# dnSpy Decompiler

> Use this tool when you need to decompile and analyze .NET assemblies, solving problems such as reverse engineering, debugging, and understanding complex codebases. It provides a range of capabilities, including decompilation, search, and cross-reference analysis, with input/output via JSON-RPC 2.0 over HTTP. Ideal for use in software development, security research, and troubleshooting contexts.

Canonical page: https://skillsregistry.net/skills/tuna1999-dnspy  
JSON: https://api.skillsregistry.net/v1/skills/tuna1999-dnspy

## Description

A dnSpy extension providing 28 tools for decompiling and analyzing .NET assemblies via MCP. Exposes decompilation, search, cross-reference analysis, metadata inspection, and code navigation capabilities. Communicates over HTTP on port 5150 using JSON-RPC 2.0, requiring no additional runtime dependencies beyond dnSpy itself.

## Trust

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

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** search
- **Updated:** 2026-04-25

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/tuna1999-dnspy)
- **Repository:** <https://github.com/tuna1999/dnspy-mcp>

## 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": "tuna1999-dnspy"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/tuna1999-dnspy` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/tuna1999-dnspy/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