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 johnrogers/claude-swift-engineering --skill hapticsgit clone --depth 1 https://github.com/johnrogers/claude-swift-engineeringWrote 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/johnrogers/claude-swift-engineering/haptics)<a href="https://agentmods.dev/skills/johnrogers/claude-swift-engineering/haptics"><img src="https://agentmods.dev/badge/skills/johnrogers/claude-swift-engineering/haptics.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00047 | $0.00724 |
| Opus 5 | $0.00023 | $0.00362 |
| Sonnet 5 | $0.00009 | $0.00145 |
| Haiku 4.5 | $0.00005 | $0.00072 |
Grade A, and why
haptics 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 — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Haptics
Haptic feedback provides tactile confirmation of user actions and system events. When designed thoughtfully, haptics transform interfaces from functional to delightful.
Overview
Haptics should enhance interactions, not dominate them. The core principle: haptic feedback is like sound design—every haptic should have purpose (confirmation, error, warning), timing (immediate or delayed), and restraint (less is more).
Reference Loading Guide
ALWAYS load reference files if there is even a small chance the content may be required. It's better to have the context than to miss a pattern or make a mistake.
| Reference | Load When |
|---|---|
| UIFeedbackGenerator | Using simple impact/selection/notification haptics |
| Core Haptics | Creating custom patterns with CHHapticEngine |
| AHAP Patterns | Working with Apple Haptic Audio Pattern files |
| Design Principles | Applying Causality, Harmony, Utility framework |
Core Workflow
- Choose complexity level: Simple (UIFeedbackGenerator) vs Custom (Core Haptics)
- For simple haptics: Use UIImpactFeedbackGenerator, UISelectionFeedbackGenerator, or UINotificationFeedbackGenerator
- For custom patterns: Create CHHapticEngine, define CHHapticEvents, build CHHapticPattern
- Prepare before triggering: Call
prepare()to reduce latency - Apply design principles: Ensure Causality (timing), Harmony (multimodal), Utility (meaningful)
System Requirements
- iOS 10+ for UIFeedbackGenerator
- iOS 13+ for Core Haptics (CHHapticEngine)
- iPhone 8+ for Core Haptics hardware support
- Physical device required - haptics cannot be tested in Simulator
Common Mistakes
- Haptic feedback on every action — Every button doesn't need haptics. Reserve haptics for critical confirmations (purchase, delete, settings change). Over-haptics are annoying and drain battery.
What ships with it
4 files 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 · 53 lines · 47 tokens per session scan A 35f30f35eff7
haptics is a skill published in the GitHub repository johnrogers/claude-swift-engineering (228 stars, last pushed 7mo ago), licensed MIT. It adds 47 tokens to every session and 724 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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