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Agent Skill

Hooked UX skill

hooked-uxwondelai/skillsplugins/ux-design/skills/hooked-ux/SKILL.md

Design habit-forming product loops using the Hook Model (Trigger, Action, Variable Reward, Investment). Use when the user mentions "users arent coming back", "habit formation", "engagement loops", "habit zone", or "the manipulation matrix". Also trigger when designing notification or re-engagement strategies, building streaks or progress systems, or analyzing why users stop after signup. Covers ethics evaluation and onboarding for habits. For friction reduction and B=MAP, see improve-retention. For viral sharing, see contagious.

2.5kMIT

always on

109 tokname + description

once used

2,837 tokSKILL.md body

bundled files

758 KB

repo stars

2.5kGitHub

Install the Hooked UX skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/wondelai/skills --skill hooked-ux

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/wondelai/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -R /tmp/skills/plugins/ux-design/skills/hooked-ux ~/.claude/skills/hooked-ux

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description109 tok
When the agent uses itThe SKILL.md instructions2,837 tok
Only if opened7 bundled files (58 KB)varies

Until it is used, hooked-ux costs about 13× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from wondelai/skills would load 24,406 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Hook Model Framework
  • Core Principle
  • Scoring
  • The Four Phases
  • 1. Trigger
  • 2. Action
  • 3. Variable Reward
  • 4. Investment
  • The Habit Zone
  • Habit Testing
  • The Manipulation Matrix
  • When NOT to Use the Hook Model
  • Regulatory Context
  • Onboarding Audit Checklist
  • First Trigger
  • First Action
  • First Reward
  • First Investment
  • Loop Completion
  • Common Mistakes
  • Quick Diagnostic
  • Further Reading
  • About the Author

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