Running docker desktop with MCP toolkit enabled, can't connect from wsl #49
Description
I'm trying to use the MCP toolkit from claude code. It works great from claude desktop. But not from claude code in WSL. I get. The main issue is "debug": "Error stack: McpError: MCP error -32000: Connection closed\n at ka1._onclose (file:///home/chairman/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1336:15216)\n at _transport.onclose (file:///home/chairman/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1336:14535)\n at ChildProcess. (file:///home/chairman/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1338:1459)\n at ChildProcess.emit (node:events:524:28)\n at ChildProcess.emit (node:domain:489:12)\n at maybeClose (node:internal/child_process:1104:16)\n at ChildProcess._handle.onexit (node:internal/child_process:304:5)",
"timestamp": "2025-07-13T13:36:06.426Z",
"sessionId": "202481b6-78f1-4b42-acd1-72824c7d18ed"
When I run docker info in the terminal I get:
docker info
Client:
Version: 28.3.0
Context: default
Debug Mode: false
Plugins:
ai: Docker AI Agent - Ask Gordon (Docker Inc.)
Version: v1.8.0
Path: /home/chairman/.docker/cli-plugins/docker-ai
buildx: Docker Buildx (Docker Inc.)
Version: v0.25.0-desktop.1
Path: /usr/local/lib/docker/cli-plugins/docker-buildx
cloud: Docker Cloud (Docker Inc.)
Version: v0.4.2
Path: /usr/local/lib/docker/cli-plugins/docker-cloud
compose: Docker Compose (Docker Inc.)
Version: v2.38.2-desktop.1
Path: /home/chairman/.docker/cli-plugins/docker-compose
debug: Get a shell into any image or container (Docker Inc.)
Version: 0.0.41
Path: /usr/local/lib/docker/cli-plugins/docker-debug
desktop: Docker Desktop commands (Docker Inc.)
Version: v0.1.11
Path: /usr/local/lib/docker/cli-plugins/docker-desktop
extension: Manages Docker extensions (Docker Inc.)
Version: v0.2.29
Path: /usr/local/lib/docker/cli-plugins/docker-extension
init: Creates Docker-related starter files for your project (Docker Inc.)
Version: v1.4.0
Path: /usr/local/lib/docker/cli-plugins/docker-init
mcp: Docker MCP Plugin (Docker Inc.)
Version: v0.9.8
Path: /home/chairman/.docker/cli-plugins/docker-mcp
model: Docker Model Runner (EXPERIMENTAL) (Docker Inc.)
Version: v0.1.32
Path: /usr/local/lib/docker/cli-plugins/docker-model
sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
Version: 0.6.0
Path: /usr/local/lib/docker/cli-plugins/docker-sbom
scout: Docker Scout (Docker Inc.)
Version: v1.18.1
Path: /usr/local/lib/docker/cli-plugins/docker-scout
WARNING: Plugin "/usr/local/lib/docker/cli-plugins/docker-dev" is not valid: failed to fetch metadata: fork/exec /usr/local/lib/docker/cli-plugins/docker-dev: no such file or directory
Server:
Containers: 16
Running: 11
Paused: 0
Stopped: 5
Images: 43
Server Version: 28.3.0
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
CDI spec directories:
/etc/cdi
/var/run/cdi
Discovered Devices:
cdi: docker.com/gpu=webgpu
Swarm: inactive
Runtimes: runc io.containerd.runc.v2 nvidia
Default Runtime: runc
Init Binary: docker-init
containerd version: 05044ec0a9a75232cad458027ca83437aae3f4da
runc version: v1.2.5-0-g59923ef
init version: de40ad0
Security Options:
seccomp
Profile: builtin
Kernel Version: 5.15.167.4-microsoft-standard-WSL2
Operating System: Docker Desktop
OSType: linux
Architecture: x86_64
CPUs: 24
Total Memory: 31.3GiB
Name: docker-desktop
ID: 8b0c06fc-be39-45e8-9ad8-1594e1c7f417
Docker Root Dir: /var/lib/docker
Debug Mode: false
HTTP Proxy: http.docker.internal:3128
HTTPS Proxy: http.docker.internal:3128
No Proxy: hubproxy.docker.internal
Labels:
com.docker.desktop.address=unix:///var/run/docker-cli.sock
Experimental: false
Insecure Registries:
hubproxy.docker.internal:5555
::1/128
127.0.0.0/8
Live Restore Enabled: false
WARNING: No blkio throttle.read_bps_device support
WARNING: No blkio throttle.write_bps_device support
WARNING: No blkio throttle.read_iops_device support
WARNING: No blkio throttle.write_iops_device support
WARNING: DOCKER_INSECURE_NO_IPTABLES_RAW is set
I have also tried
docker mcp tools ls --verbose
Docker Desktop is not running