issues Search Results · repo:mark3labs/mcp-go language:Go
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inmark3labs/mcp-go (press backspace or delete to remove)Problem Statement
I get better results when an output schema is supported for tools:
https://modelcontextprotocol.io/specification/2025-06-18/schema#tool
Right now it is not supported:
https://github.com/mark3labs/mcp-go/blob/main/mcp/tools.go ...
koh-osug
- Opened 7 hours ago
- #490
Summary
A segmentation fault occurs in StreamableHTTP.SendRequest when making an initialize request to a server that returns
HTTP 404. The issue is a nil pointer dereference on line 254 of streamable_http.go. ...
Dumbris
- Opened 6 days ago
- #482
Problem Statement
Clients can use Roots to send information about the directory it s working on, however, this feature is not supported in
mcp-go on server side.
MCP Spec Reference
https://modelcontextprotocol.io/docs/concepts/roots ...
kzwang
- Opened 6 days ago
- #481
Problem Statement
As per MCP security recommendation here, it s recommended to do origin header validation.
Currently I am implementing this on my test MCP server and I thought it would be nice if we ...
wellsiau-aws
- Opened 8 days ago
- #475
Documentation Issue
the code in https://mcp-go.dev/quick-start is out of date, which cannot run, please fix it
Location
https://mcp-go.dev/quick-start this one--- StreamableHTTP Client Example
Patrick7241
- 2
- Opened 13 days ago
- #472
Description
Hi, I m running this code example locally and I m unable to access any of the default MCP endpoints.
Also, please note, with the example I have also tried specifying WithEndpointPath:
httpServer ...
nicholasf
- Opened 13 days ago
- #471
Problem Statement
Currently when you create a MCP client that communicates with a remote MCP server, there is no way to persist that MCP
session outside of the instance of that MCP client.
This is not ...
C0deKing
- 1
- Opened 14 days ago
- #465
Description
If sub command exited unexpectedly, no go routine can send response back to client, a deadlock will happen
Logs or Error Messages
fatal error: all goroutines are asleep - deadlock!
goroutine ...
WingT
- Opened 15 days ago
- #463
Description
mcp-go would panic for stdio tools if the tool outputs a really long line
Code Sample
// Minimum code snippet to reproduce the issue
// Remove if not applicable
Logs or Error Messages
...
WingT
- Opened 15 days ago
- #462
Description
The mcp-go library ignores the fact that in Go, maps are marshaled into JSON with keys in alphabetical order. This
behavior causes the ordering of tool definitions (such as arguments, return ...
phplego
- 1
- Opened 20 days ago
- #450

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