Skillget

XcodeMCPKit

mcp
Guvenlik Denetimi
Basarisiz
Health Gecti
  • License — License: MIT
  • Description — Repository has a description
  • Active repo — Last push 0 days ago
  • Community trust — 13 GitHub stars
Code Basarisiz
  • rm -rf — Recursive force deletion command in scripts/build-release.sh
  • rm -rf — Recursive force deletion command in scripts/package-universal.sh
  • rm -rf — Recursive force deletion command in scripts/test-live-mcpbridge.sh
Permissions Gecti
  • Permissions — No dangerous permissions requested
Purpose
This tool acts as a proxy server for Xcode's MCP (Model Context Protocol), allowing multiple AI clients to share a single session via STDIO or a local HTTP connection.

Security Assessment
Overall Risk: Low. The server is designed to listen strictly on localhost, avoiding exposure to external networks. It interacts directly with the local system by executing Xcode command-line tools (`xcrun mcpbridge`), which is its intended function. The codebase does not request dangerous overarching system permissions, and no hardcoded secrets were found. The automated scan did flag the presence of `rm -rf` commands in the repository, but these are contained exclusively within build, packaging, and testing shell scripts. These commands are standard practice for cleaning up temporary directories during compilation and packaging, and they do not pose a risk to the end-user during normal operation.

Quality Assessment
The project demonstrates strong maintenance practices, with repository activity logged as recently as today. It is properly licensed under the permissive MIT license, which is ideal for open-source integration. While the community trust footprint is currently small (13 GitHub stars), the project makes up for it with high-quality documentation. The README is exceptionally clear, provides straightforward installation instructions, and importantly, provides SHA256 checksums for verifying release binaries.

Verdict
Safe to use.
SUMMARY

Xcode MCP proxy with multi-client sessions

README.md

XcodeMCPKit

日本語

An MCP proxy for Xcode MCP (mcpbridge).
Designed so the Xcode permission dialog appears once when the proxy starts.

Quick Start

  1. Start the proxy server
    xcode-mcp-proxy-server
  2. Click Allow in Xcode’s permission dialog

Architecture

See Architecture for the process overview.
See Maintainer Architecture for module boundaries and local verification commands.

Installation

1. Install the binaries

Build from source

swift run -c release xcode-mcp-proxy-install

Install from GitHub Releases

Each release tag (v*) publishes:

  • xcode-mcp-proxy.tar.gz (universal binary)
  • xcode-mcp-proxy-darwin-arm64.tar.gz
  • xcode-mcp-proxy-darwin-x86_64.tar.gz
  • SHA256SUMS.txt

Example:

VERSION=v0.1.0
BASE_URL="https://github.com/lynnswap/XcodeMCPKit/releases/download/${VERSION}"

ARCHIVE="xcode-mcp-proxy.tar.gz"
curl -fL -O "${BASE_URL}/${ARCHIVE}"
curl -fL -O "${BASE_URL}/SHA256SUMS.txt"
grep "  ${ARCHIVE}\$" SHA256SUMS.txt | shasum -a 256 -c

tar -xzf "${ARCHIVE}"
mkdir -p "${HOME}/.local/bin"
cp bin/* "${HOME}/.local/bin/"
chmod +x "${HOME}/.local/bin/xcode-mcp-proxy" \
         "${HOME}/.local/bin/xcode-mcp-proxy-server" \
         "${HOME}/.local/bin/xcode-mcp-proxy-install"

If you prefer a platform-specific archive, choose one of:

  • xcode-mcp-proxy.tar.gz: universal binary
  • xcode-mcp-proxy-darwin-arm64.tar.gz: Apple Silicon
  • xcode-mcp-proxy-darwin-x86_64.tar.gz: Intel

Optional: change the installation destination

./.build/release/xcode-mcp-proxy-install --prefix "$HOME/.local"
# or
./.build/release/xcode-mcp-proxy-install --bindir "$HOME/bin"

2. Add the install directory to your PATH

By default, xcode-mcp-proxy and xcode-mcp-proxy-server are installed to ~/.local/bin.

echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc

3. Register the proxy in your MCP client

Replace xcrun mcpbridge with one of the following:

Codex

codex mcp remove xcode
# Recommended: Streamable HTTP
codex mcp add xcode --url http://localhost:8765/mcp

# Alternative: STDIO
codex mcp add xcode -- xcode-mcp-proxy

Claude Code

claude mcp remove xcode
claude mcp add --transport stdio xcode -- xcode-mcp-proxy

Usage

Proxy Server: xcode-mcp-proxy-server

See Quick Start for how to launch.

Defaults

  • command: xcrun
  • args: mcpbridge
  • upstream processes: 1 (spawns multiple mcpbridge processes when increased)
  • listen: localhost:8765
  • request timeout: 300 seconds (0 disables)
  • requests sharing the same MCP session are forwarded FIFO, one at a time
  • max body size: 1048576 bytes
  • initialization: eager at startup
  • discovery: ~/Library/Caches/XcodeMCPProxy/endpoint.json

Options

Option Description
--upstream-command cmd mcpbridge command
--upstream-args a,b,c mcpbridge args (comma-separated)
--upstream-arg value Append a single mcpbridge arg
--upstream-processes n Spawn n upstream mcpbridge processes (default: 1, max: 10)
--session-id id Explicit Xcode MCP session ID
--max-body-bytes n Max request body size
--request-timeout seconds Request timeout (0 disables non-initialize timeouts; initialize still uses a bounded handshake timeout)
--config path Path to proxy config TOML for overriding the upstream handshake
--auto-approve Opt in to auto-approve the Xcode permission dialog
--refresh-code-issues-mode mode Serve XcodeRefreshCodeIssuesInFile via proxy navigator issues (proxy, default) or pass through to Xcode live diagnostics (upstream)
--force-restart If the listen port is in use, terminate an existing xcode-mcp-proxy-server and restart

Environment Variables

Variable Description
LISTEN Listen address; example: 127.0.0.1:8765
HOST Listen host; used with PORT when LISTEN is unset
PORT Listen port; used with HOST when LISTEN is unset
MCP_XCODE_PID Passed through to upstream mcpbridge; the proxy itself does not parse it
MCP_XCODE_SESSION_ID Optional explicit upstream session ID
MCP_XCODE_CONFIG Proxy config TOML path; --config takes precedence
MCP_XCODE_REFRESH_CODE_ISSUES_MODE proxy or upstream
MCP_LOG_LEVEL Log level: trace, debug, info, notice, warning, error, critical
XCODE_MCP_PROXY_DISCOVERY_FILE Override the discovery file path for isolated local/live test runs
XCODE_MCP_PROXY_CACHE_ROOT Override the cache root used to derive the discovery path when XCODE_MCP_PROXY_DISCOVERY_FILE is unset

Logs are written to stderr.

Maintainer Commands

scripts/check-architecture.sh
scripts/test-fast.sh
scripts/test-process.sh
scripts/check.sh
scripts/test-live-mcpbridge.sh
  • test-live-mcpbridge.sh is local-only and intentionally excluded from CI.
  • The live script uses the currently running Xcode session, requires exactly one Xcode process, uses 127.0.0.1:0, and writes discovery output under a temp path.

Proxy Config

Key Type Default
upstream_handshake.protocolVersion string "2025-03-26"
upstream_handshake.clientName string "XcodeMCPKit"
upstream_handshake.clientVersion string "dev"
upstream_handshake.capabilities table {}
tools.disabled array of strings []

If clientVersion is omitted, the proxy auto-resolves it from the Xcode IDEChat*Version entry matching clientName when available.

Example:

[upstream_handshake]
clientName = "XcodeMCPKit"

[tools]
disabled = ["RunAllTests", "RunSomeTests"]

Disabled tools are removed from tools/list and rejected on direct tools/call requests with a tool error. The config is loaded when the proxy starts; restart xcode-mcp-proxy-server after editing the file.

Adapter: xcode-mcp-proxy

Options

Option Description
--request-timeout seconds HTTP request timeout (0 disables)
--url url Explicit upstream URL (example: http://localhost:9000/mcp)

Environment Variables

Variable Description
XCODE_MCP_PROXY_ENDPOINT Override upstream URL; --url takes precedence

Troubleshooting

Troubleshooting

References

License

LICENSE

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