti animation" or "particle effects for milestones"
- Mentions "achievement badges" or "badge unlock animation"
- Asks about "milestone rewards" or "progress milestones"
- Wants to "celebrate achievement" or "trigger celebration on threshold"
- Asks about "level-up animation" or "gamification celebrations"
Pre-Generation Checks
1. Project Context Detection
- Check Swift version (requires Swift 5.9+)
- Check deployment target (iOS 17+ / macOS 14+ for
@Observable, spring animations,sensoryFeedback) - Check for
UIKitavailability (iOS —CAEmitterLayerfor confetti, haptics) - Identify source file locations
2. Conflict Detection
Search for existing celebration/animation code:
Glob: **/*Confetti*.swift, **/*Celebration*.swift, **/*Achievement*.swift, **/*Milestone*.swift, **/*Badge*.swift
Grep: "CAEmitterLayer" or "CAEmitterCell" or "UINotificationFeedbackGenerator" or "confetti" or "celebration"
If existing celebration or gamification library found (e.g., custom confetti, third-party particle libraries):
- Ask if user wants to replace or integrate with it
- If keeping, advise on best practices instead of generating
3. Platform Detection
Determine if generating for iOS (UIKit-based confetti + haptics) or macOS (Core Animation confetti, no haptics) or both (cross-platform with feature gates).
Configuration Questions
Ask user via AskUserQuestion:
- Celebration type? (multi-select)
- Confetti burst (full-screen particle animation)
- Badge unlock (icon reveal with glow animation)
- Level-up (progress ring fill + title transition)
- Custom (user defines their own celebration style)
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.
- 7d ago First seen · 308 lines · 57 tokens per session scan A ca3c599df330
milestone-celebration is a skill published in the GitHub repository rshankras/claude-code-apple-skills (719 stars, last pushed 1mo ago), licensed MIT. It adds 57 tokens to every session and 2,873 once invoked, about $0.0003 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 2026-09-03.
Other skills, from other repositories
appshot-images
Generate App Store and Google Play screenshot designs. Use when the user wants to create store listing images, screenshot mockups, or promotional graphics for a mobile app. Builds on appshot-core foundation.
appshot-videos
Generate App Store / Google Play preview videos using Remotion. Scans the target app's codebase, proposes custom scenes, and writes bespoke .tsx scene files using shared animation primitives. Mobile apps only (iOS/Android). Use when the user wants to create a demo video, app preview, promo video, or marketing video…
youtube-to-bookplayer
Download YouTube audio and push to BookPlayer on iPhone via USB. TRIGGERS - youtube audio, bookplayer, download youtube.
app-preview-video
When the user wants to plan, script, produce, or optimize App Store Preview videos or Google Play promo videos — the autoplay videos that show in App Store/Play Store search and product pages. Use when the user mentions "App Preview", "preview video", "app store video", "promo video", "Play Store video", "video poster…
image-crop-rotate
Image processing skill for cropping images to 50% from center and rotating them 90 degrees clockwise. This skill should be used when users request image cropping to center, image rotation, or both operations combined on image files.
android-development
Android development with Kotlin, Jetpack Compose, and modern Android architecture. Use when building Android apps, implementing Material Design, or following Android best practices.