MCP_DOCKER

Resolved 💬 4 comments Opened Oct 27, 2025 by AmeerHamza-FT Closed Jan 17, 2026

💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

What version of Codex is running?

What subscription do you have?

Pro

Which model were you using?

codex high

What platform is your computer?

Windows with Jetbrains

What issue are you seeing?

MCP client for MCP_DOCKER failed to start: handshaking with MCP server failed: connection closed: initialize response

• Codex logs uploaded. Please open an issue using the following URL:

https://github.com/openai/codex/issues/new?template=2-bug-report.yml&steps=Uploaded%20thread:%20019a248d-c6cc-7ea1-8ab6-5378f1373195

Or mention your thread ID 019a248d-c6cc-7ea1-8ab6-5378f1373195 in an existing issue.

What steps can reproduce the bug?

Uploaded thread: 019a248d-c6cc-7ea1-8ab6-5378f1373195

What is the expected behavior?

_No response_

Additional information

_No response_

View original on GitHub ↗

4 Comments

github-actions[bot] contributor · 10 months ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

#5444
#5208
#5619
#5044

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gpeal contributor · 10 months ago

What do you have in your config.toml?

ManuelReschke · 10 months ago

I have the same issue with Windows 11 and codex cli 0.50

config.toml

model = 'gpt-5-codex'
model_reasoning_effort = 'medium'
windows_wsl_setup_acknowledged = true

[mcp_servers]
[mcp_servers.MCP_DOCKER]
command = 'docker.exe'
args = ['mcp', 'gateway', 'run']

[projects]
[projects.'...........................................']
trust_level = 'trusted'

Error im log.

^[[2m2025-10-30T08:09:33.496697Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): panic: unable to get 'ProgramData' [recovered]
^[[2m2025-10-30T08:09:33.496714Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	panic: unable to get 'ProgramData'
^[[2m2025-10-30T08:09:33.496717Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 
^[[2m2025-10-30T08:09:33.496719Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): goroutine 1 [running]:
^[[2m2025-10-30T08:09:33.496721Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.init.OnceValue[...].func2.1()
^[[2m2025-10-30T08:09:33.496723Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	sync/oncefunc.go:54 +0x69
^[[2m2025-10-30T08:09:33.496725Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): panic({0x13573e0?, 0xc0003e8490?})
^[[2m2025-10-30T08:09:33.496726Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	runtime/panic.go:792 +0x132
^[[2m2025-10-30T08:09:33.496728Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.init.func1()
^[[2m2025-10-30T08:09:33.496741Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/mcp-gateway/pkg/desktop/paths.go:17 +0x145
^[[2m2025-10-30T08:09:33.496743Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.init.OnceValue[...].func2()
^[[2m2025-10-30T08:09:33.496745Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	sync/oncefunc.go:57 +0x8a
^[[2m2025-10-30T08:09:33.496747Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): sync.(*Once).doSlow(0xc00059f890?, 0x2021df?)
^[[2m2025-10-30T08:09:33.496749Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	sync/once.go:78 +0xab
^[[2m2025-10-30T08:09:33.496750Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): sync.(*Once).Do(0x203dc0?, 0x269cfa0?)
^[[2m2025-10-30T08:09:33.496752Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	sync/once.go:69 +0x19
^[[2m2025-10-30T08:09:33.496754Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.init.OnceValue[...].func3()
^[[2m2025-10-30T08:09:33.496756Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	sync/oncefunc.go:62 +0x5c
^[[2m2025-10-30T08:09:33.496757Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.getAdminSettings()
^[[2m2025-10-30T08:09:33.496759Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/mcp-gateway/pkg/desktop/features.go:48 +0x26
^[[2m2025-10-30T08:09:33.496764Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/pkg/desktop.CheckFeatureIsEnabled({0x1871870, 0xc000283b80}, {0x15f4213, 0x16}, {0x15ec841, 0x12})
^[[2m2025-10-30T08:09:33.496767Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/mcp-gateway/pkg/desktop/features.go:22 +0x47
^[[2m2025-10-30T08:09:33.496813Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/mcp-gateway/cmd/docker-mcp/commands.Root.func1(0xc00011a000?, {0x26e68a0?, 0x4?, 0x15d79fa?})
^[[2m2025-10-30T08:09:33.496821Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/mcp-gateway/cmd/docker-mcp/commands/root.go:55 +0xab
^[[2m2025-10-30T08:09:33.496823Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/spf13/cobra.(*Command).execute(0xc000119b08, {0xc000673430, 0x0, 0x0})
^[[2m2025-10-30T08:09:33.496825Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/spf13/cobra@v1.9.1/command.go:986 +0x939
^[[2m2025-10-30T08:09:33.496827Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/spf13/cobra.(*Command).ExecuteC(0xc00012f808)
^[[2m2025-10-30T08:09:33.496829Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/spf13/cobra@v1.9.1/command.go:1148 +0x46f
^[[2m2025-10-30T08:09:33.496830Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/spf13/cobra.(*Command).Execute(...)
^[[2m2025-10-30T08:09:33.496832Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/spf13/cobra@v1.9.1/command.go:1071
^[[2m2025-10-30T08:09:33.496871Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/cli/cli-plugins/plugin.RunPlugin(0xc000780a00, 0xc0001cbb08, {{0x15d86f6, 0x5}, {0x15e16bb, 0xb}, {0x18525e8, 0x7}, {0x15ea948, 0x11}, ...})
^[[2m2025-10-30T08:09:33.496875Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/cli@v28.2.2+incompatible/cli-plugins/plugin/plugin.go:80 +0x145
^[[2m2025-10-30T08:09:33.496925Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): github.com/docker/cli/cli-plugins/plugin.Run(0xc00059ff00, {{0x15d86f6, 0x5}, {0x15e16bb, 0xb}, {0x18525e8, 0x7}, {0x15ea948, 0x11}, {0x0, ...}})
^[[2m2025-10-30T08:09:33.496932Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/cli@v28.2.2+incompatible/cli-plugins/plugin/plugin.go:95 +0x105
^[[2m2025-10-30T08:09:33.497026Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): main.main()
^[[2m2025-10-30T08:09:33.497037Z^[[0m ^[[32m INFO^[[0m MCP server stderr (docker.exe): 	github.com/docker/mcp-gateway/cmd/docker-mcp/main.go:33 +0x3e5
^[[2m2025-10-30T08:09:39.161381Z^[[0m ^[[33m WARN^[[0m MCP client for `MCP_DOCKER` failed to start: handshaking with MCP server failed: connection closed: initialize response

etraut-openai contributor · 7 months ago

Closing out old bugs.