diff --git a/packages/opencode/src/auth/github-copilot.ts b/packages/opencode/src/auth/github-copilot.ts
deleted file mode 100644
index bd5740c9..00000000
--- a/packages/opencode/src/auth/github-copilot.ts
+++ /dev/null
@@ -1,147 +0,0 @@
-import z from "zod"
-import { Auth } from "./index"
-import { NamedError } from "../util/error"
-
-export namespace AuthGithubCopilot {
-  const CLIENT_ID = "Iv1.b507a08c87ecfe98"
-  const DEVICE_CODE_URL = "https://github.com/login/device/code"
-  const ACCESS_TOKEN_URL = "https://github.com/login/oauth/access_token"
-  const COPILOT_API_KEY_URL = "https://api.github.com/copilot_internal/v2/token"
-
-  interface DeviceCodeResponse {
-    device_code: string
-    user_code: string
-    verification_uri: string
-    expires_in: number
-    interval: number
-  }
-
-  interface AccessTokenResponse {
-    access_token?: string
-    error?: string
-    error_description?: string
-  }
-
-  interface CopilotTokenResponse {
-    token: string
-    expires_at: number
-    refresh_in: number
-    endpoints: {
-      api: string
-    }
-  }
-
-  export async function authorize() {
-    const deviceResponse = await fetch(DEVICE_CODE_URL, {
-      method: "POST",
-      headers: {
-        Accept: "application/json",
-        "Content-Type": "application/json",
-        "User-Agent": "GitHubCopilotChat/0.26.7",
-      },
-      body: JSON.stringify({
-        client_id: CLIENT_ID,
-        scope: "read:user",
-      }),
-    })
-    const deviceData: DeviceCodeResponse = await deviceResponse.json()
-    return {
-      device: deviceData.device_code,
-      user: deviceData.user_code,
-      verification: deviceData.verification_uri,
-      interval: deviceData.interval || 5,
-      expiry: deviceData.expires_in,
-    }
-  }
-
-  export async function poll(device_code: string) {
-    const response = await fetch(ACCESS_TOKEN_URL, {
-      method: "POST",
-      headers: {
-        Accept: "application/json",
-        "Content-Type": "application/json",
-        "User-Agent": "GitHubCopilotChat/0.26.7",
-      },
-      body: JSON.stringify({
-        client_id: CLIENT_ID,
-        device_code,
-        grant_type: "urn:ietf:params:oauth:grant-type:device_code",
-      }),
-    })
-
-    if (!response.ok) return "failed"
-
-    const data: AccessTokenResponse = await response.json()
-
-    if (data.access_token) {
-      // Store the GitHub OAuth token
-      await Auth.set("github-copilot", {
-        type: "oauth",
-        refresh: data.access_token,
-        access: "",
-        expires: 0,
-      })
-      return "complete"
-    }
-
-    if (data.error === "authorization_pending") return "pending"
-
-    if (data.error) return "failed"
-
-    return "pending"
-  }
-
-  export async function access() {
-    const info = await Auth.get("github-copilot")
-    if (!info || info.type !== "oauth") return
-    if (info.access && info.expires > Date.now()) return info.access
-
-    // Get new Copilot API token
-    const response = await fetch(COPILOT_API_KEY_URL, {
-      headers: {
-        Accept: "application/json",
-        Authorization: `Bearer ${info.refresh}`,
-        "User-Agent": "GitHubCopilotChat/0.26.7",
-        "Editor-Version": "vscode/1.99.3",
-        "Editor-Plugin-Version": "copilot-chat/0.26.7",
-      },
-    })
-
-    if (!response.ok) return
-
-    const tokenData: CopilotTokenResponse = await response.json()
-
-    // Store the Copilot API token
-    await Auth.set("github-copilot", {
-      type: "oauth",
-      refresh: info.refresh,
-      access: tokenData.token,
-      expires: tokenData.expires_at * 1000,
-    })
-
-    return tokenData.token
-  }
-
-  export const DeviceCodeError = NamedError.create("DeviceCodeError", z.object({}))
-
-  export const TokenExchangeError = NamedError.create(
-    "TokenExchangeError",
-    z.object({
-      message: z.string(),
-    }),
-  )
-
-  export const AuthenticationError = NamedError.create(
-    "AuthenticationError",
-    z.object({
-      message: z.string(),
-    }),
-  )
-
-  export const CopilotTokenError = NamedError.create(
-    "CopilotTokenError",
-    z.object({
-      message: z.string(),
-    }),
-  )
-}