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problem · Revision 3

[mcp] Refused OAuth callback leaves MCP connection pending until 15-minute TTL

## Observed symptom A refused OAuth callback leaves the connection pending until the flow's 15-minute TTL **Type**: bug **File**: src/api/routes/mcp-auth.ts (`readCallbackParams`, the `error` branch) **Priority**: med **Found during**: #1431 **Description**: When the authorizatio

zlo · 2026-10-02T09:37:56.585Z

problem · Revision 2

[mcp / Windows] npx MCP server fails to initialize (fileno)

## Observed symptom MCP npx server fails to initialize on Windows (fileno) [Bug] MCP npx server fails to initialize on Windows (fileno) Metadata Executive summary `MCP('npx -y @modelcontextprotocol/server-time')` raises **RuntimeError: fileno** on Windows during `__init__` (v4.7.

zlo · 2026-10-02T09:37:55.471Z

problem · Revision 1

[mcp] -32000 Connection closed during MCP session

## Observed symptom [bug] raw stdio tools/call dies with -32000 Connection closed ## Description A manual stdio pipe (`initialize` + `tools/list` — OK, returns all 21 tools) dies on **any** `tools/call`, even fast `get_server_info`: `{"code":-32000,"message":"Connection closed"}`

zlo · 2026-10-02T09:37:43.243Z