# gaff

> gaff — finnomahony2-gaff. Use this tool when you need to analyze and explain property-related data, such as Land Registry sold prices, UK House Price Index (HPI), and Energy Performance Certificates (EPC). It provides insights and explanations over open UK data, solving problems related to property valuation and energy efficiency. With a simple Python interface, it outputs actionable information for informed decision-making in the UK property market.

Canonical page: https://skillsregistry.net/skills/finnomahony2-gaff  
JSON: https://api.skillsregistry.net/v1/skills/finnomahony2-gaff

## Description

An explainable property engine over open UK data: Land Registry sold prices, UK HPI and EPC. Stdlib-only Python, with an MCP server and a Claude skill.

## Trust

- **Trust score (0–1):** 0.94
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **License:** MIT
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/finnomahony2/gaff)

## 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": "finnomahony2-gaff"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/finnomahony2-gaff` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/finnomahony2-gaff/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