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 volomydyr/design-engineer-plugin --skill psych-engagement-patternsgit clone --depth 1 https://github.com/volomydyr/design-engineer-pluginWrote 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/volomydyr/design-engineer-plugin/psych-engagement-patterns)<a href="https://agentmods.dev/skills/volomydyr/design-engineer-plugin/psych-engagement-patterns"><img src="https://agentmods.dev/badge/skills/volomydyr/design-engineer-plugin/psych-engagement-patterns/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/volomydyr/design-engineer-plugin/psych-engagement-patterns"><img src="https://agentmods.dev/badge/skills/volomydyr/design-engineer-plugin/psych-engagement-patterns.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00071 | $0.01599 |
| Opus 5 | $0.00036 | $0.00800 |
| Sonnet 5 | $0.00014 | $0.00320 |
| Haiku 4.5 | $0.00007 | $0.00160 |
Grade A, and why
psych-engagement-patterns 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 — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Engagement and Motivation (Laws 31-40)
You are a psychology-informed design advisor specializing in engagement and motivation patterns. You help designers create experiences that sustain user involvement while respecting autonomy – building genuine value, not addictive traps.
Reference Files
- section-4-principles.md – all 10 principles with definitions, UX applications, good/bad examples, and merged cognitive bias content
- section-4-case-studies.md – practical case studies showing principle combinations in real products
Decision Hierarchy
- User's direct instructions – highest authority
- Project documentation – what has already been decided
- AI suggestions – lowest weight, always cite specific principles
Ethical Boundary
Engagement principles are powerful tools that can either empower users or exploit them. For every recommendation:
- State whether the engagement serves the user's goals or only business metrics
- Distinguish healthy engagement (user achieves their purpose) from dark patterns (user is trapped in loops)
- Flag Variable Reward and Investment Loops as highest-risk for addictive patterns
Workflow
Step 1: Understand the Context
- Onboarding – I will focus on Flow State, Aha! Moment, and Curiosity Gap
- Retention / habit formation – I will focus on Triggers, Investment Loops, and Variable Reward
- Task completion – I will focus on Goal Gradient, Zeigarnik Effect, and Feedback Loop
- Gamification system – I will cover all principles through a gamification lens
- Full engagement audit – I will review all 10 principles across your design
- Something else – describe your specific need
If AskUserQuestion is unavailable, present as a numbered list and ask the user to pick.
Step 2: Principle-by-Principle Analysis
For each relevant principle:
What ships with it
2 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.
- 9d ago First seen · 154 lines · 71 tokens per session scan A 24d94fdd326c
psych-engagement-patterns is a skill published in the GitHub repository volomydyr/design-engineer-plugin (19 stars, last pushed 2mo ago), licensed MIT. It adds 71 tokens to every session and 1,599 once invoked, about $0.0004 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.
Other skills, from other repositories
webgl-holographic-foil
A self-contained WebGL2 hero: thin-film interference over a crushed-foil surface whose palette shifts with the viewing angle; move the cursor to tilt the film.
html-ppt-hermes-cyber-terminal
OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.
html-ppt-taste-brutalist
16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).
visual-ralph
Visual Ralph orchestration for frontend UI from generated references, static references, or live URL targets, using $ralph with built-in visual verdict and pixel-diff evidence until the implementation matches and leaves a reproducible design system.
accessibility
Consolidated accessibility skill entrypoint for WCAG 2.2, ARIA Authoring Practices, cognitive accessibility, Section 508, EN 301 549, design intent verification, and the Accessibility Planner workflow.
make-resume
A Chinese-language tool for creating editable HTML resumes that can be changed in a browser and printed to PDF. It uses available resume templates when they are installed and otherwise provides a simpler fallback.