How do I install the Ens Primary Name skill?

Run npx skillmds@latest add bankrbot/ens-primary-name-2 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ens Primary Name safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ens Primary Name?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ens Primary Name free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ens Primary Name?

BankrBot (@bankrbot) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ens Primary Name by bankrbot — Agent Skill

Name: Ens Primary Name
Author: BankrBot

Ens Primary Name

Set your primary ENS name on Base and other L2s. Use when user wants to set their ENS name, configure reverse resolution, set primary name, or make their address resolve to an ENS name. Supports Base, Arbitrum, Optimism, and Ethereum mainnet.

BankrBot Updated Sep 21, 2026 1.2k repo stars

File contents

ENS Primary Name

Set your primary ENS name on Base and other L2 chains via the ENS Reverse Registrar.

A primary name creates a bi-directional link:

Forward: name.eth → 0x1234... (set in ENS resolver)
Reverse: 0x1234... → name.eth (set via this skill)

Requirements

Required: Bankr CLI

This skill requires the Bankr CLI for transaction signing:

bun install -g @bankr/cli
bankr login

The scripts use bankr agent to submit transactions like:

Submit this transaction: {"to": "0x...", "data": "0x...", "value": "0", "chainId": 8453}

Required: Node.js

Scripts use Node.js with viem for ENS namehash calculation and ABI encoding.

npm install -g viem

Quick Start

# Set primary name on Base
./scripts/set-primary.sh myname.eth

# Set on specific chain
./scripts/set-primary.sh myname.eth arbitrum

# Verify primary name is set
./scripts/verify-primary.sh 0x1234... base

# Set avatar (L1 only)
./scripts/set-avatar.sh myname.eth https://example.com/avatar.png

Supported Chains

Chain	Reverse Registrar
Base	`0x0000000000D8e504002cC26E3Ec46D81971C1664`
Arbitrum	`0x0000000000D8e504002cC26E3Ec46D81971C1664`
Optimism	`0x0000000000D8e504002cC26E3Ec46D81971C1664`
Ethereum	`0x283F227c4Bd38ecE252C4Ae7ECE650B0e913f1f9`

Prerequisites

Own or control an ENS name - The name must be registered
Forward resolution configured - The name must resolve to your address
Native tokens for gas - ETH on the target chain

How It Works

Checks forward resolution exists (name → address)
Warns if chain-specific address is not set
Encodes setName(string) calldata
Submits transaction to the Reverse Registrar
Verifies the primary name is correctly set

Verification

The skill automatically verifies after setting. You can also verify manually:

./scripts/verify-primary.sh 0xYourAddress base

Output:

✅ Reverse record: 0x1234... → myname.eth
✅ Forward resolution: myname.eth → 0x1234...
🎉 PRIMARY NAME VERIFIED: myname.eth

Setting Avatars

# Set avatar (requires L1 transaction + ETH for gas)
./scripts/set-avatar.sh myname.eth https://example.com/avatar.png

Supported avatar formats:

HTTPS: https://example.com/image.png
IPFS: ipfs://QmHash
NFT: eip155:1/erc721:0xbc4ca.../1234

Note: Avatars are text records stored on Ethereum mainnet. The script automatically looks up the resolver for your ENS name (works with both public and custom resolvers).

Troubleshooting

Issue	Solution
"Transaction reverted"	Ensure the ENS name resolves to your address
"Name not showing"	Forward resolution may not be set for that chain's cointype
"Not authorized"	You must call from the address the name resolves to
"Bankr CLI not found"	Install with `bun install -g @bankr/cli && bankr login`
"Chain-specific address not set"	Set the address for the target chain via app.ens.domains
"Could not find resolver"	Ensure the ENS name exists and has a resolver set

Links

ENS Docs: https://docs.ens.domains/web/reverse
ENS App: https://app.ens.domains
Primary Names UI: https://primary.ens.domains
Bankr CLI: https://www.npmjs.com/package/@bankr/cli

---name: ens-primary-name-2description: Set your primary ENS name on Base and other L2s. Use when user wants to set their ENS name, configure reverse resolution, set primary name, or make their address resolve to an ENS name. Supports Base, Arbitrum, Optimism, and Ethereum mainnet.---# ENS Primary NameSet your primary ENS name on Base and other L2 chains via the ENS Reverse Registrar.A primary name creates a bi-directional link:- **Forward:** `name.eth` → `0x1234...` (set in ENS resolver)- **Reverse:** `0x1234...` → `name.eth` (set via this skill)## Requirements### Required: Bankr CLIThis skill requires the **Bankr CLI** for transaction signing:```bashbun install -g @bankr/clibankr login```The scripts use `bankr agent` to submit transactions like:```Submit this transaction: {"to": "0x...", "data": "0x...", "value": "0", "chainId": 8453}```### Required: Node.jsScripts use Node.js with `viem` for ENS namehash calculation and ABI encoding.```bashnpm install -g viem```## Quick Start```bash# Set primary name on Base./scripts/set-primary.sh myname.eth# Set on specific chain./scripts/set-primary.sh myname.eth arbitrum# Verify primary name is set./scripts/verify-primary.sh 0x1234... base# Set avatar (L1 only)./scripts/set-avatar.sh myname.eth https://example.com/avatar.png```## Supported Chains| Chain | Reverse Registrar ||-------|-------------------|| Base | `0x0000000000D8e504002cC26E3Ec46D81971C1664` || Arbitrum | `0x0000000000D8e504002cC26E3Ec46D81971C1664` || Optimism | `0x0000000000D8e504002cC26E3Ec46D81971C1664` || Ethereum | `0x283F227c4Bd38ecE252C4Ae7ECE650B0e913f1f9` |## Prerequisites1. **Own or control an ENS name** - The name must be registered2. **Forward resolution configured** - The name must resolve to your address3. **Native tokens for gas** - ETH on the target chain## How It Works1. Checks forward resolution exists (name → address)2. Warns if chain-specific address is not set3. Encodes `setName(string)` calldata4. Submits transaction to the Reverse Registrar5. Verifies the primary name is correctly set## VerificationThe skill automatically verifies after setting. You can also verify manually:```bash./scripts/verify-primary.sh 0xYourAddress base```Output:```✅ Reverse record: 0x1234... → myname.eth✅ Forward resolution: myname.eth → 0x1234...🎉 PRIMARY NAME VERIFIED: myname.eth```## Setting Avatars```bash# Set avatar (requires L1 transaction + ETH for gas)./scripts/set-avatar.sh myname.eth https://example.com/avatar.png```**Supported avatar formats:**- HTTPS: `https://example.com/image.png`- IPFS: `ipfs://QmHash`- NFT: `eip155:1/erc721:0xbc4ca.../1234`**Note:** Avatars are text records stored on Ethereum mainnet. The script automatically looks up the resolver for your ENS name (works with both public and custom resolvers).## Troubleshooting| Issue | Solution ||-------|----------|| "Transaction reverted" | Ensure the ENS name resolves to your address || "Name not showing" | Forward resolution may not be set for that chain's cointype || "Not authorized" | You must call from the address the name resolves to || "Bankr CLI not found" | Install with `bun install -g @bankr/cli && bankr login` || "Chain-specific address not set" | Set the address for the target chain via app.ens.domains || "Could not find resolver" | Ensure the ENS name exists and has a resolver set |## Links- ENS Docs: https://docs.ens.domains/web/reverse- ENS App: https://app.ens.domains- Primary Names UI: https://primary.ens.domains- Bankr CLI: https://www.npmjs.com/package/@bankr/cli

Frequently asked questions