# Cognitive Ux Marketplace

> Design and audit marketplaces, directories, comparison sites, and third-party listing platforms using evidence-informed UX. Use when people must find and select a provider, seller, service, or listing; return a query/refinement model, comparable attributes, ranking explanation, trust/review rules, safe handoff, and validation plan.

- **Type:** Skill
- **Install:** `agentstack add skill-kfeng209-oss-cognitive-ux-cognitive-ux-marketplace`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [kfeng209-oss](https://agentstack.voostack.com/s/kfeng209-oss)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [kfeng209-oss](https://github.com/kfeng209-oss)
- **Source:** https://github.com/kfeng209-oss/cognitive-ux/tree/main/skills/cognitive-ux-marketplace

## Install

```sh
agentstack add skill-kfeng209-oss-cognitive-ux-cognitive-ux-marketplace
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Cognitive UX: Marketplace & Directory

## Scope

Use for multi-seller/provider comparison. Use `cognitive-ux-commerce` for an owned retail catalog and `cognitive-ux-booking` when the core task is reserving a time or resource.

## Intake

- Identify supply type, buyer task, and decision criteria.
- Identify what is verified, sponsored, ranked, or paid for.
- Identify dispute, reporting, messaging, payment, and booking handoff rules.

State assumptions that could change the design. Define the primary user task, its consequence of failure, and a measurable success outcome before proposing a layout.

## Design procedure

1. Normalize the attributes people need to compare; let them refine without losing the active query.
2. Explain ranking, sponsorship, verification, availability, and review provenance near the result—not only in legal text.
3. Separate seller claims, platform-verified facts, and user reviews; expose review context and reporting routes.
4. Show seller identity, total cost, delivery/return/cancellation terms, and dispute or safety support before commitment.
5. Design comparison tools to assist judgment rather than create a misleading single score.

Label each non-obvious recommendation as **Standard / requirement**, **Evidence-informed default**, or **Hypothesis to test**. Read [archetype evidence](references/archetype-evidence.md) before making research claims.

## Required outputs

- query, filter, sort, and comparison model
- ranking and sponsored-result explanation
- trust/review/dispute specification
- listing-to-contact or checkout handoff
- comprehension and fair-access validation plan
- Evidence-to-decision table: decision → mechanism → source → label → limitation → test metric.
- Accessibility, ethics, and recovery-path checklist.

## Guardrails

Do not imply a ranking is neutral when it is paid or personalized, hide seller identity, manipulate reviews, or use a score without its basis.

## Related skills

Use `cognitive-ux-commerce`, `cognitive-ux-booking`, and `cognitive-ux-community`. Do not combine multiple archetypes by default; select the primary user task and add another skill only when a secondary task is independently important.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [kfeng209-oss](https://github.com/kfeng209-oss)
- **Source:** [kfeng209-oss/cognitive-ux](https://github.com/kfeng209-oss/cognitive-ux)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-kfeng209-oss-cognitive-ux-cognitive-ux-marketplace
- Seller: https://agentstack.voostack.com/s/kfeng209-oss
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.