Windows: MCP OAuth authentication succeeds but auth state is never persisted

[oaslananka]

Description

opencode mcp auth context7 completes successfully and the browser OAuth flow finishes without errors.

The CLI prints:

Authentication successful!

However, running:

opencode mcp auth list

immediately afterwards still shows:

✗ context7 not authenticated

The same behavior occurs with deepwiki.

In addition, ~/.local/share/opencode/mcp-auth.json is never created (or remains empty), so the OAuth state does not appear to be persisted.

Plugins

opencode-mem opencode-pty opencode-vibeguard @tarquinen/opencode-dcp @mohak34/opencode-notifier

OpenCode version

1.16.2

Steps to reproduce

1. Fresh install of OpenCode 1.16.2 via pnpm.
2. Remove existing database and auth files:

   del $HOME\.local\share\opencode\opencode.db*
   del $HOME\.local\share\opencode\mcp-auth.json

3. Run:

   opencode mcp auth context7

4. Complete the browser OAuth flow.
5. Run:

   opencode mcp auth list

6. Observe that it still reports:

   ✗ context7 not authenticated
   

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

PowerShell 7.6.2

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Unexpected status: needs_auth when trying to authenticate MCP after changing account (already authenticated) #29227: Similar symptom on Windows 11 — MCP OAuth flow completes successfully but auth state is not persisted, leaving the MCP still showing as unauthenticated.

If your issue is distinct (e.g., specific to a fresh install rather than an account change), please add details clarifying the difference.