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jlink-mcp

jlink-mcp is an MCP server for Claude Code from Klievan/jlink-mcp. Its token cost is not measured, scanned A, original, MIT.

An MCP server for debugging embedded firmware on physical hardware using J-Link probes, Cortex-M fault information, RTT logs, and GDB.

In plain words
What is it for?
It helps investigate firmware crashes, read real-time debug logs, and debug Cortex-M devices through a J-Link connection.
Why use it?
It connects an agent to hardware-level debugging information that is difficult to inspect from source code alone.

MCP server for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the jlink-mcp plugin — 1 skill, 2 MCP servers shipped together

not rated 28 +2 8d ago A scan tokens not measured original MIT
View the source file Klievan/jlink-mcp marketplace.visualstudio.com
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/klievan/jlink-mcp/jlink-mcp
Clone the repo
git clone --depth 1 https://github.com/Klievan/jlink-mcp

Made for: Claude Code.

Or install jlink-mcp, the plugin that ships this one along with the rest of its 1 skill, 2 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for jlink-mcp

README.md
[![agentmods](https://agentmods.dev/badge/mcp/klievan/jlink-mcp/jlink-mcp.svg)](https://agentmods.dev/mcp/klievan/jlink-mcp/jlink-mcp)
Your own site
<a href="https://agentmods.dev/mcp/klievan/jlink-mcp/jlink-mcp"><img src="https://agentmods.dev/badge/mcp/klievan/jlink-mcp/jlink-mcp.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

jlink-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 15 lines

What it actually says

{
  "jlink-mcp": {
    "command": "npx",
    "args": [
      "-y",
      "jlink-mcp"
    ],
    "env": {
      "JLINK_DEVICE": "",
      "JLINK_SERIAL": "",
      "SVD_PATH": "",
      "JLINK_RTT_ADDR": ""
    }
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 15 lines scan A 34188ada5000

Subscribe to this mod's changes

jlink-mcp is an MCP server published in the GitHub repository Klievan/jlink-mcp (28 stars, last pushed 8d ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

DebuggingHardware and IoTarmclaudecortex-mdebuggerembedded
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