chore: remove Base Account and migration content

.github/pull_request_template.md

@@ -31,7 +31,7 @@ By checking the box below, I agree and represent on behalf of the protocol/entit
 - the plugin and the underlying protocol comply with all applicable laws, and my API enforces the same geofencing and eligibility restrictions as my own user-facing app;
 - the plugin is in full compliance with our protocol's/entity's then-current terms and conditions, and if not, submission and use thereafter is considered a formal written exemption to such terms and conditions;
 - the plugin accurately describes its behavior and contains no hidden, deceptive, or malicious instructions, and my API will not return malicious or unexpected calldata;
-- the protocol/entity is solely responsible for the plugin and is submitting a plugin is subject to the [Base Account and Base App Terms of Service](https://wallet.coinbase.com/terms-of-service) as using a "Service"; and
+- the protocol/entity is solely responsible for the plugin, and submitting a plugin is subject to the [applicable terms of service](https://wallet.coinbase.com/terms-of-service) as using a "Service"; and
 - Base may modify, decline to list, or remove the plugin at any time, for any reason.
 
 - [ ] I have read and agree to the Base MCP Plugin Submission Agreement above.

README.md

@@ -2,7 +2,7 @@
 
 ![Base](logo.webp)
 
-[Agent Skills](https://agentskills.io) for building on [Base](https://base.org). These skills enable AI agents to connect to Base, deploy contracts, integrate wallets, run nodes, and more.
+[Agent Skills](https://agentskills.io) for building on [Base](https://base.org). These skills enable AI agents to connect to Base, deploy contracts, register agents, run nodes, and more.
 
 <!-- Badge row 1 - status -->
 
@@ -29,7 +29,7 @@ Consolidated skills that cover the most common use cases. Each uses progressive
 
 | Skill | Install | Description |
 | ----- | ------- | ----------- |
-| [build-on-base](./skills/build-on-base/SKILL.md) | `npx skills add base/skills --skill build-on-base` | Complete Base development playbook: network, contracts, wallet auth, payments, attribution, and migrations. Consolidates all individual skills into one. |
+| [build-on-base](./skills/build-on-base/SKILL.md) | `npx skills add base/skills --skill build-on-base` | Complete Base development playbook: network, contracts, attribution, agent registration, and nodes. Consolidates all individual skills into one. |
 | [base-mcp](./skills/base-mcp/SKILL.md) | `npx skills add base/skills --skill base-mcp` | Base MCP server — gives your AI assistant a wallet via mcp.base.org. Sending, swapping, signing, batched calls, balances, and partner plugins for lending, swaps, and more. |
 | [vibenet](./skills/vibenet/SKILL.md) | `npx skills add base/skills --skill vibenet` | Build on [vibenet](https://chain.base.org/vibenet), the Base Vibes devnet for native account abstraction (EIP-8130) and Cobalt 200ms native blocks, with viem: smart accounts, batched calls, session keys and policies, ERC-8168 payer gas sponsorship, and millisecond block timestamps. |
 
@@ -55,14 +55,6 @@ Deploy my contract to Base Sepolia
 How do I connect to Base mainnet?
 ```
 
-```text
-Add Sign in with Base to my app
-```
-
-```text
-Convert my existing Farcaster miniapp to a standard app on Base
-```
-
 ```text
 Register my trading bot and add builder code attribution to its transactions
 ```

skills/build-on-base/SKILL.md

@@ -6,29 +6,22 @@ description: >
   forge create, BaseScan verification, CDP faucet, testnet ETH, deploy contract to Base;
   (3) Builder Codes — ERC-8021 attribution suffix, referral fees, dataSuffix for Wagmi/Viem/Privy/
   ethers.js/window.ethereum, transaction attribution, earn referral fees, append builder code;
-  (4) Base Account SDK — Sign in with Base (SIWB), Base Pay, USDC payments, paymasters, gas
-  sponsorship, sub-accounts, spend permissions, prolinks, batch transactions, smart wallet,
-  payment link, recurring subscription; (5) Agent registration — trading bots, AI agents, automated
+  (4) Agent registration — trading bots, AI agents, automated
   senders, ERC-8021 attribution wiring, base.dev API, register agent, builder code registration;
-  (6) Node operation — run Base node, Reth setup, hardware requirements, self-hosted RPC, sync;
-  (7) Migrations — migrate OnchainKit, OnchainKitProvider to WagmiProvider, wagmi migration,
-  remove onchainkit dependency, MiniKit to Farcaster SDK, convert miniapp, Farcaster miniapp to
-  regular app, convert Farcaster miniapp.
+  (5) Node operation — run Base node, Reth setup, hardware requirements, self-hosted RPC, sync.
 ---
 
 # Base Development
 
-Complete playbook for building on Base L2 — network setup, smart contracts, wallet auth, payments,
-developer tool attribution, and framework migrations.
+Complete playbook for building on Base L2 — network setup, smart contracts, developer tool
+attribution, agent registration, and node operation.
 
 ## Default Stack
 
 | Layer | Default |
 |-------|---------|
 | Network | Base Mainnet (8453) / Base Sepolia testnet (84532) |
 | Contracts | Foundry (`forge create` + BaseScan verification) |
-| Wallet auth | Base Account SDK (`@base-org/account`) |
-| Payments | Base Pay — USDC, gasless, settles in <2s |
 | Transactions | wagmi + viem |
 | Attribution | Builder Codes — ERC-8021 via `ox/erc8021` |
 | RPC (prod) | Dedicated node provider or self-hosted Reth |
@@ -37,10 +30,8 @@ developer tool attribution, and framework migrations.
 
 - **Never commit private keys** — use `cast wallet import` for Foundry keystores
 - **Never expose RPC API keys or CDP credentials client-side** — proxy through backend
-- **Never skip server-side payment verification** — always call `getPaymentStatus()` server-side and verify `sender`, `amount`, `recipient`; track processed tx IDs to prevent replay attacks
 - **Never send transactions without Builder Code attribution** — silent data loss, no errors, no warnings
 - **Validate all user-provided shell inputs** before constructing forge/cast commands (no spaces, semicolons, pipes)
-- **COOP headers for Base Account popups** — use `same-origin-allow-popups`, not `same-origin`
 
 ## Task Routing
 
@@ -52,11 +43,7 @@ Read the reference for your task:
 | **Deploy contracts** | Foundry deployment, BaseScan verification, faucet | [references/deploy-contracts.md](references/deploy-contracts.md) |
 | **Run a Base node** | Self-hosted RPC, Reth, hardware requirements | [references/run-node.md](references/run-node.md) |
 | **Builder Codes** | Add ERC-8021 attribution to transactions | [references/builder-codes/overview.md](references/builder-codes/overview.md) |
-| **Base Account SDK** | SIWB, Base Pay, subscriptions, sub-accounts | [references/base-account/overview.md](references/base-account/overview.md) |
 | **Register AI agent/bot** | Register wallet, get builder code, wire attribution | [references/agents/register.md](references/agents/register.md) |
-| **Migrate from OnchainKit** | OnchainKitProvider → wagmi, wallet/tx components | [references/migrations/onchainkit/overview.md](references/migrations/onchainkit/overview.md) |
-| **MiniKit → Farcaster SDK** | `@coinbase/onchainkit/minikit` → `@farcaster/miniapp-sdk` | [references/migrations/minikit-to-farcaster/overview.md](references/migrations/minikit-to-farcaster/overview.md) |
-| **Farcaster miniapp → regular app** | Remove Mini App host coupling, convert to Base/web app | [references/migrations/farcaster-miniapp-to-app.md](references/migrations/farcaster-miniapp-to-app.md) |
 
 ## Operating Procedure
 
@@ -69,7 +56,6 @@ Read the reference for your task:
 ## For Edge Cases and Latest API Changes
 
 - **AI-optimized docs**: [docs.base.org/llms.txt](https://docs.base.org/llms.txt)
-- **Base Account reference**: [docs.base.org/base-account](https://docs.base.org/base-account)
 - **Base chain docs**: [docs.base.org](https://docs.base.org)
 
 ## Installation