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docker model runner with backlog.md mcp server #6104
Description
Description
Hi related to this issue with docker model runner.
docker/model-runner#534 (comment)
I have tested some things out and the problem is very specific with a local mcp server.
I don't know if it is something for the docker model runner or for opencode.
When I run a mcp server of backlog mcp start I get the return message of the docker model runner "failed grammer".
see configuration:
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"backlog": {
"type": "local",
"command": [ "backlog",
"mcp",
"start"
],
"enabled": true
}
}
}When I run this configuration I get no error:
"playwright": {
"type": "local",
"command": ["docker", "run", "-i", "--rm", "mcp/playwright"],
"enabled": true
},
"context7": {
"type": "local",
"command": ["npx", "-y", "@upstash/context7-mcp", "--api-key", "xxxx"],
"enabled": true
},I also going to open up a ticket with backlog.md with the same story.
OpenCode version
No response
Steps to reproduce
No response
Screenshot and/or share link
No response
Operating System
No response
Terminal
No response
Activity
github-actions commentedon Dec 24, 2025
This issue might be a duplicate of existing issues. Please check:
opencodehang. #3273: MCP client failing makesopencodehangThe error message "failed grammar" and the use of Docker-based MCP servers with local configuration appears to be related to MCP server initialization issues. Feel free to ignore if your specific case with the backlog.md MCP server differs from these existing issues.
remcocats commentedon Dec 24, 2025
this is not a duplication because it has nothing to do with MCP's running on docker.
remcocats commentedon Dec 24, 2025
I have created a issue aswel on the backlog.md issue list see: MrLesk/Backlog.md#465
thdxr commentedon Mar 25, 2026
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.