MCP: failed to get tools from Stitch - can't resolve reference #/$defs/ScreenInstance #26260

Description

Description

OpenCode fails to load tools from the Stitch MCP proxy even though the proxy connects successfully and discovers 14 tools.

Steps to reproduce

1. Configure Stitch MCP in local/proxy mode with API key
2. Start OpenCode
3. Stitch shows as "Failed to get tools" in statusline

Log output

INFO service=mcp key=stitch type=local found
INFO service=mcp key=stitch mcp stderr: [stitch-proxy] Connecting to https://stitch.googleapis.com/mcp...
INFO service=mcp key=stitch mcp stderr: [stitch-proxy] Connected to Stitch, discovered 14 tools
INFO service=mcp key=stitch mcp stderr: [stitch-proxy] Proxy server running
ERROR service=mcp key=stitch error=can't resolve reference #/$defs/ScreenInstance from id # failed to get tools from client

Config

"stitch": {
  "enabled": true,
  "type": "local",
  "command": ["npx", "@_davideast/stitch-mcp", "proxy"],
  "environment": {
    "STITCH_API_KEY": "..."
  }
}

Environment

• OpenCode version: 1.14.41
• macOS (Apple Silicon M4)
• stitch-mcp: latest via npx

Plugins

No response

OpenCode version

1.14.41

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

macOS (Apple Silicon M4)

Terminal

No response