Authenticated providers can still appear uncached across restarts, causing connected-provider cache consumers to misfire #21097

Description

While using OpenCode with the oh-my-openagent plugin, I repeatedly got this warning toast inside the TUI:

⚠️ Provider Cache Missing
Model filtering disabled. RESTART OpenCode to enable full functionality.

The important part is that this happened even though providers were already authenticated and even after a full restart.

In my case the configured/authenticated providers were:

• OpenAI (oauth)
• OpenCode Go (api)
• GitHub Copilot (oauth)

At the time the warning was shown, oh-my-openagent could not see a connected-provider cache yet. Later, without changing authentication, ~/.cache/oh-my-opencode/connected-providers.json was eventually created and contained:

{
  "connected": [
    "opencode-go",
    "openai",
    "github-copilot",
    "opencode"
  ],
  "updatedAt": "2026-04-05T10:36:19.218Z"
}

So the system eventually recognized the connected providers, but not reliably during the earlier startup/session state that plugin consumers depend on.

From the plugin side, the warning is emitted when the connected-provider cache file does not exist yet. The cache is built from client.provider.list(), so this looks like an upstream timing/state problem where provider connectivity is not reliably available early enough (or not consistently persisted/observable across restarts).

Related context:

• code-yeongyu/oh-my-openagent#1635 was triaged as upstream
• #12698 looks related, but that issue is specifically about env vars set after initialization; this reproduction used already-authenticated oauth/api providers

Plugins

oh-my-openagent

OpenCode version

1.3.15

Steps to reproduce

1. Install and configure oh-my-openagent
2. Authenticate providers (in my case: OpenAI oauth, OpenCode Go api, GitHub Copilot oauth)
3. Launch opencode
4. Send a message in the TUI
5. Observe the warning toast:
   • Provider Cache Missing
   • Model filtering disabled. RESTART OpenCode to enable full functionality.
6. Fully restart OpenCode
7. Observe that the warning can still persist across restart
8. Later, in a subsequent session, ~/.cache/oh-my-opencode/connected-providers.json appears and contains the authenticated providers

Screenshot and/or share link

N/A

Operating System

Linux 6.6.87.2-microsoft-standard-WSL2 x86_64 GNU/Linux

Terminal

xterm-256color (WSL)