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 agentmods add skills/felipeslo/opencode-kit/mobile-gamesnpx skills add felipeslo/opencode-kit --skill mobile-gamesgit clone --depth 1 https://github.com/felipeslo/opencode-kitWhat 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 | $0.00018 | $0.00507 |
| Opus 5 | $0.00009 | $0.00253 |
| Sonnet 5 | $0.00004 | $0.00101 |
| Haiku 4.5 | $0.00002 | $0.00051 |
Grade A, and why
mobile-games 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 yesterday.
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.
This is a copy
94% identical to mobile-games — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mobile Game Development
Platform constraints and optimization principles.
1. Platform Considerations
Key Constraints
| Constraint | Strategy |
|---|---|
| Touch input | Large hit areas, gestures |
| Battery | Limit CPU/GPU usage |
| Thermal | Throttle when hot |
| Screen size | Responsive UI |
| Interruptions | Pause on background |
2. Touch Input Principles
Touch vs Controller
| Touch | Desktop/Console |
|---|---|
| Imprecise | Precise |
| Occludes screen | No occlusion |
| Limited buttons | Many buttons |
| Gestures available | Buttons/sticks |
Best Practices
- Minimum touch target: 44x44 points
- Visual feedback on touch
- Avoid precise timing requirements
- Support both portrait and landscape
3. Performance Targets
Thermal Management
| Action | Trigger |
|---|---|
| Reduce quality | Device warm |
| Limit FPS | Device hot |
| Pause effects | Critical temp |
Battery Optimization
- 30 FPS often sufficient
- Sleep when paused
- Minimize GPS/network
- Dark mode saves OLED battery
4. App Store Requirements
iOS (App Store)
| Requirement | Note |
|---|---|
| Privacy labels | Required |
| Account deletion | If account creation exists |
| Screenshots | For all device sizes |
Android (Google Play)
| Requirement | Note |
|---|---|
| Target API | Current year's SDK |
| 64-bit | Required |
| App bundles | Recommended |
5. Monetization Models
| Model | Best For |
|---|---|
| Premium | Quality games, loyal audience |
| Free + IAP | Casual, progression-based |
| Ads | Hyper-casual, high volume |
| Subscription | Content updates, multiplayer |
6. Anti-Patterns
| ❌ Don't | ✅ Do |
|---|---|
| Desktop controls on mobile | Design for touch |
| Ignore battery drain | Monitor thermals |
| Force landscape | Support player preference |
| Always-on network | Cache and sync |
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.
- yesterday First seen · 108 lines · 18 tokens per session scan A 8d46ae56c2fc
mobile-games is a skill published in the GitHub repository felipeslo/opencode-kit (2 stars, last pushed 5mo ago), licensed MIT. It adds 18 tokens to every session and 507 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to mobile-games, differing in 1 line, and is treated as a copy.
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