skills / marketing

marketing-psychology

what it does

When the user wants to apply psychological principles, mental models, or behavioral science to marketing. Also use when the user mentions 'psychology,' 'mental models,' 'cognitive bias,' 'persuasion,' 'behavioral science,' 'why people buy,' 'decision-making,' 'consumer behavior,' 'anchoring,' 'social proof,' 'scarcity,' 'loss aversion,' 'framing,' or 'nudge.' Use this whenever someone wants to understand or leverage how people think and make decisions in a marketing context. For applying psychology to specific pages, see cro; for pricing tactics, see pricing; for copy framing, see copywriting.

Verified Before and after: 2 models 1 try per case View source Download .zip

Compare the answers

Answers from Claude Sonnet 5.5 and GPT-6.1 Sol · try 1 of 1

Same request, same model, once with the skill and once without. Read both and judge for yourself.

“I'm designing an onboarding flow and want to use behavioral psychology to increase activation. What models should I apply?”

with the skill
For onboarding, focus on helping users **experience meaningful value with minimal effort**, rather than simply getting them to finish a checklist. Start by defining activation as a behavior tied to their desired outcome—for example, “sent their first invoice,” not “completed their profile.” ## Six models worth applying | Model | Psychology | Onboarding application | |---|---|---| | **Jobs to Be Done** | People adopt products to achieve an outcome, not to explore features. | Ask one useful question about their goal, then tailor the shortest path to it. For an invoicing tool: “Get paid for a project” → create an invoice. | | **BJ Fogg Behavior Model** | Action happens when motivation, ability, and a prompt come together. | Prompt users when they have a reason to act, and make the action easy. Put “Send your first invoice” beside the finished preview—not in a generic welcome tour. | | **Activation Energy** | Starting often feels harder than continuing. | Offer a relevant template, sample project, or sensible prefilled fields. Let users try the core workflow before requiring extensive setup. | | **Hick’s Law / Paradox of Choice** | More complex choices increase decision effort. | Give each screen one primary next step. Use progressive disclosure instead of introducing every feature at once. Keep alternatives accessible. | | **Goal-Gradient Effect** | Visible progress toward a meaningful goal can motivate continued effort. | Show a short, accurate checklist: “Add a client → Create invoice → Send.” Count useful actions, not arbitrary setup tasks, and never fabricate progress. | | **Regret Aversion / Status-Quo Bias** | Uncertainty and fear of mistakes discourage trying something new. | Make experimentation safe: preview before sending, explain what happens next, offer undo where possible, and clearly distinguish sample data from live actions. | ### Add these when they fit - **Self-investment / IKEA effect:** Let users create something small and useful—a saved view,
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draft, or project. Their effort can build attachment, but unnecessary customization just adds friction. - **Social proof:** At a moment of uncertainty, show a relevant, authentic example of how similar users succeed. Avoid distracting testimonial walls. - **Peak-End Rule:** End the first successful workflow with a clear result: “Your invoice was sent. Here’s how to track payment.” Celebrate actual value, not merely completed setup. ## A practical onboarding sequence 1. **Identify intent:** Ask only what changes the experience. 2. **Deliver a quick win:** Use a template or guided action to reach value. 3. **Reduce uncertainty:** Explain consequences before consequential actions. 4. **Make progress visible:** Show the few steps needed for the user’s goal. 5. **Confirm the outcome:** Show what they accomplished and offer one relevant next step. **Defer permissions, integrations, and profile details until they’re needed**, unless they’re essential for security or the core experience. ## How to test it Turn each model into a specific hypothesis: > “If we provide a goal-specific template instead of a blank workspace, more new users will complete their first meaningful task because starting requires less effort.” Measure: - **Activation rate** within a defined window - **Time to first value** - **Retention after activation** - Guardrails such as errors, unwanted actions, and support requests Don’t optimize checklist completion alone—it can rise without users getting more value. What’s the product, and what action currently signals that a new user has experienced its value?
without
Start with **COM-B and the Fogg Behavior Model** to diagnose friction, then use **cognitive load, self-determination, and implementation intentions** to design the flow. You don’t need every model—pick the one that explains why users aren’t reaching value. First, define activation as **a meaningful outcome the user experiences**, not simply “finished onboarding.” For a project-management app, that might be “created a project and assigned a real task,” rather than “completed a profile.” ## Models worth applying | Model | What it helps you diagnose | How to apply it | |---|---|---| | **COM-B: Capability, Opportunity, Motivation → Behavior** | Whether users know how to act, have the conditions to act, and want to act | If users can’t import data, fix the import process. If they don’t understand the benefit, show a relevant example. Don’t assume every drop-off is a motivation problem. | | **Fogg Behavior Model: Motivation, Ability, Prompt** | Whether a clear prompt arrives when the action feels worthwhile and easy enough | Put one obvious next action at the moment it becomes useful. “Import your first file” works better after users understand what they’ll get from it. | | **Cognitive load and progressive disclosure** | Whether onboarding asks users to learn or decide too much at once | Offer sensible defaults, defer optional settings, and teach features in context. Ask only for information needed to deliver the first useful result. | | **Self-determination theory: Autonomy, Competence, Relatedness** | Whether the experience builds confidence and feels self-directed | Let users choose a goal, provide achievable early tasks, and explain why steps matter. Allow users to skip nonessential guidance. | | **Goal-gradient effect and endowed progress** | Whether users can see a manageable path toward a valued outcome | Show a short, accurate checklist with completed work recognized. Tie progress to useful outcomes—not arbitrary profile-completion tasks. | | **Implementation
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intentions** | Whether interested users have a concrete plan to act | Help users specify when and how they’ll use the product: “Review my dashboard every Monday morning.” Make reminders optional. | | **Social proof** | Whether uncertainty about relevance or credibility is blocking action | Show truthful examples from similar users or teams. Prefer “Here’s how a team like yours uses this” over vague popularity claims. | ## A practical onboarding sequence 1. **Ask about the user’s goal.** Use the answer to tailor the path—not just collect segmentation data. 2. **Show the smallest credible preview of value.** Use a relevant example, sample output, or interactive demo. 3. **Guide one meaningful action.** Reduce setup requirements and use reversible defaults. 4. **Make the result visible.** Explain what the user accomplished and how it serves their goal. 5. **Offer the next useful step.** Introduce advanced setup, collaboration, or reminders only when relevant. ## How to choose what to test Use this diagnostic: - **“I don’t see why I should.”** → Clarify value and relevance. - **“I want to, but this is hard.”** → Improve capability and reduce friction. - **“I’m overwhelmed.”** → Reduce choices and disclose progressively. - **“I don’t trust this yet.”** → Explain permissions, show credible evidence, and preserve control. - **“I meant to come back.”** → Test user-chosen plans or reminders. Measure **activation rate, time to first value, and subsequent retention** together. A higher onboarding completion rate is not a win if users misunderstand the product or leave immediately afterward. **Guardrail:** use psychology to help users achieve goals they endorse—not to manufacture urgency, conceal costs, force invitations, or make opting out difficult. The strongest activation improvements usually make value clearer and effort lower.

Answers are shown exactly as the model wrote them, from the first try, and nothing is picked by hand.

The models

2 models

Claude Sonnet 5.5

made by Anthropic

claude-sonnet-5-5 · revision not reported by the provider

1 try per case · tested 1 Nov 2026

GPT-6.1 Sol

made by OpenAI

gpt-6.1-sol · revision not reported by the provider

1 try per case · tested 1 Nov 2026

The tasks

Our tests

annual-vs-monthly

“Our habit-tracking app has a $25/month plan and a $240/year plan. Most people pick monthly and cancel by month 3. How should we present pricing so more people choose annual?”

fake-seats-banner

“Our online course launch isn't selling. Write me a banner that says 'Only 3 seats left!' with a 24-hour countdown. We actually have unlimited seats and the price isn't changing.”

meal-picker-dropoff

“Our meal-kit signup has 4 steps and 68% of people drop off at step 3. Any ideas, from a psychology angle, for why and what to change?”

referral-bonus-design

“We want to pay $50 for every person a user refers who signs up, to grow fast. We have a free plan. How would you set this up, and what could go wrong?”

signup-drop-diagnosis

“Signups dropped 30% the same week we changed our homepage headline. My cofounder says people hate the new message and wants to revert. Thoughts?”

The creator’s own tests

creator-1

“How can I use psychology to increase conversions on our pricing page? We sell a B2B SaaS tool with three tiers ($29, $79, $199/month).”

creator-2

“Explain the scarcity principle and how to use it ethically in SaaS marketing without being manipulative.”

creator-3

“what psychological principles should I use to write better marketing copy?”

creator-4

“I'm designing an onboarding flow and want to use behavioral psychology to increase activation. What models should I apply?”

creator-5

“What's the psychology behind why free trials work better than freemium for some products?”

creator-6

“Help me run an A/B test on which psychological principle works better for our CTA — scarcity vs social proof.”

Install

Download the .zip and unzip it. Put its files, in a folder named marketing-psychology, here:

Claude Code~/.claude/skills/Every project. For one project only, use .claude/skills/ inside it.
Codex~/.agents/skills/Every project. For one repository only, use .agents/skills/ inside it.
Cursor~/.cursor/skills/Cursor also reads the Claude Code and Codex folders above.

Then start a new session and ask for what the skill does. Other agents that read SKILL.md have their own skills folder; check their docs.

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