# ShelfGap Buyer Lens

> ShelfGap Buyer Lens — keskinonur-shelfgap. Use this tool when you need to compare merchant offers and alternatives to make informed purchasing decisions. The ShelfGap Buyer Lens simulator analyzes user-supplied options, provides explanations for wins and losses, and allows testing of what-if scenarios to optimize buyer choices. It takes in merchant offers and user alternatives as inputs and outputs detailed comparisons and recommendations.

Canonical page: https://skillsregistry.net/skills/keskinonur-shelfgap  
JSON: https://api.skillsregistry.net/v1/skills/keskinonur-shelfgap

## Description

A deterministic buyer-choice simulator inside ChatGPT that compares merchant offers against user-supplied alternatives, explains wins/losses, and tests what-if changes.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/ud4gr1ku4l)
- **Repository:** <https://github.com/keskinonur/shelfgap>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "keskinonur-shelfgap"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/keskinonur-shelfgap` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/keskinonur-shelfgap/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt