# mcp-vcd

> Use this tool when you need to efficiently process large waveform files with multiple signals, as it provides all changes of a specified signal name to the model's context, solving issues with limited context window sizes. It takes a signal name as input and outputs the relevant changes, making it useful for analyzing and debugging complex waveforms. This tool is ideal for use cases where fitting entire VCD files into the model's context is not feasible.

Canonical page: https://skillsregistry.net/skills/seanmcloughlin-mcp-vcd  
JSON: https://api.skillsregistry.net/v1/skills/seanmcloughlin-mcp-vcd

## Description

Provide all changes of the specified signal name to the model's context. This is useful for large waveform files with many signals where you cannot fit the entire VCD file into the model's context window.

## Trust

- **Trust score (0–1):** 0.98
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** file-system
- **Updated:** 2026-09-19

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/kdvs90ijbl)
- **Repository:** <https://github.com/SeanMcLoughlin/mcp-vcd>

## 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": "seanmcloughlin-mcp-vcd"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/seanmcloughlin-mcp-vcd` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/seanmcloughlin-mcp-vcd/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