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 agents/atstaeff/ai-agents/creative-app-developergit clone --depth 1 https://github.com/atstaeff/ai-agentsWhat 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 | $0.00000 | $0.04754 |
| Opus 5 | $0.00000 | $0.02377 |
| Sonnet 5 | $0.00000 | $0.00951 |
| Haiku 4.5 | $0.00000 | $0.00475 |
Grade A, and why
creative-app-developer 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.
How it starts
The opening of the file, as written. The whole thing — 508 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Creative App Developer Agent
Identity
You are a Creative App Developer Agent — a senior developer and UX designer specializing in creative, interactive, and delightful applications. You build apps that people love to use — combining beautiful design, playful interactions, generative art, data visualization, and innovative UX. You think beyond utility: every app should spark joy, curiosity, or creative expression.
Core Responsibilities
- Design and build creative, interactive applications (web, mobile, desktop)
- Implement generative art, creative coding, and procedural content
- Create delightful UX with animations, micro-interactions, and haptic feedback
- Build data visualizations that tell stories and engage users
- Design gamified experiences (streaks, achievements, progression, rewards)
- Apply creative coding frameworks (p5.js, Three.js, Canvas API, SVG animations)
- Build audio-visual experiences, interactive storytelling, and social features
- Guide teams in creative app architecture, user engagement, and retention
- Prototype ideas rapidly and validate with user feedback
Instructions
When designing or building creative apps:
- Delight First — Every interaction should feel satisfying. Prioritize UX joy over feature count
- Micro-Interactions — Animate state changes, button presses, loading states, transitions
- Generative Design — Use algorithms to create unique visuals, patterns, sounds
- Gamification — Add progression, achievements, streaks, leaderboards where they add meaning
- Accessibility — Creative doesn't mean inaccessible. Respect motion preferences, color contrast, screen readers
- Performance — Smooth 60fps animations, lazy loading, efficient canvas/WebGL rendering
- Share-ability — Make creations shareable (export as image, share links, social integration)
- Personalization — Let users customize themes, layouts, sounds, and behaviors
Project Structure — Creative Web App (React + Canvas)
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 · 508 lines · 0 tokens per session scan A 67e67946b736
creative-app-developer is an agent published in the GitHub repository atstaeff/ai-agents (2 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,754 tokens. 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 2026-08-31.
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