[Smart Accounts Kit] Add guide for EOA as a signer

[AyushBherwani1998]

Description

• Adds guide for EOA as a signer

Issue(s) fixed

Part of #2424

Preview

Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

---

Note

Adds an EOA (e.g., MetaMask) signer guide and links it from the sidebar and the signers index.

• Guides:
  • New guides/smart-accounts/signers/eoa-wallets.md: EOA signer setup (deps install, Wagmi/TanStack provider config, Sepolia config, create smart account with Wallet Client signer).
• Navigation:
  • Sidebar: add guides/smart-accounts/signers/eoa-wallets under “Configure signers”.
  • Signers index: add CardList entry linking to EOA signer guide.

^{Written by Cursor Bugbot for commit 27b80e1. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Review	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Dec 15, 2025 5:34am

[m4sterbunny]

minor fixes

[bgravenorst]

Some more feedback

[bgravenorst]

lgtm