docs(github): correct action token configuration (#44795)

packages/web/src/content/docs/github.mdx

@@ -57,20 +57,19 @@ Or you can set it up manually.
        permissions:
          id-token: write
        steps:
-          - name: Checkout repository
-            uses: actions/checkout@v6
-            with:
-              fetch-depth: 1
-              persist-credentials: false
+         - name: Checkout repository
+           uses: actions/checkout@v6
+           with:
+             fetch-depth: 1
+             persist-credentials: false
 
-          - name: Run OpenCode
+         - name: Run OpenCode
            uses: anomalyco/opencode/github@latest
            env:
              ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
            with:
              model: anthropic/claude-sonnet-4-20250514
              # share: true
-             # github_token: xxxx
    ```
 
 3. **Store the API keys in secrets**
@@ -85,19 +84,30 @@ Or you can set it up manually.
 - `agent`: The agent to use. Must be a primary agent. Falls back to `default_agent` from config or `"build"` if not found.
 - `share`: Whether to share the OpenCode session. Defaults to **true** for public repositories.
 - `prompt`: Optional custom prompt to override the default behavior. Use this to customize how OpenCode processes requests.
-- `token`: Optional GitHub access token for performing operations such as creating comments, committing changes, and opening pull requests. By default, OpenCode uses the installation access token from the OpenCode GitHub App, so commits, comments, and pull requests appear as coming from the app.
+- `mentions`: Comma-separated list of trigger phrases, case-insensitive. Defaults to `/opencode,/oc`.
+- `variant`: Model variant for provider-specific reasoning effort, for example `high`, `max`, or `minimal`.
+- `oidc_base_url`: Base URL for the OIDC token exchange API. Only needed when running a custom GitHub App install. Defaults to `https://api.opencode.ai`.
+- `use_github_token`: Set to `true` to use a caller-provided `GITHUB_TOKEN` instead of exchanging an OIDC token for an OpenCode App installation token. Defaults to `false`.
 
-  Alternatively, you can use the GitHub Action runner's [built-in `GITHUB_TOKEN`](https://docs.github.com/en/actions/tutorials/authenticate-with-github_token) without installing the OpenCode GitHub App. Just make sure to grant the required permissions in your workflow:
+  Use this mode to run without installing the OpenCode GitHub App. Pass the token through `env` and grant the permissions required by your workflow:
 
   ```yaml
   permissions:
-    id-token: write
     contents: write
     pull-requests: write
     issues: write
+
+  steps:
+    - uses: anomalyco/opencode/github@latest
+      env:
+        ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        model: anthropic/claude-sonnet-4-20250514
+        use_github_token: true
   ```
 
-  You can also use a [personal access tokens](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens)(PAT) if preferred.
+  `id-token: write` is not required in this mode because OIDC exchange is skipped. To use a [personal access token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens) or another GitHub App token, store it as a secret and pass that secret as `GITHUB_TOKEN` instead.
 
 ---