What is mcp-dap-server CLAUDE.md?

Project instructions for an MCP server that lets AI assistants control debuggers through the Debug Adapter Protocol, including Go debugging with Delve and C/C++ debugging with GDB.

Use them when developing, reviewing, or debugging this MCP server and its debugger tools or guided workflows.

They give the assistant the project overview, architecture, important files, and expected coding patterns before it changes the code.

How go-delve/mcp-dap-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to go-delve/mcp-dap-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/go-delve/mcp-dap-server/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/go-delve/mcp-dap-server

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/go-delve/mcp-dap-server/claude-md/github.svg)](https://agentmods.dev/instructions/go-delve/mcp-dap-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/go-delve/mcp-dap-server/claude-md"><img src="https://agentmods.dev/badge/instructions/go-delve/mcp-dap-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/go-delve/mcp-dap-server/claude-md"><img src="https://agentmods.dev/badge/instructions/go-delve/mcp-dap-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,867 This file is loaded in full into every session.

When invoked 2,867 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.02867	$0.02867
Opus 5.5	$0.01147	$0.01147
Sonnet 5.5	$0.00573	$0.00573
Haiku 4.5	$0.00287	$0.00287

Measured 2mo ago against content hash d7aca77d920c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-dap-server CLAUDE.md 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 2mo 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.

CLAUDE.md · 246 lines

How it starts

The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Model Context Protocol) server that bridges MCP clients with DAP (Debug Adapter Protocol) debuggers. It exposes debugging capabilities as MCP tools, allowing AI assistants to programmatically control debuggers. Supports Delve (Go) and GDB (C/C++ via native DAP).

Architecture

Core Components

main.go: MCP server initialization

Creates the MCP server using the go-sdk
Registers all debugging tools via registerTools()
Registers workflow prompts via registerPrompts()
Exposes stdio transport

prompts.go: MCP prompt implementations

4 prompt handlers for guided debugging workflows (source, attach, core dump, binary)
Registered via server.AddPrompt() — no session state, always available
Each prompt returns a GetPromptResult with step-by-step tool invocation guidance

tools.go: MCP tool implementations (~1200 lines)

All MCP tools are methods on debuggerSession struct
Each tool method signature: func (ds *debuggerSession) toolName(ctx context.Context, _ *mcp.ServerSession, params *mcp.CallToolParamsFor[ParamsType]) (*mcp.CallToolResultFor[any], error)
Tools send DAP requests via ds.client and read/parse responses
readAndValidateResponse(client, requestSeq, errorPrefix) matches responses by request_seq, skipping unrelated responses
readTypedResponse[T](client, requestSeq) matches typed responses by request_seq, skipping unrelated responses
Tools that wait for stopped/terminated events loop on ReadMessage() until they receive the expected event

dap.go: DAP client implementation

DAPClient manages TCP or stdio connection to DAP server
Wraps github.com/google/go-dap protocol messages
All DAP request methods return (int, error) where int is the request sequence number
Sequence numbers are used to match responses to requests via request_seq field

Read the full file on GitHub · 246 lines

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.

2mo ago First seen · 246 lines · 2,867 tokens per session scan A d7aca77d920c

Subscribe to this mod's changes

mcp-dap-server CLAUDE.md is an instructions file published in the GitHub repository go-delve/mcp-dap-server (106 stars, last pushed 4d ago), licensed MIT. It adds 2,867 tokens to every session, about $0.0115 per session on Opus 5.5. 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.

Debugging agentic-ai agents ai dap debugging-tool

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mcp-dap-server: Instructions file for Claude Code