Minor Changes

• f625075: Centralize Cloudflare account resolution and remove the account-management tools.

  The accounts_list and set_active_account tools are removed. Account scoping is now
  resolved automatically by an AccountManager (via the new server.accountTool()
  registration), in priority order:

  1. Auth-pinned account — an account-scoped API token's account, or an OAuth token with a
     single account, is used automatically (no account_id parameter is exposed).
  2. cf-account-id request header — for tokens that can access multiple accounts, set this
     header in your MCP client config to pick an account.
  3. account_id tool argument — for multi-account tokens, account-scoped tools expose an
     optional account_id parameter; when omitted (and no header is set) the tool returns an
     error listing the accounts you can use. Multi-account credentials also list their accounts
     in the server's initialize instructions.

  All tool error responses now set isError: true so clients can distinguish failures.

Patch Changes

• a358e69: Upgrade @cloudflare/workers-oauth-provider 0.4.0 → 0.7.0.

  No tool or behavior changes. The only API change affecting this repo is that
  TokenExchangeCallbackOptions now carries a required grantId field, which only
  touched a test fixture (the provider supplies it at runtime).

• f625075: Upgrade core dependencies: agents 0.2.19 → 0.13.3, @modelcontextprotocol/sdk 1.20.2 →
  1.29.0, zod 3 → 4, and ai 4 → 6.

  No user-facing tool or behavior changes. Internal adjustments for the new versions:

  • zod 4: z.record(...) now takes an explicit key schema; z.string().ip() replaced with
    z.ipv4()/z.ipv6() validation; dropped the removed objectOutputType helper.
  • agents 0.13: McpAgent env generic is constrained to Cloudflare.Env.
  • MCP SDK 1.29: tool annotations hints must be flat ({ title, readOnlyHint, ... }) — fixes a
    latent bug where nested hints were silently ignored.
  • ai 6: eval tooling updated (LanguageModel, inputSchema, stopWhen/stepCountIs, tool-call input).