# storagelens

> storagelens — cognis-digital-storagelens. Use this tool when you need to identify potential storage-collision and uninitialized-slot bugs in smart contracts after proxy upgrades. Storagelens diffs and decodes contract storage layouts, providing a clear output of changes and potential issues. It integrates with git, allowing for seamless analysis of contract upgrades and bug detection.

Canonical page: https://skillsregistry.net/skills/cognis-digital-storagelens  
JSON: https://api.skillsregistry.net/v1/skills/cognis-digital-storagelens

## Description

Diffs and decodes contract storage layouts across proxy upgrades to catch storage-collision and uninitialized-slot bugs.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-21

## Source

- **Source listing:** [GitHub](https://github.com/cognis-digital/storagelens)

## 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": "cognis-digital-storagelens"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/cognis-digital-storagelens` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/cognis-digital-storagelens/pull`

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