# Diffgrab

> Use this tool when you need to track changes to web pages and identify specific modifications between versions. Diffgrab solves the problem of monitoring website updates by providing structured diffs, making it easier to analyze changes. It integrates markgrab and snapgrab, taking in web page URLs as input and outputting detailed change reports.

Canonical page: https://skillsregistry.net/skills/io-github-arknill-diffgrab  
JSON: https://api.skillsregistry.net/v1/skills/io-github-arknill-diffgrab

## Description

Web page change tracking with structured diffs. markgrab + snapgrab integration.

## Trust

- **Trust score (0–1):** 0.84
- **Verification tier:** verified
- **Last scanned:** 2026-08-28

## Facts

- **Version:** 0.1.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** api-integration
- **Updated:** 2026-08-28

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.ArkNill%2Fdiffgrab)
- **Repository:** <https://github.com/QuartzUnit/diffgrab>

## 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": "io-github-arknill-diffgrab"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-arknill-diffgrab` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-arknill-diffgrab/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