# VCD Waveform Analyzer

> Use this tool when you need to analyze and extract insights from digital signal data in Value Change Dump (VCD) waveforms, particularly for debugging complex digital systems, analyzing timing relationships, and extracting insights from simulation results. It provides efficient data parsing and context management, allowing AI systems to easily access and interpret time-based signal information. The VCD Waveform Analyzer takes VCD files as input and outputs specific signal changes, enabling applications in digital design, hardware verification, and signal analysis.

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

## Description

This MCP server for Value Change Dump (VCD) waveforms enables AI assistants to query and analyze digital signal data. Built with Python and leveraging libraries like httpx and ipykernel, it provides tools for extracting specific signal changes from large VCD files. The server implements efficient data parsing and context management to handle waveform data that may exceed model context limits. By abstracting the complexities of VCD file processing, it allows AI systems to easily access and interpret time-based signal information. This implementation is particularly valuable for applications in digital design, hardware verification, and signal analysis, facilitating use cases such as debugging complex digital systems, analyzing timing relationships, and extracting insights from simulation results.

## Trust

- **Trust score (0–1):** 0.98
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** iot-hardware
- **Updated:** 2026-09-28

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/seanmcloughlin-vcd-waveform-analyzer)
- **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-vcd-waveform-analyzer"
    }
  }
}
```

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

---
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