debugger

debugger is an MCP server for Claude Code, Codex, Cursor from soundbytelabs/sbl-debugger-mcp. Its token cost is not measured, scanned A, original, MIT.

A local debugging server for ARM Cortex-M microcontrollers, the small computers used in embedded devices. It connects to the device through common debugging tools.

In plain words
What is it for?
Attaching to a device, flashing firmware, setting breakpoints, stepping through code, and inspecting registers, memory, and peripherals.
Why use it?
It gives a coding agent a way to inspect and control running firmware during debugging. This can reduce the need to perform each debugging action manually.

MCP server for Claude CodeCodexCursor

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/soundbytelabs/sbl-debugger-mcp/debugger
Clone the repo
git clone --depth 1 https://github.com/soundbytelabs/sbl-debugger-mcp

Made for: Claude Code, Codex, Cursor.

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 debugger

README.md
[![agentmods](https://agentmods.dev/badge/mcp/soundbytelabs/sbl-debugger-mcp/debugger.svg)](https://agentmods.dev/mcp/soundbytelabs/sbl-debugger-mcp/debugger)
Your own site
<a href="https://agentmods.dev/mcp/soundbytelabs/sbl-debugger-mcp/debugger"><img src="https://agentmods.dev/badge/mcp/soundbytelabs/sbl-debugger-mcp/debugger.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

debugger 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 3d 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 · 9 lines

What it actually says

{
  "debugger": {
    "command": "uvx",
    "args": [
      "sbl-debugger"
    ],
    "env": {}
  }
}
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. 3d ago First seen · 9 lines scan A 52b227bbbef9

Subscribe to this mod's changes

debugger is an MCP server published in the GitHub repository soundbytelabs/sbl-debugger-mcp (0 stars, last pushed 5mo 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 2026-08-31.